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https://www.readbyqxmd.com/read/28811280/dan-nbl1-promotes-collective-neural-crest-migration-by-restraining-uncontrolled-invasion
#1
Rebecca McLennan, Caleb M Bailey, Linus J Schumacher, Jessica M Teddy, Jason A Morrison, Jennifer C Kasemeier-Kulesa, Lauren A Wolfe, Madeline M Gogol, Ruth E Baker, Philip K Maini, Paul M Kulesa
Neural crest cells are both highly migratory and significant to vertebrate organogenesis. However, the signals that regulate neural crest cell migration remain unclear. In this study, we test the function of differential screening-selected gene aberrant in neuroblastoma (DAN), a bone morphogenetic protein (BMP) antagonist we detected by analysis of the chick cranial mesoderm. Our analysis shows that, before neural crest cell exit from the hindbrain, DAN is expressed in the mesoderm, and then it becomes absent along cell migratory pathways...
August 15, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28808937/high-performance-biogas-upgrading-using-a-biotrickling-filter-and-hydrogenotrophic-methanogens
#2
Trisha L Dupnock, Marc A Deshusses
This research reports the development of a biotrickling filter (BTF) to upgrade biogas, which is achieved by adding H2 to reduce CO2. H2 and CO2 (80:20% vol.) were fed to a bench-scale BTF packed with polyurethane foam (PUF) and inoculated with hydrogenotrophic methanogens. Maximum CH4 production rates recorded were as high as 38 m(3)CH4 m(-3)reactor day(-1), which is 5-30 times faster than earlier reports with other kinds of bioreactors. The high rates were attributed to the efficient mass transfer and high density of methanogens in the BTF...
August 14, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28808669/factors-contributing-to-unexpected-retirement-and-unemployment-in-adults-over-50-years-old-in-ireland
#3
Alison Schinkel-Ivy, Irene Mosca, Avril Mansfield
Older adults are increasingly important to maintaining stable workforces. As such, factors contributing to early workforce exit must be identified. This study aimed to identify predictors of unexpected retirement and unemployment at older age, with respect to psychological constructs, resulting adverse behaviors, and health-related factors reflecting functional status. Data were extracted from The Irish Longitudinal Study on Ageing (TILDA) to predict unexpected retirement and unemployment in older adults in Ireland...
January 2017: Gerontology & Geriatric Medicine
https://www.readbyqxmd.com/read/28808006/impact-of-catch-shares-on-diversification-of-fishers-income-and-risk
#4
Daniel S Holland, Cameron Speir, Juan Agar, Scott Crosson, Geret DePiper, Stephen Kasperski, Andrew W Kitts, Larry Perruso
Many fishers diversify their income by participating in multiple fisheries, which has been shown to significantly reduce year-to-year variation in income. The ability of fishers to diversify has become increasingly constrained in the last few decades, and catch share programs could further reduce diversification as a result of consolidation. This could increase income variation and thus financial risk. However, catch shares can also offer fishers opportunities to enter or increase participation in catch share fisheries by purchasing or leasing quota...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28805985/willingness-to-pay-for-antiretroviral-drugs-among-hiv-and-aids-clients-in-south-east-nigeria
#5
Chinyere Mbachu, Chijioke Okoli, Obinna Onwujekwe, Fabian Enabulele
BACKGROUND: The current trend of withdrawal of donor support for HIV/AIDS treatment in Nigeria may require that the cost of antiretroviral drugs be borne in part by infected people and their families. OBJECTIVE: This study was conducted to determine the economic value for free antiretroviral drugs (ARVs) expressed by clients receiving treatment for HIV/AIDS in a tertiary hospital. STUDY METHOD: The contingent valuation method was used to elicit the values attached to free ARVs from people living with HIV/AIDS that were receiving care in a public tertiary hospital in south-east Nigeria...
August 14, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
https://www.readbyqxmd.com/read/28805883/a-novel-objective-chute-score-interacts-with-monensin-to-affect-growth-of-receiving-cattle
#6
K A Bruno, E S Vanzant, A W Altman, M Kudupoje, K A Vanzant, K R McLeod
Growth in cattle may be related to animal temperament via alterations in intake or feed conversion. However, temperament is ill-defined, and different temperament measures may relate differently to production traits or interact with dietary factors in their effects. To examine relationships between diet, temperament, growth, and health, 160 crossbred steers (262 ± 22 kg) were used in a 56-d RCBD experiment with a 2 × 2 × 2 factorial treatment structure with 5 pens/treatment. Steers were pen fed a corn silage-based diet with or without monensin (41...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28803007/associations-between-biosecurity-practices-and-bovine-digital-dermatitis-in-danish-dairy-herds
#7
Victor H S Oliveira, Jan T Sørensen, Peter T Thomsen
The relationship between biosecurity and digital dermatitis (DD) was evaluated in 8,269 cows from a convenience sample of 39 freestall dairy herds. The hypothesis was that poor implementation of biosecurity was associated with higher within-herd prevalence of DD. All lactating cows were scored as negative or positive for DD at the hind legs during milking in the milking parlor. Information about biosecurity was obtained through questionnaires addressed to farmers, on-farm observations, and information from the Danish Cattle Database (www...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28802824/highly-accurate-prediction-of-protein-self-interactions-by-incorporating-the-average-block-and-pssm-information-into-the-general-pseaac
#8
Jing-Xuan Zhai, Tian-Jie Cao, Ji-Yong An, Yong-Tao Bian
It is a challenging task for fundamental research whether proteins can interact with their partners. Protein self-interaction (SIP) is a special case of PPIs, which plays a key role in the regulation of cellular functions. Due to the limitations of experimental self-interaction identification, it is very important to develop an effective biological tool for predicting SIPs based on protein sequences. In the study, we developed a novel computational method called RVM-AB that combines the Relevance Vector Machine (RVM) model and Average Blocks (AB) for detecting SIPs from protein sequences...
August 9, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28802462/driver-performance-and-attention-allocation-in-use-of-logo-signs-on-freeway-exit-ramps
#9
Maryam Zahabi, Patricia Machado, Mei Ying Lau, Yulin Deng, Carl Pankok, Joseph Hummer, William Rasdorf, David B Kaber
The objective of this research was to quantify the effects of driver age, ramp signage configuration, including number of panels, logo format and sign familiarity, on driver performance and attention allocation when exiting freeways. Sixty drivers participated in a simulator study and analysis of variance models were used to assess response effects of the controlled manipulations. Results revealed elderly drivers to demonstrate worse performance and conservative control strategies as compared to middle-aged and young drivers...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28802434/evaluation-of-postural-sway-and-impact-forces-during-ingress-and-egress-of-scissor-lifts-at-elevations
#10
Christopher S Pan, Sharon S Chiou, Tsui-Ying Kau, Bryan M Wimer, Xiaopeng Ning, Paul Keane
Workers are at risk when entering (ingress) or exiting (egress) elevated scissor lifts. In this study, we recorded ground impact forces and postural sway from 22 construction workers while they performed ingress and egress between a scissor lift and an adjacent work surface with varying conditions: lift opening designs, horizontal and vertical gaps, and sloped work surfaces. We observed higher peak ground shear forces when using a bar-and-chain opening, with larger horizontal gap, with the lift surface more than 0...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28801708/characterizing-particulate-matter-exfiltration-estimates-for-alternative-cookstoves-in-a-village-like-household-in-rural-nepal
#11
Sutyajeet I Soneja, James M Tielsch, Subarna K Khatry, Benjamin Zaitchik, Frank C Curriero, Patrick N Breysse
Alternative stoves are an intervention option to reduce household air pollution. The amount of air pollution exiting homes when alternative stoves are utilized is not known. In this paper, particulate matter exfiltration estimates are presented for four types of alternative stoves within a village-like home, which was built to reflect the use of local materials and common size, in rural Nepal. Four alternative stoves with chimneys were examined, which included an alternative mud brick stove, original Envirofit G3355 model, manufacture altered Envirofit G3355, and locally altered Envirofit G3355...
August 11, 2017: Environmental Management
https://www.readbyqxmd.com/read/28801302/improving-patient-centered-care-for-young-people-in-general-practice-with-a-codesigned-screening-app-mixed-methods-study
#12
Marianne Julie Webb, Greg Wadley, Lena Amanda Sanci
BACKGROUND: Despite experiencing a high prevalence and co-occurrence of mental health disorders and health-compromising behaviors, young people tend not to seek professional help for these concerns. However, they do regularly attend primary care, making primary care providers ideally situated to identify and discuss mental health and lifestyle issues as part of young people's routine health care. OBJECTIVE: The aim was to investigate whether using a codesigned health and lifestyle-screening app, Check Up GP, in general practice influenced young people's assessment of the quality of their care (measures of patient-centered care and youth friendliness), and their disclosure of sensitive issues...
August 11, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28801218/urology-residents-experience-and-attitude-towards-surgical-simulation-presenting-our-four-year-experience-with-a-multi-institutional-multi-modality-simulation-model
#13
Alexander Chow, B Sherer, E Yura, S Kielb, E Kocjancic, S Eggener, T Turk, S Park, S Psutka, M Abern, K Latchamsetty, C Coogan
OBJECTIVE: To evaluate the Urological resident's attitude and experience with surgical simulation in residency education using a multi-institutional, multi-modality model. MATERIALS AND METHODS: Residents from six area urology training programs rotated through simulation stations in four consecutive sessions from 2014 to 2017. Workshops included GreenLight photovaporization of the prostate(PVP), ureteroscopic stone extraction, laparoscopic peg transfer, 3-dimensional laparoscopy rope pass, transobturator sling placement, intravesical injection, high definition video system trainer (VITOM), vasectomy, and Urolift...
August 8, 2017: Urology
https://www.readbyqxmd.com/read/28799433/cell-cycle-transcription-control-dream-muvb-and-rb-e2f-complexes
#14
Martin Fischer, Gerd A Müller
The precise timing of cell cycle gene expression is critical for the control of cell proliferation; de-regulation of this timing promotes the formation of cancer and leads to defects during differentiation and development. Entry into and progression through S phase requires expression of genes coding for proteins that function in DNA replication. Expression of a distinct set of genes is essential to pass through mitosis and cytokinesis. Expression of these groups of cell cycle-dependent genes is regulated by the RB pocket protein family, the E2F transcription factor family, and MuvB complexes together with B-MYB and FOXM1...
August 11, 2017: Critical Reviews in Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28798498/non-parametric-regression-in-clustered-multistate-current-status-data-with-informative-cluster-size
#15
Ling Lan, Dipankar Bandyopadhyay, Somnath Datta
Datasets examining periodontal disease records current (disease) status information of tooth-sites, whose stochastic behavior can be attributed to a multistate system with state occupation determined at a single inspection time. In addition, the tooth-sites remain clustered within a subject, and the number of available tooth-sites may be representative of the true PD status of that subject, leading to an 'informative cluster size' scenario. To provide insulation against incorrect model assumptions, we propose a nonparametric regression framework to estimate state occupation probabilities at a given time and state exit/entry distributions, utilizing weighted monotonic regression and smoothing techniques...
January 2017: Statistica Neerlandica
https://www.readbyqxmd.com/read/28797617/differences-in-waiting-list-prioritization-preferences-of-occupational-therapists-elderly-people-and-persons-with-disabilities-a-discrete-choice-experiment
#16
Marie-Hélène Raymond, Louise Demers, Debbie E Feldman
OBJECTIVE: To compare the preferences of occupational therapists, elderly people and adults with disabilities regarding prioritization criteria for occupational therapy waiting lists in home care. DESIGN: Discrete choice experiment survey. Respondents completed eight choice tasks where they were asked to choose which of two referral scenarios should be prioritized for services. Scenarios varied in terms of four attributes reflecting competing issues that come into play in waiting list prioritization: the person's ability to shower, ability to enter and exit the home, history of falls and time already spent on the waiting list...
August 7, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28797270/implementing-the-teen-marijuana-check-up-in-schools-a-study-protocol
#17
Bryan Hartzler, Aaron R Lyon, Denise D Walker, Lauren Matthews, Kevin M King, Kathryn E McCollister
BACKGROUND: Substance misuse is now encountered in settings beyond addiction specialty care, with schools a point-of-contact for student access to behavioral health services. Marijuana is a leading impetus for adolescent treatment admissions despite declining risk perception, for which the Teen Marijuana Check-Up (TMCU)-a tailored adaptation of motivational enhancement therapy-offers an efficacious service option. To bridge the knowledge gap concerning effective and affordable technical assistance strategies for implementing empirically supported services, the described trial will test such a strategy to facilitate school-based TMCU implementation...
August 10, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/28797022/evaluation-of-the-isoniazid-preventive-therapy-care-cascade-among-hiv-positive-female-sex-workers-in-mombasa-kenya
#18
Sylvia M LaCourse, Ruth W Deya, Susan M Graham, Linnet N Masese, Walter Jaoko, Kischorchandra N Mandaliya, Julie Overbaugh, R Scott McClelland
BACKGROUND: Kenyan female sex workers (FSWs) have a high HIV prevalence, increasing their tuberculosis (TB) risk. Despite recommendations that HIV-positive individuals be offered isoniazid preventive therapy (IPT), uptake has been limited. METHODS: In this longitudinal cohort of HIV-positive FSWs, we retrospectively characterized the IPT care cascade between March 2000 and January 2010, including reasons for cascade loss or appropriate exit. Cascade success required completion of 6 months of IPT...
September 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28796446/numerical-analysis-of-a-dielectrophoresis-field-flow-fractionation-device-for-the-separation-of-multiple-cell-types
#19
Amir Shamloo, Ali Kamali
In this study, a dielectrophoresis field-flow fractionation device was analyzed using a numerical simulation method and the behaviors of a set of different cells were investigated. By reducing the alternating current frequency of the electrodes from the value used in the original setup configuration and increasing the number of exit channels, total discrimination in cell trajectories and subsequent separation of four cell types were achieved. Cells were differentiated based on their size and dielectric response which are represented in their real part of Clausius-Mossotti factor at different frequencies...
August 10, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28795380/peritoneal-dialysis-associated-catheter-infection-caused-by-mycobacterium-abscessus-in-an-elderly-patient-who-was-successfully-treated-with-catheter-removal
#20
Arata Hibi, Takahisa Kasugai, Keisuke Kamiya, Keisuke Kamiya, Chiharu Ito, Satoru Kominato, Ken Mizuguchi, Toshiyuki Miura, Katsushi Koyama
An 89-year-old Japanese man on peritoneal dialysis (PD) was suspected of having a PD-associated catheter infection. He visited the hospital because of the discharge of pus from the exit site of his catheter. Gram staining of the pus showed Gram-positive bacilli, but these were acid-fast bacilli. The rapidly growing nontuberculous mycobacteria, Mycobacterium abscessus, was isolated. PD catheter removal and debridement were immediately performed. The patient received combination antibiotic therapy. His clinical course was good, but he required hemodialysis due to the discontinuation of PD...
August 9, 2017: CEN Case Reports
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