bluuebunny/crossref_metadata_2025_split huggingface dataset:
Factibilidad de la producción masiva de alevines machos de Tilapia nilotica a través de la inversión hormonal del sexo en Honduras
Authors: Green Bartholomew W. , López Luis A. 
Published: October 2018

The demand for young male fish of Tilapia nilotica for seeding in reproduction ponds has significantly Increased In the last five years. New production technologies are necessary in order to have adequate supply for existent and future demands of the young fish. One of those is the hormonal sexual inversion of the young fish of Tilapia nilotica via the oral Ingestion of a synthetic male hormone (17 a-methyl-testosterone) during a period of 28 days which starts shortly after hatching and before differentiation of genital tissue. The objective of this work which was conducted during the months of January through November, 1988 was to determine the feasibility of implementing the massive production of young males of Tilapia nilotica using the hormonal sexual Inversion process at the experimental station .Acuicola El Carao. in Comayagua, Honduras. The process requires obtaining young fish less than 13 min long from reproduction ponds (0.05-0.1 ha) that have been seeded with Tilapia nilotica (2 females: 1 male). The ponds are then drained within 18 to 20 days after having been seeded, the reproducers are transferred to concrete separating tanks and the young fish are harvested by hand using a net 1.6 mm long. The complete cycle for young fish production lasts approximately 23 days. The average number of harvested fish varies between 66,500 to 99500. The fish are seeded at a population of 4,400/m2 in .japas. (wire nets of 1.6 mm, with dimensions 2 m x 2.5 m x I m or 1 m x 2 m x I m, with an average water depth of 60 cm) after having been passed through a 3.2 mm separator net. The hormone is incorporated into the ground feed (23 % protein) at a rate of 60 mg kg-1. The ground reed Is applied four times per day, seven days a week. The duration of the treatment described is 28 days. The average life span of the hormonal treatment was 87.6%. Treated fish were seeded in prefattening ponds (0.2 ha) for additional growth (102,500 ha-1). A total of 1.935,000 fish were harvested from the reproduction ponds of which 350,000 were discarded due to excess size. Of the 1.595,000 fish, 1.313,500 were treated with the hormone. Of that 1.199,600 fish were found to complete the treatment cycle. Of the seeded pre-fattening ponds with a total of 661,7(W fish an average survival rate of 81.6% was obtained. Up till November, 1988, 3,000 18 g fish were produced, 97% being males. The cost of production of treating the fish (0.15 g each) was L 9.12/1000. This technology has resulted in being feasible not only for the experiment station in Comayagua but should also be feasible for qualified fisheries
Efecto de la selección recurrente por sequía sobre el rendimiento y características agronómicas de líneas S1 de maíz (Zea mays L.) evaluadas en tres ambientes de Centro América, 1989
Authors: Zea José Luis , Quemé José Luis , Aguiluz Adán , Brizuela Luis , Córdova Hugo 
Published: October 2018

Breeding for adaptation to adverse environment should capitalize on additive genetic variance while simultaneously reducing genotype by environment interactions. In the present work, 400 S1 maize lines from a population resistent to drought from the Collaborative Regional Maize Breeding Project were evaluated under limited moisture conditions. These lines were evaluated in a lattice design of 20 x 20 with two replications per location in three different moisture environments. Selection pressure was 10%. Selection differentials for the selected fraction for recombination and experimental varieties were high. The selection differential was higher under limited moisture conditions confirming highly significant differences observed in the analysis of variance for lines. The experimental variety and the selected fraction had yield reductions with drought of 36%, in comparison to the population bulk which was reduced by 51 % with drought, demonstrating the efficacy of applied selection pressure. Within the variables studied, ears per plant correlated the highest with yield under limited moisture conditions. The anthesis-silking interval did not correlate as high with yield (interval of.8 to 5.9 days), possibly because the population had becn improved for this eharaetcristie. Estimatcd stability paramcters (β = 1 r = 0.9) identified the selected lines for synthctie varictics as stable cntries with a eonsistent response aeross the 3 moisture environments. Broad-sense heritability estimates (H2 = 0.43 and H2 = 0.64**) for yield and ears per plant under drought indieate that oneean expeet to obtain substantial selection progrcss by increasing the frequencies of favorable alleles which condition the hcritability of these characteristics.
Establecimiento y producción de materia seca de gramíneas promisorias en el departamento de Jutiapa, Guatemala
Authors: Reyes A. Sergio , Soto O. Raúl A. , Vargas B. Bugo , Gutiérrez O. Miguel , Roldán P. Gonzalo 
Published: October 2018

With the aim of sclecting improved pasture grasses for the sub-humid forcst conditions in the department of Jutiapa, Guatemala, Courteen acccssions previously selected wercevaluated. A split plot randomized complete block design with four replications was used where the main plots were accessions and sub plots cutting frequency (3,5,7 and 9 weeks). Measurements were made during the periods of maximum and minimum precipitation in 1988 and 1989. Mean ground cover was 82.9% ± 8.15 and 72.5% ± 8.34 for maximum and minimum precipitation periods, respectively. Significant (P<0.01) effects of year, precipitation period, accession, cutting frequency and interactions between these variables werc found for dry matter production. The average yield under maximum precipitation was 4.3 ton/ha with B. Dictyoneura, and 6.63 ton/ha for CIAT 6133, both of which being significantly better than the other materials (P ≤ 0.05). Under minimum precipitation, cutting frequencies of 7 and 9 wceks were equal or superior to 3 and 5 weeks, with mean yield of 4.92 t / ha. Entries B. decumbens CIAT 606, P. maximun CIAT 673, P. maximun (local), and P. purpureum cv. Mott were modcrately affected by insects. The entries P. maximun (local) and C. nlemfuensis EAP 138 showed moderate damage by discase.
Selección en cruzas interraciales tropicales de maíz de México para adaptación a valles altos
Authors: Navas Alejandro A. , Cervantes Tarcicio 
Published: October 2018

The response of the selection, and its adaptation at high plateaus, of five generations of tropical corn race crosses from Mexico, with a 0- 700 masl altitude range, was evaluated. An assay was planted at Montecillo, Mexico (locale with high plateaus) using four generations of 22 tropical interracial crosses, nine race progenitors and four local populations as controls. Besides of the grain yield per stalk, 15 characters were studied, some as yield components and others as of agronomic interest for its adaptation. The selection for high platea u adaptation with tropical corn inter-racial crosses was efective to increase grain yield per stalk, achiering an average response of 18% per selection cycle, in five cycles. Although with smaller increments, the number of ears per stalk, lenght, diameter and grain percentage of the ear, volume and weight of 100 seeds were modified. Ear and plant height showed undesirable agronomic responses, while days to tasselling, blooming coincidence and plant health improved with the selection. Six crosses in F8 were identified as matching the yield and other characters to the best local control Huamantla (conical race). According to the progenitors used in these crosses, it is deduced that the Tuxpeño race was the largest gene contributor for yield and Vandeño for adaptation genes, while Tepecintle showed a very poor gene contribution to the selection response.
Efectos de la tensión calórica en la época seca sobre algunos índices fisiológicos y el estado general en lactación y crecimiento en ganado lechero cruzado
Authors: Arauz Edil E. 
Published: October 2018

The test was conducted, at the facilities of the Dual Purpose Dairy Program of the University of Panama in Chiriqui, Panama, to quantify the main climatic variables during the dry season and their effect on so me physiological indexes of lactating and growing hybrid dairy cattle. The physiological variables were analyzed using the split-plot experimental design in time and contrast of polynomial regression. Ten lactating hybrid cows, with and average weight of 446 kg and a milk production of 6.8 kg/cow/day, and ten calves weighing 118 kg each were used. The animals were Holstein/Brown Swiss X Zebu crossbreeds. The micro-climatic characterization, based on solar radiation, ambient temperature and the temperature-humidity index, indicated that the day time period during the dry season is the representative type of effective climatic heat stress,lactating cows and calves were affected by heat stress, and quadratic and cubic increases were observed in rectal temperature and the respiratory index over the normal physiological pattern.
Frecuencias de corte y niveles de fertilización nitrogenada en rendimiento y calidad del forrraje de morera (Morus sp.), en Cuyuta, Guatemala
Authors: Rodríguez Carlos , Quiñones Juan A. , Arias Rodrigo 
Published: October 2018

The trial was conducted at the Centro de Producción Agrícola of ICfA in Cuyuta, Escuintla-Guatemala in order to generate information on the yield and quality of edible mulberry (Morus sp.) roughage treatments consisted of three harvest frequencies (6; 9 and 12 weeks and three fertilization levels of nitrogen (0.40 and 80 kg/ha). A complete randomized block experimental design, with a factorial arrangement (3x3) was used. The cutting height was 0.3 m above the ground level with two sequencies: from August 2nd to September 13 th and from September 13th to December 6th, 1990. In both cases, the 12 week frequency cutting and 80 kg of N were superior to the others (P<=0.01), yielding 6.87 and 6.15 t/ha of dry matter respectively. The yields at 9 weeks were statistically higher than those at 6 weeks. The highest protein percentage of the whole plant, leaves and stalks were produced at 6 weeks. The dry matter digestibility values in vitro showed little variability among treatments, with averages for whole plants, leaves and stalks of 65, 91 and 41 %, respectively. The preceeding data suggests that the mulberry has an excellent potential as a balanced supplement (protein and energy) for dual purpose cattle on the Southern coast of Guatemala.
Utilización de aceite quemado y paraquat en la desecación de soya y sus efectos en la calidad de la semilla durante el almacenamiento
Authors: Ibañez R. 
Published: October 2018

The assay was conducted in Pelotas, Rio Grande do Sul-Brasil, to compare the effect of used engine oil with to paraquat (Gramoxone) applied during the physiological maturition of soybean seeds (Glicyne max (L.) Merrill), Bragg variety. The oil doses were 5.3, 8.5 and 12 l/ha. The desiccation intensity was determined and 30 pods per plot were periodically collected to follow the humidity content of the seeds, to 18%. The humidity was later reduced to 10.5 +0.5 and 2.0 kg of seeds were stored, in cotton bags,during 6 months under the environmental conditions at the Centro de Entrenamiento de Semillas of the Federal University of Pelotas. The seeds were subjected to germination, vigor and phytosanitary tests at harvest time and after 3 and 6 months of storage. Under the conditions of this trial, the doses of 12 l/ha of oil and 2 l/ha of paraquat: a) act as desiccants for soybean plants, b) favors the production of seeds with better viability and vigor after 6 months of storage and c) guarantied better sanitary seed quality after 6 months of storage.
Estudio de la estabilidad en líneas avanzadas y variedades de arroz (Oryza sativa L.) usando dos metodologías.
Authors: Castañon Guillermo 
Published: October 2018

Four loealities in the State of Campeche, Mexico were used during the Spring-Summer of 1982 and 1983 to conduct trial in orferto study the stability of rice genotypes. The studied variables were: days to heading (DH), plant height (PH) and grain yield (GY). Two methodologies (Eberhart and Russell, 1966 and Wricke, 1965) were compared to determine which was most effective in detecting the stability ofthe tested genotypes. The results show that these tested genotypes were different or were environmentaly affected at each locality. The PH mea n was slightly shorter for dry farming cultivars. This shortage was largely due to thc effect ofthe Edzna environment which was drier because of the soil type. Among the assayed genotypes, there is a potential for GY in two of the advanced lines (IR2055-466-6-6 and IR2055-481-2-l Cu). One of these could be released as a new variety for rainfed conditions. The results show that either method can be used, giving the same response, although the Wricke's method is more easily interpreted that Eberhart and Russell.
Comportamiento de híbridos de maíz intersintéticos generados de selección recíproca recurrente.
Authors: Vasal S. K. , Vergara N. , McLean S. 
Published: October 2018

The populations 21 (Tuxpeño) and 32 (Eto Blanco) are known to be heterotic and are being improved using a modified interpopulation improvement system. In this study, synthetics with 3, 6, 9 and 12 lines were developed from each population and then intercrossed in a design-2 mating system to generate 16 intersynthetic hybrids. The 16 intersynthetic hybrids, 8 parcntal synthetics, and a single cross hybrid entry as a control were evaluated in four localities in a 5 x 5 simple lattice design with 4 replications. The yield performance of synthetics from Eto and Tuxpeño involving 6- 12 lines and the 3-lines Tuxpeño synthetics was similar (5.8 - 6.3 t/ha). However, the 3-1ine Eto synthctic registered a marked decrease in yield (5.1 t/ha). The bettcr parent heterosis of intersynthetic hybrids ranged from 11.1 to 29.6%. Usually, crosses among synthetics involving a fewer lines resulted in higher heterosis compared to synthetic crosses involving more than 3 lines. The results suggest that intersynthetic hybrids formed from 6 - 9 lines seem more appealing considering the level of heterosis (>20.0%) and a high yield per se of parental varieties. The intersynthetic hybrids offer an attractive option for those national programs with newly initiated hybrid projects, for creating hybrid -oriented maize germplasm and inbred line development.
YANG, Fengang, Joy K. C. TONG and Allan H. ANDERSON (eds), 'Global Chinese Pentecostal and Charismatic Christianity'
Authors: Usher John 
Published: October 2018

YANG, Fengang, Joy K. C. TONG and Allan H. ANDERSON (eds), Global Chinese Pentecostal and Charismatic Christianity. Leiden: Brill, 2017. 372pp. Pbk. ISBN: 9789004336893. €68.
Yapay Alg Algoritmasının Tasarım Optimizasyon Problemlerindeki Performansı Üzerine Bir Çalışma: Basınç Yayı Örneği
Authors: ATİLA Ümit , DORTERLER Murat , ŞAHİN İsmail 
Published: October 2018

- Makine elemanlarının
optimum tasarımı mühendislikte yaygın olarak çalışılan bir araştırma konusudur.
Basınç yaylarının minimum ağırlığa veya hacme göre tasarımını bu alanda en çok
çalışılan problemlerden birisidir. Bu problem ayrıca optimizasyon yöntemleri
için değerlendirme problemi olarak kullanılmaktadır. Yapay Alg Algoritması
(YAA) bir optimizasyon yöntemidir ve besin
üretmek için ihtiyaç duydukları maddelere erişmek üzere ortam şartlarına uyumda
doğal bir yeteneğe sahip alglerin davranışlarından esinlenmiştir. Bu çalışmada,
basınç yaylarının minimum hacme göre tasarımı YAA ile optimize edilmiştir ve YAA’nın
problem üzerindeki başarımı incelenmiştir. YAA’nın başarımı daha önceki
çalışmalarda probleme uygulanmış optimizasyon yöntemleri ile
karşılaştırılmıştır. Deneysel çalışmalar YAA’nın tasarım optimizasyon
problemini tutarlı ve düşük yakınsama oranıyla birlikte başarıyla çözme
yeteneğinin olduğunu göstermiştir.
Pregnancy outcomes in women of different body types in cervical insufficiency
Authors: Loseva Olga I. , Komissarova Elena N. , Karelina Natalya R. , Gaiducov Sergei N. 
Published: October 2018

The rate of preterm birth remains high and has no downward trend, despite the introduction of new technologies. Isthmic-cervical insufficiency is one of the most important causes of premature birth. At the same time, many issues related to the prediction and treatment of isthmic-cervical insufficiency remain open. There is now a sufficient number of studies showing the relationship between somatotype, course and outcome of the disease. At the same time, stu dies related to the study of somatotypes in obstetric pathology are not enough.
The aim of the work is to assess the outcomes of pregnancy in women with isthmic-cervical insufficiency, taking into account the type of physique.
Materials and methods. the course and outcomes of pregnancy in 164 women with cervical insufficiency were studied. A computer somatotropina by R.N. Dorokhov all the best for measured strength of the pelvic floor muscles using a device pelvic muscle trainer.
Conclusions. The most frequently CI was found in women with mesosomatic and micro mesosomatic somatotype. Women macromesosomatic and micromesosomatic body types revealed low levels of muscle strength of the pelvic floor and a higher percentage of premature births. In groups macrosomy, macromesosomatic, microsomal body types often use different methods of correction CI. At the same time, the highest percentage of surgical correction of CI was observed in patients with macrosomatic type of physique. In other patients with different somatotypes, a non-surgical correction method was used.
Función del profesional en enfermería en la atención del acoso escolar en niños, niñas y adolescentes
Authors: Alvarado  R. Herly Ruth , Córdoba  R. Diana Norella , Mesa A. Laura Valentia , Turmequé  S. Erika Vanessa , Álvarez  C. Leinis , Quintero  M. Laura , Narváez  B. Diana Elvira , Bastidas  C. Yadira , Bautista S. David 
Published: October 2018

Actualmente se ha incrementado y visualizado el fenómeno del acoso escolar o bullying(por su traducción al inglés); sin embargo, llama la atención que esta práctica ha
existido durante mucho tiempo, pero es hasta ahora donde se evidencian las consecuencias que genera en los niños, niñas y adolescentes que, según diversos estudios, puede generar suicidios en esta población. Diversas profesiones han profundizado en el tema; a pesar de ello, no se ha visto avance en el manejo y prevención del acoso y se ha incrementado el número de casos que llegan a instituciones de salud relacionados con los daños físicos y psicológicos que se ocasionan en el niño víctima de acoso escolar. Es un reto para enfermería poder abordar esta situación y plantear posibles estrategias de intervención para su manejo y prevención, no solo en la víctima y victimario sino también en la familia, escuelas e instituciones de salud en los diferentes niveles de atención, ya que cuenta con las herramientas para diseñar intervenciones en el manejo de la comunidad y del paciente institucionalizado.
Optical properties of (ZnTiO3)/Epoxy Nanocomposite Thin films
Authors: Alqaicy Warqaa Adnan , Abdullah Sawsan H. , Mustafa Falah I. , Kh.Ateia Khalid , M.Ibraheem Amnah 
Published: October 2018

Two layers of epoxy reinforced with nano- Zinc Tetanet (ZnTiO3) uniform thin films have been prepared using a spin coating technique on glass floors, dispersion and magnetic stirring techniques are used to prepare the nanocomposites, FTIR was employed to aid interpretation of results with a fixed thickness and proportions by weight (0Wt%,1Wt%,2Wt%,3Wt%,4Wt%) ZnTiO3additives.The optical characteristics were studied by measuring the transmittance and absorbance spectrometry as a function of the wavelength (200-1100) nanometers. The results of the transmittance were very high, and high transparency in infrared (IR) radiation was measured by the FTIR and UV-VIS measurements. The optical properties included the calculations of the energy gap; some optical constants were also carried out, which included absorption coefficient making it Suitable for applications of solar cells
The effect of hyaluronic acid gel on preventing post-surgical adhesions after laparoscopic surgery
Authors: Yildiz Alp 
Published: October 2018

Intraperitoneal adhesions are an important cause of postoperative intestinal obstruction, abdominal discomfort, and infertility. Despite careful attention to minimize tissue trauma and ensure hemostasis, pelvic surgery is associated with both de novo adhesion formation and reformation. In this study our aim is to investigate the efficacy of hyaluronic acid gel on preventing/healing postoperative adhesions.
124 women on reproductive age who underwent emergency laparoscopic surgery (appendicitis, gynecologic emergencies, trauma, hernias ) included in this retrospective study. 28 of these patients underwent second-look surgery in 14-30 days. 17 of patients were applied hyaluronic acid gel on the initial surgery (Group-1) and 11 of patients were not appiled (Group-2).
There were no signiﬁcant differences between the two groups for age and weight. The operating time was similar in the two groups. At follow-up, a signiﬁcantly (p<0.01) lower rate of postsurgical adhesions was observed in Group-1 in comparison with Group-2. The median rate of adhesions was signiﬁcantly (p<0.05) lower in patients treated with hyaluronic acid in respect to the group who treated surgery alone.
This study showed that hyaluronic acid treatment after laparospopy/laparotomy is a significantly effective and very cost-effective option for prevention and treatment of postoperative adhesions. We believe it is very important of usage hyaluronic acid especially on reproductive age women population in order to prevent the worsening effect of postsurgical adhesion on fertility.
İlk Şehirler ve Yazılı Medeniyete Geçiş
Authors: IŞIK Adem 
Published: October 2018

Yazı ilk defa MÖ
4. bin yılın sonlarında Mezopotamya’da ortaya çıkmıştır. Resim yazısı ile
başlamış zamanla ideografik yazı şekli ortaya çıkmıştır. İlk olarak çivi yazısı
sistemi ile ve Sümerce olarak başlamıştır. İnsanoğlu kentleri kurmadan önce Neolitik
dönem ile yerleşik hayata geçmiştir. Güneydoğu Toroslar’ın eteklerinde, ilk köy
yerleşimleri kurulmuştur. Ardından ilk kentler MÖ 4000’li yılların sonlarına doğru Güney
Mezopotamya’da ortaya çıkmıştır. Sümerler tarafından kurulduğu kabul edilen ilk
kentler, aynı zaman da siyasal olarak birer kent devletiydi. Site adı verilen,
bu kent devletlerine Ur, Uruk, Eridu, Lagaş, Kiş ve Larsa gibi devletleri örnek
verebiliriz. Harran, Babil, Kudüs ilk büyük kent örneklerini oluşturur. Mezopotamya’da
hukuk ve kanun yazma geleneği Sümerler ile başlamıştır. Bu gelenek ve kanun
yazma tekniği zamanla Mezopotamya’da yaşamış olan tüm toplumları
etkilemiştir. Urukagina
Kanunları, bilinen ilk
Sümerce hukuk metnidir. Hammurabi Yasaları ise MÖ 1760 yıllarında
Mezopotamya’da ortaya çıkan tarihin en eski ve en iyi bir şekilde korunmuş
yazılı kanunları arasındadır. Bu dönemden önce ortaya çıkan yasa koleksiyonları
arasında Ur kralı Ur-Namnu’nun kanun kitabı (MÖ 2050), Eşnunna tarafından
oluşturulan kanun kitabı (MÖ 1930) ve İsin’li Lipit-İştar’ın kanun kitabı (MÖ
1870) bulunmaktadır. Yazının bulunması uygarlığın, bugün geldiği noktaya
ulaşmasında atılmış en önemli adımdır.