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https://www.readbyqxmd.com/read/28817666/assessing-the-sustainable-development-and-intensification-potential-of-beef-cattle-production-in-sumbawa-indonesia-using-a-system-dynamics-approach
#1
Dahlanuddin, Benjamin Henderson, Kanar Dizyee, Hermansyah, Andrew Ash
The intensification of beef cattle production in dryland areas of East Indonesia has the potential to substantially raise the incomes of smallholder farmers that dominate the sector. In this study we assess the potential for intensifying beef production on Sumbawa Island, by introducing a household feedlot production system (2-20 animals) based on the Leucaena leucocephala (leucanea) tree legume as an improved source of feed. We used a system dynamics approach to model the entire value chain, accounting for herd dynamics, demand dynamics and seasonality...
2017: PloS One
https://www.readbyqxmd.com/read/28817185/setting-the-stage-for-universal-financial-distress-screening-in-routine-cancer-care
#2
Nandita Khera, Jimmie C Holland, Joan M Griffin
Financial burden from cancer treatment is increasingly being recognized as a threat to optimal access, quality, and outcomes of cancer care for patients. Although research in the area is moving at a fast pace, multiple questions remain unanswered, such as how to practically integrate the assessment and management of financial burden into routine health care delivery for patients with cancer. Although psychological distress screening for patients undergoing cancer treatment now is commonplace, the authors raise the provocative idea of universal screening for financial distress to identify and assist vulnerable groups of patients...
August 17, 2017: Cancer
https://www.readbyqxmd.com/read/28816177/electrical-stimulation-of-gut-motility-guided-by-an-in-silico-model
#3
Bradley Brigham Barth, Craig S Henriquez, Warren M Grill, Xiling Shen
OBJECTIVE: Neuromodulation of the central and peripheral nervous systems is becoming increasingly important for treating a diverse set of diseases-ranging from Parkinson's Disease and epilepsy to chronic pain. However, neuromodulation of the gastrointestinal (GI) tract has achieved relatively limited success in treating functional GI disorders, which affect a significant population, because the effects of stimulation on the enteric nervous system (ENS) and gut motility are not well understood...
August 17, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28816086/inducible-knockout-of-mouse-zfhx3-emphasizes-its-key-role-in-setting-the-pace-and-amplitude-of-the-adult-circadian-clock
#4
Ashleigh G Wilcox, Lucie Vizor, Michael J Parsons, Gareth Banks, Patrick M Nolan
The transcription factor zinc finger homeobox 3 (ZFHX3) plays a key role in coupling intracellular transcriptional-translational oscillations with intercellular synchrony in mouse suprachiasmatic nucleus (SCN). However, like many key players in central nervous system function, ZFHX3 serves an important role in neurulation and neuronal terminal differentiation while retaining discrete additional functions in the adult SCN. Recently, using a dominant missense mutation in mouse Zfhx3, we established that this gene can modify circadian period and sleep in adult animals...
August 1, 2017: Journal of Biological Rhythms
https://www.readbyqxmd.com/read/28815588/the-tooth-the-whole-tooth-and-nothing-but-the-tooth-tooth-shape-and-ontogenetic-shift-dynamics-in-the-white-shark-carcharodon-carcharias
#5
G C A French, M Stürup, S Rizzuto, J H van Wyk, D Edwards, R W Dolan, S P Wintner, A V Towner, W O H Hughes
Results from this study of the white shark Carcharodon carcharias include measurements obtained using a novel photographic method that reveal significant differences between the sexes in the relationship between tooth cuspidity and shark total length, and a novel ontogenetic change in male tooth shape. Males exhibit broader upper first teeth and increased distal inclination of upper third teeth with increasing length, while females do not present a consistent morphological change. Substantial individual variation, with implications for pace of life syndrome, was present in males and tooth polymorphism was suggested in females...
August 17, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28814710/left-univentricular-pacing-by-rate-adaptive-atrioventricular-delay-in-treatment-of-chronic-heart-failure
#6
Lulu Zhao, Ling Zhao, Lijin Pu, Baotong Hua, Yu Wang, Shumin Li, Qing Li, Tao Guo
BACKGROUND Cardiac resynchronization therapy (CRT) is efficacious in the treatment of chronic heart failure (CHF); however, because it is non-physiological, some patients are unresponsive. The present study used rate-adaptive atrioventricular delay (RAAVD) to track the physiological atrioventricular delay and investigated the effects of left univentricular pacing on CRT. MATERIAL AND METHODS Patients with CHF fulfilling the indication of CRT Class I were categorized into a left univentricular pacing by RAAVD group and a standard biventricular pacing group...
August 17, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28813982/validation-of-a-constrained-time-movement-task-for-use-in-rehabilitation-outcome-measures
#7
Daniel H Blustein, Jonathon W Sensinger
Current motor assessment tools can provide numerical indicators of performance but do not provide actionable information to target further improvement in rehabilitation interventions. Psychophysics-based outcome measures show promise to provide more useful information in the laboratory environment but have been limited in clinical implementation. Here we present a constrained-time task to assess paced and non-rhythmic movements. The task's output metrics include trial-by-trial adaptation rate and the just noticeable difference of a perturbation...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813978/evaluation-of-3d-printed-anatomically-scalable-transfemoral-prosthetic-knee
#8
Tyagi Ramakrishnan, Millicent Schlafly, Kyle B Reed
This case study compares a transfemoral amputee's gait while using the existing Ossur Total Knee 2000 and our novel 3D printed anatomically scalable transfemoral prosthetic knee. The anatomically scalable transfemoral prosthetic knee is 3D printed out of a carbon-fiber and nylon composite that has a gear-mesh coupling with a hard-stop weight-actuated locking mechanism aided by a cross-linked four-bar spring mechanism. This design can be scaled using anatomical dimensions of a human femur and tibia to have a unique fit for each user...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813837/walking-speed-intention-model-using-soleus-electromyogram-signal-of-nondisabled-and-post-stroke-hemiparetic-patients
#9
Sang Hun Chung, Taejin Choi, Yoha Hwang, Hyungmin Kim, Seung-Jong Kim, Min Ho Chun, Jong Min Lee
It is well known that the activation of plantar flexors have a strong influence on the walking speed. If the gait speed can be predicted using this relationship, a post-stroke hemiparetic patient could control a gait rehabilitation robot according to his or her gait intention, and the robotic gait rehabilitation effect could be further improved. To find out this relationship, 9 nondisabled subjects and 4 chronic post-stroke hemiparetic subjects performed overground level walking at a comfortable pace, a slow pace, a fast pace, and an increasing pace with electromyogram sensors attached on plantar flexors...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813554/association-between-purpose-in-life-and-objective-measures-of-physical-function-in-older-adults
#10
Eric S Kim, Ichiro Kawachi, Ying Chen, Laura D Kubzansky
Importance: Higher purpose in life is hypothesized to reduce the likelihood of developing weak grip strength and slow walking speed because purpose has been linked with a range of positive health behaviors and biological processes that are potentially protective against declining physical function. However, the association between purpose in life and objective physical function has not been examined. Objective: To assess whether higher purpose in life among adequately functioning older adults is associated with lower risk of developing weak grip strength and slow walking speed over time...
August 16, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28812943/tear-osmolarity-is-sensitive-to-exercise-induced-fluid-loss-but-is-not-associated-with-common-hydration-measures-in-a-field-setting
#11
Justin J Holland, Michelle Ray, Christopher Irwin, Tina L Skinner, Michael Leveritt, Ben Desbrow
This investigation (i) examined changes in tear osmolarity in response to fluid loss that occurs with exercise in a field setting, and (ii) compared tear osmolarity with common field and laboratory hydration measures.  Sixty-three participants [age 27.8 ± 8.4 years, body mass 72.15 ± 10.61 kg] completed a self-paced 10 km run outside on a predetermined course. Body mass, tear fluid, venous blood and urine samples were collected immediately before and after exercise.  Significant (p < 0.001) reductions in body mass (1...
August 16, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28812711/arrhythmias-safety-backups-to-keep-the-pace
#12
Irene Fernández-Ruiz
No abstract text is available yet for this article.
August 16, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28812707/the-rise-and-fall-of-malaria-under-land-use-change-in-frontier-regions
#13
Andres Baeza, Mauricio Santos-Vega, Andrew P Dobson, Mercedes Pascual
Land-use change is the main force behind ecological and social change in many countries around the globe; it is primarily driven by resource needs and external economic incentives. Concomitantly, transformations of the land are the main drivers for the emergence and re-emergence of malaria. An understanding of malaria population dynamics in transforming landscapes is lacking, despite its relevance for developmental and public health policies. We develop a mathematical model that couples malaria epidemiology with the socio-economic and demographic processes that occur in a landscape undergoing land-use change...
March 20, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812589/connecting-earth-observation-to-high-throughput-biodiversity-data
#14
Alex Bush, Rahel Sollmann, Andreas Wilting, Kristine Bohmann, Beth Cole, Heiko Balzter, Christopher Martius, András Zlinszky, Sébastien Calvignac-Spencer, Christina A Cobbold, Terence P Dawson, Brent C Emerson, Simon Ferrier, M Thomas P Gilbert, Martin Herold, Laurence Jones, Fabian H Leendertz, Louise Matthews, James D A Millington, John R Olson, Otso Ovaskainen, Dave Raffaelli, Richard Reeve, Mark-Oliver Rödel, Torrey W Rodgers, Stewart Snape, Ingrid Visseren-Hamakers, Alfried P Vogler, Piran C L White, Martin J Wooster, Douglas W Yu
Understandably, given the fast pace of biodiversity loss, there is much interest in using Earth observation technology to track biodiversity, ecosystem functions and ecosystem services. However, because most biodiversity is invisible to Earth observation, indicators based on Earth observation could be misleading and reduce the effectiveness of nature conservation and even unintentionally decrease conservation effort. We describe an approach that combines automated recording devices, high-throughput DNA sequencing and modern ecological modelling to extract much more of the information available in Earth observation data...
June 22, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28811749/acute-cocoa-flavanols-intake-has-minimal-effects-on-exercise-induced-oxidative-stress-and-nitric-oxide-production-in-healthy-cyclists-a-randomized-controlled-trial
#15
Lieselot Decroix, Cajsa Tonoli, Danusa Dias Soares, Amandine Descat, Marie-José Drittij-Reijnders, Antje R Weseler, Aalt Bast, Wilhelm Stahl, Elsa Heyman, Romain Meeusen
BACKGROUND: Cocoa flavanols (CF) can stimulate vasodilation by improved nitric oxide (NO) synthesis and have antioxidant and anti-inflammatory capacities. This study aimed to examine whether acute CF intake can affect exercise-induced changes in antioxidant capacity, oxidative stress, inflammation and NO production, as well as exercise performance and recovery in well-trained cyclists. METHODS: Twelve well-trained male cyclists (mean ± SD age, VO2max: 30 ± 3 years, 63...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28811736/mentored-training-to-increase-diversity-among-faculty-in-the-biomedical-sciences-the-nhlbi-summer-institute-programs-to-increase-diversity-sipid-and-the-programs-to-increase-diversity-among-individuals-engaged-in-health-related-research-pride
#16
Treva K Rice, Donna B Jeffe, Josephine E A Boyington, Jared B Jobe, Victor G Dávila-Román, Juan E Gonzalez, Lisa de Las Fuentes, Levi H C Makala, Rita Sarkar, Gbenga G Ogedegbe, Anne L Taylor, Susan Czajkowski, Dabeeru C Rao, Betty S Pace, Girardin Jean-Louis, Mohamed Boutjdir
OBJECTIVE: To report baseline characteristics of junior-level faculty participants in the Summer Institute Programs to Increase Diversity (SIPID) and the Programs to Increase Diversity among individuals engaged in Health-Related Research (PRIDE), which aim to facilitate participants' career development as independent investigators in heart, lung, blood, and sleep research. DESIGN AND SETTING: Junior faculty from groups underrepresented in the biomedical-research workforce attended two, 2-3 week, annual summer research-education programs at one of six sites...
2017: Ethnicity & Disease
https://www.readbyqxmd.com/read/28811555/identification-of-novel-micrornas-in-the-sheep-heart-and-their-regulation-in-heart-failure
#17
Lee Lee Wong, Miriam T Rademaker, Eng Leng Saw, Kar Sheng Lew, Leigh J Ellmers, Christopher J Charles, Arthur Mark Richards, Peipei Wang
Study of microRNA (miRNAs) using sheep models is limited due to lack of miRNA information. We therefore investigated oar-miRNAs and their regulation in an ovine model of heart failure (HF). Left ventricular (LV) tissue was collected from normal (Cont), HF (LV pacing @ ~220bpm for 13-days) and HF-recovery sheep (HF-R, 26-days after pacing cessation). MiRNA expression was profiled using next-generation sequencing (NGS) and miRNA array, and validated by stem-loop qPCR. Detected sequences were mapped against the ovine genome (Oar v4...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811460/prevention-of-atrial-fibrillation-by-using-sarcoplasmic-reticulum-calcium-atpase-pump-overexpression-in-a-rabbit-model-of-rapid-atrial-pacing
#18
Hong Li Wang, Xian Hui Zhou, Zhi Qiang Li, Ping Fan, Qi Na Zhou, Yao Dong Li, Yue Mei Hou, Bao Peng Tang
BACKGROUND Recent research suggests that abnormal Ca2+ handling plays a role in the occurrence and maintenance of atrial fibrillation (AF). Therefore, Ca2+ release and ingestion depend on properties of the ryanodine receptor (RyR) and sarcoplasmic reticulum Ca2+ATPase2a (SERCA2a). This study aimed to detect whether SERCA2a gene overexpression has a preventive effect on atrial fibrillation caused by rapid pacing right atrium. MATERIAL AND METHODS Forty-eight New Zealand white rabbits were randomly divided into a control group, AF group, AAV9/GFP group, and AAV9/SERCA2a group...
August 16, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28811391/cardiac-implantable-electronic-device-lead-extraction-using-the-lead-locking-device-system-keeping-it-simple-safe-and-inexpensive-with-mechanical-tools-and-local-anesthesia
#19
Antonis S Manolis, Georgios Georgiopoulos, Sofia Metaxa, Spyridon Koulouris, Dimitris Tsiachris
OBJECTIVE: We have previously reported our successful approach for percutaneous cardiac implantable electronic device (CIED) lead extraction using inexpensive tools, which we have continued over the years. Herein we report the results of the systematic use of a unique stylet, the lead-locking device (LLD), which securely locks the entire lead lumen, aided with non-powered telescoping sheaths in 54 patients to extract 98 CIED leads. METHODS: This prospective observational clinical study included 38 men and 16 women aged 68...
August 11, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28809850/function-related-replacement-of-bacterial-siderophore-pathways
#20
Hilke Bruns, Max Crüsemann, Anne-Catrin Letzel, Mohammad Alanjary, James O McInerney, Paul R Jensen, Stefan Schulz, Bradley S Moore, Nadine Ziemert
Bacterial genomes are rife with orphan biosynthetic gene clusters (BGCs) associated with secondary metabolism of unrealized natural product molecules. Often up to a tenth of the genome is predicted to code for the biosynthesis of diverse metabolites with mostly unknown structures and functions. This phenomenal diversity of BGCs coupled with their high rates of horizontal transfer raise questions about whether they are really active and beneficial, whether they are neutral and confer no advantage, or whether they are carried in genomes because they are parasitic or addictive...
August 15, 2017: ISME Journal
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