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https://www.readbyqxmd.com/read/28535140/relation-between-body-mass-index-and-body-image-in-spanish-and-mexican-adolescents
#1
Jesús Roberto García Sandoval, José Carlos Caracuel, Armando Cocca, Michaela Cocca, Oswaldo Ceballos Gurrola
This article aims to study the relation between Body Mass Index (BMI) and body image in adolescents from two different social environments in Spain and Mexico, and to compare the construction of an appropriate body scheme in youth from these two countries. The majority of participants were found to be in the normal weight category of BMI. No significant differences were found in BMI or body image comparing Mexican and Spanish adolescents. Regardless of the country of origin, youth belonging to the weight deficit category of BMI overestimated their body shape, whereas those pertaining to overweight and obesity categories underestimated it...
May 23, 2017: Behavioral Medicine
https://www.readbyqxmd.com/read/28527802/abrupt-weaning-reduces-postweaning-growth-and-is-associated-with-alterations-in-gastrointestinal-markers-of-development-in-dairy-calves-fed-an-elevated-plane-of-nutrition-during-the-preweaning-period
#2
M A Steele, J H Doelman, L N Leal, F Soberon, M Carson, J A Metcalf
The benefits of feeding elevated quantities of milk to dairy calves have been well established. However, there is a reluctance to adopt this method of feeding in commercial dairy production because of concerns around growth, health, and ruminal development during weaning. The objective of this study was to characterize the effect of an abrupt (0 d step-down) or gradual (12 d step-down) feeding scheme when calves are fed an elevated plane of nutrition (offered 1.35 kg of milk replacer/d). For this experiment, a total of 54 calves were randomly assigned to an abrupt or a gradual weaning protocol before weaning at 48 d of life...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28525908/mri-based-radiotherapy-planning-method-using-rigid-image-registration-technique-combined-with-outer-body-correction-scheme-a%C3%A2-feasibility-study
#3
Ki Mun Kang, Hoon Sik Choi, Bae Kwon Jeong, Jin Ho Song, In-Bong Ha, Yun Hee Lee, Chul Hang Kim, Hojin Jeong
An alternative pseudo CT generation method for magnetic resonance image (MRI)-based radiotherapy planning was investigated in the work. A pseudo CT was initially generated using the rigid image registration between the planning MRI and previously acquired diagnostic CT scan. The pseudo CT generated was then refined to have the same morphology with that of the referenced planning image scan by applying the outer body correction scheme. This method was applied to some sample of brain image data and the feasibility of the method was assessed by comparing dosimetry results with those from the current gold standard CT-based calculations...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28524675/experimental-determination-of-dynamical-lee-yang-zeros
#4
Kay Brandner, Ville F Maisi, Jukka P Pekola, Juan P Garrahan, Christian Flindt
Statistical physics provides the concepts and methods to explain the phase behavior of interacting many-body systems. Investigations of Lee-Yang zeros-complex singularities of the free energy in systems of finite size-have led to a unified understanding of equilibrium phase transitions. The ideas of Lee and Yang, however, are not restricted to equilibrium phenomena. Recently, Lee-Yang zeros have been used to characterize nonequilibrium processes such as dynamical phase transitions in quantum systems after a quench or dynamic order-disorder transitions in glasses...
May 5, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28514063/where-are-you-heading-flexible-integration-of-retinal-and-extra-retinal-cues-during-self-motion-perception
#5
Shenbing Kuang, Jinfu Shi, Yang Wang, Tao Zhang
As we move forward in the environment, we experience a radial expansion of the retinal image, wherein the center corresponds to the instantaneous direction of self-motion. Humans can precisely perceive their heading direction even when the retinal motion is distorted by gaze shifts due to eye/body rotations. Previous studies have suggested that both retinal and extra-retinal strategies can compensate for the retinal image distortion. However, the relative contributions of each strategy remain unclear. To address this issue, we devised a two-alternative-headings discrimination task, in which participants had either real or simulated pursuit eye movements...
May 17, 2017: PsyCh Journal
https://www.readbyqxmd.com/read/28509794/an-allometric-model-of-remifentanil-pharmacokinetics-and-pharmacodynamics
#6
Douglas J Eleveld, Johannes H Proost, Hugo Vereecke, Anthony R Absalom, Erik Olofsen, Jaap Vuyk, Michel M R F Struys
BACKGROUND: Pharmacokinetic and pharmacodynamic models are used to predict and explore drug infusion schemes and their resulting concentration profiles for clinical application. Our aim was to develop a pharmacokinetic-pharmacodynamic model for remifentanil that is accurate in patients with a wide range of age and weight. METHODS: Remifentanil pharmacokinetic data were obtained from three previously published studies of adults and children, one of which also contained pharmacodynamic data from adults...
June 2017: Anesthesiology
https://www.readbyqxmd.com/read/28504114/a-shortened-tamoxifen-induction-scheme-to-induce-creer-recombinase-without-side-effects-on-the-male-mouse-skeleton
#7
Ferran Jardí, Michaël R Laurent, Vanessa Dubois, Rougin Khalil, Ludo Deboel, Dieter Schollaert, Ludo Van Den Bosch, Brigitte Decallonne, Geert Carmeliet, Frank Claessens, Dirk Vanderschueren
The selective estrogen receptor modulator tamoxifen exerts estrogen agonistic or antagonistic actions on several tissues, including bone. The off-target effects of tamoxifen are one of the most widely recognized pitfalls of tamoxifen-inducible Cre recombinases (CreERs), potentially confounding the phenotypic findings. Still, the validation of tamoxifen induction schemes that minimize the side effects of the drug has not been addressed. Here, we compared the side effects on the skeleton and other androgen-responsive targets of a shortened tamoxifen regimen (2 doses of 190 mg/kg body weight by oral gavage) to a standard protocol (4 doses) and determined their efficiency in inducing CreER-mediated gene deletion...
May 11, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28495009/a-two-step-convolutional-neural-network-based-computer-aided-detection-scheme-for-automatically-segmenting-adipose-tissue-volume-depicting-on-ct-images
#8
Yunzhi Wang, Yuchen Qiu, Theresa Thai, Kathleen Moore, Hong Liu, Bin Zheng
Accurately assessment of adipose tissue volume inside a human body plays an important role in predicting disease or cancer risk, diagnosis and prognosis. In order to overcome limitation of using only one subjectively selected CT image slice to estimate size of fat areas, this study aims to develop and test a computer-aided detection (CAD) scheme based on deep learning technique to automatically segment subcutaneous fat areas (SFA) and visceral fat areas (VFA) depicting on volumetric CT images. A retrospectively collected CT image dataset was divided into two independent training and testing groups...
June 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28490983/institutional-experience-in-the-treatment-of-colorectal-liver-metastases-with-stereotactic-body-radiation-therapy
#9
Alejandra Méndez Romero, Fatma Keskin-Cambay, Rob M van Os, Joost J Nuyttens, Ben J M Heijmen, Jan N M IJzermans, Cornelis Verhoef
AIM: To investigate whether the impact of dose escalation in our patient population represented an improvement in local control without increasing treatment related toxicity. MATERIALS AND METHODS: A cohort of consecutive patients with colorectal liver metastases treated with stereotactic body radiation therapy (SBRT) between December 2002 and December 2013 were eligible for this study. Inclusion criteria were a Karnofsky performance status ≥80% and, according to the multidisciplinary tumor board, ineligibility for surgery or radiofrequency ablation...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28490978/radiobiology-of-stereotactic-body-radiation-therapy-sbrt
#10
REVIEW
Miquel Macià I Garau
Recent advances in the technology of radiotherapy have enabled the development of new therapeutic modalities that deliver radiation with very high accuracy, reduced margins and high dose conformation, allowing the reduction of healthy tissue irradiated and therefore minimizing the risk of toxicity. The next step was to increase the total tumor dose using conventional fractionation (which remains the best way to relatively radioprotect healthy tissues when large volumes are treated) or to use new fractionation schemes with greater biological effectiveness...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28489628/lengthening-of-newly-formed-humerus-after-autologous-fibula-graft-transplantation-following-intercalary-tumor-resection
#11
Hakan Pilge, Martin Ruppert, Bernd Bittersohl, Bettina Westhoff, Rüdiger Krauspe
Secondary limb lengthening after intercalary bone resection in pediatric patients is still challenging. After the resection, a free fibula autograft can be used to reconstruct the osseous gap. However, in particular in young pediatric patients, insufficient growth of the epiphyseal plate after transplantation may lead to a significant limb-length discrepancy (LLD). In this case, the autograft was used for limb lengthening. We report on the lengthening of a humerus regenerate after fibula autograft transplantation into a humeral defect in a pediatric/young adolescent patient...
May 5, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28484955/ranibizumab-in-the-treatment-of-diabetic-macular-edema-a-review-of-the-current-status-unmet-needs-and-emerging-challenges
#12
REVIEW
Nikolaos Dervenis, Athanasia Maria Mikropoulou, Paris Tranos, Panagiotis Dervenis
Diabetic retinopathy (more specifically diabetic macular edema, DME) is the most common cause of loss of vision in the working population in developed countries. Anti-vascular endothelial growth factor (anti-VEGF) agents considerably changed the treatment algorithms and improved prognosis of center-involving DME. Ranibizumab was the first approved anti-VEGF agent that revolutionized DME treatment. The vast increase in the number of patients undergoing intravitreal treatment and the role of anti-VEGF pharmacotherapy as the mainstay of DME treatment have triggered several challenges...
May 8, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28481248/fm-uwb-towards-a-robust-low-power-radio-for-body-area-networks
#13
Vladimir Kopta, John Farserotu, Christian Enz
The Frequency Modulated Ultra-Wideband (FM-UWB) is known as a low-power, low-complexity modulation scheme targeting low to moderate data rates in applications such as wireless body area networks. In this paper, a thorough review of all FM-UWB receivers and transmitters reported in literature is presented. The emphasis is on trends in power reduction that exhibit an improvement by a factor 20 over the past eight years, showing the high potential of FM-UWB. The main architectural and circuit techniques that have led to this improvement are highlighted...
May 6, 2017: Sensors
https://www.readbyqxmd.com/read/28475110/public-auditing-with-privacy-protection-in-a-multi-user-model-of-cloud-assisted-body-sensor-networks
#14
Song Li, Jie Cui, Hong Zhong, Lu Liu
Wireless Body Sensor Networks (WBSNs) are gaining importance in the era of the Internet of Things (IoT). The modern medical system is a particular area where the WBSN techniques are being increasingly adopted for various fundamental operations. Despite such increasing deployments of WBSNs, issues such as the infancy in the size, capabilities and limited data processing capacities of the sensor devices restrain their adoption in resource-demanding applications. Though providing computing and storage supplements from cloud servers can potentially enrich the capabilities of the WBSNs devices, data security is one of the prevailing issues that affects the reliability of cloud-assisted services...
May 5, 2017: Sensors
https://www.readbyqxmd.com/read/28467855/use-of-ice-nucleating-proteins-to-improve-the-performance-of-freeze-thaw-valves-in-microfluidic-devices
#15
Joseph C Gaiteri, W Hampton Henley, Nathan A Siegfried, Thomas H Linz, J Michael Ramsey
Currently, reliable valving on integrated microfluidic devices fabricated from rigid materials is confined to expensive and complex methods. Freeze-thaw valves (FTVs) can provide a low cost, low complexity valving mechanism, but reliable implementation of them has been greatly hindered by the lack of ice nucleation sites within the valve body's small volume. Work to date has required very low temperatures (on the order of -40 °C or colder) to induce freezing without nucleation sites, making FTVs impractical due to instrument engineering challenges...
May 11, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28464812/predictors-of-seeking-financial-compensation-following-motor-vehicle-trauma-inception-cohort-with-moderate-to-severe-musculoskeletal-injuries
#16
Darnel Murgatroyd, Ian A Harris, Jian Sheng Chen, Sam Adie, Rajat Mittal, Ian D Cameron
BACKGROUND: Compensation related factors have been repeatedly associated with poor recovery following orthopaedic trauma. There is limited research into the factors associated with seeking financial compensation. Further understanding of these factors could facilitate injury recovery by purposeful compensation scheme design. The aim of this study was to investigate the predictors of seeking financial compensation, namely making a claim and seeking legal representation, following motor vehicle related orthopaedic trauma...
May 2, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28459669/efficient-surgical-cutting-with-position-based-dynamics
#17
Iago Berndt, Rafael Torchelsen, Anderson Maciel
Simulations of cuts on deformable bodies have been an active research subject for more than two decades. However, previous works based on finite element methods and mass spring meshes cannot scale to complex surgical scenarios. This article presents a novel method that uses position-based dynamics (PBD) for mesh-free cutting simulation. The proposed solutions include a method to efficiently render force feedback while cutting, an efficient heat diffusion model to simulate electrocautery, and a novel adaptive skinning scheme based on oriented particles...
2017: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/28455349/a-notch-positive-feedback-in-the-intestinal-stem-cell-niche-is-essential-for-stem-cell-self-renewal
#18
Kai-Yuan Chen, Tara Srinivasan, Kuei-Ling Tung, Julio M Belmonte, Lihua Wang, Preetish Kadur Lakshminarasimha Murthy, Jiahn Choi, Nikolai Rakhilin, Sarah King, Anastasia Kristine Varanko, Mavee Witherspoon, Nozomi Nishimura, James A Glazier, Steven M Lipkin, Pengcheng Bu, Xiling Shen
The intestinal epithelium is the fastest regenerative tissue in the body, fueled by fast-cycling stem cells. The number and identity of these dividing and migrating stem cells are maintained by a mosaic pattern at the base of the crypt. How the underlying regulatory scheme manages this dynamic stem cell niche is not entirely clear. We stimulated intestinal organoids with Notch ligands and inhibitors and discovered that intestinal stem cells employ a positive feedback mechanism via direct Notch binding to the second intron of the Notch1 gene...
April 28, 2017: Molecular Systems Biology
https://www.readbyqxmd.com/read/28449050/cardioscape-mapping-the-cardiovascular-funding-landscape-in-europe
#19
Axel Radlach Pries, Anastasia Naoum, Helmut Habazettl, Mathias Dunkel, Robert Preissner, Caroline J Coats, Ana Tornada, Francesco Orso, Frans Van de Werf, David A Wood
Aims: The burden of cardiovascular disease is increasing worldwide, which has to be reflected by cardiovascular (CV) research in Europe. CardioScape, a FP7 funded project initiated by the European Society of Cardiology (ESC), identified where CV research is performed, how it is funded and by whom. It could be transformed into an on-line and up-to-date resource of great relevance for researchers, funding bodies and policymakers and could be a role model for mapping CV research funding in Europe and beyond...
April 25, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28447231/the-nutritional-interrelationship-between-the-growing-and-finishing-phases-in-crossbred-cattle-raised-in-a-tropical-system
#20
Ricardo Linhares Sampaio, Flávio Dutra de Resende, Ricardo Andrade Reis, Ivanna Moraes de Oliveira, Letícia Custódio, Rodolfo Maciel Fernandes, Raul Dirceu Pazdiora, Gustavo Rezende Siqueira
This study evaluated the nutritional interrelationship between the growing and finishing phases of crossbred cattle in determining their performance. One hundred and eight animals were used (8 months old, body weight [BW] 211 ± 20 kg). During the dry season, the animals received one of the following supplements: a mineral plus urea supplement (ad libitum, MSD), a protein supplement (1 g/kg BW per day, PR1), or a protein-energy supplement (5 g/kg BW per day, PE). During the rainy season, the animals received one of the following supplements: a mineral without urea supplement (ad libitum, MSR), a protein supplement (1 g/kg BW per day, PR2), or PE (5 g/kg BW per day)...
April 26, 2017: Tropical Animal Health and Production
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