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growth parameters

Piran R Kidambi, Dhanushkodi D Mariappan, Nicholas T Dee, Andrey Vyatskikh, Sui Zhang, Rohit Karnik, A John Hart
Scalable, cost-effective synthesis and integration of graphene is imperative to realize large-area applications such as nanoporous atomically thin membranes (NATMs). Here, we report a scalable route to the production of NATMs via high-speed, continuous synthesis of large-area graphene by roll-to-roll chemical vapor deposition (CVD), combined with casting of a hierarchically porous polymer support. To begin, we designed and built a two zone roll-to-roll graphene CVD reactor, which sequentially exposes the moving foil substrate to annealing and growth atmospheres, with a sharp, isothermal transition between the zones...
March 19, 2018: ACS Applied Materials & Interfaces
Emine Çamtosun, Zeynep Şıklar, Merih Berberoğlu
OBJECTIVES: Continuation of GH treatment in adolescents with severe childhood onset Idiopathic Growth Hormone Deficiency (IGHD) during the transition period, irrespective of achievement of final height is still debatable.We aimed to investigate the metabolic profile, BMD and body composition of the patients with isolated childhood onset GHD in whom GH treatments were terminated after they reached their final height, prospectively six months after the cessation of therapy. METHODS: Twelve patients, 6 of which with peak GH <5 ng/mL (Permanent GHD, Group 1), and 6 of which with peak GH >5 ng/mL (Transient GHD, Group 2) after insulin stimulation test were evaluated for anthropometric and laboratory parameters including fasting blood glucose (FBG), fasting insulin (FI), lipid profile, BMD, body composition measurements, and 24 hours ambulatory blood pressure monitoring before (baseline) and at six months after discontinuation of GH...
March 19, 2018: Journal of Clinical Research in Pediatric Endocrinology
Arieh Zaritsky, Avinoam Rabinovitch, Chenli Liu, Conrad L Woldringh
Cell size of bacteria M is related to 3 temporal parameters: chromosome replication time C , period from replication-termination to subsequent division D , and doubling time τ . Steady-state, bacillary cells grow exponentially by extending length L only, but their constant width W is larger at shorter τ 's or longer C 's, in proportion to the number of chromosome replication positions n (= C / τ ), at least in Escherichia coli and Salmonella typhimurium . Extending C by thymine limitation of fast-growing thyA mutants result in continuous increase of M , associated with rising W , up to a limit before branching...
December 2017: Synthetic and Systems Biotechnology
Rong-Quan He, Xia Yang, Liang Liang, Gang Chen, Jie Ma
The present study aimed to explore the potential clinical significance of microRNA (miR)-124-3p expression in the hepatocarcinogenesis and development of hepatocellular carcinoma (HCC), as well as the potential target genes of functional HCC pathways. Reverse transcription-quantitative polymerase chain reaction was performed to evaluate the expression of miR-124-3p in 101 HCC and adjacent non-cancerous tissue samples. Additionally, the association between miR-124-3p expression and clinical parameters was also analyzed...
April 2018: Oncology Letters
Dalia A Ahmed, Dalia F Slima
Many agricultural soils in Egypt irrigated with untreated wastewater. Herein, we investigated the effect of untreated industrial wastewater irrigation on the soil and fodder plant Corchorus olittorius (Jew mallow). It also aimed to assess its effect on the growth measurements as well as analyses of soils, irrigation waters, and plants for heavy metal and nutrient concentrations. Significant differences between irrigation waters and soil irrigated with fresh and wastewater were recognized. Wastewater irrigation leads to remarkable reduction in the growth parameters and reduced its vegetative biomass...
March 17, 2018: Environmental Science and Pollution Research International
Ravi Prakash Pal, Veena Mani, Deepika Tripathi, Chander Datt
The aim of the study was to assess the effect of inorganic vanadium (V) supplementation on antioxidant enzymes, immune status, and haemato-biochemical attributes of growing crossbred calves. Twenty-four male Karan Fries calves (Tharparkar × Holstein Friesian) (initial body mass 72.83 ± 2.5 kg; age 3-9 month) were randomly allocated to four groups: the control (received basal diet devoid of supplemental V), the 3 ppm (received basal diet with 3 mg/kg V), the 6 ppm (received basal diet with 6 mg/kg V) and the 9 ppm group (received basal diet with 9 mg/kg V)...
March 17, 2018: Biological Trace Element Research
Colleen M Witzenburg, Jeffrey W Holmes
The ability to predict long-term growth and remodeling of the heart in individual patients could have important clinical implications, but the time to customize and run current models makes them impractical for routine clinical use. Therefore, we adapted a published growth relation for use in a compartmental model of the left ventricle (LV). The model was coupled to a circuit model of the circulation to simulate hemodynamic overload in dogs. We automatically tuned control and acute model parameters based on experimentally reported hemodynamic data and fit growth parameters to changes in LV dimensions from two experimental overload studies (one pressure, one volume)...
March 17, 2018: Journal of Cardiovascular Translational Research
Mohammed Al Za'abi, Suhail Al Salam, Yousuf Al Suleimani, Priyadarsini Manoj, Abderrahim Nemmar, Badreldin H Ali
BACKGROUND/AIMS: The effect of treatment with gum acacia (GA), a prebiotic shown previously to ameliorate chronic kidney disease (CKD), in diabetic and non - diabetic rats with adenine - induced CKD has been investigated using several conventional and novel physiological, biochemical, and histopathological parameters. METHODS: Diabetes mellitus was induced in rats by a single injection of streptozotocin (STZ). Diabetic and non - diabetic rats were randomly divided into several groups, and given either normal food or food mixed with adenine (0...
March 13, 2018: Cellular Physiology and Biochemistry
M Migda, M S Migda, B Migda, E Wender-Ozegowska
Metabolic syndrome (MS) and obesity is an important risk factor for fetal complications like excessive fetal growth manifested by large for gestational age (LGA) and macrosomia, which is a consequence of metabolic disturbances present in the first trimester of pregnancy. The aim of this prospective observational study is to analyze the relationship between the first trimester biochemical and anthropometric parameters of fetuses with the incidence of their macrosomia and LGA so to early predict such complications in women with symptoms of MS...
December 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Yao Li, Zhiqiang Yue, Hua Yu, Xiaojian Liu, Li Tao, Zhijie Zhu, Fangtian Fan, Cunsi Shen, Aiyun Wang, Wenxing Chen, Yin Lu
PURPOSE: A computational model based on clinical data from pancreatic cancer patients has been successfully created and used for predicting tumor sizes in primary and metastasis sites and survival time from kinetics of tumor cells, such as growth rate, metastasis rate and mutation rate, etc. Whether this computational model could be fitted or necessary modification of some parameters for fitting in mice is unknown. Here, we developed a computational model in mice for spontaneous metastasis to simulate the process of tumor metastasis based on the mathematical frameworks...
March 14, 2018: Journal of Pharmacological and Toxicological Methods
Clement Aldebert, Bob W Kooi, David Nerini, Jean-Christophe Poggiale
Many current issues in ecology require predictions made by mathematical models, which are built on somewhat arbitrary choices. Their consequences are quantified by sensitivity analysis to quantify how changes in model parameters propagate into an uncertainty in model predictions. An extension called structural sensitivity analysis deals with changes in the mathematical description of complex processes like predation. Such processes are described at the population scale by a specific mathematical function taken among similar ones, a choice that can strongly drive model predictions...
March 14, 2018: Journal of Theoretical Biology
Xiaoqiang Gong, Linlin Cai, Suyan Li, Scott X Chang, Xiangyang Sun, Zhengfeng An
Vermicomposting is a promising method for reusing urban green waste. However, high lignin content in the green waste could hinder the development of earthworm and microorganisms and the vermicomposting process, resulting in a low-quality vermicompost product. The objective of this study was to evaluate the effect of bamboo biochar addition (at 0%, 3%, and 6% on a dry w/w basis) on the activity of Eisenia fetida and the obtained vermicompost. Biochar addition increased (P < 0.05) earthworm biomass, juvenile and cocoon numbers of Eisenia fetida, as well as the activities of dehydrogenase, cellulase, urease and alkaline phosphatase...
March 15, 2018: Ecotoxicology and Environmental Safety
Gosse Overal, Bas Teusink, Frank J Bruggeman, Josephus Hulshof, Robert Planqué
Yeast glycolysis has been the focus of research for decades, yet a number of dynamical aspects of yeast glycolysis remain poorly understood at present. If nutrients are scarce, yeast will provide its catabolic and energetic needs with other pathways, but the enzymes catalysing upper glycolytic fluxes are still expressed. We conjecture that this overexpression facilitates the rapid transition to glycolysis in case of a sudden increase in nutrient concentration. However, if starved yeast is presented with abundant glucose, it can enter into an imbalanced state where glycolytic intermediates keep accumulating, leading to arrested growth and cell death...
March 14, 2018: Mathematical Biosciences
Recep Kaan Dereli, Xiaofei Wang, Frank P van der Zee, Jules B van Lier
The impact of nitrogen on biological performance and sludge filterability of anaerobic membrane bioreactors was investigated in two lab-scale cross-flow anaerobic membrane bioreactors that were fed with cheese whey at two different COD:TKN ratios (50 and 190). Nitrogen deprivation adversely affected the biological treatment performance and reactor stability, as indicated by volatile fatty acids accumulation. On the other hand, nitrogen (urea) supplementation resulted in a reduced sludge median particle size and decreased sludge filterability...
March 7, 2018: Water Research
J-P Suuronen, M Sayab
Zircon is the most widely used mineral in petrochronology and provides key information about magmatic and crustal differentiation history of plutonic rocks, transport paths of clastic material 'from source to sink' and significantly contributes in the reconstruction of enigmatic planetary-scale tectonic episodes since the Archaean. However, detailed textural analysis of this accessory mineral has always been hampered by two-dimensional (2D) analytical limitations. With the advancements in X-ray nanotomography technology, it is now possible to non-destructively, yet digitally, cut, visualize, compare and quantify internal textures within zircons, their growth and zoning patterns and chemical distribution of trace elements in three dimensions (3D)...
March 16, 2018: Scientific Reports
Ditte Beck Jepsen, Jesper Ryg, Niklas Rye Jørgensen, Stinus Hansen, Tahir Masud
BACKGROUND: PaVOS is a randomized controlled trial (RCT) which aims to address the use of whole-body vibration exercise (WBV) in combination with parathyroid hormone 1-34 fragment teriparatide (PTH 1-34) treatment in patients with osteoporosis. PTH 1-34 is an effective but expensive anabolic treatment for osteoporosis. WBV has been found to stimulate muscle and bone growth. Animal studies have shown a beneficial effect on bone when combining PTH 1-34 with mechanical loading. A combined treatment with PTH 1-34 and WBV may potentially have beneficial effects on bone and muscles, and reduce fracture risk...
March 16, 2018: Trials
Sebastian Leitmann, Thomas Schwab, Thomas Franosch
We present results for the fluctuations of the displacement of a tracer particle on a planar lattice pulled by a step force in the presence of impenetrable, immobile obstacles. The fluctuations perpendicular to the applied force are evaluated exactly in first order of the obstacle density for arbitrarily strong pulling and all times. The complex time-dependent behavior is analyzed in terms of the diffusion coefficient, local exponent, and the non-Skellam parameter, which quantifies deviations from the dynamics on the lattice in the absence of obstacles...
February 2018: Physical Review. E
S R Geed, Sachin Prasad, M K Kureel, R S Singh, B N Rai
The isolated microbial Alcaligenes sp. S3 from the agricultural field was used for the biodegradation of synthetic wastewater containing atrazine. This study was conducted in an alternating aerobic-anoxic lab scale pilot plant. The performance of continuously operated pilot plant was evaluated in three different phases with varying atrazine concentration. The best performance of plant was observed in phase-II. The atrazine (200 mg/L) having COD value 1356 mg/L was used with varying flow rate and 90.56% COD removal was obtained at a flow rate of 300 mL/h on 122th day of operation...
March 13, 2018: Journal of Environmental Management
A Garbout, M Férid
Considering the features in changing the structure and properties of rare earth titanates pyrochlores, the substituted Dy2 Ti2 O7 may be very attractive for various applications. Effect of Sm and Y substitution on the structural properties of Dy2 Ti2 O7 ceramic was established. These ceramics were prepared by solid-state reaction and characterized by X-ray diffraction and Raman spectroscopy. Both analysis show that YDyTi2 O7 with the pyrochlore structure is obtained after heating at 1400°C, but SmDyTi2 O7 has already formed after sintering at 1200°C...
March 10, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Qiushi Li, Jihui Wang, Xuteng Xing, Wenbin Hu
The corrosion behavior of X65 steel was investigated in the seawater inoculated with sulfate reducing bacteria (SRB) under the aerobic environment by electrochemical impedance techniques and immersion tests. The corroded morphologies and the composition of the corrosion products were investigated. The variation of the solution parameters including the bacterium number, the pH value and the soluble iron concentration were also investigated. The results indicated that in the SRB-containing system, the impedance responses presented a depressed semi-circle in the initial period, which then turned into the blocked electrode characteristic during the later immersion...
March 11, 2018: Bioelectrochemistry
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