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A collection of scholarly literature created by experts and professionals in their fields. Included are theses, books, abstracts and articles.

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This article is from Nephro-urology monthly , volume 4 . Abstract Background: Playing video games in childhood may help achieve advanced laparoscopic skills later in life. The virtual operating room will soon become a reality, as “doctor games 2.0” will doubtlessly begin to incorporate virtual laparoscopic techniques. Objectives: To teach surgical skills to schoolchildren in order to attract them to urology as a professional choice later in life. Materials and Methods: As part of EAU...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3614275
PubMed Central
by Rizwan, SA; Nongkynrih, Baridalyne; Gupta, Sanjeev Kumar
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This article is from Indian Journal of Community Medicine : Official Publication of Indian Association of Preventive & Social Medicine , volume 38 . Abstract Air pollution is responsible for many health problems in the urban areas. Of late, the air pollution status in Delhi has undergone many changes in terms of the levels of pollutants and the control measures taken to reduce them. This paper provides an evidence-based insight into the status of air pollution in Delhi and its effects on...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3612296
PubMed Central
by Nielsen, Peter E.
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This article is from Artificial DNA, PNA & XNA , volume 3 . Abstract The recent claim by Wolfe-Simon et al. that the Halomonas bacterial strain GFAJ-1 when grown in arsenate-containing medium with limiting phosphate is able to substitute phosphate with arsenate in biomolecules including nucleic acids and in particular DNA1 arose much skepticism, primarily due to the very limited chemical stability of arsenate esters (see ref. 2 and references therein). A major part of the criticisms was...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3368811
PubMed Central
by Ainsworth, Barbara E; Der Ananian, Cheryl; Soroush, Ali; Walker, Jenelle; Swan, Pamela; Poortvliet, Eric; Yngve, Agneta
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This article is from BMC Public Health , volume 12 . Abstract Background: We describe the study design and methods used in a 9-month pedometer-based worksite intervention called “ASUKI Step” conducted at the Karolinska Institutet (KI) in Stockholm, Sweden and Arizona State University (ASU) in the greater Phoenix area, Arizona. Methods/design: “ASUKI Step” was based on the theory of social support and a quasi-experimental design was used for evaluation. Participants included 2,118...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3491028
PubMed Central
by Yadav, Rahul; Dalela, Divakar; Goyal, Neeraj K.; Nagathan, Deepak; Sankhwar, Satya N.
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This article is from Journal of Surgical Technique and Case Report , volume 4 . Abstract There are many urological and non-urological indications which require bilateral double J stenting. We describe a point of technique for simultaneous removal of both the Double J stents. Both the stents are held by stent removing forceps at a point where they cross each other and then removed in one go with the help of cystoscope. Medline search did not reveal any techniques of removing two DJ stents in one...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3673361
This article is a commentary on the verdict of the "L'Aquila Six", the group of bureaucrats and scientists tried by an Italian court as a result of their public statements in advance of the quake of 2009 Apr. 6 that left the city in ruins and cause more than 300 deaths. It was not the worst such catastrophic event in recent Italian history, but it was one of -- if not the -- worst failures of risk assessment and preventive action. The six were found guilty and condemned by a first...
Source: http://arxiv.org/abs/1211.3175v1
PubMed Central
by Paillat, Thierry; Touchard, Gerard; Bertrand, Yves
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This article is from Sensors (Basel, Switzerland) , volume 12 . Abstract At a solid/liquid interface, physico-chemical phenomena occur that lead to the separation of electrical charges, establishing a zone called electrical double layer. The convection of one part of these charges by the liquid flow is the cause of the flow electrification phenomenon which is suspected of being responsible of incidents in the industry. The P' Institute of Poitiers University and CNRS has developed an original...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3522915
This article is from International Journal of Preventive Medicine , volume 3 . Abstract Most oral and oropharyngeal squamous cell carcinomas (OOSCCs) are in advanced stages at diagnosis, and treatment does not improve survival rates. Early recognition and diagnosis of OOSCCs might improve patient survival and reduce treatment-related morbidity. The purpose of this article is to create awareness among the general practitioners to recognize the premalignant and early malignant lesions and to...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3483004
Arxiv.org
by F. Scardina; M. Colonna; S. Plumari; V. Greco
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We study the evolution of the quark-gluon composition of the plasma created in ultra-Relativistic Heavy Ion Collisions (uRHIC's) employing a partonic transport theory that includes both elastic and inelastic collisions plus a mean fields dynamics associated to the widely used quasi-particle model. The latter, able to describe lattice QCD thermodynamics, implies a "chemical" equilibrium ratio between quarks and gluons strongly increasing as $T\rightarrow T_c$, the phase transition...
Source: http://arxiv.org/abs/1202.2262v1
PubMed Central
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This article is from BMC Public Health , volume 12 . Abstract Background: There is an increasing awareness of the impact of parental risk perception on the weight course of the child and the parent’s readiness to engage in preventive efforts, but only less is known about factors related to the parental perception of the right time for the implementation of preventive activities. The aim of this study was to examine parental perceptions of the appropriate time to engage in child weight...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3488478
PubMed Central
by Snelgrove, John W; Jasudavisius, Amanda M; Rowe, Bradley W; Head, Evan M; Bauer, Greta R
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This article is from BMC Health Services Research , volume 12 . Abstract Background: Members of the transgender community have identified healthcare access barriers, yet a corresponding inquiry into healthcare provider perspectives has lagged. Our aim was to examine physician perceptions of barriers to healthcare provision for transgender patients. Methods: This was a qualitative study with physician participants from Ontario, Canada. Semi-structured interviews were used to capture a...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3464167
Arxiv.org
by Leonid S. Pilyugin; Eva K. Grebel; Lars Mattsson
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We suggest a new way of the determining abundances and electron temperatures in HII regions from strong emission lines. Our approach is based on the standard assumption that HII regions with similar intensities of strong emission lines have similar physical properties and abundances. A "counterpart" for a studied HII region may be chosen among HII regions with well-measured abundances (reference HII regions) by comparison of carefully chosen combinations of strong line intensities....
Source: http://arxiv.org/abs/1205.5716v1
Arxiv.org
by M. Villata
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The unexpected discovery of the accelerated cosmic expansion in 1998 has filled the Universe with the embarrassing presence of an unidentified "dark energy", or cosmological constant, devoid of any physical meaning. While this standard cosmology seems to work well at the global level, improved knowledge of the kinematics and other properties of our extragalactic neighborhood indicates the need for a better theory. We investigate whether the recently suggested repulsive-gravity...
Source: http://arxiv.org/abs/1201.3810v1
Arxiv.org
by Hooman Davoudiasl; Hye-Sung Lee; William J. Marciano
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General consequences of mass mixing between the ordinary Z boson and a relatively light Z_d boson, the "dark" Z, arising from a U(1)_d gauge symmetry, associated with a hidden sector such as dark matter, are examined. New effects beyond kinetic mixing are emphasized. Z-Z_d mixing introduces a new source of low energy parity violation well explored by possible future atomic parity violation and planned polarized electron scattering experiments. Rare K (B) meson decays into pi (K) l^+...
Source: http://arxiv.org/abs/1203.2947v3
This article is from Microbial Cell Factories , volume 11 . Abstract Background: Lactic acid bacteria (LAB) play an important role in agricultural as well as industrial biotechnology. Development of improved LAB strains using e.g. library approaches is often limited by low transformation efficiencies wherefore one reason could be differences in the DNA methylation patterns between the Escherichia coli intermediate host for plasmid amplification and the final LAB host. In the present study, we...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3526553
Arxiv.org
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We demonstrate that assuming the "discrete" vacuum geometry in the Minkowskian Higgs model with vacuum BPS monopole solutions can justify the Dirac fundamental quantization of that model. The important constituent of this quantization is getting various rotary effects, including collective solid rotations inside the physical BPS monopole vacuum, and just assuming the "discrete" vacuum geometry seems to be that thing able to justify these rotary effects. More precisely,...
Source: http://arxiv.org/abs/hep-th/0701097v10
Arxiv.org
by S. Akras; W. Steffen
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BD +30 3639 is a member of a group of uncommon planetary nebula with Wolf-Rayet central star and higher expansion velocities in [O III] than in [N II] lines. Images and high-resolution spectra from the literature are used in order to construct a 3-D model of the nebula using the morpho-kinematic code SHAPE. We find that two homologous expansion laws are needed for the [N II] and [O III] shell. We conclude that the internal velocity field of BD +30 3639 decreases with the distance from the...
Source: http://arxiv.org/abs/1203.3579v1
PubMed Central
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This article is from Journal of Basic and Clinical Pharmacy , volume 3 . Abstract Study of ethical behavior among medical representatives in the profession is an under-portrayed component that deserves further perusal in the pharmaceutical industry. The purpose of this study is to find out the influence of organizational culture on ethical behavior of medical representatives. Medical representatives working for both domestic and multinational companies constitutes the sample (n=300). Data is...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3979241
PubMed Central
by Matthews, Anne; Brennan, Graham; Kelly, Paul; McAdam, Chloe; Mutrie, Nanette; Foster, Charles
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This article is from BMC Public Health , volume 12 . Abstract Background: This study aimed to examine the experiences of walking promotion professionals on the range and effectiveness of recruitment strategies used within community based walking programmes within the United Kingdom. Methods: Two researchers recruited and conducted semi-structured interviews with managers and project co-ordinators of community based walking programmes, across the UK, using a purposive sampling frame. Twenty...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3490991
PubMed Central
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This article is from Cell Cycle , volume 11 . Abstract Comment on: Menendez JA, et al. Cell Cycle 2012; 11:2782–92.
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3442906
PubMed Central
by Huppertz-Hauss, Gert; Chengarov, Lubomir; Dahler, Stein; J?rgensen, Anita; Moritz, Volker; Paulsen, J?rn; Hoff, Geir
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This article is from BMC Gastroenterology , volume 12 . Abstract Background: Logistics handling referrals for gastroscopy may be more time consuming than the examination itself. For the patient, "drop in" gastroscopy may reduce uncertainty, inadequate therapy and time off work. Methods: After an 8-9 month run-in period we asked patients, hospital staff and GPs to fill in a questionnaire to evaluate their experience with "drop in" gastroscopy and gastroscopy by appointment,...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3293713
Arxiv.org
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This is an introductory chapter of the book in progress on quantum foundations and incompleteness of quantum mechanics. Quantum mechanics is represented as statistical mechanics of classical fields.
Source: http://arxiv.org/abs/1204.5172v1
Arxiv.org
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We demonstrate that a stable particle with flavor mixing, confined in a gravitational potential can gradually and irreversibly escape -- or "evaporate" -- from it. This effect is due to mass eigenstate conversions which occur in interactions (scattering) of mass states with other particles even when the energy exchange between them is vanishing. The evaporation and conversion are quantum effects not related to flavor oscillations, particle decay, quantum tunneling or other well-known...
Source: http://arxiv.org/abs/1201.5697v1
PubMed Central
by Rafati, Maryam; Ghadirzadeh, Mohammad R; Heshmati, Yaser; Adibi, Homeira; Keihanidoust, Zarrintaj; Eshraghian, Mohammad R; Dastan, Jila; Hoseini, Azadeh; Purhoseini, Marzieh; Ghaffari, Saeed R
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This article is from Molecular Cytogenetics , volume 5 . Abstract Background: Cryptic subtelomeric rearrangements have been proposed as a significant cause of sporadic intellectual disability (ID) but the role of such aberrations in familial ID has not yet been studied. As positive family history of ID had been proposed as an important and significant predicting factor of subtelomeric rearrangements, it was assumed that the contribution of subtelomeric aberrations in familial ID would be much...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3284400
PubMed Central
by Domingos, Renan F; Vieira, Monica L; Romero, Eliete C; Goncales, Amane Paldes; de Morais, Zenaide M; Vasconcellos, Silvio A; Nascimento, Ana L T O
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This article is from BMC Microbiology , volume 12 . Abstract Background: Leptospirosis is considered a re-emerging infectious disease caused by pathogenic spirochaetes of the genus Leptospira. Pathogenic leptospires have the ability to survive and disseminate to multiple organs after penetrating the host. Leptospires were shown to express surface proteins that interact with the extracellular matrix (ECM) and to plasminogen (PLG). This study examined the interaction of two putative leptospiral...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3444417
Arxiv.org
by F. Tavecchio; G. Ghisellini
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We study the impact of the geometry of the broad line region (BLR) on the expected absorption, through the \gamma\gamma\rightarrow e^{\pm} process, of gamma rays produced in the relativistic jet of flat spectrum radio quasars (FSRQ). We consider "flat" (or "disky") BLR models, and use BLR spectra calculated with the photoionization code CLOUDY, already used to investigate the emission and the absorption of high-energy photons in FSRQ. We characterize the energy-dependent...
Source: http://arxiv.org/abs/1209.2291v1
Arxiv.org
by Shun'ya Mizoguchi; Shinya Tomizawa
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The dimensional reduction of the bosonic sector of five-dimensional minimal supergravity to a Lorentzian four-dimensional spacetime leads to a theory with a massless axion and a dilaton coupled to gravity and two U(1) gauge fields and the dimensionally reduced equations of motion have SL(2,R)/SO(2)-duality invariance. In our previous work, utilizing the duality invariance, we formulated solution-generation techniques within five-dimensional minimal supergravity. In this work, by choosing a...
Source: http://arxiv.org/abs/1201.3063v1
Arxiv.org
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For the general linear group $GL_n(k)$ over an algebraically closed field $k$ of characteristic $p$, there are two types of "twisting" operations that arise naturally on partitions. These are of the form $\lambda \rightarrow p\lambda$ and $\lambda \rightarrow \lambda + p^r\tau$ The first comes from the Frobenius twist, and the second arises in various tensor product situations, often from tensoring with the Steinberg module. This paper surveys and adds to an intriguing series of...
Source: http://arxiv.org/abs/1204.1045v1
Arxiv.org
by Beth Willman; Jay Strader
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A growing number of low luminosity and low surface brightness astronomical objects challenge traditional notions of both galaxies and star clusters. To address this, we propose a definition of galaxy independent of the cold dark matter model of the universe: A galaxy is a gravitationally bound set of stars whose properties cannot be explained by a combination of baryons and Newton's laws of gravity. After exploring observational diagnostics of this definition, we examine the classification of...
Source: http://arxiv.org/abs/1203.2608v2
Arxiv.org
by Sergey M. Kozyrev; Rinat A. Daishev
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The issue of the physical equivalence between the Einstein and Jordan conformal frames in Jordan-Brans-Dicke (JBD) theory is revised. Scalar-tensor theories equations are not invariant with respect to conformal transformations if one uses the same "gauge" fixing in Jordan and Einstein frames. We hope to have clarified some eventual obscure issues associated to the concept of conformal invariance of relativistic theories appearing in the literature, in particular the relationship...
Source: http://arxiv.org/abs/1207.2934v1
Arxiv.org
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Wave transport in a media with slow spatial gradient of its characteristics is found to exhibit a universal wave pattern ("gradient marker") in a vicinity of the maxima/minima of the gradient. The pattern is common for optics, quantum mechanics and any other propagation governed by the same wave equation. Derived analytically in adiabatic limit, it has an elegantly simple yet nontrivial single-cycle profile, which is found in perfect agreement with numerical simulations for specific...
Source: http://arxiv.org/abs/1207.6807v1
Arxiv.org
by R. Combescot; M. Combescot
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It has been recently suggested that the Bose-Einstein condensate formed by excitons in the dilute limit must be dark, i.e., not coupled to photons. Here, we show that, under a density increase, the dark exciton condensate must acquire a bright component due to carrier exchange in which dark excitons turn bright. This however requires a density larger than a threshold which seems to fall in the forbidden region of the phase separation between a dilute exciton gas and a dense electron-hole...
Source: http://arxiv.org/abs/1202.5976v2
PubMed Central
by Haddad, Slim; Mohindra, Katia Sarla; Siekmans, Kendra; Mak, Genevieve; Narayana, Delampady
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This article is from BMC Public Health , volume 12 . Abstract Background: The objective of this study is to investigate the magnitude and nature of health inequalities between indigenous (Scheduled Tribes) and non-indigenous populations, as well as between different indigenous groups, in a rural district of Kerala State, India. Methods: A health survey was carried out in a rural community (N = 1660 men and women, 18–96 years). Age- and sex-standardised prevalence of underweight (BMI 
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3441884
PubMed Central
by Tonoyan, Tamara; Muradyan, Lusine
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This article is from International Journal for Equity in Health , volume 11 . Abstract Introduction: Prevailing sociopolitical and economic obstacles have been implicated in the inadequate utilization and delivery of the Armenian health care system. Methods: A random survey of 1,000 local residents, from all administrative regions of Armenia, concerned with health care services cost and satisfaction was conducted. Participation in the survey was voluntary and the information was collected using...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3430552
Arxiv.org
by Julian Heeck; Werner Rodejohann
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To generate the minimal neutrino Majorana mass matrix that has a free solar mixing angle and Delta m_sol^2 = 0 it suffices to implement an O(2) symmetry, or one of its subgroups SO(2), Z_N (N>2), or D_N (N>2). This O(2) generalizes the hidden Z_2^s of lepton mixing and leads in addition automatically to mu-tau symmetry. Flavor-democratic perturbations, as expected e.g. from the Planck scale, then result in tri-bimaximal mixing. We present a minimal model with three Higgs doublets...
Source: http://arxiv.org/abs/1112.3628v2
PubMed Central
by Kasper, Ekkehard; Boruchow, Scott; Lam, Fred C.; Zinn, Pascal O.; Anderson, Matthew; Mahadevan, Anand
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This article is from Surgical Neurology International , volume 3 . Abstract Background:: Solitary fibrous tumors (SFTs) of the central nervous system are uncommon. Their biological features remain largely unknown; hence, the clinical management and prognosis is often challenging due to the lack of comprehensive data. For this reason, we present two cases of large SFTs to illustrate a comprehensive review. Methods:: This was a retrospective analysis of two patients: a 65-year-old male with a...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3424684
PubMed Central
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This article is from The International Journal of Behavioral Nutrition and Physical Activity , volume 9 . Abstract Background: Physical activity has been shown to reduce depression in people with coronary heart disease (CHD), however many people with CHD do not engage in sufficient levels of physical activity to reap its positive effects. People with depression and CHD are at particular risk of non-adherence to physical activity. Little is known about the barriers to and facilitators of...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3538554
PubMed Central
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This article is from BMC Research Notes , volume 5 . Abstract Background: Variations in hormone concentrations across the menstrual cycle affect human female mate preferences. It has been shown that around the time of ovulation human females prefer more masculine male voices, faces, and bodies while simultaneously preferring less faces that are more feminine. They prefer also displays of male dominance, males with more symmetrical faces, and the scent of males with high levels of body symmetry....
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3503651
Predicting X from Twitter is a popular fad within the Twitter research subculture. It seems both appealing and relatively easy. Among such kind of studies, electoral prediction is maybe the most attractive, and at this moment there is a growing body of literature on such a topic. This is not only an interesting research problem but, above all, it is extremely difficult. However, most of the authors seem to be more interested in claiming positive results than in providing sound and reproducible...
Source: http://arxiv.org/abs/1204.6441v1
This article is from Communicative & Integrative Biology , volume 5 . Abstract Mechanical loading influences skeletal structural integrity and bone remodeling. Application of a mechanical stimulus such as fluid flow shear stress to the bone osteocytes activates the cascade of mechanotransduction mediated by multiple signaling molecules. Hemichannels formed by connexin molecules are emerging as a candidate mechanosensor. Connexin 43 (Cx43) hemichannels open in response to mechanical...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3502221
PubMed Central
by Sun, Xueying; Jiang, Ruohan; Przepiorski, Aneta; Reddy, Shiva; Palmano, Kate P; Krissansen, Geoffrey W
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This article is from BMC Cancer , volume 12 . Abstract Background: Tamoxifen is used in hormone therapy for estrogen-receptor (ER)-positive breast cancer, but also has chemopreventative effects against ER-negative breast cancers. This study sought to investigate whether oral iron-saturated bovine lactoferrin (Fe-Lf), a natural product which enhances chemotherapy, could improve the chemotherapeutic effects of tamoxifen in the treatment of ER-negative breast cancers. Methods: In a model of breast...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3539967
PubMed Central
by Nkulu Kalengayi, Faustine Kyungu; Hurtig, Anna-Karin; Ahlm, Clas; Ahlberg, Beth Maina
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This article is from BMC Health Services Research , volume 12 . Abstract Background: Experiences from nations with population diversity show extensive evidence on the need for cultural and linguistic competence in health care. In Sweden, despite the increasing diversity, only few studies have focused on challenges in cross-cultural care. The aim of this study was to explore the perspectives and experiences of caregivers in caring for migrant patients in Northern Sweden in order to understand...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3557194
PubMed Central
by Groene, Raluca Oana; Orrego, Carola; Sunol, Rosa; Barach, Paul; Groene, Oliver
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This article is from BMJ quality & safety , volume 21 . Abstract Background: Handover practices at hospital discharge are relatively under-researched, particularly as regards the specific risks and additional requirements for handovers involving vulnerable patients with limited language, cognitive and social resources. Objective: To explore handover practices at discharge and to focus on the patients’ role in handovers and on the potential additional risks for vulnerable patients....
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3551198
Arxiv.org
by Claudia Frugiuele; Thomas Gregoire; Piyush Kumar; Eduardo Ponton
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A classification of phenomenologically interesting supersymmetric extensions of the Standard-Model with a $U(1)_R$ symmetry is presented. Some of these are consistent with subsets of leptonic or baryonic "R-parity violating" (RPV) operators, thereby providing a natural motivation for them. We then focus on a particular class of models in which the $U(1)_R$ symmetry coincides with lepton number when restricted to the SM sector. In this case, the extension of lepton number to the...
Source: http://arxiv.org/abs/1210.0541v2
Arxiv.org
by Claudia Frugiuele; Thomas Gregoire; Piyush Kumar; Eduardo Ponton
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We perform a detailed study of a variety of LHC signals in supersymmetric models where lepton number is promoted to an (approximate) U(1)_R symmetry. Such a symmetry has interesting implications for naturalness, as well as flavor- and CP-violation, among others. Interestingly, it makes large sneutrino vacuum expectation values phenomenologically viable, so that a slepton doublet can play the role of the down-type Higgs. As a result, (some of) the leptons and neutrinos are incorporated into the...
Source: http://arxiv.org/abs/1210.5257v1
PubMed Central
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This article is from Vascular Cell , volume 4 . Abstract Vascular Cell has launched a new series on macrophages and angiogenesis, a quickly evolving field critical to blood and lymphatic vessels during development, inflammation and tumorigenesis.
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3484013
PubMed Central
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This article is from mBio , volume 3 . Abstract Bacteria that infect the plant vascular system are among the most destructive kind of plant pathogens because pathogen proliferation in the vascular system will sooner or later shut down the plant’s water and nutrient supply and necessarily lead to wilting and, in the worst case, death of the entire plant. How bacterial plant pathogens adapted to life in the plant vascular system is still poorly understood. As described in a recent article,...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3445969
PubMed Central
by Anderson, Kate; Cunningham, Joan; Devitt, Jeannie; Preece, Cilla; Cass, Alan
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This article is from BMC Nephrology , volume 13 . Abstract Background: In common with Indigenous populations elsewhere, Indigenous Australians have higher incidence of end-stage kidney disease (ESKD), but lower transplantation rates than their non-Indigenous counterparts. Understanding how the demands of dialysis impact on, and are impacted by, the lives of Indigenous patients may provide important insight into treatment pathways and decision-making. Methods: We conducted semi-structured...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3518174
This article is from Ecology and Evolution , volume 2 . Abstract The long-term maintenance of specialized mutualisms remains an evolutionary puzzle. Recent focus has been on factors governing the stability of these mutualisms, including sanctions by the host, partner choice, and coevolutionary constraint, that is, the genetic correlation (rG) between fitness of both partners. So far these studies have been typically carried out in a single environment. Here, we ask if the genetic correlation...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3434918
PubMed Central
by Kelly, Jenny; Saggers, Sherry; Taylor, Kylie; Pearce, Glenn; Massey, Peter; Bull, Jennifer; Odo, Travis; Thomas, John; Billycan, Rosita; Judd, Jenni; Reilly, Susan; Ahboo, Shayne
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This article is from International Journal for Equity in Health , volume 11 . Abstract Introduction: This article outlines the meaningful participation of eight Aboriginal and Torres Strait Islander community members employed as community researchers investigating the impact of pandemic influenza in rural and remote Indigenous communities in Australia. Aboriginal and Torres Strait Islander participation is now a requirement of health research involving Aboriginal and Torres Strait Islander...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3439313
Arxiv.org
by Bogusław Broda
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A derivation of the Ricci dark energy from quantum field theory of fluctuating "matter" fields in a classical gravitational background is presented. The coupling to the dark energy, the parameter 'a', is estimated in the framework of our formalism, and qualitatively it appears to be within observational expectations.
Source: http://arxiv.org/abs/1111.5785v3
PubMed Central
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This article is from Journal of stem cell research & therapy . Abstract The capacity of adult skeletal muscle for regeneration appears to be limited, with progressive impairment in repair efficiency of injured muscles observed in chronic muscular disorders and during aging.While satellite cells, the committed adult muscle stem cells, are the main direct cell source supporting the regenerative potential of adult skeletal muscles, the characterization of the cell types and signals that...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3954569
PubMed Central
by Shivakumarswamy, Udasimath; Purushotham, R; Naik, HK Kumar; Nagesha, KR
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This article is from Journal of Human Reproductive Sciences , volume 5 . Abstract The androgen insensitivity (testicular feminization) syndrome was described by Morris in phenotypic females with 46XY karyotype, presenting with primary amenorrhea, adequate breast development, and absent or scanty pubic or axillary hair. Gonads consist usually of seminiferous tubules without spermatogenesis. These patients have a 5–10% risk of developing germ cell tumors, usually after the complete development...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3409924
PubMed Central
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This article is from Malaria Journal , volume 11 . Abstract Background: The objective of this study was to identify attitudes and misconceptions related to acceptance or refusal of indoor residual spraying (IRS) in Tanzania for both the general population and among certain groups (e.g., farmers, fishermen, community leaders, and women). Methods: This study was a series of qualitative, semi-structured, in-depth interviews and focus group discussions conducted from October 2010 to March 2011 on...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3438051
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by Rohlfing, Torsten; Avants, Brian
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This article is from BMC Research Notes , volume 5 . Abstract Background: Image registration is one of the most important and universally useful computational tasks in biomedical image analysis. A recent article by Xing & Qiu (IEEE Transactions on Pattern Analysis and Machine Intelligence, 33(10):2081–2092, 2011) is based on an inappropriately narrow conceptualization of the image registration problem as the task of making two images look alike, which disregards whether the established...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3740790
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The missionary zeal of many Bayesians of old has been matched, in the other direction, by a view among some theoreticians that Bayesian methods are absurd-not merely misguided but obviously wrong in principle. We consider several examples, beginning with Feller's classic text on probability theory and continuing with more recent cases such as the perceived Bayesian nature of the so-called doomsday argument. We analyze in this note the intellectual background behind various misconceptions about...
Source: http://arxiv.org/abs/1006.5366v5
PubMed Central
by Kelly, Angela; Kupul, Martha; Fitzgerald, Lisa; Aeno, Herick; Neo, James; Naketrumb, Richard; Siba, Peter; Kaldor, John M; Vallely, Andrew
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This article is from BMC Public Health , volume 12 . Abstract Background: Adult male surgical circumcision (MC) has been shown to reduce HIV acquisition in men and is recommended by the WHO for inclusion in comprehensive national HIV prevention programs in high prevalence settings. Only limited research to date has been conducted in countries experiencing moderate burden epidemics, where the acceptability, operational feasibility and potential epidemiological impact of MC remain unclear....
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3298502
PubMed Central
by Lindqvist, Anna-Karin; Kostenius, Catrine; Gard, Gunvor
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This article is from International Journal of Qualitative Studies on Health and Well-being , volume 7 . Abstract Many unhealthy behaviors are created during adolescence and follow the individual into adulthood. In addition, health behaviors often occur in clusters as those who are inactive are more likely to eat unhealthy food and smoke. This makes the early foundation of healthy behaviors vital. The aim was to describe and develop an understanding of adolescents’ awareness and experiences...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3379790
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by DeChristopher, Brian A.; Fan, Alice C.; Felsher, Dean W.; Wender, Paul A.
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This article is from Oncotarget , volume 3 . Abstract Bryostatin 1 is a naturally occurring complex macrolide with potent anti-neoplastic activity. However, its extremely low natural occurrence has impeded clinical advancement. We developed a strategy directed at the design of simplified and synthetically more accessible bryostatin analogs. Our lead analog, “picolog”, can be step-economically produced. Picolog, compared to bryostatin, exhibited superior growth inhibition of MYC-induced...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3292892
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This article is from Korean Journal of Anesthesiology , volume 62 . Abstract Transfusion-related acute lung injury (TRALI) is one of the leading causes of transfusion-related morbidity and mortality. However, it is frequently not diagnosed and under-reported, which could result in inappropriate treatment. Diagnostic definition for TRALI consists of hypoxia and bilateral pulmonary edema occurring during or within 6 hours of a transfusion in the absence of cardiac failure or intravascular volume...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3272533
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by W. V. Pogosov
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It is known that solutions of Richardson equations can be represented as stationary points of the "energy" of classical free charges on the plane. We suggest to consider "probabilities" of the system of charges to occupy certain states in the configurational space at the effective temperature given by the interaction constant, which goes to zero in the thermodynamical limit. It is quite remarkable that the expression of "probability" has similarities with the...
Source: http://arxiv.org/abs/1111.2907v2
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by Dániel Györffy; Péter Závodszky; András Szilágyi
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"Pull moves" is a popular move set for lattice polymer model simulations. We show that the proof given for its reversibility earlier is flawed, and some moves are irreversible, which leads to biases in the parameters estimated from the simulations. We show how to make the move set fully reversible.
Source: http://arxiv.org/abs/1210.0495v1
We construct a solution of an analog of the Schr\"{o}dinger equation for the Hamiltonian $ H_I (z, t, q_1, q_2, p_1, p_2) $ corresponding to the second equation $P_1^2$ in the Painleve I hierarchy. This solution is produced by an explicit change of variables from a solution of the linear equations whose compatibility condition is the ordinary differential equation $P_1^2$ with respect to $z$. This solution also satisfies an analog of the Schr\"{o}dinger equation corresponding to the...
Source: http://arxiv.org/abs/1204.4006v1
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by R. N. Bhatt; S. Johri
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We discuss the role of rare fluctuation effects in quantum condensed matter systems. In particular, we present recent numerical results of the effect of resonant states in Anderson's original model of electron localization. We find that such resonances give rise to anomalous behavior of eigenstates not just far in the Lifshitz tail, but rather for a substantial fraction of eigenstates, especially for intermediate disorder. The anomalous behavior includes non-analyticity in various properties as...
Source: http://arxiv.org/abs/1204.2782v1
PubMed Central
by Strecher, Victor; Caverlee, James; Caines, Andrew; Burton, Scott H; Tanner, Kesler W; Giraud-Carrier, Christophe G; West, Joshua H; Barnes, Michael D
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This article is from Journal of Medical Internet Research , volume 14 . Abstract Background: Twitter provides various types of location data, including exact Global Positioning System (GPS) coordinates, which could be used for infoveillance and infodemiology (ie, the study and monitoring of online health information), health communication, and interventions. Despite its potential, Twitter location information is not well understood or well documented, limiting its public health utility....
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3510712
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by M. Beccaria; S. Giombi; G. Macorini; R. Roiban; A. A. Tseytlin
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Using information from the marginality conditions of vertex operators for the AdS_5 x S^5 superstring, we determine the structure of the dependence of the energy of quantum string states on their conserved charges and the string tension proportional to lambda^(1/2). We consider states on the leading Regge trajectory in the flat space limit which carry one or two (equal) spins in AdS_5 or S^5 and an orbital momentum in S^5, with Konishi multiplet states being particular cases. We argue that the...
Source: http://arxiv.org/abs/1203.5710v3
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The problem of neutron scattering by the single magnetic atom is theoretically considered in the second order perturbation theory. It is demonstrated that elastic scattering of unpolarized neutron by magnetic atom is skewed, i.e. contains the term with the symmetry of mixed product of the atom magnetic moment and wave vectors of incident and scattered neutrons. The problem of dynamical diffraction of unpolarized neutrons by the perfect ferromagnetic crystal is investigated. The case is...
Source: http://arxiv.org/abs/1201.1758v2
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by Marella, Punnaiah C; Murarka, Shishir; Talluri, Siva K; Bashir, Faran
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This article is from North American Journal of Medical Sciences , volume 4 . Abstract Infective endocarditis is a rare cause of coronary embolism. This can result in myocardial infarction. Prompt identification is necessary as management is different from a regular myocardial infarction. Unlike in regular myocardial infarction, use of thrombolytics in this scenario could result in life-threatening complications and hence not indicated. In a patient who appears to be septic, embolic myocardial...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3421920
PubMed Central
by Slashinski, Melody J; McCurdy, Sheryl A; Achenbaum, Laura S; Whitney, Simon N; McGuire, Amy L
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This article is from BMC Medical Ethics , volume 13 . Abstract Background: Continued advances in human microbiome research and technologies raise a number of ethical, legal, and social challenges. These challenges are associated not only with the conduct of the research, but also with broader implications, such as the production and distribution of commercial products promising maintenance or restoration of good physical health and disease prevention. In this article, we document several...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3512494
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by Martin M. Block; Francis Halzen
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High energy measurements of the inelastic proton-proton cross sections, at the LHC at $\sqrt s$=7 TeV and by Auger at 57 TeV, have validated previous evidence from data collected over a wide range of energies that the total and inelastic cross sections for $pp$ and $\bar pp$ interactions saturate the Froissart bound of $\ln^2 s$. Although the data themselves did not cover truly asymptotic energies, our recent analysis of these data obtained the asymptotic ratio $\sigin/\sigtot=0.509\pm 0.021$,...
Source: http://arxiv.org/abs/1201.0960v1
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by Puri, Mahesh; Lamichhane, Prabhat; Harken, Tabetha; Blum, Maya; Harper, Cynthia C; Darney, Philip D; Henderson, Jillian T
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This article is from BMC Public Health , volume 12 . Abstract Background: Unsafe abortion has been a significant cause of maternal morbidity and mortality in Nepal. Since legalization in 2002, more than 1,200 providers have been trained and 487 sites have been certified for the provision of safe abortion services. Little is known about health care workers’ views on abortion legalization, such as their perceptions of women seeking abortion and the implications of legalization for...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3434092
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by Germano D'Abramo
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In this paper a way is suggested for calculating the probability of consecutive number strings within a sequence of n numbers randomly drawn (without replacement) among the set of the first N consecutive numbers, with N>>n. An explicit derivation is carried out for the special case of SuperEnalotto, nowadays the most famous lottery in Italy, with N=90 and n=6. It turns out that, on average, one every three drawings presents one or more consecutive number strings inside.
Source: http://arxiv.org/abs/1001.2972v3
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In this Letter we have explicitly constructed Generalized Coherent States for the Non-Commutative Harmonic Oscillator that directly satisfy the Generalized Uncertainty Principle (GUP). Our results have a smooth commutative limit. The states show fractional revival which provides an independent bound on the GUP parameter. Using this and similar bounds we derive the largest possible value of the (GUP induced) minimum length scale. Mandel parameter analysis shows that the statistics is...
Source: http://arxiv.org/abs/1110.5136v2
PubMed Central
by Haggqvist, Beatrice; Stenvall, Michael; Fjellman-Wiklund, Anncristine; Westerberg, Kristina; Lundin-Olsson, Lillemor
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This article is from BMC Geriatrics , volume 12 . Abstract Background: Falls are common in old age and may have serious consequences. There are many strategies to predict and prevent falls from occurring in long-term care and hospitals. The aim of this study was to describe licensed practical nurse experiences of predicting and preventing further falls when working with patients who had experienced a fall-related fracture. Licensed practical nurses are the main caretakers that work most closely...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3536659
PubMed Central
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This article is from BMC Pediatrics , volume 12 . Abstract Background: The number of new cases of type 1 diabetes mellitus (T1DM) has increased substantially in recent years and it is now one of the most common long-term endocrine disorders in childhood. In Sweden the child and family are hospitalised in accordance with the national guidelines for one to two weeks at diagnosis. The purpose of this study was to describe parents’ perceptions of the educational process when their child is newly...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3489565