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Effect of feed restriction on the maintenance energy requirement of broiler breeders
da Silva Teofilo, Guilherme Ferreira,Lizana, Rony Riveros,de Souza Camargos, Rosiane,Leme, Bruno Balbino,Morillo, Freddy Alexander Horna,Silva, Raully Lucas,Fernandes, Joao Batista Kochenborger,Sakomu Asian Australasian Association of Animal Productio 2022 Animal Bioscience Vol.35 No.5
Objective: This study aimed to evaluate the effect of the ad libitum and restricted feeding regimen on fasting heat production (FHP) and body composition. Methods: Twelve Hubbard broilers breeders were selected with the same body weight and submitted in two feeding regimes: Restricted (T1) with feed intake of 150 g/bird/d and ad libitum (T2). The birds were randomly distributed on the treatments in two runs with three replications per treatment (per run). The birds were adapted to the feed regimens for ten days. After that, they were allocated in the open-circuit chambers and kept for three days for adaptation. On the last day, oxygen consumption (VO<sub>2</sub>) and carbon dioxide production (VCO<sub>2</sub>) were measured by 30 h under fasting. The respiratory quotient (RQ) was calculated as the VCO<sub>2</sub>/VO<sub>2</sub> ratio, and the heat production (HP) was obtained using the Brower equation (1985). The FHP was estimated throughout the plateau of HP 12 hours after the feed deprivation. The body composition was analyzed by dual-energy X-ray absorptiometry scanning at the end of each period. Data were analyzed for one-way analysis of variance using the Minitab software. Results: The daily feed intake was 30 g higher to T2 (p<0.01) than the T1. Also, the birds of the T2 had significatively (p<0.05) more oxygen consumption (+3.1 L/kg<sup>0.75</sup>/d) and CO<sub>2</sub> production (+2.2 L/kg<sup>0.75</sup>/d). That resulted in a higher FHP 359±14 kJ/kg<sup>0.75</sup>/d for T2 than T1 296±17.23 kJ/kg<sup>0.75</sup>/d. In contrast, the RQ was not different between treatments, with an average of 0.77 for the fasting condition. In addition, protein and fat composition were not affected by the treatment, while a tendency (p<0.1) was shown to higher bone mineral content on the T1. Conclusion: The birds under ad libitum feeding had a higher maintenance energy requirement but their body composition was not affected compared to restricted feeding.
Graphene as interface modifier in ITO and ITO-Cr electrodes
Leticia A. Silva,Jéssica M.M. Luzardo,Sanair M. Oliveira,Rafael V. Curti,Alexander M. Silva,Rogerio Valaski,Rodrigo B. Capaz,Joyce R. Araujo 한국물리학회 2020 Current Applied Physics Vol.20 No.7
We explore graphene as interface modifier for electrodes in optoelectronic organic devices by measuring the electrical properties of ITO/graphene and ITO/Cr/graphene. For this purpose, exfoliated graphene (EG) was electrochemically synthesized and deposited by spray-pyrolysis. The built-in voltage (Vbi) values were 450 mV for the ITO/CuPc/Al reference, 750 mV for ITO/Cr/graphene/CuPc/Al and 1000 mV for ITO/graphene/CuPc/Al device structures. From these results, we estimate the work functions as 3.20 eV, 3.45 eV and 4.75 eV for ITO/ EG, ITO/Cr/EG and ITO. To understand how the work function changes, we carried out first-principles calculations based on density-functional theory (DFT) where Cr work function (~4.2 eV) is not modified by the deposition of pristine graphene; however there is a substantial increase (from 4.2 eV to 5.2 eV), upon deposition of graphene oxide (GO), resulting from a complete transfer of O atoms from the GO sheet to the Cr surface forming a thin layer of chromium oxide.
대용량 어플리케이션의 분산 컴파일을 위한 Makefile 분석 및 적용 기법
Silva George Henrique,Fedoseev Alexander,조경진(Kyongjin Jo),김선욱(Seon Wook Kim) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.11
The distributed compilation becomes more and more attractive, since the code size in current software development increases exponentially. Also, the high availability of computer networks and their resources allow us to use the distributed compilation techniques to reduce the compilation time. In this paper, we propose a new dependence analysis and an adaptation method to distributed compilation. These allow us to assign each code efficiently to remote machines for remote compilation in order to achieve the minimal compilation time.
Lee, Chun Geun,Hartl, Dominik,Lee, Gap Ryol,Koller, Barbara,Matsuura, Hiroshi,Da Silva, Carla A.,Sohn, Myung Hyun,Cohn, Lauren,Homer, Robert J.,Kozhich, Alexander A.,Humbles, Alison,Kearley, Jennifer The Rockefeller University Press 2009 The Journal of experimental medicine Vol.206 No.5
<P>Mouse breast regression protein 39 (BRP-39; Chi3l1) and its human homologue YKL-40 are chitinase-like proteins that lack chitinase activity. Although YKL-40 is expressed in exaggerated quantities and correlates with disease activity in asthma and many other disorders, the biological properties of BRP-39/YKL-40 have only been rudimentarily defined. We describe the generation and characterization of BRP-39<SUP>−/−</SUP> mice, YKL-40 transgenic mice, and mice that lack BRP-39 and produce YKL-40 only in their pulmonary epithelium. Studies of these mice demonstrated that BRP-39<SUP>−/−</SUP> animals have markedly diminished antigen-induced Th2 responses and that epithelial YKL-40 rescues the Th2 responses in these animals. The ability of interleukin13 to induce tissue inflammation and fibrosis was also markedly diminished in the absence of BRP-39. Mechanistic investigations demonstrated that BRP-39 and YKL-40 play an essential role in antigen sensitization and immunoglobulin E induction, stimulate dendritic cell accumulation and activation, and induce alternative macrophage activation. These proteins also inhibit inflammatory cell apoptosis/cell death while inhibiting Fas expression, activating protein kinase B/AKT, and inducing Faim 3. These studies establish novel regulatory roles for BRP-39/YKL-40 in the initiation and effector phases of Th2 inflammation and remodeling and suggest that these proteins are therapeutic targets in Th2- and macrophage-mediated disorders.</P>
Establishment of the Latin American Soil Information System Case Colombia - IRAKA
Araujo-Carrillo Gustavo Alfons,Martinez-Maldonado Fabio Ernes,Varon-Ramirez Viviana Marcela,Gomez-Latorre Douglas Andres,Estupinan-Casallas Jhon Mauric,Silva-Arero Elias Alexander,Gonzalez-Jaimes Edua 한국토양비료학회 2019 한국토양비료학회 학술발표회 초록집 Vol.2019 No.8