Differences Between Winning and Losing Teams in Youth Basketball Games (14-16 Years Old)

( Ortega E. ),( Cardenas D. ),( Sainz De Baranda P. ),( Palao J. M. ) 한국스포츠정책과학원(구 한국스포츠개발원) 2006 International Journal of Applied Sports Sciences Vol.18 No.2

Match analysis is common in performance sport to guide training and competition. However, it is not as common at the youth level. Most studies about match analysis have studied the variables of technique and tactics in relation to final actions of a team`s ball possession. However, a few studies have analyzed participation variables of technique and tactics. The purpose of this study was to determine the differences in final and participatory actions of technique and tactics in relation to winning and losing teams, ball possession, and type of attack phase in youth basketball games. The sample consisted of 184 male players from 16 teams with an average age of 15.6 ± 0.2 years. The twenty-four games were analyzed from the men`s under-16 finals of the Championship of Andalusia (Spain). The variables studied were: game result (win or loss), variables related to type of ball possession, and variables related to pattern of play. Two groups of three observers were utilized (one group observed terminal events of each possession and the other observed possession time and pattern of play). The minimum inter-observer correlation was 0.94. The results found significant differences between winning and losing teams in the following variables: winning teams had higher values than losing teams in the following variables: 2-point field goals made, free throws made, dribbling opposed, time of movement, dribble time, use of screens, fast breaks, attack phases from 1-5 seconds, attack phases in which 2 players participated, and attack phases in which 5 players participated. The results showed that the winning teams have patterns of play that use less dribbling, in general, and less dribbling with displacement, in particular; and they used fast attack phases (1-5 s) in which two players participate. Winning patterns of play were those that used either fast breaks or a long attack phase in which all players participated.

Consequences of Post-grazing Residues Control and Birth Season on the Body Traits, Reproductive Performance and Offspring's Growth of Suckling Goats and Ewes Reared at Pasture in Guadeloupe (FWI)

Ortega-Jimenez, E.,Alexandre, G.,Arquet, R.,Coppry, O.,Mahieu, M.,Xande, A. Asian Australasian Association of Animal Productio 2003 Animal Bioscience Vol.16 No.8

In Guadeloupe small ruminants (SR) are reared for meat production under pasture conditions. Intensive rotational grazing systems (irrigated, fertilised and high stocked) allow reasonable levels of production but generate high post-grazing residues. Experiments were designed to control them. A system in which residuals were mown (RM) was tested in comparison to the control system (Residuals Remained, RR). The same design was carried out for two years with Creole goat (G) and Martinik sheep (S). An accelerated reproductive rate (3 parturitions over 2 years) was carried out. Systems were compared at three parturition seasons per year(dry, intermediate and rainy seasons). Each group was composed of 20 goats ($36.0{\pm}2.5kg$) or 20 ewes ($46.8{\pm}2.4kg$). The female body traits did not vary according to pasture management and seasons. The stocking rate averaged 1,400 kg LW/ha. The mean fertility rate for does varied significantly (p<0.05) within the kidding season, from $80.4{\pm}0.5%$ to $93.7{\pm}2.9%$ while the mean litter size was $2.30{\pm}0.07$ total kids born. No effect of pasture system was observed. Corresponding values for ewes were $83.2{\pm}12.8%$ vs. $75.6{\pm}12.5%$ (p<0.05) and $2.43{\pm}0.24$ vs. $2.03{\pm}0.29$ (p<0.01) total lambs born for SRM and SRR ewes, respectively. A seasonal effect was observed upon ewe performances. The preweaning mortality of kids and lambs averaged 16.3% and 14.4%, respectively. It was 7 and 9 percentage points more (p<0.01) for RR than for RM kids and lambs, respectively. For both species, weaning took place at an average age of $81.4{\pm}3.6days$. In Creole kids, live weight at birth and at weaning were $1.9{\pm}0.2kg$ and $8.9{\pm}0.8kg$, respectively. In the Martinik sheep, the traits averaged $2.9{\pm}0.2kg$ and $18.9{\pm}0.9kg$. For both traits in both species, significant (p<0.05) group${\times}$season interactions were recorded. The consequences of elimination of post-grazing residues varied according to the SR species, the environmental conditions and the animal physiological status. The forage characteristics were not limiting factors since forage availability in the RM systems (2,300 and 2,600 kg DM/ha, respectively) and chemical composition were at satisfactory levels (CP content averaged 12 and 10%). It is recommended to develop new grazing system which would allow the use of post-grazing residues instead of mowing the refusals.

Reproductive Response of Ewes Fed with Taiwan Grass Hay (Pennisetum purpureum Schum.) Supplemented with Duckweed (Lemna sp. and Spirodela sp.)

Zetina-Cordoba, P.,Ortega-Cerrilla, M.E.,Torres-Esqueda, M.T. Sanchez,Herrera-Haro, J.G.,Ortega-Jimenez, E.,Reta-Mendiola, J.L.,Vilaboa-Arroniz, J. Asian Australasian Association of Animal Productio 2012 Animal Bioscience Vol.25 No.8

The effect of duckweed (DW) supplementation was evaluated on dry matter intake (DMI), presence and duration of estrus, percentage of ewes repeating estrus and pregnancy rate, as well as the concentration of progesterone ($P_4$) in multiparous crossbred ewes from Pelibuey, Dorper, and Katahdin breeds, fed with Taiwan grass hay (TWH). Eighteen ewes with $39.7{\pm}4kg$ mean body weight, kept in individual pens, were randomly assigned to one of the following treatments: $T_1$: TWH, $T_2$: TWH plus 200 g DW, $T_3$: TWH plus 300 g DW. The ewes were synchronized with 40 mg fluorogestone acetate (FGA) and 400 UI equine chorionic gonadotropin (eCG). Data were analyzed as a completely randomized design using the GLM procedure. DW supplementation had no effect on dry matter intake (p>0.05); however, a slight decrease of TWH intake was observed as DW supplementation increased. No differences (p>0.05) were found in the beginning of estrus, percentage of ewes presenting it, its duration, or pregnancy rate. There were no differences (p>0.05) on $P_4$ concentration among treatments, or $treatment{\times}period$ interaction (p>0.05). However the period was significant (p<0.01), since the $P_4$ levels increased as time increased after the removal of the FGA device and eCG application.

Electronic transport study of PbSe pellets prepared from self-assembled 2D-PbSe nanostructures

E. Díaz-Torres,A. Flores-Conde,A. Avila-García,M. Ortega-Lopez 한국물리학회 2018 Current Applied Physics Vol.18 No.2

This work presents a study of the electronic transport properties of PbSe pellets fabricated starting of PbSe nanostructures that exhibited a flake-like 2D morphology, which were synthesized by the coprecipitation method. Seebeck coefficient measurements revealed that the PbSe sample displays ntype conductivity, a maximum Seebeck coefficient of 512.6 mV/K around 380 K, and that the carriers scattering is dominated by acoustic and optical phonons. The Fermi level dependence on the temperature and the band gap energy are also reported. Interestingly, size-dependent confinement effects due probably to the reminiscent PbSe 2D character could be evidenced.

Beams affected by corrosion influence of reinforcement placement in the cracking

Ortega, Nestor F.,Rivas, Irene E.,Aveldano, Raquel R.,Peralta, Maria H. Techno-Press 2011 Structural Engineering and Mechanics, An Int'l Jou Vol.37 No.2

The results of experimental and numerical investigations on reinforced concrete beams, with different longitudinal rebars affected by corrosive processes are presented in this paper. Different diameters and/or different distributions of longitudinal rebars were employed keeping constant the total section in each analyzed case, (maintaining a constant stirrup diameter and distribution). The rebars were subjected to accelerated corrosion in the experimental study. Electrochemical monitoring of the process, periodic measuring of the cover cracking and gravimetry of the rebars were performed through the test. Some building recommendations are obtained in order to be considered by designers of concrete structures. The numerical simulation was carried out through the application of the Finite Element Method (FEM), employing plane models, and using linear-elastic material model. The cracking process was associated with the evolution of the tensile stresses that were originated. This numerical methodology allows the monitoring of the mechanical behavior until the beginning of the cracking.

Adsorption of Graphene Oxide onto Synthetic Fibers: Experimental Conditions

E. Giménez-Martín,J. A. Moleón-Baca,A. Ontiveros-Ortega,I. Plaza 한국섬유공학회 2018 Fibers and polymers Vol.19 No.11

Comparative studies on the adsorption capacity of two synthetic fibers, polyamide (PA 66) and polyester (PET) pre-treated with N-cetylpyridinium chloride (PET-NCPCl), towards graphene oxide (GO) have been carried out. The fiber samples were characterized by scanning electron microscopy (FE-SEM) and Raman spectroscopy. The results of adsorption isotherms, kinetics, and zeta potential determinations as a function of the GO concentration, pH, and temperature show that at a low pH of 2.5 and a high temperature of 323 K, almost 99 % of the 75 mg/l GO solution is adsorbed onto PA 66 and 70 % onto the PET-NCPCl fibers. The interaction should be first attributed to electrostatic forces, also the adsorption data exhibited a good fit to the Freundlich isotherm model and the free energy value of 10 kJ/mol was in the range of physical adsorption, which could suggest that the interaction is driven mainly by physical forces. Due to the increasing development of wastewater treatments based on the GO reactivity with metals and cationic contaminants, synthetic fibers coated with GO could be considered an adsorbent for environmental applications.

Beams affected by corrosion influence of reinforcement placement in the cracking

Néstor F. Ortega,Irene E. Rivas,Raquel R. Aveldaño,María H. Peralta 국제구조공학회 2011 Structural Engineering and Mechanics, An Int'l Jou Vol.37 No.2

The results of experimental and numerical investigations on reinforced concrete beams, with different longitudinal rebars affected by corrosive processes are presented in this paper. Different diameters and/or different distributions of longitudinal rebars were employed keeping constant the total section in each analyzed case, (maintaining a constant stirrup diameter and distribution). The rebars were subjected to accelerated corrosion in the experimental study. Electrochemical monitoring of the process, periodic measuring of the cover cracking and gravimetry of the rebars were performed through the test. Some building recommendations are obtained in order to be considered by designers of concrete structures. The numerical simulation was carried out through the application of the Finite Element Method (FEM), employing plane models, and using linear-elastic material model. The cracking process was associated with the evolution of the tensile stresses that were originated. This numerical methodology allows the monitoring of the mechanical behavior until the beginning of the cracking.

Effects of Policosanol on Patients with Ischemic Stroke: A Pilot Open Study

R. Mas,L.L.Ortega,J. Schez,L. Ferndez,S. Mendoza,R. Gamez,J.C. Fernadez,J. Illnait,E. Alvarez 한국식품영양과학회 2006 Journal of medicinal food Vol.9 No.3

Stroke is a major health problem worldwide. Its pharmacological management includes thrombolytic therapyfor the acute phase and antiplatelet drugs for stroke recovery and prevention. Statins can help in the acute phase and in pre-venting stroke in secondary prevention patients. Policosanol is a cholesterol-lowering drug with concomitant antiplatelet ef-fects, with protective effects in stroke models. This observational study investigated the effects of policosanol (20 mg/day)with antiplatelets and vitamins. After hospital discharge, patients were followed up every 3 (first year) and 6 (thereafter)months. Neurological improvement was assessed with the modified Canadian Neurological Scale. Adverse events wererecorded. Fifty patients were included; all completed the study. Neurological score improved throughout the study. No pa-tient died, and most [40 (80.0%)] did not experience new vascular events; only one (2.0%) suffered a new stroke, and two(4.0%) suffered more than one transient ischemic attack. The time to the first recurrent event was 46.2 months. Policosanolpersistently lowered serum total cholesterol, with such reduction correlating with the neurological improvement (R.chemic stroke treated with aspirin and vitamins showed good results on neurological outcomes and recurrent events. Thisstudy, however, has limitations, since it was open and uncontrolled, and patients also consumed aspirin and vitamins. Newrandomized, controlled studies are needed to assess the usefulness of policosanol in stroke management.

Doxazosin Treatment Attenuates Carbon Tetrachloride-Induced Liver Fibrosis in Hamsters through a Decrease in Transforming Growth Factor β Secretion

( Martin Humberto Munoz Ortega ),( Raul Wiliberto Llamas Ramirez ),( Norma Isabel Romero Delgadillo ),( Tania Guadalupe Elias Flores ),( Edgar De Jesus Tavares Rodriguez ),( Maria Del Rosario Campos E 대한소화기기능성질환·운동학회 2016 Gut and Liver Vol.10 No.1

Background/Aims: The development of therapeutic strategies for the treatment of cirrhosis has become an important focus for basic and clinical researchers. Adrenergic receptor antagonists have been evaluated as antifibrotic drugs in rodent models of carbon tetrachloride (CCl4)-induced cirrhosis. The aim of the present study was to evaluate the effects of carvedilol and doxazosin on fibrosis/cirrhosis in a hamster animal model. Methods: Cirrhotic-induced hamsters were treated by daily administration of carvedilol and doxazosin for 6 weeks. Hepatic function and histological evaluation were conducted by measuring biochemical markers, including total bilirubin, aspartate aminotransferase, alanine aminotransferase and albumin, and liver tissue slices. Additionally, transforming growth factor β (TGF-β) immunohistochemistry was analyzed. Results: Biochemical markers revealed that hepatic function was restored after treatment with doxazosin and carvedilol. Histological evaluation showed a decrease in collagen type I deposits and TGF-β-secreting cells. Conclusions: Taken together, these results suggest that the decrease in collagen type I following treatment with doxazosin or carvedilol is achieved by decreasing the profibrotic activities of TGF-β via the blockage of α1- and β-adrenergic receptor. Consequently, a diminution of fibrotic tissue in the CCl4-induced model of cirrhosis is achieved. (Gut Liver 2016;10:101-108)

Adsorption capacity of bone char for removing fluoride from water solution. Role of hydroxyapatite content, adsorption mechanism and competing anions

N.A. Medellin-Castillo,R. Leyva-Ramos,E. Padilla-Ortega,R. Ocampo Perez,J.V. Flores-Cano,M.S. Berber-Mendoza 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.6

The adsorption of fluoride from water on bone char (BC) was investigated in this work, and the fluorideadsorption capacity of BC was compared to that of hydroxyapatite (HAP). The adsorption capacity of BCand HAP drastically increased while decreasing the pH from 7.0 to 5.0. Furthermore, the fluorideadsorption on BC was due to its HAP content and was not considerably affected by the presence of theanions Cl-, HCO3-, CO32-, SO42-, NO3- and NO2-. The mechanism of fluoride adsorption on BC wasattributed to electrostatic interactions between surface charge of BC and fluoride ions in solution.