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Search Results: 1 - 10 of 1801 matches for " ELDA IRMA JEANNE JOICE KAWULUR "
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Association of Sexual Maturation and Body Size of Arfak Children
HAYATI Journal of Biosciences , 2012,
Abstract: Gonad maturation in pubertal girls and boys is accompanied with somatic growth spurt, changes in quantity and distribution of body fat (BF), development of secondary sex characters, and relevant physiological events. Menarche (first event of menstruation) and spermarche (first event of nocturnal sperm emission) are usually used as indicators of gonad maturation. We found that median age at menarche of Arfak girls in Manokwari, West Papua is 12.2 years, while median age at spermarche of boys is 13.6 years. A possible factor causing young age at menarche is due to adaptation to unstable environmental conditions because of high risk of mortality by malaria disease during childhood. The events of menarche and spermarche achieved one year after the peak body height (BH) velocity, and just before or at the same time with the time of maximum growth rate of body weight (BW), body mass index (BMI), and BF. The average BMI of Arfak girls was big at 21.9 kg/m2 at the time of their menarche. Bigger average BMI might be caused by prepubertal slowing down of BH growth compare to growth of BW whichis still increasing. Girls accumulate BF before puberty to be used as an energy reserve for the occurrence of menarche. At the time of development of secondary sexual characters girls use the fat reserve so it decline sharply after puberty. In boys, growth rate of BF was stopped at 11 years old, and then growing negatively presumably because boys use fat mass for the occurence of spemarche. BF growth rate reached the lowest point at the age 16 years old, and then increase linearly with age through adolescence until adulthood at age 23 years old.
Morphological Characteristics and Nutritional Values of Wild Types of Sago Mushrooms (Volvariella sp.) That Growth Naturally in Manokwari, West Papua  [PDF]
Elda Christian Paisey, Barahima Abbas
Natural Science (NS) , 2015, DOI: 10.4236/ns.2015.713059
Abstract: Sago mushrooms (SMs) are an edible fungus that is favorite food for community in Papua and West Papua, Indonesia in particular. This work aims to determine the morphological characteristics and nutritional value of SMs growing naturally in Manokwari. Morphological characteristic of SMs that grows wild in Manokwari has an average of pileus diameter 9.53 cm, pileus weight 21.53 grams, and pileus color. The pileus color is divided into three colors: outer circle color is RHS163D, middle circle color is RHS199B, and inner circle color is RHS199A. Average of stipe diameter, length, and weight is 1.00 cm, 10.43 cm, and 9.15 gram respectively. Stipe is a yellowish white color (RHS155B). SMs nutrient content that grows naturally in Manokwari is potassium 1394.02 milli-grams and calcium 13.37 milligrams per 1000 grams fresh weight. The others nutrient contents of SMs that are measured are fat 1.01 grams, protein 1.30 grams, carbohydrates 0.18 grams, phosphorus 0.34 milligrams, and energy 15.01 kilocalories per 100 grams of fresh weight.
A low-cost method to test cytotoxic effects of Crotalus vegrandis (Serpentes: Viperidae) venom on kidney cell cultures
Girón, María E.;Aguilar, Irma;Romero, Lisandro;Sánchez, Elda E.;Pérez, John c.;Rodriguez-Acosta, Alexis;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2005, DOI: 10.1590/S0036-46652005000300006
Abstract: the pathogenesis of the renal lesion upon envenomation by snakebite has been related to myolysis, hemolysis, hypotension and/or direct venom nephrotoxicity caused by the venom. both primary and continuous cell culture systems provide an in vitro alternative for quantitative evaluation of the toxicity of snake venoms. crude crotalus vegrandis venom was fractionated by molecular exclusion chromatography. the toxicity of c. vegrandis crude venom, hemorrhagic, and neurotoxic fractions were evaluated on mouse primary renal cells and a continuous cell line of vero cells maintained in vitro. cells were isolated from murine renal cortex and were grown in 96 well plates with dulbecco's modified essential medium (dmem) and challenged with crude and venom fractions. the murine renal cortex cells exhibited epithelial morphology and the majority showed smooth muscle actin determined by immune-staining. the cytotoxicity was evaluated by the tetrazolium colorimetric method. cell viability was less for crude venom, followed by the hemorrhagic and neurotoxic fractions with a ct50 of 4.93, 18.41 and 50.22 μg/ml, respectively. the vero cell cultures seemed to be more sensitive with a ct50 of 2.9 and 1.4 μg/ml for crude venom and the hemorrhagic peak, respectively. the results of this study show the potential of using cell culture system to evaluate venom toxicity.
Cuál comunicación para qué democracia?
Elda Morales
Utopia y Praxis Latinoamericana , 2004,
Abstract: Este aná li sis par te de una teo ría que con - cen tra su in te rés en la co mu ni ca ción como eje de in ter me dia ción en tre la po lí ti ca y la de mo cra - cia. Se tra ta de dar res pues tas a las in te rro gan - tes: i) de be de fi nir se la po lí ti ca como he cho co - mu ni ca ti vo?, ii) pue de re plan tear se el sis te ma co mu ni ca ti vo de la so cie dad, y crear nue vas ba - ses de con vi ven cia po lí ti ca y so cial?, iii) tie ne algo que ver la co mu ni ca ción con la po si bi li dad de pro po ner un pen sa mien to nue vo so bre la de - mo cra cia? Fi nal men te, se des cri be el apor te del pen sa mien to crí ti co la ti noa me ri ca no al ex ten so de ba te pro vo ca do por las si guien tes pre mi sas: i) que lo fun da men tal en la de fi ni ción de la co mu - ni ca ción no es la téc ni ca; ii) para pen sar la co - mu ni ca ción es ne ce sa rio vin cu lar la a sus raí ces cul tu ra les y so cia les.
Etica, ciencia y ambiente: reflexiones sobre la acción humana, el poder desenfrenado de la ciencia y la técnica, y la vulnerabilidad del hombre y la naturaleza
Elda Tancredi
Revista Theomai , 2005,
Situa??es de estresse no v?lei de praia de alto rendimento: um estudo de caso com uma dupla olímpica
Revista Portuguesa de Ciências do Desporto , 2007,
Abstract: competitive stress is one of the most determining psychological factors to high performance sport, for, in that context, the athletes face all kinds of competitive pressure. this research, done with a brasilian beach volley olympic pair, first on the national/international ranking (2003), intends to analyse the stress-generator situations for athletes in the 2004 world tour, which preceded their participation on the athens olympic games, how the athletes lived competitive stress and what stress-controlling techniques they used. the data were collected with a specific performance feedback instrument (adapted from ravizza, 1991), in which the athletes registered their every-game stressing situations, how they lived them and the controlling techniques used. results show that situational elements were the most determinating and, among them, the game-related aspects were the most influent specific factors, being the difficulty/easyness of the match the main source of stress for the athletes. thoughts and body emotions/sensations correspond to the main way through which athletes face stress; the cognitive techniques (self-information, concentration, imagination), the most used by the athletes.
Breastfeeding and obesity: a meta-analysis  [PDF]
Jeanne M. Stolzer
Open Journal of Preventive Medicine (OJPM) , 2011, DOI: 10.4236/ojpm.2011.13013
Abstract: Over the last decade, obesity rates have reached epidemic proportions in the United States of America. Comorbidities associated with overweight and obesity include, but are not limited to, hypertension, type 2 diabetes, cardiovascular disease, and elevated cholesterol levels. As a direct result of obesity, data indicates that these diseases are now being detected in an unprecedented number of American children, adolescents, and adults. Although the major cause of the obesity epidemic in America has thus far been attributed to excessive caloric intake and lack of physical activity, this paper will explore the pivotal role that breastfeeding plays in the prevention of overweight and obesity throughout the life course. Epidemiological data demonstrates that breastfeeding significantly reduces the incidence of overweight and obesity and that exclusive and long term breastfeeding has been strongly correlated with a reduction in LDL cholesterol, blood pressure related disorders, type 2 diabetes, and cardiovascular dysfunction. While it is certain that diet and exer cise are integral factors associated with overweight and obesity, the time has come for a collective recognition of the protective effects associated with breastfeeding if we are serious in our endeavor to eradicate the overweight and obesity epidemic in America.
The Conversational Outcomes of Task Implementation  [PDF]
Jeanne Rolin-Ianziti
Open Journal of Modern Linguistics (OJML) , 2014, DOI: 10.4236/ojml.2014.41010

Arguing that tasks are primarily a resource to deploy interactions in the classroom, the present study uses a conversation analysis framework to investigate forms of talk resulting from the implementation of the task-based language teaching approach (TBLT) in the second language (L2) classroom. On the basis of three extracts selected from naturally occurring conversations between second semester beginners in French and their teacher as they are completing a comprehension task and a production task in situ, the study uncovers five types of interactions, respectively labeled the teaching interaction, the L1 to L2 how do you say exchange, the correctness interaction, the correction interaction and the repair exchange. Variations across types are apparent in the turn-taking system and in the sequential organization of the interactions. The variations are explained by referring to the characteristics of the two tasks as work plans, as well as to the contextual factors (i.e. the underlying activity and the classroom organization) that are put into place during the implementation of the tasks. Finally, the teaching implications of the study’s findings are discussed, arguing that this kind of research may be useful for teacher training purposes insofar as it provides classroom input to reflect upon the processes at play during TBLT implementation.

Advances in Regenerative Medicine: From Stem Cells to Organoids  [PDF]
Jeanne Adiwinata Pawitan
Journal of Biosciences and Medicines (JBM) , 2018, DOI: 10.4236/jbm.2018.612012
Stem cells have moved from lab to bedside, and many initial studies showed promising results. Therefore big companies are entering the business. However, most initial studies did not used controls to make sure of the efficacy of stem cells. Many phase-1 studies showed safety of stem cell therapies, when precaution measures were adapted. However, efficacy needs to be proven by randomized controlled trials (RCT) to exclude placebo effects. Recently, various RCTs for various conditions have been done with various contradictory results. Therefore, a meta-analysis is very useful to know whether a stem cell therapy really work for a certain condition. As various centres used various type of stem cells, various dose, and route of application, as well as different outcome measures with various results for one certain condition, sometimes it is difficult to conduct a meta-analysis when there is high heterogeneity, which is like pooling “apples” with “oranges” and “avocado” that will lead to a misleading conclusion. In many cases, where the studies are highly heterogeneous, and the heterogeneity can’t be identified, then a descriptive systematic review is the best solution to take a conclusion which protocol is the best and valuable to be standardized. Formerly it was believed that stem cells that are given to patients work by differentiating into the needed cells, and thus replacing damaged cell. However, recent evidence showed that only a few stem cells homed to the desired area, while a large amount went to various areas that were remote from the damaged area. Even though they were trapped in remote areas, the stem cells still exerted beneficial effects by remote signalling and secretion of various beneficial factors. Therefore, there are attempts to produce stem cell secretomes/metabolites to replace the stem cells, as metabolites are easier to handle and transported compared to the cells themselves. In addition, various studies worked on substitute tissue/organs “ex vivo” to be transplanted to replace a damaged organ. There are various means to produce a tissue/an organ/organoid “ex vivo” (tissue engineering) by using various stem cells, scaffold, and soluble factors, in various vessels from static vessel to bioreactors, and “on chips”. Though these attempts are in the initial stage, but some translational animal studies have been done. A more usual use of these “ex vivo” developed tissues/organs/organoids is for drug testing, such as toxicity testing, and for studying the mechanism of certain diseases that is directed
Epimorphisms between Finite 4-Valued Modal Algebras  [PDF]
Aldo V. Figallo, Elda Pick, Susana Saad
Advances in Pure Mathematics (APM) , 2014, DOI: 10.4236/apm.2014.45029

In this paper, we determine conditions for the existence of an epimorphism between two finite 4-valued modal algebras and state a method to obtain it. Furthermore, we obtain formulas which generalize those indicated by R. Sikorski for finite Boolean algebras [1], and by M. Abad and A. V. Figallo for finite 3-valued \"\" ukasiewicz algebras [2].

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