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https://www.readbyqxmd.com/read/29677702/is-the-pelvis-sexually-dimorphic-in-turtles
#1
Gerardo A Cordero
Variation in the pelvis is intrinsically linked to life history evolution. This is perhaps best exemplified by sexually dimorphic pelvic variation in bipedal primates. Yet, whether this trend is applicable to other taxa is unclear. Using turtle anatomy as a model, I tested the hypothesis that the pelvis is also sexually dimorphic in egg-laying tetrapods. I sampled a natural turtle population with female-biased sexual size dimorphism (i.e. larger females). I show that the area of the egg canal (pelvic aperture) is greater in females...
April 20, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29677680/transcriptomic-identification-of-salt-related-genes-and-de-novo-assembly-in-common-buckwheat-f-esculentum
#2
Qi-Huan Lu, Ya-Qi Wang, Jin-Nan Song, Hong-Bing Yang
Common buckwheat (F. esculentum), annually herbaceous crop, is prevalent in people's daily life with the increasing development of economics. Compared with wheat, it is highly praised with high content of rutin and flavonoid. Common buckwheat is recognized as healthy food with good taste, and the product price of which such as noodles, flour, bread and so on are higher than wheat, and the seeds of which are bigger than that of tartary buckwheat, so if common buckwheat are planted more widely, people will spend less money on this healthy and delicious food...
April 4, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29677677/comparison-of-methods-for-h-10-calculation-from-measured-labr-3-ce-detector-spectra
#3
A Vargas, N Cornejo, A Camp
The Universitat Politecnica de Catalunya (UPC) and the Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) have evaluated methods based on stripping, conversion coefficients and Maximum Likelihood Estimation using Expectation Maximization (ML-EM) in calculating the H*(10) rates from photon pulse-height spectra acquired with a spectrometric LaBr3 (Ce)(1.5″ × 1.5″) detector. There is a good agreement between results of the different H*(10) rate calculation methods using the spectra measured at the UPC secondary standard calibration laboratory in Barcelona...
March 31, 2018: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29677675/nitrogen-use-efficiency-and-crop-production-patterns-of-regional-variation-in-the-united-states-1987-2012
#4
Dennis P Swaney, Robert W Howarth, Bongghi Hong
National-level summaries of crop production and nutrient use efficiency, important for international comparisons, only partially elucidate agricultural dynamics within a country. Agricultural production and associated environmental impacts in large countries vary significantly because of regional differences in crops, climate, resource use and production practices. Here, we review patterns of regional crop production, nitrogen use efficiency (NUE), and major inputs of nitrogen to US crops over 1987-2012, based on the Farm Resource Regions developed by the Economic Research Service (USDA-ERS)...
April 17, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29677587/effects-of-chronic-exposure-to-cadmium-and-temperature-alone-or-combined-on-the-threespine-stickleback-gasterosteus-aculeatus-interest-of-digestive-enzymes-as-biomarkers
#5
Younes Mohamed Ismail Hani, Cyril Turies, Olivier Palluel, Laurence Delahaut, Véronique Gaillet, Anne Bado-Nilles, Jean-Marc Porcher, Alain Geffard, Odile Dedourge-Geffard
The development of predictive, sensitive and reliable biomarkers is of crucial importance for aquatic biomonitoring to assess the effects of chemical substances on aquatic organisms, especially when it comes to combined effects with other stressors (e.g. temperature). The first purpose of the present study was to evaluate the single and combined effects of 90 days of exposure to an environmental cadmium concentration (0.5 μg L-1 ) and two water temperatures (16 and 21 °C) on different parameters. These parameters are involved in (i) the antioxidant system (superoxide dismutase activity -SOD- and total glutathione levels -GSH-), (ii) the energy metabolism, i...
April 12, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29677580/effects-of-a-skill-demonstration-video-delivered-by-smartphone-on-facilitating-nursing-students-skill-competencies-and-self-confidence-a-randomized-controlled-trial-study
#6
Yeu-Hui Chuang, Fu-Chih Lai, Chia-Chi Chang, Hsu-Tien Wan
BACKGROUND: The correct and appropriate performance of nursing skills by students can ensure patient safety and care quality. However, developing appropriate teaching and learning strategies to enhance nursing students' nursing skills and knowledge are challenging tasks for nursing faculty members. Nowadays, smartphones are popular mobile devices that are used on campuses by students and could be considered a potential tool to deliver learning materials to nursing students. OBJECTIVES: This study aimed to examine the effects of a skill demonstration video delivered by smartphone on facilitating nursing students' nursing skill competency and confidence...
April 7, 2018: Nurse Education Today
https://www.readbyqxmd.com/read/29677565/comparison-of-three-modes-of-aerobic-exercise-combined-with-resistance-training-on-the-pain-and-function-of-patients-with-knee-osteoarthritis-a-randomized-controlled-trial
#7
Sanaz Kabiri, Farzin Halabchi, Hooman Angoorani, Saeed Yekaninejad
OBJECTIVES: To investigate the effects of three modes of aerobic exercise (lower limbs with and without weight bearing and upper limb) for knee osteoarthritis. DESIGN: Randomized controlled trial. SETTING: Sports medicine clinic. PARTICIPANTS: Seventy-eight patients with knee osteoarthritis were divided into 3 groups of resistance training combined with one of three programs of treadmill, cycle ergometer, or arm ergometer aerobic training...
April 7, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29677500/raman-spectral-analysis-for-rapid-screening-of-dengue-infection
#8
T Mahmood, H Nawaz, A Ditta, M I Majeed, M A Hanif, N Rashid, H N Bhatti, H F Nargis, M Saleem, F Bonnier, H J Byrne
Infection with the dengue virus is currently clinically detected according to different biomarkers in human blood plasma, commonly measured by enzyme linked immunosorbent assays, including non-structural proteins (Ns1), immunoglobulin M (IgM) and immunoglobulin G (IgG). However, there is little or no mutual correlation between the biomarkers, as demonstrated in this study by a comparison of their levels in samples from 17 patients. As an alternative, the label free, rapid screening technique, Raman spectroscopy has been used for the characterisation/diagnosis of healthy and dengue infected human blood plasma samples...
April 11, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29677481/mutation-analysis-of-short-tandem-repeats-in-a-population-sample-from-upper-silesia-southern-poland
#9
Kornelia Droździok, Jadwiga Kabiesz, Marcin Tomsia, Rafał Skowronek, Krzysztof Rębała
In paternity testing, DNA polymorphism analysis not only settles explicitly disputed paternity issue but also provides information on mutation frequencies in STR loci. In this study, insertion or deletion of one repetitive unit was observed in 38 of 32,391 meiotic transfers analysed in 953 paternity testing cases. Parentage samples from Upper Silesia (southern Poland) were examined in 2008-2014 with the use of three commercially available amplification kits: AmpFlSTR Identifiler (Applied Biosystems), PowerPlex 16 HS (Promega) and PowerPlex ESX 17 (Promega)...
April 1, 2018: Legal Medicine
https://www.readbyqxmd.com/read/29677365/age-related-changes-to-human-tear-composition
#10
Alessandra Micera, Antonio Di Zazzo, Graziana Esposito, Rosa Longo, William Foulsham, Roberto Sacco, Roberto Sgrulletta, Stefano Bonini
Purpose: We characterize age-associated alterations in the expression of inflammatory mediators and tissue remodeling factors in human tears. Methods: A total of 75 consecutive volunteers (32 male/44 female; 19-93 years) underwent clinical assessment of ocular surface status, ocular surface disease index (OSDI) grading and tear sampling. The volunteers were categorized into three groups: young (18-40 years), middle-aged (41-60 years), and old (>60 years). Total protein profiles and chip-based protein array evaluations were conducted to investigate the expression of 60 potential candidates, including pro-/anti-inflammatory mediators and tissue remodeling factors...
April 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29677357/optical-coherence-tomography-minimum-intensity-as-an-objective-measure-for-the-detection-of-hydroxychloroquine-toxicity
#11
Ali M Allahdina, Paul F Stetson, Susan Vitale, Wai T Wong, Emily Y Chew, Fredrick L Ferris Iii, Paul A Sieving, Catherine Cukras
Purpose: As optical coherence tomography (OCT) minimum intensity (MI) analysis provides a quantitative assessment of changes in the outer nuclear layer (ONL), we evaluated the ability of OCT-MI analysis to detect hydroxychloroquine toxicity. Methods: Fifty-seven predominantly female participants (91.2% female; mean age, 55.7 ± 10.4 years; mean time on hydroxychloroquine, 15.0 ± 7.5 years) were enrolled in a case-control study and categorized into affected (i.e...
April 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29677318/strength-of-continuous-flash-suppression-is-optimal-when-target-and-masker-modulation-rates-are-matched
#12
Shui'Er Han, David Alais
Continuous flash suppression (CFS) is a popular technique whereby a dynamic sequence of Mondrian patterns is presented to one eye in order to suppress a static target presented to the other eye. Although the effectiveness of CFS is generally assumed to increase with the flicker rate of the Mondrian masker, a recent study has shown that suppression is optimal at very low masker rates for sustained targets, but higher rates may be necessary for transient targets. Here we vary the modulation rates of the masker and target using temporally filtered dynamic noise, which allowed us to examine the relationship between target and masker frequency and its effect on suppression strength...
March 1, 2018: Journal of Vision
https://www.readbyqxmd.com/read/29677281/biomechanical-effects-on-cervical-spinal-cord-and-nerve-root-following-laminoplasty-for-ossification-of-the-posterior-longitudinal-ligament-in-the-cervical-spine-a-comparison-between-open-door-and-double-door-laminoplasty-using-finite-element-analysis
#13
Batbayar Khuyagbaatar, Kyungsoo Kim, Tserenchimed Purevsuren, Sang-Hun Lee, Yoon Hyuk Kim
Many clinical case series have reported the predisposing factors for C5 palsy and have presented comparisons of the two types of laminoplasty. However, there have been no biomechanical studies focusing on cervical spinal cord and nerve root following laminoplasty. The purpose of this study is to investigate biomechanical changes in the spinal cord and nerve roots following the two most common types of laminoplasty, open-door and double-door laminoplasty, for cervical ossification of the posterior longitudinal ligament (OPLL)...
July 1, 2018: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29677280/assessment-of-the-effectiveness-of-combat-eyewear-protection-against-blast-overpressure
#14
A Sundaramurthy, M Skotak, E Alay, G Unnikrishnan, H Mao, X Duan, S T Williams, T H Harding, N Chandra, J Reifman
It is unclear whether combat eyewear used by U. S. Service members is protective against blast overpressures (BOPs) caused by explosive devices. Here, we investigated the mechanisms by which BOP bypasses eyewear and increases eye surface pressure. We performed experiments and developed three-dimensional (3D) finite element (FE) models of a head form (HF) equipped with an advanced combat helmet (ACH) and with no eyewear, spectacles, or goggles in a shock tube at three BOPs and five head orientations relative to the blast wave...
July 1, 2018: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29677228/decontamination-of-customized-laser-microtextured-titanium-abutments-a-comparative-in-vitro-study-of-different-cleaning-procedures
#15
Davide Farronato, Davide Fumagalli, Farah Asa'ad, Giulio Rasperini
The aim of this study was to evaluate different cleaning procedures for customized laser-microtextured titanium abutments. A total of 20 customized laser-microtextured abutments were randomized into four groups: no cleaning (control group), ultrasonic treatments + autoclave cycle (group 1), ultrasonic treatments + argon plasma (group 2), and only argon plasma (group 3). Surface contaminants were assessed through scanning electron microscopy and energy-dispersive x-ray spectroscopy microanalysis. In the control group, 99...
April 20, 2018: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29677217/optimisation-of-three-dimensional-lower-jaw-resection-margin-planning-using-a-novel-black-bone-magnetic-resonance-imaging-protocol
#16
Astrid M Hoving, Joep Kraeima, Rutger H Schepers, Hildebrand Dijkstra, Jan Hendrik Potze, Bart Dorgelo, Max J H Witjes
BACKGROUND: MRI is the optimal method for sensitive detection of tumour tissue and pre-operative staging in oral cancer. When jawbone resections are necessary, the current standard of care for oral tumour surgery in our hospital is 3D virtual planning from CT data. 3D printed jawbone cutting guides are designed from the CT data. The tumour margins are difficult to visualise on CT, whereas they are clearly visible on MRI scans. The aim of this study was to change the conventional CT-based workflow by developing a method for 3D MRI-based lower jaw models...
2018: PloS One
https://www.readbyqxmd.com/read/29677197/a-novel-statistical-method-for-assessing-effective-adherence-to-medication-and-calculating-optimal-drug-dosages
#17
Garrett Greene, Richard W Costello, Breda Cushen, Imran Sulaiman, Elaine Mac Hale, Ronan M Conroy, Frank Doyle
OBJECTIVE: We derive a novel model-based metric for effective adherence to medication, and validate it using data from the INhaler Compliance Assessment device (INCATM). This technique employs dose timing data to estimate the threshold drug concentration needed to maintain optimal health. METHODS: The parameters of the model are optimised against patient outcome data using maximum likelihood methods. The model is fitted and validated by secondary analysis of two independent datasets from two remote-monitoring studies of adherence, conducted through clinical research centres of 5 Irish hospitals...
2018: PloS One
https://www.readbyqxmd.com/read/29677069/evolution-of-deceased-organ-donation-activity-vs-efficiency-over-a-15-year-period-an-international-comparison
#18
Julius Weiss, Andreas Elmer, Beatriz Mahíllo, Beatriz Domínguez-Gil, Danica Avsec, Alessandro Nanni Costa, Bernadette J J M Haase-Kromwijk, Karim Laouabdia, Franz F Immer
BACKGROUND: The donation rate (DR) per million population is not ideal for an efficiency comparison of national deceased organ donation programs. The DR does not account for variabilities in the potential for deceased donation which mainly depends on fatalities from causes leading to brain death. In this study, the donation activity was put into relation to the mortality from selected causes. Based on that metric, this study assesses the efficiency of different donation programs. METHODS: This is a retrospective analysis of 2001-2015 deceased organ donation and mortality registry data...
April 19, 2018: Transplantation
https://www.readbyqxmd.com/read/29677066/agreement-analysis-what-he-said-she-said-versus-you-said
#19
Thomas R Vetter, Patrick Schober
Correlation and agreement are 2 concepts that are widely applied in the medical literature and clinical practice to assess for the presence and strength of an association. However, because correlation and agreement are conceptually distinct, they require the use of different statistics. Agreement is a concept that is closely related to but fundamentally different from and often confused with correlation. The idea of agreement refers to the notion of reproducibility of clinical evaluations or biomedical measurements...
April 17, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29677057/newborn-resuscitation-skills-in-health-care-providers-at-a-zambian-tertiary-center-and-comparison-to-world-health-organization-standards
#20
Sara C Mistry, Richard Lin, Hazel Mumphansha, Laura C Kettley, Janaki A Pearson, Sonia Akrimi, David J Mayne, Wonder Hangoma, M Dylan Bould
BACKGROUND: Birth asphyxia is a leading cause of early neonatal death. In 2013, 32% of neonatal deaths in Zambia were attributable to birth asphyxia and trauma. Basic, timely interventions are key to improving outcomes. However, data from the World Health Organization suggest that resuscitation is often not initiated, or is conducted suboptimally. Currently, there are little data on the quality of newborn resuscitation in the context of a tertiary center in a lower-middle income country...
April 17, 2018: Anesthesia and Analgesia
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