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https://www.readbyqxmd.com/read/28891268/pediatric-respiratory-tract-diseases-chronological-trends-and-perspectives
#1
Houda Ben Ayed, Sourour Yaïch, Maïssa Ben Jmaa, Jihene Jedidi, Mariem Ben Hmida, Maroua Trigui, Mondher Kassis, Raouf Karray, Yosra Mejdoub, Habib Feki, Jamel Damak
BACKGROUND: We aimed to draw the epidemiological profile of respiratory tract diseases (RTD) among children in the region of Sfax and to evaluate their current trends over a 13-year period. METHODS: We conducted a retrospective study including all children hospitalized with RTD aged under 14 years. We collected data from the regional morbidity register of the university hospital of Sfax from 2003 to 2015. RESULTS: We included 10797 cases with RTD among 49880 pediatric hospitalizations (21...
September 10, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28836089/risk-factors-for-sodium-valproate-induced-renal-tubular-dysfunction
#2
Satoko Koga, Takahisa Kimata, Sohsaku Yamanouchi, Shoji Tsuji, Ken Yoshimura, Atsushi Araki, Kazunari Kaneko
OBJECTIVE: To explore the risk factors for the development of sodium valproate (VPA)-induced renal tubular dysfunction for early diagnosis and treatment. STUDY DESIGN: The subjects were selected from patients who were diagnosed with epilepsy and administered VPA. Blood and spot urine samples were collected and measured the concentration of VPA, the level of serum phosphorus, serum uric acid, serum free carnitine, serum cystatin-c, and urine β2-microglobulin (BMG)...
August 23, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28827499/intrarater-reliability-of-muscle-strength-and-hamstring-to-quadriceps-strength-imbalance-ratios-during-concentric-isometric-and-eccentric-maximal-voluntary-contractions-using-the-isoforce-dynamometer
#3
Anett Mau-Moeller, Martin Gube, Sabine Felser, Frank Feldhege, Matthias Weippert, Florian Husmann, Thomas Tischer, Rainer Bader, Sven Bruhn, Martin Behrens
OBJECTIVE: To determine intrasession and intersession reliability of strength measurements and hamstrings to quadriceps strength imbalance ratios (H/Q ratios) using the new isoforce dynamometer. DESIGN: Repeated measures. SETTING: Exercise science laboratory. PARTICIPANTS: Thirty healthy subjects (15 females, 15 males, 27.8 years). MAIN OUTCOME MEASURES: Coefficient of variation (CV) and intraclass correlation coefficients (ICC) were calculated for (1) strength parameters, that is peak torque, mean work, and mean power for concentric and eccentric maximal voluntary contractions; isometric maximal voluntary torque (IMVT); rate of torque development (RTD), and (2) H/Q ratios, that is conventional concentric, eccentric, and isometric H/Q ratios (Hcon/Qcon at 60 deg/s, 120 deg/s, and 180 deg/s, Hecc/Qecc at -60 deg/s and Hiso/Qiso) and functional eccentric antagonist to concentric agonist H/Q ratios (Hecc/Qcon and Hcon/Qecc)...
August 17, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28763003/short-term-effects-of-a-ready-to-drink-pre-workout-beverage-on-exercise-performance-and-recovery
#4
Patrick B Collins, Conrad P Earnest, Ryan L Dalton, Ryan J Sowinski, Tyler J Grubic, Christopher J Favot, Adriana M Coletta, Christopher Rasmussen, Mike Greenwood, Richard B Kreider
In a double-blind, randomized and crossover manner, 25 resistance-trained participants ingested a placebo (PLA) beverage containing 12 g of dextrose and a beverage (RTD) containing caffeine (200 mg), β-alanine (2.1 g), arginine nitrate (1.3 g), niacin (65 mg), folic acid (325 mcg), and Vitamin B12 (45 mcg) for 7-days, separated by a 7-10-day. On day 1 and 6, participants donated a fasting blood sample and completed a side-effects questionnaire (SEQ), hemodynamic challenge test, 1-RM and muscular endurance tests (3 × 10 repetitions at 70% of 1-RM with the last set to failure on the bench press (BP) and leg press (LP)) followed by ingesting the assigned beverage...
August 1, 2017: Nutrients
https://www.readbyqxmd.com/read/28720871/localization-of-damage-in-the-human-leg-muscles-induced-by-downhill-running
#5
Sumiaki Maeo, Yukino Ando, Hiroaki Kanehisa, Yasuo Kawakami
We investigated localization of damage within the knee extensors (KEs) and plantar flexors (PFs) induced by downhill running (DR) by using transverse relaxation time (T2)-weighted magnetic resonance imaging (MRI). Fourteen young adults performed 45-min DR (-15% slope) at their maximal tolerable velocity. At pre- and 24, 48, and 72 h post-exercise, T2-MRI was scanned and T2 values for each muscle composing KEs and PFs at proximal, middle, and distal sites were calculated. Maximal isometric torque and rate of torque development (RTD: 0-30, 0-50, 0-100, 0-200 ms) were also measured...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28713456/post-activation-potentiation-of-the-plantarflexors-implications-of-knee-angle-variations
#6
Paulo Gago, Anton Arndt, Maria M Ekblom
Flexing the knee to isolate the single joint soleus from the biarticular gastrocnemius is a strategy for investigating individual plantarflexor's post activation potentiation (PAP). We investigated the implications of testing plantarflexor PAP at different knee angles and provided indirect quantification of the contribution of gastrocnemius potentiation to the overall plantarflexor enhancements post conditioning. Plantarflexor supramaximal twitches were measured in ten male power athletes before and after a maximal isometric plantarflexion (MVIC) at both flexed and extended knee angles...
June 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28704309/effect-of-three-different-muscle-action-training-protocols-on-knee-strength-ratios-and-performance
#7
Cassio V Ruas, Lee E Brown, Camila D Lima, Pablo B Costa, Ronei S Pinto
Hamstring to quadriceps (H:Q) ratios are often used to assess strength imbalances. The aims of this study were to compare three different muscle action training protocols on H:Q strength balance and functional performance. Forty untrained males (age: 22.87 ± 2.28 y, mass: 70.66 ± 11.049 kg, ht: 174.29 ± 6.90 cm) performed 6 weeks of training on an isokinetic dynamometer. They were randomly assigned to one of 4 groups; concentric quadriceps and concentric hamstring (CON/CON), eccentric quadriceps and eccentric hamstring (ECC/ECC), concentric quadriceps and eccentric hamstring (CON/ECC), or no training (CNTRL)...
July 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28650242/evaluation-of-a-telemetric-gastrointestinal-pill-for-continuous-monitoring-of-gastrointestinal-temperature-in-horses-at-rest-and-during-exercise
#8
Elisabeth-Lidwien J M M Verdegaal, Catherine Delesalle, Charles G B Caraguel, Louise E Folwell, Todd J McWhorter, Gordon S Howarth, Samantha H Franklin
OBJECTIVE To evaluate use of a telemetric gastrointestinal (GI) pill to continuously monitor GI temperature in horses at rest and during exercise and to compare time profiles of GI temperature and rectal temperature. ANIMALS 8 Standardbred horses. PROCEDURES Accuracy and precision of the GI pill and a rectal probe were determined in vitro by comparing temperature measurements with values obtained by a certified resistance temperature detector (RTD) in water baths at various temperatures (37°, 39°, and 41°C)...
July 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28636840/influence-of-sex-on-performance-fatigability-of-the-plantar-flexors-following-repeated-maximal-dynamic-shortening-contractions
#9
Amelia C Lanning, Geoffrey A Power, Anita D Christie, Brian H Dalton
The purpose was to determine sex differences in fatigability during maximal, unconstrained velocity, shortening plantar flexions. The role of time-dependent measures (i.e., rate of torque development, rate of velocity development, and rate of neuromuscular activation) in such sex-related differences was also examined. By task termination, females exhibited smaller reductions in power and similar changes in rate of neuromuscular activation than males, indicating females were less fatigable than males.
June 21, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28624475/oxidoreductases-on-their-way-to-industrial-biotransformations
#10
REVIEW
Angel T Martínez, Francisco J Ruiz-Dueñas, Susana Camarero, Ana Serrano, Dolores Linde, Henrik Lund, Jesper Vind, Morten Tovborg, Owik M Herold-Majumdar, Martin Hofrichter, Christiane Liers, René Ullrich, Katrin Scheibner, Giovanni Sannia, Alessandra Piscitelli, Cinzia Pezzella, Mehmet E Sener, Sibel Kılıç, Willem J H van Berkel, Victor Guallar, Maria Fátima Lucas, Ralf Zuhse, Roland Ludwig, Frank Hollmann, Elena Fernández-Fueyo, Eric Record, Craig B Faulds, Marta Tortajada, Ib Winckelmann, Jo-Anne Rasmussen, Mirjana Gelo-Pujic, Ana Gutiérrez, José C Del Río, Jorge Rencoret, Miguel Alcalde
Fungi produce heme-containing peroxidases and peroxygenases, flavin-containing oxidases and dehydrogenases, and different copper-containing oxidoreductases involved in the biodegradation of lignin and other recalcitrant compounds. Heme peroxidases comprise the classical ligninolytic peroxidases and the new dye-decolorizing peroxidases, while heme peroxygenases belong to a still largely unexplored superfamily of heme-thiolate proteins. Nevertheless, basidiomycete unspecific peroxygenases have the highest biotechnological interest due to their ability to catalyze a variety of regio- and stereo-selective monooxygenation reactions with H2O2 as the source of oxygen and final electron acceptor...
November 1, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28611812/pitfalls-in-root-trait-calculations-how-ignoring-diameter-heterogeneity-can-lead-to-overestimation-of-functional-traits
#11
Laura Rose
Specific root length (SRL) and root tissue density (RTD) are ecologically functional traits which are calculated from root length or volume and root dry weight. Both can be converted into each other using the root diameter assuming roots are cylindrical. The calculation of volume from length or length from volume is, however, problematic because samples of roots do usually not have a constant diameter. Ignorance of the diameter heterogeneity leads to an overestimation of length and an underestimation of volume if standard formulas are used...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28595235/a-warm-up-routine-that-incorporates-a-plyometric-protocol-potentiates-the-force-generating-capacity-of-the-quadriceps-muscles
#12
Mariska Johnson, J Pierre Baudin, Alejandro L Ley, David F Collins
This study was designed to investigate whether a warm-up routine that incorporates drop jumps, induces post-activation potentiation (PAP), and if so, assess the magnitude and time course of the induced PAP. Participants performed a standard warm-up that incorporated either drop jumps (plyometric protocol) or a low-paced walk (control protocol). PAP was assessed by changes in electrically-evoked isometric muscle twitches recorded throughout both protocols. The plyometric protocol increased peak twitch torque (PTT), rate of force development (RTD) and impulse significantly (by 23%, 39% and 46%, respectively) with no change in the amplitude of simultaneously-evoked M-waves, indicating that the augmented torque was due to PAP...
June 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28583329/rtd-modeling-of-a-continuous-dry-granulation-process-for-process-control-and-materials-diversion
#13
Julia Kruisz, Jakob Rehrl, Stephan Sacher, Isabella Aigner, Martin Horn, Johannes G Khinast
Disturbance propagation during continuous manufacturing processes can be predicted by evaluating the residence time distribution (RTD) of the specific unit operations. In this work, a dry granulation process was modelled and four scenarios of feeding events were simulated. We performed characterization of the feeders and developed RTD models for the blender and the roller compactor based on impulse-response measurements via color tracers. Out-of-specification material was defined based on the active pharmaceutical ingredient (API) concentration...
August 7, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28574991/exploring-the-potential-of-open-big-data-from-ticketing-websites-to-characterize-travel-patterns-within-the-chinese-high-speed-rail-system
#14
Sheng Wei, Jinfu Yuan, Yanning Qiu, Xiali Luan, Shanrui Han, Wen Zhou, Chi Xu
Big data have contributed to deepen our understanding in regards to many human systems, particularly human mobility patterns and the structure and functioning of transportation systems. Resonating the recent call for 'open big data,' big data from various sources on a range of scales have become increasingly accessible to the public. However, open big data relevant to travelers within public transit tools remain scarce, hindering any further in-depth study on human mobility patterns. Here, we explore ticketing-website derived data that are publically available but have been largely neglected...
2017: PloS One
https://www.readbyqxmd.com/read/28559270/efficacy-of-rhesus-theta-defensin-1-in-experimental-models-of-pseudomonas-aeruginosa-lung-infection-and-inflammation
#15
Timothy J Bensman, Jordanna G Jayne, Meiling Sun, Elza Kimura, Joshua Meinert, Joshua C Wang, Justin B Schaal, Dat Tran, Adupa P Rao, Omid Akbari, Michael E Selsted, Paul M Beringer
Chronic airway infection and inflammation contribute to the progressive loss of lung function and shortened survival of patients with cystic fibrosis (CF). Rhesus theta defensin-1 (RTD-1) is a macrocyclic host defense peptide with antimicrobial and immunomodulatory activities. Combined with favorable preclinical safety and peptide stability data, RTD-1 warrants investigation to determine its therapeutic potential for treatment of CF lung disease. We sought to evaluate the therapeutic potential of RTD-1 for CF airway infection and inflammation using in vitro, ex vivo, and in vivo models...
August 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28551215/effect-of-different-drying-techniques-on-bioactive-components-fatty-acid-composition-and-volatile-profile-of-robusta-coffee-beans
#16
Wenjiang Dong, Rongsuo Hu, Zhong Chu, Jianping Zhao, Lehe Tan
This study investigated the effect of different drying techniques, namely, room-temperature drying (RTD), solar drying (SD), heat-pump drying (HPD), hot-air drying (HAD), and freeze drying (FD), on bioactive components, fatty acid composition, and the volatile compound profile of robusta coffee beans. The data showed that FD was an effective method to preserve fat, organic acids, and monounsaturated fatty acids. In contrast, HAD was ideal for retaining polyunsaturated fatty acids and amino acids. Sixty-two volatile compounds were identified in the differently dried coffee beans, representing 90% of the volatile compounds...
November 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28498112/effect-of-baffles-on-the-hydraulic-performance-of-sediment-retention-ponds
#17
Sher Khan, Bruce W Melville, Mudasser Muneer Khan, Muhammad Shoaib, Asaad Shamseldin
An investigation of the effect of baffles on retention pond performance using a physical model of an existing sediment retention pond is presented. Analysis of residence time (RTD curves) was used to compare the hydraulic performance of different arrangements of baffles in the pond. Five different arrangements for the design of baffles were studied. The results show that placing a single baffle to deflect the influent to a sediment retention pond does not improve pond performance; rather, it stimulates short-circuiting...
May 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28388231/quadriceps-function-and-hamstrings-co-activation-after-anterior-cruciate-ligament-reconstruction
#18
Derek N Pamukoff, Brian G Pietrosimone, Eric D Ryan, Dustin R Lee, J Troy Blackburn
CONTEXT:   Individuals with anterior cruciate ligament reconstruction (ACLR) have quadriceps dysfunction that contributes to physical disability and posttraumatic knee osteoarthritis. Quadriceps function in the ACLR limb is commonly evaluated relative to the contralateral uninjured limb. Bilateral quadriceps dysfunction is common in individuals with ACLR, potentially biasing these evaluations. OBJECTIVE:   To compare quadriceps function between individuals with ACLR and uninjured control participants...
May 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28380800/nonlinear-optical-detection-of-terahertz-wave-radiation-from-resonant-tunneling-diodes
#19
Yuma Takida, Kouji Nawata, Safumi Suzuki, Masahiro Asada, Hiroaki Minamide
The sensitive detection of terahertz (THz)-wave radiation from compact sources at room temperature is crucial for real-world THz-wave applications. Here, we demonstrate the nonlinear optical detection of THz-wave radiation from continuous-wave (CW) resonant tunneling diodes (RTDs) at 0.58, 0.78, and 1.14 THz. The up-conversion process in a MgO:LiNbO<sub>3</sub> crystal under the noncollinear phase-matching condition offers efficient wavelength conversion from a THz wave to a near-infrared (NIR) wave that is detected using a commercial NIR photodetector...
March 6, 2017: Optics Express
https://www.readbyqxmd.com/read/28371724/flow-investigation-in-an-industrial-scale-soaker-using-radiotracer-technique
#20
H J Pant, Sunil Goswami, V K Sharma, S K Maity, M O Garg
Flow dynamics of heavy petroleum residue in an industrial-scale soaker operating in a petroleum refinery was investigated. Residence time distributions (RTDs) of the residue were measured using radiotracer technique. Bromine-82 as dibromobiphenyl was used as radiotracer for tracing the petroleum residue. The measured RTDs were treated and mean residence times (MRTs) were determined. The measured RTD data was simulated using a combined model i.e. axial dispersion model in parallel with tanks-in-series with stagnant volume and exchange...
March 18, 2017: Applied Radiation and Isotopes
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