bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mineralización de nitrógeno de rastrojo de vainica (Phaseolus vulgaris) en un suelo andisol tropical
Authors: Solórzano Quesada Dayana Melissa , Brenes Rojas Paola , Peña Wagner 
Published: December 2019

Introducción: La mineralización es un proceso esencial que mejora las propiedades físicas y químicas de los suelos mediante la recuperación de la actividad biológica y la fertilidad de los suelos, obteniendo principalmente nitrógeno mineral utilizado por las plantas. Objetivo: Determinar el aporte de nitrógeno de los rastrojos de vainica (Phaseolus vulgaris) durante un periodo de 30 días de mineralización en suelo andisol, en la zona de San Ramón, Alajuela, Costa Rica. Métodos: Realizamos un análisis químico (pH, acidez, Ca, Mg, K, P, Cu, Fe, Zn, Mn) en el suelo antes y después del experimento. A los 10, 20 y 30 días de la degradación del rastrojo se analizaron muestras. Resultados: El mayor aporte de nitrógeno fue a los 30 días con 3,4% del nitrógeno que contenían los rastrojos, representado un 79,07% del total de nitrógeno. Conclusiones: A los 30 días de mineralización se presenta la mayor actividad microbiana, mejor descomposición de los rastrojos, disponibilidad de nitrógeno y el mejor aprovechamiento de carbono.
Un análisis de la primera cita (Área Metropolitana de Buenos Aires, Argentina)
Authors: Palumbo Mariana 
Published: December 2019

en mujeres y varones cis heterosexuales adultos/as, de entre 35 y 50 años, que residen en el Área Metropolitana de Buenos Aires (AMBA), Argentina, en la actualidad (2015-2017). Para dicho fin, indago en los guiones sociales heteronormativos y románticos que orientan las interacciones, los consumos y las expectativas que aparecen, según el género de los actores.
Los escenarios de las citas están atravesados por actividades y objetos que implican un consumo hedonista. En las citas, los sujetos de clase media intentan ubicarse en lo que dura ese encuentro, signado por el consumo y la búsqueda de bienestar, por encima de su propia posición social.
Utilização de Contratos Futuros de Commodities como Forma de Otimizar Carteiras de Investimentos do Mercado Brasileiro
Authors: Pinheiro Marília Cordeiro , Zanon André Ricardo Moncaico , Dantas José Alves , Fernandes Bruno Vinícius Ramos 
Published: December 2019

Objetivo: Avaliar a eficácia da utilização de contratos futuros de commodities como mecanismo de otimização das carteiras de investimentos.Fundamento: O estudo apoia-se na teoria de diversificação do portfólio, com a premissa de que os investidores são avessos ao risco e com isso elaboram carteiras tangentes à fronteira de eficiência, com maior retorno esperado para determinado nível de risco.Método: Foram compostas carteiras com contratos futuros de commodities e elaboradas cinco estratégias de investimentos com e sem esses contratos, utilizando os retornos esperados e a matriz de covariância para calcular os pesos dos ativos nas carteiras. A análise contempla o período de 2011-2016 e os subperíodos de 2011-2013 e 2014-2016, caracterizados, respectivamente, por expansão e contração econômica.Resultados: Os testes empíricos revelaram que (i) os portfólios com contratos futuros oferecem potencial de diversificação para carteiras compostas majoritariamente pelo mercado de ações (ii) apenas carteiras com contratos vendidos de café tocaram a zona de eficiência, de forma que os contratos de boi e milho não mostraram evidências de contribuição para otimização. (iii) carteiras compostas majoritariamente pelo IFIX, IAM-B, dólar e CDI foram as composições mais eficientes devido a particularidades do mercado de capital brasileiro, como alta taxa de juros, ambiente inflacionário e depreciação cambial durante o período.Contribuições: Os resultados do estudo (i) fornecem perspectiva sobre o uso dos contratos futuros de commodities para reduzir ou não os riscos de portfólios de investimentos; (ii) destacam que esses resultados podem ser distintos em momentos de expansão ou retração econômica; (iii) corroboram estudos anteriores sobre o uso de contratos futuros de commodities para otimização de carteiras de ações, porém se diferenciando quando levada essa análise para ativos imobiliários e títulos de renda fixa.
A NARRATIVA JORNALÍSTICA SOBRE A VIOLÊNCIA SEXUAL CONTRA A MULHER NA FOLHA DE S. PAULO
Authors: Teixeira de FARIA Vivian , Silva SARAIVA Aléxia , PANKE Luciana 
Published: December 2019

Este trabalho analisa o discurso jornalístico da revista Tpm, para compreender como as representações de gênero são abordadas, debatendo a atuação do jornalismo nas discussões sobre gênero e corpo, na perspectiva dos estudos pós-estruturalistas. Para isso, faz uso da desconstrução, proposta por Jacques Derrida, para identificar os conceitos, os binarismos, as hierarquias, os padrões textuais e os paradoxos discursivos. Tpm dá continuidade à tradicional receita usada por publicações femininas brasileiras, que abordam um universo baseado em maternidade, casamento e condições corporais. A revista reproduz e amplifica uma violenta hierarquia entre gêneros, além de reafirmar uma política identitária patriarcal e heteronormativa.

Palavras-chave
Jornalismo; Gênero; Desconstrução; Trip Para Mulher (Tpm).
DEVENIR UN BOUDDHA: ANALYSE SÉMIOTIQUE DES VISUALISATIONS DANS LE BOUDDHISME TIBÉTAIN
Authors: Hébert Louis 
Published: December 2019

Cet article analyse certains aspects du bouddhisme Vajrayāna sous l’angle théorique des zones anthropiques de François Rastier, pour qui le niveau sémiotique de la pratique sociale peut s’articuler en trois zones anthropiques: l’identité, la proximale et la distale. Le premier correspond en particulier à l'individu, le second aux contreparties et le troisième est rempli d'objets manquants, imaginaires ou inconnus. Sans nuances péjoratives, l'auteur appelle fétiches les objets de la première frontière et les idoles à ceux de la seconde. Le corpus analysé est constitué principalement de textes de sādhana, dans lesquels le praticien est invité, au moyen de visualisations complexes, à se transformer progressivement, au cours de la session, en un être éclairé, un Bouddha, passant ainsi de pensée de la zone. identité anthropique de la zone distale par l'intermédiaire d'une divinité bouddhiste ayant le statut d'idole.
Este trabalho analisa alguns aspectos do budismo Vajrayāna sob a perspectiva teórica das zonas antrópicas de François Rastier, para quem, o nível semiótico da prática social pode ser articulado em três zonas antrópicas: a identitária, a proximal e a distal. A primeira corresponde, em particular, ao indivíduo, a segunda aos congêneres e a terceira é preenchida com objetos ausentes, imaginários ou desconhecidos. Sem nuances pejorativas, o autor chama fetiches aos objetos da primeira fronteira e ídolos aos da segunda. O corpus analisado consiste, principalmente, em textos do sādhana , onde o praticante é convidado, através de visualizações complexas, a ser transformado, progressivamente, durante a sessão, em um ser iluminado, um Buda, passando, assim, em pensamento, da zona antrópica de identidade para a zona distal, através da mediação de uma divindade budista que tem o status de ídolo.
Servive Quality on Education Institution: Satisfaction Index and IPA (Case Study on Accounting Department of State Polytechnic of Malang)
Authors: . Sumiadji , Handoyo Futuh , Setiati Fita 
Published: December 2019

The purpose of this study was to determine the level of student satisfaction towards the quality of service provided by the Accounting Department, State Polytechnic of Malang (Polinema), by comparing the actual service delivered by the institution to the one expected by the students. Respondents as samples were determined proportionally for each study program and class of as many as 100 students. The questionnaire was randomly given to respondents to obtain a response to service quality consisting of 5 (five) dimensions, namely tangible, reliability, responsiveness, assurance and empathy. Data analysis was descriptive analysis prosiding from descriping the data in term of the mean and frequency, and than measuring student satisfaction index and ending up with determining the service quality using importance-performance analysis (IPA). The results showed that most respondents were DIV Management Accounting study program students, of whom the majority were female. The frequency of the students response for the quality of the received service fell into the catagory of very satisfying, which means that, in general, the quality of service received by students was very satisfying. There were found two dimensions in quadrant A where two forms of service quality must be improved immediately, four dimensions in quadrant B where six forms of service quality must be maintained, and all dimensions in quadrant D where eight forms of service quality in the short term may be ignored.
Perencanaan Kebijakan Inventori Model Probabilistik Di CV. Bola Mas Pekanbaru
Authors: Anggraini Wresni 
Published: December 2019

CV. Bola Mas merupakan perusahaan yang bergerak di bidang vulkanisir ban. Permasalahan yang terjadi di perusahaan ini adalah sering terjadinya stock out bahan baku yang menyebabkan terjadinya keterlambatan proses produksi. Hal ini terjadi karena tidak konstannya permintaan konsumen dan inventory lead time. Tujuan penelitian ini adalah memberikan usulan kebijakan sistem persediaan dengan model probabilistik yang dapat meminimasi keterlambatan produksi dengan biaya yang optimal. Berdasarkan analisis ABC terdapat 2 jenis bahan baku ragi ban yang akan dikendalikan yaitu jenis KG 1000-20 dan LG 1000-20. Metode Trend Projection digunakan untuk meramalkan permintaan konsumen dan mengetahui jumlah kebutuhan bahan baku yang diperlukan dalam proses produksi. Setelah membandingkan total biaya persediaan yang dihasilkan dari model probabilistik metode P dan metode Q, maka diketahui metode Q adalah metode yang lebih optimal. Total ekspektasi biaya persediaan Rp. 2.702.151.080,-/tahun untuk ragi ban jenis KG 1000-20 dan Rp. 1.674.652.305,-/tahun untuk ragi ban jenis LG 1000-20 .
Analisa Program K3 di CV. Sispra Jaya Logam Dengan Konsep Traffic Light System
Authors: Permata Ekie Gilang 
Published: December 2019

CV. Sispra Jaya Logam merupakan perusahaan Swasta Nasional yang bergerak dibidang industri pengecoran dan permesinan yang didirikan pada tahun 1992. Dalam proses pengecoran dan permesinan CV. Sispra Jaya Logam mengandung potensi bahaya yang dapat menimbulkan kecelakaan kerja. Hal ini dapat dilihat dari beberapa data kecelakaan kerja yang terjadi dari tahun 2013 sampai tahun 2015 yaitu terjadi 34 kecelakaan. Oleh karena itu penting sekali adanya pencegahan kecelakaan kerja untuk mengurangi risiko kecelakaan sedini mungkin. Pencegahan kecelakaan kerja dapat dilakukan dengan melihat perilaku karyawan terhadap penerapan program K3 (keselamatan dan kesehatan kerja) dan meningkatkan implementasi program K3. Dalam Penelitian Tugas Akhir ini untuk pengukuran tingkat implementasi program K3 yaitu dengan menggunakan Metode Traffic Light System, kemudian dilakukan usulan pembuatan SOP sebagai bentuk implementasi untuk melihat perubahan sikap atau perilaku karyawan terhadap penerapan program K3. Hasil dari kedua analisa diatas dugunakan untuk melihat sejauh mana tingkat implementasi program K3 yang telah dilakukan dan melihat perubahan perilaku karyawan terhadap penerapan program K3.
ADOPSI DALAM PERSPEKTIF PEKERJAAN SOSIAL
Authors: Siregar Yolanda Triana , Santoso Meilanny Budiarti 
Published: December 2019

ABSTRAK Adopsi merupakan salah satu upaya yang dilakukan pasangan suami istri untuk dapat memiliki kehadiran sosok anak di keluarga mereka. Di Indonesia, proses pengajuan dan prosedur adopsi telah jelas diatur dalam beberapa undang-undang dan ketetapan pemerintah yang berlaku. Namun dalam pelaksanaannya, masih ada berbagai permasalahan adopsi yang terjadi di Indonesia, antara lain kurangnya pemahaman dan pengetahuan masyarakat akan adanya prosedur pelaksanaan adopsi yang sah secara hukum, tidak adanya data valid mengenai jumlah adopsi di Indonesia, dan masih terjadinya sengketa antara orang tua angkat dan orang tua kandung akibat prosedur adopsi yang dilakukan secara private adoption. Metode yang digunakan dalam penulisan artikel ini adalah dengan menggunakan metode studi literatur. Hasil dari kajian yang dilakukan adalah diperlukannya upaya peningkatan informasi mengenai adopsi kepada masyarakat melalui kemudahan aksesibilitas layanan adopsi di tiap otoritas lokal. Hal ini dapat dicapai melalui integrasi yang baik antara pemerintah, lembaga sosial anak, pengadilan, dan pekerja sosial. Selain itu, pelayanan adopsi yang diberikan harus dipastikan sampai pada tahap pengawasan, pendampingan, dan penguatan terhadap pengasuhan calon orang tua angkat untuk menjamin terpenuhinya kebutuhan dan kesejahteraan anak di masa mendatang. Kata Kunci: adopsi anak, pekerjaan sosial ABSTRACT Adoption is one of the efforts made by married couples to be able to have the presence of a child in their family. In Indonesia, the adoption procedures are clearly regulated in several laws and government regulations. But in its implementation, there are still various problems of adoption that occur, including a lack of knowledge in community regarding the legal adoption procedures, the absence of valid data of number adoptions in Indonesia, and the ongoing dispute between foster parents and biological parents due to adoption procedures carried out in private adoption. The method used in writing this article is a literature study method. The results of the study are the need for efforts to increase information on adoption to the community through the ease of accessibility of adoption services in each local authority. This can be achieved through good integration between the government, children's social institutions, courts, and social workers. In addition, the adoption services provided must be ensured to reach the stage of supervision, assistance, and strengthening of the care of prospective adoptive parents to ensure the fulfillment of the needs and welfare of children in the future. Keywords: child adoption, social work
Wartość biologiczna owoców kilku linii hodowlanych melona (Cucumis melo L.)
Authors: BUCZKOWSKA HALINA BARBARA 
Published: December 2019

Melon należy do warzyw o dużej wartości biologicznej oraz specyficznych walorach smakowych. Dobre plonowanie zapewniają zabiegi polepszające warunki uprawy oraz odpowiedni dobór odmian. Celem niniejszej pracy było określenie wartości biologicznej owoców kilku polskich linii F1 przynależnych do typu saccharinus, w uprawie ekologicznej na glebie ściółkowanej czarną folią PE, w południowo-wschodniej Polsce (51.36°N, 22.83°E). Doświadczenie przeprowadzono w latach 2015–2016. Rozsadę wysadzano w I dekadzie czerwca w rozstawie 1,20 × 0,5 m. Z uprawy linii F1 melona otrzymano plon owoców handlowych 1,88–2,28 kg·m–2. Linie te charakteryzowały się owocami o średnio małej masie (0,66–0,74 kg), które zawierały dużo karotenoidów, cukrów ogółem i redukujących, ekstraktu oraz składników mineralnych, zwłaszcza potasu i żelaza. Takie owoce mogą stanowić atrakcję dla konsumentów na rynku detalicznym warzyw.
Assessment of Shear Stresses from Shrinkage and Thermal Deformation in Wood-Concrete Bridge Beams
Authors: Furtak K. 
Published: December 2019

AbstractThe aim of the paper is to assess the values of shear (delaminating) stress in the composition plane between the concrete (RC) deck slab and wood girder from concrete shrinkage, and shrinkage and swelling of wood, as well as difference in temperature between the wood web and concrete slab.
Freeze-Proof Durability of Concrete Incorporating Recycled Coarse Aggregate
Authors: Deng Xianghui , Xue Liyuan , Wang Rui , Gao Xiaoyue 
Published: December 2019

AbstractThe recycle of the building and demolition waste could reduce project expenses and save natural resources as well as solve problem about environmental risks incurred during the disposal of building waste. In this study, waste C30 concrete is taken an experimental material. The mass loss, ultrasonic velocity, dynamic modulus of elasticity and cubic compressive strength of recycled coarse aggregate concrete whose coarse aggregate replacement percentage is 25%, 50%, 75%, and 100% are tested and compared with NAC when the cycles of freezing and thawing are 0, 25, 50, 75, 100, 125, 150, 175, and 200 times. The results show: (1) Generally, the loss of mass, ultrasonic velocity, dynamic modulus of elasticity and cubic compressive strength constantly increase with the growth of freezing and thawing cycles. (2) Compared with the recycled concrete of other replacement percentages, the RAC50 shows relatively close performance to NAC in mass loss, the change of dynamic modulus of elasticity and cubic compressive strength. (3) Performances of RAC25 specimens are better than the other RAC specimens for the ultrasonic wave velocity.
Investigating the Performance of Isolation Systems in Improving the Seismic Behavior of Urban Bridges. A Case Study on the Hesarak Bridge
Authors: Edalati Ali Akbar , Tahghighi Hossein 
Published: December 2019

AbstractThis paper investigates the influence of isolation systems on the seismic behavior of urban reinforce concrete bridge. The performance of the Hesarak Bridge constructed in Karaj city, Iran with two isolation systems; i.e. the existing elastomeric rubber bearing (ERB) and a proposed lead rubber bearing (LRB) is discussed. The numerical model was implemented in the well-known FEM software CSIBridge. The isolated bridge has been analyzed using nonlinear time history analysis method with seven pairs of earthquake records and the results are compared for the two isolation systems. The LRB isolators are shown to have superior seismic performance in comparison with the existing ERB systems based on the response evaluation including force on the isolator, pier base shear, deck acceleration, bending moment, pier displacement, and energy dissipation.
The Structure of the Optimal Control in the Problems of Strength Optimization of Steel Girders
Authors: Mikulski Leszek 
Published: December 2019

AbstractThe paper concerns a strength optimization of continuous beams with variable cross-section. The continuous beams are subjected to a dead weight and a useful load, the six (seven) combinations of loads were analyzed. Optimal design problems in structural mechanics can by mathematically formulated as optimal control tasks. To solve the above formulated optimization problems, the minimum principle was applied. The paper is an introductory and survey paper of the treatment of realistically modelled optimal control problems from application in the structural mechanics. Especially those problems are considered, which include different types of constraints. The optimization problem is reduced to the solution of multipoint boundary value problems (MPBVP) composed of differential equations. Dimension of MPBVP is usually a large number, what produces numerical difficulties. Optimal control theory does not give much information about the control structure. The correctness of the assumed control structure can be checked after obtaining the solution of the boundary problem.
Evaluation of the effect of a modified proprietary poultry feed on cholesterol excretion in laying birds
Authors: Ikese Chris Oche , Ubwa Simon Terver , Adoga Sunday Ogakwu , Audu Stephen Inegedu , Akor Michael 
Published: December 2019

Abstract
The effect of modified proprietary poultry feed on cholesterol excretion in laying birds was evaluated. The study sort to lower the cholesterol content of eggs at the point of their physiological formation via a modification of the proprietary feed fed to laying poultry birds. This was with a view to lower the net cholesterol content in their eggs, thereby lowering the cholesterol levels available in such eggs for intake upon consumption. A 20% rice bran modification of the proprietary feed was made. Animal subjects were divided into experimental and control groups and the mean total cholesterol in their faecal droppings where determined before and after varying their feeding programs. Whereas the experimental group was fed with the modified feed, the control group was maintained on the unmodified feed. Enzymatic colorimetric method was used for the determination of mean total cholesterol in the dried faecal droppings of each group of birds under investigation. The results showed that the mean total cholesterol excretion before and after the modified feed regimen were 5.97±0.16 mg/g and 9.99±0.47 mg/g respectively and were found to be significantly different when compared using a t-test at p > 0.05 and 49 degree of freedom The results also showed that the modified proprietary poultry feed increased total cholesterol excretion in the faecal droppings of laying birds fed with the modified feed by 67.3%, and this was found to be statistically significant at p > 0.05. Hence, a 20% rice-bran modification of the proprietary feed yields a modified feed with a proven potency in elevating total cholesterol excretion while producing no drastic deviation from the proximate composition of the unmodified proprietary feed and is thus likely to have no adverse effect on the productivity of laying birds.
Differences between anthropometric indicators and the impact force of taekwondo kicks performed with the dominant and non-dominant limb
Authors: Górski Michał , Orysiak Joanna 
Published: December 2019

Summary

Study aim: Taekwondo is known for its very dynamic sports fighting, in which the athletes perform strikes mainly with their lower limbs. The aim of the study was to compare the differences between the impact force of strikes performed with the dominant and non-dominant limbs and its correlation with anthropometric indicators.

Material and methods: Six elite Olympic taekwondo players took part in the research (20.0 ± 3.2 years, 185.0 ± 8.5 cm, 75.3 ± 10.9 kg). Body composition including body mass, percent of body fat (FATP), fat mass (FATM), fat-free mass (FFM) and muscle mass (MM) was determined by bioelectric impedance analysis. Maximal strike impact force (Fmax) and Fmax relative to FFM (Fmax · FFM−1) of roundhouse kick (dollyo chagi) and side kick (yop chagi) were measured using a dynamometric punching bag with an embedded accelerometer.

Results: We found significant differences between the dominant limb (DL) and non-dominant limb (NL) in anthropometric analysis: FATP was 10.52 ± 5.38 % and 11.32 ± 4.83 %, FFM was 11.87 ± 0.97 kg and 11.43 ± 1.09 kg, MM was 11.25 ± 0.92 kg and 10.82 ± 1.02 kg for DL and NL respectively. In dollyo chagi Fmax and Fmax · FFM−1 were higher for DL than NL and were 2733 ± 748 N and 2206 ± 778 N, 41.34 ± 8.16 N · kg−1 and 33.29 ± 9.02 N · kg–1 respectively. Yop chagi has a lower impact force compared to dollyo chagi. Fmax and Fmax · FFM−1 for DL and NL were 1763 ± 303 N and 1779 ± 372 N, 26.76 ± 3.07 N · kg−1 and 26.9 ± 3.57 N · kg–1 respectively. We found a significant correlation between Fmax in yop chagi and FFM (R = 0.83, p < 0.05).

Conclusions: Athletes should fight using a stance where the dominant limb is moved further away from the target in order to strike with maximum force.
Retirement, Predictive Factors of Retirement and Retirement Adjustment
Authors: Man Gabriela-Maria , Man Mihaela 
Published: December 2019

Abstract
Today, retirement is a process that many people have access to. This is due to the fact that global life expectancy has increased, and in many countries retirement, as a form of remuneration after years of work, is guaranteed by social security funds. For many members of society, the accessibility of retirement creates the need to know more about it. In this respect, the present article addresses the issue of defining retirement and lists the main predictors of retirement, or those factors related to the continuation of professional activity. At the same time, this article lists several factors, identified in the literature, as predictive factors of adjustment after retirement.