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https://www.readbyqxmd.com/read/29166080/continuum-balances-from-extended-hamiltonian-dynamics
#1
Giulio G Giusteri, Paolo Podio-Guidugli, Eliot Fried
The classical procedure devised by Irving and Kirkwood in 1950 and completed slightly later by Noll produces counterparts of the basic balance laws of standard continuum mechanics starting from an ordinary Hamiltonian description of the dynamics of a system of material points. Post-1980 molecular dynamics simulations of the time evolution of such systems use extended Hamiltonians such as those introduced by Andersen, Nosé, and Parrinello and Rahman. The additional terms present in these extensions affect the statistical properties of the system so as to capture certain target phenomenologies that would otherwise be beyond reach...
June 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29152884/economic-impacts-of-avian-influenza-outbreaks-in-kerala-india
#2
G Govindaraj, R Sridevi, S N Nandakumar, R Vineet, P Rajeev, M K Binu, V Balamurugan, H Rahman
This study assessed the short-run impact to poultry farmers, duck hatcheries, control costs, compensation paid to stakeholders (transfer payments) and market reactions on own and substitute product prices and backwater tourism (boat operators) due to avian influenza (AI) outbreaks in Kuttanad region of Kerala, India, during 2014. The primary data from 91 poultry farms (duck farms, broiler chicken and backyard poultry), four hatcheries and 90 backwater boat owners were collected through pre-tested schedules...
November 19, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29151059/genome-wide-association-study-of-telomere-length-among-south-asians-identifies-a-second-rtel1-association-signal
#3
Dayana A Delgado, Chenan Zhang, Lin S Chen, Jianjun Gao, Shantanu Roy, Justin Shinkle, Mekala Sabarinathan, Maria Argos, Lin Tong, Alauddin Ahmed, Tariqul Islam, Muhammad Rakibuz-Zaman, Golam Sarwar, Hasan Shahriar, Mahfuzar Rahman, Mohammad Yunus, Farzana Jasmine, Muhammad G Kibriya, Habibul Ahsan, Brandon L Pierce
BACKGROUND: Leucocyte telomere length (TL) is a potential biomarker of ageing and risk for age-related disease. Leucocyte TL is heritable and shows substantial differences by race/ethnicity. Recent genome-wide association studies (GWAS) report ~10 loci harbouring SNPs associated with leucocyte TL, but these studies focus primarily on populations of European ancestry. OBJECTIVE: This study aims to enhance our understanding of genetic determinants of TL across populations...
November 18, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/29150447/the-prototypical-proton-coupled-oligopeptide-transporter-ydgr-from-escherichia-coli-facilitates-chloramphenicol-uptake-into-bacterial-cells
#4
Bala K Prabhala, Nanda G Aduri, Neha Sharma, Aqsa Shaheen, Arpan Sharma, Mazhar Iqbal, Paul R Hansen, Christoffer Brasen, Michael Gajhede, Moazur Rahman, Osman Mirza
Chloramphenicol (Cam) is a broad-spectrum antibiotic used to combat bacterial infections in humans and animals. Cam export from bacterial cells is one of the mechanisms by which pathogens resist Cam's antibacterial effects, and several different proteins are known to facilitate this process. However, to date no report exists on any specific transport protein that facilitates Cam uptake. The proton-coupled oligopeptide transporter (POT) YdgR from Escherichia coli is a prototypical member of the POT family, functioning in proton-coupled uptake of di- and tripeptides...
November 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29147453/ctla-4-genetic-variants-rs11571317-and-rs3087243-role-in-susceptibility-and-progression-of-breast-cancer
#5
Maruthi Goske, V R Vinish Ramachander, Prasanna Latha Komaravalli, P Fazul Rahman, Chandrasekhar Rao, Parveen Jahan
Background: Dysfunctional regulation at immune checkpoints may lead to escape of the tumor cells and gives a scope to set in the unresolved Breast cancer (BC). The major anti-tumor retort is cell-mediated response which involves T lymphocytes. CTLA-4 (Cytotoxic T lymphocyte associated protein-4) with immune suppressive function and tolerance is associated with various autoimmune diseases and cancers including BC. The present study deals with CTLA-4 gene selected polymorphisms (rs11571317 C/T and rs3087243G/A) to explore their relation with breast cancer susceptibility and progression in BC patients...
October 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29145813/impact-of-a-decision-aid-about-stratified-ovarian-cancer-risk-management-on-women-s-knowledge-and-intentions-a-randomised-online-experimental-survey-study
#6
Susanne F Meisel, Maddie Freeman, Jo Waller, Lindsay Fraser, Sue Gessler, Ian Jacobs, Jatinderpal Kalsi, Ranjit Manchanda, Belinda Rahman, Lucy Side, Jane Wardle, Anne Lanceley, Saskia C Sanderson
BACKGROUND: Risk stratification using genetic and other types of personal information could improve current best available approaches to ovarian cancer risk reduction, improving identification of women at increased risk of ovarian cancer and reducing unnecessary interventions for women at lower risk. Amounts of information given to women may influence key informed decision-related outcomes, e.g. knowledge. The primary aim of this study was to compare informed decision-related outcomes between women given one of two versions (gist vs...
November 16, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29143069/hemin-g-quadruplex-horseradish-peroxidase-mimicking-dnazyme-principle-and-biosensing-application
#7
Negar Alizadeh, Abdollah Salimi, Rahman Hallaj
Enzymes are macromolecular biological catalysts that accelerate chemical reactions. Enzyme labels are commonly used to obtain signal amplification in sensors and biosensors on the basis of reactions of some enzymes such as horseradish peroxidase (HRP). However, use of natural enzymes can encounter some challenges. Lately, nucleic acids that exhibit catalytic properties have attracted growing interest because they have certain advantages in comparison with traditional protein enzymes. DNAzymes are DNA-based catalysts, representing an important class of functional DNA, which have been widely used because of their excellent activity, programmability, signal amplification through catalytic turnover, high chemical stability, simple synthesis, and easy modification...
November 16, 2017: Advances in Biochemical Engineering/biotechnology
https://www.readbyqxmd.com/read/29133565/emergence-of-chromosome-borne-colistin-resistance-gene-mcr-1-in-clinical-isolates-of-klebsiella-pneumoniae-from-india
#8
Sanjay Singh, Ashutosh Pathak, Awadhesh Kumar, Mohibur Rahman, Avinash Singh, Bruno G Zorn, Kashi N Prasad
Transmissible colistin resistance gene, mcr-1 has breached the one of the last line of defense for treatment of infections caused by carbapenem-resistant Enterobacteriaceae….
November 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29118365/impaired-development-of-the-cerebral-cortex-in-infants-with-congenital-heart-disease-is-correlated-to-reduced-cerebral-oxygen-delivery
#9
Christopher J Kelly, Antonios Makropoulos, Lucilio Cordero-Grande, Jana Hutter, Anthony Price, Emer Hughes, Maria Murgasova, Rui Pedro A G Teixeira, Johannes K Steinweg, Sagar Kulkarni, Loay Rahman, Hui Zhang, Daniel C Alexander, Kuberan Pushparajah, Daniel Rueckert, Joseph V Hajnal, John Simpson, A David Edwards, Mary A Rutherford, Serena J Counsell
Neurodevelopmental impairment is the most common comorbidity associated with complex congenital heart disease (CHD), while the underlying biological mechanism remains unclear. We hypothesised that impaired cerebral oxygen delivery in infants with CHD is a cause of impaired cortical development, and predicted that cardiac lesions most associated with reduced cerebral oxygen delivery would demonstrate the greatest impairment of cortical development. We compared 30 newborns with complex CHD prior to surgery and 30 age-matched healthy controls using brain MRI...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29113725/hormonal-induction-of-ovulation-using-ovaprim%C3%A2-d-arg-6-pro-9-net-sgnrh-domperidone-and-its-impact-on-embryonic-development-of-wild-caught-longspine-scraper-capoeta-trutta-heckel-1843
#10
Vahid Zadmajid, Rahman Mirzaee, Hamid Hoseinpour, Nazir Vahedi, Ian Anthony Ernest Butts
Knowledge of gamete quality is a prerequisite for developing techniques to fertilize eggs and rear offspring for hatchery production. Our objective was to develop assisted reproductive techniques, via hormonal induction of final oocyte maturation (FOM), for Longspine scraper, Capoeta trutta. Fish were administered injections of salmon gonadotropin-releasing hormone analogue containing anti-dopaminergic drug (Ovaprim™) or saline (control). Effects of Ovaprim on induction of ovulation, gamete quality, embryonic development, and larval survival were later examined with serum steroid hormone levels and ovarian histology...
October 23, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29108521/minority-stressors-rumination-and-psychological-distress-in-monozygotic-twins-discordant-for-sexual-minority-status
#11
Liam Timmins, Katharine A Rimes, Qazi Rahman
BACKGROUND: Lesbian, gay, and bisexual (LGB) individuals report higher levels of depression and anxiety than heterosexual people. Genetic factors may be a 'common cause' of sexual minority status and psychological distress. Alternatively, these may be correlated because of non-genetic environmental factors (e.g. minority stressors). This study investigated minority stressors and distress in monozygotic twins discordant for sexual minority status. This design provides a test of the role of non-shared environmental factors while minimizing differences due to genetics...
November 7, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/29107145/overlapping-cd8-and-cd4-t-cell-epitopes-identification-for-the-progression-of-epitope-based-peptide-vaccine-from-nucleocapsid-and-glycoprotein-of-emerging-rift-valley-fever-virus-using-immunoinformatics-approach
#12
Utpal Kumar Adhikari, M Mizanur Rahman
Rift Valley fever virus (RVFV) is an emergent arthropod-borne zoonotic infectious viral pathogen which causes fatal diseases in the humans and ruminants. Currently, no effective and licensed vaccine is available for the prevention of RVFV infection in endemic as well as in non-endemic regions. So, an immunoinformatics-driven genome-wide screening approach was performed for the identification of overlapping CD8+ and CD4+ T-cell epitopes and also linear B-cell epitopes from the conserved sequences of the nucleocapsid (N) and glycoprotein (G) of RVFV...
October 30, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29104869/genomic-survey-characterization-and-expression-profile-analysis-of-the-sbp-genes-in-pineapple-ananas-comosus-l
#13
Hina Ali, Yanhui Liu, Syed Muhammad Azam, Zia Ur Rahman, S V G N Priyadarshani, Weimin Li, Xinyu Huang, Bingyan Hu, Junjie Xiong, Umair Ali, Yuan Qin
Gene expression is regulated by transcription factors, which play many significant developmental processes. SQUAMOSA promoter-binding proteins (SBP) perform a variety of regulatory functions in leaf, flower, and fruit development, plant architecture, and sporogenesis. 16 SBP genes were identified in pineapple and were divided into four groups on basis of phylogenetic analysis. Five paralogs in pineapple for SBP genes were identified with Ka/Ks ratio varied from 0.20 for AcSBP14 and AcSBP15 to 0.36 for AcSBP6 and AcSBP16, respectively...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/29103112/radiation-efficiency-and-nitrogen-fertilizer-impacts-on-sunflower-crop-in-contrasting-environments-of-punjab-pakistan
#14
Wajid Nasim, Ashfaq Ahmad, Asad Amin, Muhammad Tariq, Muhammad Awais, Muhammad Saqib, Khawar Jabran, Ghulam Mustafa Shah, Syeda Refat Sultana, Hafiz Mohkum Hammad, Muhammad Ishaq Asif Rehmani, Muhammad Zaffar Hashmi, Muhammad Habib Ur Rahman, Veysel Turan, Shah Fahad, Shah Suad, Aziz Khan, Shahzad Ali
Sunflower (Helianthus annuus L.) is the leading non-conventional oilseed crop in Pakistan. Nitrogen fertilizer can affect plant growth and productivity by changing canopy size which has an effect on the radiation use efficiency (RUE) of the crop. The response of sunflower hybrids in terms of phenology, fraction of intercepted radiation (F i), and RUE to nitrogenous rates (0, 60, 120, 180, and 240 kg ha(-1)) was studied in three field experiments conducted in three various environments: Multan (arid), Faisalabad (semi-arid), and Gujranwala (sub-humid) during spring seasons 2008 and 2009...
November 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29096367/electrochemical-immunosensors-for-the-detection-of-survival-motor-neuron-smn-protein-using-different-carbon-nanomaterials-modified-electrodes
#15
Shimaa Eissa, Nawal Alshehri, Anas M Abdel Rahman, Majed Dasouki, Khalid M Abu Salah, Mohammed Zourob
Spinal muscular atrophy is an untreatable potentially fatal hereditary disorder caused by loss-of-function mutations in the survival motor neuron (SMN) 1 gene which encodes the SMN protein. Currently, definitive diagnosis relies on the demonstration of biallelic pathogenic variants in SMN1 gene. Therefore, there is an urgent unmet need to accurately quantify SMN protein levels for screening and therapeutic monitoring of symptomatic newborn and SMA patients, respectively. Here, we developed a voltammetric immunosensor for the sensitive detection of SMN protein based on covalently functionalized carbon nanofiber-modified screen printed electrodes...
October 10, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29095880/circumscribed-interests-in-adolescents-with-autism-spectrum-disorder-a-look-beyond-trains-planes-and-clocks
#16
Ivy Y K Cho, Kristina Jelinkova, Manuela Schuetze, Sarah A Vinette, Sarah Rahman, Adam McCrimmon, Deborah Dewey, Signe Bray
Adolescence is a unique developmental period, characterized by physical and emotional growth and significant maturation of cognitive and social skills. For individuals with Autism Spectrum Disorder (ASD), it is also a vulnerable period as cognitive and social skills can deteriorate. Circumscribed interests (CIs), idiosyncratic areas of intense interest and focus, are a core symptom of ASD that may be associated with social development. Yet, relatively little is known about the expression of CIs in adolescents with ASD...
2017: PloS One
https://www.readbyqxmd.com/read/29091950/generation-of-g-protein-coupled-receptor-antibodies-differentially-sensitive-to-conformational-states
#17
Andrea S Heimann, Achla Gupta, Ivone Gomes, Rahman Rayees, Avner Schlessinger, Emer S Ferro, Ellen M Unterwald, Lakshmi A Devi
The N-terminal region of G protein-coupled receptors can be efficiently targeted for the generation of receptor-selective antibodies. These antibodies are useful for the biochemical characterization of the receptors. In this study, we developed a set of criteria to select the optimal epitope and applied them to generate antibodies to the N-terminal region of 34 different G protein-coupled receptors. The antibody characterization revealed that a subset of antibodies exhibited increased recognition of the receptor following agonist treatment and this increase could be blocked by treatment with the receptor antagonist...
2017: PloS One
https://www.readbyqxmd.com/read/29091850/effects-of-different-light-source-and-media-on-growth-and-production-of-phycobiliprotein-from-freshwater-cyanobacteria
#18
Helena Khatoon, Lai Kok Leong, Norazira Abdu Rahman, Sohel Mian, Hasina Begum, Sanjoy Banerjee, Azizah Endut
The aim of this study was to determine the effect of different light sources and media (wastewater and BBM) on the growth of Pseudanabaena mucicola and its phycobiliprotein production. Results showed that P. mucicola grown in white light using wastewater as medium attributed higher biomass (0.55 g L(-1)) and when extracted with water, also showed significantly higher (P < .05) production (237.01 mg g(-1)) and purity (1.14) of phycobiliprotein. This study validated that phycobiliprotein extracted from P...
October 14, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29079570/thoracic-epidural-anesthesia-can-be-effective-for-the-short-term-management-of-ventricular-tachycardia-storm
#19
Duc H Do, Jason Bradfield, Olujimi A Ajijola, Marmar Vaseghi, John Le, Siamak Rahman, Aman Mahajan, Akihiko Nogami, Noel G Boyle, Kalyanam Shivkumar
BACKGROUND: Novel therapies aimed at modulating the autonomic nervous system, including thoracic epidural anesthesia (TEA), have been shown in small case series to be beneficial in treating medically refractory ventricular tachycardia (VT) storm. However, it is not clear when these options should be considered. We reviewed a multicenter experience with TEA in the management of VT storm to determine its optimal therapeutic use. METHODS AND RESULTS: Data for 11 patients in whom TEA was instituted for VT storm between July 2005 and March 2016 were reviewed to determine the clinical characteristics, outcomes, and role in management...
October 27, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29079028/modulating-effect-of-mgo-sio2-nanoparticles-on-immunological-and-histopathological-alterations-induced-by-aflatoxicosis-in-rats
#20
Sara S Essa, Eiman M El-Saied, Osama S El-Tawil, Manal B Mahmoud, Sahar S Abd El-Rahman
INTRODUCTION: AflatoxinB1 (AFB1) is well-known as a feed borne-hepatotoxic and immunosuppressive mycotoxin. This study was conducted to evaluate the efficacy of nanocomposite magnesium oxide and silicon oxide (MgO-SiO2) in reducing the toxic effects of AFB1on the immunity and histological alterations in liver, spleen and intestine of adult male rats. EXPERIMENTAL DESIGN: Animals were divided into a control (Gp1) and three experimental groups (Gps); Gp2 received feed contained 200 ppb AFB1, Gp3 received feed contained 200 ppb AFB1 and 0...
October 25, 2017: Toxicon: Official Journal of the International Society on Toxinology
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