bluuebunny/crossref_metadata_2025 huggingface dataset:
İTFAİYECİ GİYSİLERİNİN KORUMA PERFORMANSININ ŞEKİL HAFIZALI YAY KULLANILARAK GELİŞTİRİLMESİ
Authors: ALTAŞ Sevda , YILMAZ Elif
Published: June 2019

Koruyucu
giysiler, giyen kişi ve potansiyel risk kaynağı arasında tampon görevi gören,
giyen kişinin hayatını korumaya yönelik olarak üretilen teknik giysilerdir.
Koruyucu giysiler giyen kişinin korunması hedeflenen tehlikeye göre çeşitli
gruplar altında incelenmektedir. Çalışanları yüksek sıcaklıktan korumak için
üretilen itfaiyeci giysisi, termal koruyucu giysiler grubunda yer almaktadır.
Termal koruyucu giysilerin kalın ve çok katmanlı olması gerekmekte olup, kumaş
katları arasında yer alan boşluk koruyucu giysinin koruma performansını önemli
ölçüde etkilemektedir. Bu çalışmada itfaiyeci giysilerinin termal koruma
özelliklerinin geliştirilmesi ve çalışmanın çıktılarının akıllı koruyucu
giysiler konusunda literatüre katkı sağlaması hedeflenmiştir. Bu amaçla kumaş
katmanları arasına şekil hafızalı yaylar entegre edilerek, giyside yaratılan
hava boşluğunun giysinin termal koruyucu özellikleri üzerindeki etkisi tespit
edilmiştir. Yapılan testler sonucunda, kumaş katmanları arasına yay
yerleştirilmesiyle oluşan hava boşluğu sayesinde kumaşların radyan ve konvektif
ısıya karşı dirençlerinin arttığı belirlenmiştir. Yay uzunluğu arttıkça, kumaş
katları arasındaki hava boşluğu artmakta ve buna bağlı olarak ikinci derece
yanık oluşumu için geçen süre uzamakta, giysinin koruma performansı
iyileşmektedir.
GEÇİCİ İSKÂN ALANLARININ SEÇİMİ İÇİN AHP TEMELLİ P-MEDYAN MODELİ: BURDUR ÖRNEĞİ
Authors: ŞAHİN Yusuf , HAZIRCI Murat
Published: June 2019

Afet sonrası evsiz kalan afetzedelerin
barınak ihtiyacı geçici iskân alanlarının kurulmasıyla giderilmektedir. Geçici
iskân alanlarının yerinin belirlenmesi afet hazırlık çalışmalarında karar
verilmesi gereken önemli bir problemdir. Bugüne kadar yapılan çalışmalarda
birçok ayrıntı eklenerek seçim işleminin uygulanabilirliği artırılmaya
çalışılmıştır. Bu çalışmada, Burdur ilinde meydana gelebilecek olası bir deprem
sonrasında kullanılacak geçici iskân alanlarının seçimi ve bu alanlara atanacak
mahallelerin belirlenmesi amaçlanmıştır. Çalışma iki aşamadan oluşmaktadır.
Birinci aşamada alternatif iskân alanlarının çeşitli kriterlere göre uygunluk
değerleri Analitik Hiyerarşi Prosesi ile belirlenmiştir. İkinci aşamada, Analitik
Hiyerarşi Prosesi ile belirlenen uygunluk değerleri p-medyan modelinde karar değişkeni katsayı olarak kullanılmış ve
GAMS programı ile yapılan çözümleme neticesinde her bir alana atanacak
mahalleler tespit edilmiştir. Sonuç olarak, dokuz adet aday alandan altı
tanesinin olası bir deprem sonrasında geçici iskân alanı olarak kullanılmasının
uygun olacağı belirlenmiştir.
KAPALI ALAN YAYA KONUMLANDIRMA SİSTEMİ
Authors: AYDIN Hakan , ERKMEN Burcu
Published: June 2019

Dış ortamlarda, kişinin konum
bilgisi GPS teknolojisi kullanılarak elde edilmektedir. Kapalı ortamlarda GPS
teknolojisi, uydularla yeterli seviyede bağlantı sağlayamadığından dolayı
verimli olarak kullanılamamaktadır. İç ortamlarda yayaların konum bilgisi elde
etmek için; kameralar, infrared, radyo frekansları (Bluetooth, UWB), ultrasonik
sensör, hücresel haberleşme metotları, hareket sensörleri(ivmeölçer, jiroskop)
kullanılmaktadır. Bu çalışmada, kapalı ortamda hareket sensör kartı (ROZAR IMU
M0) kullanılarak jiroskop ve ivme sensörlerinden elde edilen veriler SD kart’a
kaydedilmiştir.  Ayrıca kapalı ortamlarda
konum belirlemede sensörlerden kaynaklı hataları azaltmak için hız sıfırlama
algoritması (ZUPT) kullanılmıştır. Doğru eşik değeri seçilerek, yaya konumunu
görselleştirmeye yönelik GUI tasarlanmıştır.
DAĞITIM ŞEBEKESİ GERİLİM KONFİGÜRASYONUNUN KARIŞIK TAMSAYI LİNEER PROGRAMLAMA ALGORİTMASI İLE ENERJİ MALİYETİ YÖNÜNDEN ARAŞTIRILMASI
Authors: AKBULUT Leyla , TEZCAN Süleyman Sungur , ÇOŞGUN Ahmet
Published: June 2019

Bu
makalede, farklı gerilim seviyelerinde çok kademeli dağıtım faaliyeti sürdüren
gerçek bir elektrik dağıtım şebekesinin artan enerji ihtiyacını karşılamak
amacıyla yeniden planlanması enerji maliyeti açısından analiz edilmiştir. Analiz
çalışmasında optimum şebeke tasarımını elde etmek amacıyla fiziksel ve
elektriksel koşullar göz önünde bulundurularak ihtiyaç duyulan transformatör
güçlerini ve sayılarını tespit ederek minimum maliyeti belirleyen bir
minimizasyon fonksiyonu oluşturulmuştur. Oluşturulan fonksiyon belirlenen kısıt
şartları içerisinde MATLAB yardımıyla karışık tamsayı programlama
algoritmasından yararlanılarak çözümlenmiştir. Analiz sonuçlarından yararlanılarak,
ilgili şebekede üst seviyeli tek kademeli dağıtıma geçilmesi ve gerilim
seviyesinin mevcut durumda bırakılarak şebekenin yeniden tasarlanması durumları
mali açıdan karşılaştırılmıştır.
İNSANSIZ HAVA ARAÇLARI KULLANILARAK SÜLEYMAN DEMİREL ÜNİVERSİTESİ YERLEŞKESİNİN YÜKSEK ÇÖZÜNÜRLÜKLÜ ORTOFOTO HARİTASININ HAZIRLANMASI
Authors: ŞENER Erhan
Published: June 2019

Günümüzün en önemli yenilikçi
teknolojilerinden olan insansız hava araçlarının (İHA) kullanımı son yıllarda
oldukça yaygınlaşmıştır. Ayrıca, İHA fotogrametrisinin gelişmesiyle birlikte
insansız hava araçları kullanılarak elde edilen veriler birçok mühendislik
projesinde kullanılmaktadır. Faydalı yük taşıma kapasiteleri ile uçuş
sürelerinin de artmasıyla birlikte gelecekte de hayatımızın hemen her alanında
kullanımlarının artacağı öngörülmektedir. Bu çalışma kapsamında Süleyman Demirel Üniversitesinin Yerleşkesinin yaklaşık 4,5km2’lik
bir alanında İnsansız Hava Aracı ile otonom uçuşlar yapılarak 485 adet hava fotoğrafı
çekilmiştir. Sözkonusu hava fotoğrafları yersel çalışmalar ile birlikte fotogrametrik
olarak değerlendirilerek yerleşkeye ait yüksek
çözünürlüğe sahip ortofoto haritası üretilmiştir. Aynı zamanda detaylı nokta
bulutu ve sayısal arazi modeli ile birlikte düzensiz üçgenler ağı kullanılarak
yerleşkeye ait mesh yapısında 3 boyutlu katı model elde edilmiştir.
The Construction of Hyper-Reality of Advertisement in Consumption Culture
Authors: HUANG Yan
Published: June 2019

In the light of Baudrillard’s theory on consumption (symbol, simulation and simulacra, hyper-reality), this thesis discusses a specific point in the process of goods circulation: creating a consumption market by constructing a hyper-reality in advertisement. On the one side, consumption and consumerism are introduced. In contemporary society consumption has already become a lifestyle. Consumerism has been internalized as a kind of social logic. On the other side, modern consumption takes symbols as the presentation of consuming. Symbol value substitutes subject value. Symbol appears; subject disappears. The reality is deconstructed. Hyper-reality is constructed. Finally, hyper-realistic advertisement is the driving force of the consumer society. Advertisement constructs a kind of hyper-realistic consumption cultural, which finally is rationalized as a general collective consciousness.
Gestión del agua subterránea en los acuíferos de la cuenca del río Ayuquila-Armería en Jalisco y Colima, México
Authors: Hernández Juárez Rodrigo Alejandro , Martínez Rivera Luis Manuel , Peñuela-Arévalo Liliana Andrea , Rivera-Reyes Samuel
Published: June 2019

El objetivo de este artículo es analizar el papel de las concesiones de agua subterránea inscritas en el Registro Público de Derechos de Agua, como instrumento de planeación para el agua subterránea en la cuenca del río Ayuquila-Armería. Se utilizó una base de datos de dicho instrumento, con los registros de 1994 a 2015, para examinar el uso y el volumen de agua consumido en ese lapso en las concesiones otorgadas. A partir de 2009 hubo un incremento en estas variables y una disminución acelerada de la disponibilidad de agua en los acuíferos, por lo que algunos se consideraron “sobreexplotados”. Se concluye que la delimitación administrativa de los acuíferos no contribuye a entender la dinámica geohidrológica, y que dicho instrumento no está funcionando para la planeación y el control, por lo que es necesario revisar la gestión actual del agua subterránea, y promover un cambio hacia una visión integral de ella, de acuerdo con la teoría de los sistemas de flujo.
Polivalencia en elecciones, fin del dominio del prd en la Ciudad de México
Authors: Arrieta Ceniceros Lorenzo , Hernández Gutiérrez Luis Rubén
Published: June 2019

En las elecciones del año 2015, el Partido de la Revolución Democrática (prd) perdió el predominio que ostentaba en la Ciudad de México. Este fenómeno se explica a partir del concepto de polivalencia electoral, el cual hace referencia a los factores de mayor importancia que determinan los resultados electorales. En este artículo sostenemos que la ineficaz acción de gobierno, las pugnas internas por el reparto de candidaturas, la aparición del morena y los errores cometidos durante las campañas políticas, provocaron que el prd perdiera el poder
Memoria, identidad y violencia: procesos de subjetivación en relación a Ciudadanía y Derechos Humanos
Authors: Orejudo Pedrosa Juan Carlos , Rubio Hernansáez Luis , Moya Vela Jesús
Published: June 2019

La memoria individual y colectiva constituye un punto de referencia crucial para interpretar el presente en la formación de identidades políticas y culturales. La interrelación simbólica entre memoria, identidad y violencia, nos introduce en el debate moderno en torno a la ciudadanía y los derechos humanos. En este artículo nos centraremos en la violación de los derechos humanos en México y Latinoamérica, lo cual nos permitirá determinar el papel de la memoria en
la construcción de una ciudadanía comprometida, concretamente, con respecto al cambio de administración en Estados Unidos
Nociones y debates sobre lo público en las reflexiones de Laclau, Mouffe y Rancière
Authors: López Matías David
Published: June 2019

Este artículo indaga en las nociones de política y lo político, presentes en las reflexiones de Laclau, Mouffe y Rancière, para analizar cómo entra en juego la dimensión de lo público. Las preguntas guía son: ¿De qué modo aparece lo público en los análisis y concepciones de estos autores? ¿Cómo se articula con los conceptos y argumentos sobre la política y lo político? Se considera que las apropiaciones de esas nociones constituyen una relación tensa, compleja y,
a su vez, fundamental para el análisis de la política contemporánea, los procesos sociales y las experiencias colectivas que buscan disputar o trastocar el orden social
EXACT SOLUTION FOR FLAT SCALE-INVARIANT COSMOLOGY
Authors: Jesus J. F.
Published: June 2019

An exact solution for the spatially flat scale-invariant cosmology, recently proposed by Maeder (2017a) is deduced. No deviation from the numerical solution was detected. The exact solution yields transparency for the dynamical equations, and faster cosmological constraints may be performed.
EXTENSIVE PHOTOMETRY OF V1838 AQL DURING THE 2013 SUPEROUTBURST
Authors: Echevarría J. , de Miguel E. , Hernández Santisteban J. V. , Michel R. , Costero R. , Sánchez L. J. , Ruelas-Mayorga A. , Olivares J. , González-Buitrago D. , Jones J. L. , Oskanen A. , Goff W. , Ulowetz J. , Bolt G. , Sabo R. , Hambsch F.-J. , Slauson D. , Stein W.
Published: June 2019

We present an in-depth photometric study of the 2013 superoutburst of the recently discovered cataclysmic variable V1838 Aql and subsequent photometry near its quiescent state. A careful examination of the development of the superhumps is presented. Our best determination of the orbital period is Porb = 0.05698(9) days, based on the periodicity of early superhumps. Comparing the superhump periods at stages A and B with the early superhump value we derive a period excess of ǫ = 0.024(2) and a mass ratio of q = 0.10(1). We suggest that V1838 Aql is approaching the orbital period minimum and thus has a low-mass star as a donor instead of a substellar object.
ASYMMETRIC SHAPES OF RADIO RECOMBINATION LINES FROM IONIZED STELLAR WINDS
Authors: Ignace R.
Published: June 2019

Recombination line profile shapes are derived for ionized spherical stellar winds at radio wavelengths. It is assumed that the wind is optically thick owing to free-free opacity. Emission lines of arbitrary optical depth are obtained assuming that the free-free photosphere forms in the outer, constant expansion portion of the wind. Previous works have derived analytic results for isothermal winds when the line and continuum source functions are equal. Here, semi-analytic results are derived for unequal source functions to reveal that line shapes can be asymmetric about line center. A parameter study is presented and applications discussed.
MULTIWAVELENGTH OBSERVATIONS OF MASTER OT 075353.88+174907.6: A LIKELY SUPEROUTBURST OF A LONG PERIOD DWARF NOVA SYSTEM
Authors: Parikh A. S. , Hernández Santisteban J. V. , Wijnands R. , Page D.
Published: June 2019

MASTER OT 075353.88+174907.6 was a blue optical transient reported by the MASTER-Net project on 2017 Oct 31. We carried out multiwavelength followup observations of this source during its 2017 outburst using Swift and RATIR. The source was found to be ∼>4.4 mag above its quiescent level during the peak of the outburst and the outburst lasted ∼>19 days. Our observations suggest that it was a superoutburst of a long period U Geminorum type dwarf nova system. The spectral energy distribution during the initial slow decay phase of the outburst was consistent with a disk-dominated spectrum (with spectral indices Γ≈1.5–2.3). Afterwards, the UV flux decreased slowlier than the optical and the spectral energy distribution was very steep with indices Γ≈3.7±0.7. This slow UV decay may be the emission from a cooling white dwarf heated during the outburst. No X-ray emission was detected from the source since it is likely located at a large distance >2.3 kpc.
SELECTION EFFECTS AND STRUCTURAL SYMMETRIES IN THE ORIENTATION BASED UNIFIED SCHEME
Authors: Onuchukwu C. C. , Ubachukwu A. A.
Published: June 2019

Using the projected linear size, (D) as an orientation parameter, the armlength ratio, (Q) and the lobe-luminosity ratio, (R) as asymmetry parameters, we test the FR-II galaxies (Gs) and radio-loud quasar (Qs) unification scheme. Using the median values of our binned sample, our results, generally indicate that the D of the radio sources are smaller at higher redshifts z and at larger Q values, with the D of Qs smaller than those of Gs across all Q, z and R bins. Also, the D of Gs appear smaller for lower values of Q, if R ≤ 1.0 but become larger at higher values of Q if R > 1.0. For Qs, the D decreases with increasing Q, R and z. These results imply that the beaming effect is more important in Qs than in Gs. The D − R regression analyses for different Q and z subsamples suggest the importance of factors other than beaming and orientation in the interpretation of the evolution of these radio sources.
استخدام وسيلة الأوراق الممزقة لترقية كفاءة الطلبة فى تركيب الجمل المفيدة بمعهد باب النجاح العصري بندا أتشيه
Authors: Muslim Buhori , Nurfahmi Nurfahmi
Published: June 2019

قد إختار الباحثان هذا الموضوع لأن كثير من الطلبة بمعهد باب النجاح عجزوا عن تركيب الجملة المفيدة. يهدف هذا البحث إلى التعرف على إجراء وسيلة الأوراق الممزقة  لترقية كفاءة الطلبة فى تركيب الجمل المفيدة، والتعرف على فعالية استخدام وسيلة الأوراق الممزقة لترقية كفاءة الطلبة فى تركيب الجمل المفيدة، والتعرف على استجابة الطلبة في تعلم تركيب الجمل المفيدة بهذه الوسيلة. وفي هذا البحث تجري الباحثة ببحثها بالمنهج التجريبية بنوع One Group Pre-test Post-test Design. وأما نتائج هذا البحث هو أن استخدام وسيلة الأوراق الممزقة  يكون فعالا لترقية كفاءة الطلبة فى  تركيب الجمل المفيدة. والدليل على هذا أن نتيجة ت الحساب (ttest) أكبر من النتيجة ت الجدول (ttable) أو (2,14 <19,16> 2,98). واستجابة الطلبة في تعلم تركيب الجمل المفيدة بوسيلة الأوراق الممزقة ممتازة. حيث حصلت الباحثة على نتيجة ملاحظة أنشطة الطلاب P = 81,25 ٪ تدل على أنها وقعت ما بين حد 81 – 100 ٪ بتقدير ممتاز.
MTs Darul Hikmah Aceh Besar بالكمبيوتر في مهارة القراءة والكتابة بـ "Menyusun Teks" تطوير اللعب
Authors: Mahmud Salami , Rosmalita Rosmalita
Published: June 2019

إن عملية التعليم  في  MTs Darul Hikmah Aceh Besarكانت تقام بطريقة التركيز في دور المعلم. يقرأ المدرس النص القراءة من الكتاب المقرر ويترجمها كلمة فكلمة ولم يعط الفرصة لطلبة بأن يشتركوا في قراءة النص. وهم لابد أن ينظروا إلى الكتاب المقرر. ومن أجل ذلك يملّ الطلبة  عند عملية التعليم والتعلم، ويتمثل هذا في التحادث والتهامس وعدم الاهتمام بقراءة المدرس وترجمتها. بعدما قراءة النص والشرح بترجمتها يطلب من الطلبة أن يكتبوا ويترجموا فقرة أخيرة من النص العربي, ولكنهم لم يفهموا فيشتغلوا بإلقاء السؤال عن المفردات أو العبارات على المدرس مما قد بينها المدرس. وتهدف كتابة هذه الرسالة: للتعرف على الخطوات التي مرت بها في تطوير وإنتاج اللعب "Menyusun Teks" بالكمبيوتر وللتعرف على استخدام اللعب "Menyusun Teks" بالكمبيوتر في ترقية قدرة الطلبة على مهارة القراءة والكتابة بـ MTs Darul Hikmah Aceh Besar. أما منهج البحث المستعمل في هذه الرسالة فهو بحث تطويري (R&D) . والمجتمع من هذا البحث هو جميع الطلبة بـ MTs Darul Hikmah Aceh Besar. وأخذت الباحثة للعينة في الفصل الثاني وعددهم 24 طالبة. وأما نتيجة هذا البحث فهو إن لعب "Menyusun Teks" بالكمبيوتر في مهارة القراءة والكتابة فعال في ترقية قدرة الطلبة بـ MTs Darul Hikmah Aceh Besar
Aceh Barat Daya 4 لترقية قدرة الطلبة على المفردات بالمدرسة المتوسطة الحكومية الإسلامية Two Stay Two Stray استخدام أسلوب
Authors: Muzaffar Asyraf , Mahmud Salami , Ulva Salvina
Published: June 2019

كانت المفردات عنصرا مهما في كفاءة اللغة العربية وسيطرتها لها أهمية كبيرة في  تعليم اللغة العربية. وكانت اللغة العربية لها أربع مهارات وهي مهارة الاستماع ومهارة الكلام ومهارة القراءة ومهارة الكتابة. وتعليم كل المهارت يتعلق بتعليم المفردات. وتعليم المفردات مطلب أساسي من مطالب تعليم اللغة العربية. وكانت لطلبة المدرسة المتوسطة الحكومية الإسلامية 4Aceh Barat Daya مشكلات فيها حبث أن بعض الطلبة لم يسيطوا عليها جيدا ولم يستطيعوا أن يستخدموها في الممارسة. ولذالك، اراد الباحثون أن يبحثوا ويجربوا أسلوب Two Stay Two Stray في تعليم المفردات فيها. وأما أهداف هذا البحث هي التعرف على استجابة الطلبة في التعلم باستخدام أسلوبTwo Stay Two Strayوالتعرف على فعالية أسلوب Two Stay Two Strayلترقية قدرتهم على المفردات. والمنهج المستعمل في هذا البحث هو البحث بتصميم شبه تجربي (quasi experimental design)، وطريقة تحليل البيانات باستعمال برنامج spss 20,0باختبار المتجانس (uji homogenitas)، واختبار الطبيعي(Uji Normalitas)، اختبار الفروض (uji t- independent sampel test. ونتائج البحث هي أن استخدام أسلوب Two Stay Two Strayيكون فعالا لترقية فدرة الطلبةعلىالمفردات واستجابة الطلبة على أسلوب Two Stay Two Strayفي تعليم المفردات ممتعةوفعالا للسيطرة على المفردات الكثيرة وممارستها في الكلام.
Stable carbon and nitrogen isotope ratios of surface food residues in pre-Columbian ceramics from the southern Pacific of Costa Rica as evidence of prehistoric human diets
Authors: Sánchez P. Maureen , Horn Sally P. , Lane Chad Steven
Published: June 2019

Introduction: to understand and interpret the consumption of plants and animals by humans in the past requires the investigation of different lines of evidence. Identifiable macroscopic remains of plants and animals, for example seeds and bones, are frequently found at archaeological sites and provide key data on food resources. Their analysis is complemented by the study of pollen grains or phytoliths of cultivated plants within archaeological horizons or in sediment cores recovered from lakes and wetlands near archaeological sites. Another important source of information on human diets in the past consists of food residues preserved in or on artefacts excavated from archaeological sites. Objective: to examine food residues in archaeological pottery from coastal and interior sites in the southern Pacific region of Costa Rica. Methods: we focus on isotopic analysis of carbonized food residues preserved on the inner surfaces of ceramic pots, plates, and other ceramic pieces from archaeological excavations in the intermediate zone (elevations 500-1500m) and coastal zone of the southern Pacific region of Costa Rica. Isotopic analysis of surface food residues on pottery relies on the fact that stable isotopes of carbon (12C and 13C) and nitrogen (14N and 15N) in foods differ based on the photosynthetic pathway of plants and on trophic level. Results: in our analysis of material from twelve sites we found evidence of diets with high amounts of C4 plants (likely maize), legumes, herbivores, and mixtures, but we did not find robust evidence of food residues with isotopic signatures characteristic of reef animals and mollusks, even though some sites are shell mounds. Conclusion: our research represents one of the first studies of surface food residues from Costa Rican pottery, and indicates the potential for studies of this type to strengthen understanding of indigenous subsistence patterns through time and across Costa Rican archaeological regions.
Creencias en salud en una población militar joven, en relación con el tabaquismo
Authors: Castro Laura Elizabeth , Garcia Muñoz Ana Isabel , Lozada Gutierrez Edson Camilo , Cubides Amezquita Jenner Rodrigo , Calderon Molina Laura Tatiana
Published: June 2019

En la población militar, el consumo de tabaco está asociado con la edad, el estrés, la separación familiar y la presión de grupo. Aplicamos una encuesta a 29 cadetes colombianos cuya edad promedio era de 22 años. Asocian fumar con autoconfianza, insomnio, mejor digestión y placer; así como con cáncer, tos, irritación de garganta, enfermedades pulmonares y daño cerebral. Sin embargo, el 42% ha fumado y consume de 1 a 5 cigarrillos al día.
Composición y riqueza de avifauna en cuatro tipos de cobertura vegetal de San Ramón, Costa Rica
Authors: Araya Céspedes Osvaldo , Carvajal Sanchéz José Pablo
Published: June 2019

Introducción: las aves silvestres son de mucha importancia para el ser humano como controladores biológicos, dispersores de semilla entre otros. Estas a su vez se pueden ver afectadas por los cambios en la estructura del paisaje. Objetivo: analizar la composición y riqueza de avifauna en cuatro tipos de cobertura vegetal en una comunidad del distrito de Peñas Blancas, San Ramón, Costa Rica entre mayo y agosto del 2016. Métodos: el muestreo de aves fue realizado mediante puntos de conteo con radio fijo de 25m y una distancia entre puntos de 75 m con 10 minutos de observación por punto. Resultados: registramos 548 individuos pertenecientes a 27 familias y 75 especies. Las 4 especies más abundantes fueron: Ramphocelus passerinii, Turdus grayi, Crotophaga sulcirostris y Troglodytes aedon. La riqueza y abundancia puntual fue mayor en pasto natural de alta cobertura vegetal y en bosque ribereño que en cercas vivas y pastos de baja cobertura vegetal. Los hábitats que tuvieron mayor similitud fueron bosque ribereño y cercas vivas, además el 39% de las especies estuvo representada por el gremio insectívoro, seguido por frugívoro con 23%, omnívoro con 17%, carnívoro con 16%, granívoro con 4% y nectarívoro con 1% y cinco de las especies encontradas son dependientes de bosque y seis de ellas indicadoras. Conclusión: finalmente, cabe destacar que las áreas con mayor cobertura vegetal, disponibilidad de alimento y zonas de refugio fueron las que tuvieron mayor cantidad de especies y los sitios de mayor similitud están determinados por la conectividad entre los mismos.
Variación en composición y estructura de la vegetación leñosa de un bosque húmedo premontano transición seca, debido a la actividad agrícola y ganadera
Authors: Bonilla Villalobos Verónica
Published: June 2019

la caracterización de la vegetación a largo plazo en los bosques húmedos premontanos transición seca de Costa Rica ha sido muy escasa. Objetivo: realizar un estudio comparando dos sitios, uno más conservado y el otro muy degradado. Métodos: analicé la estructura y la composición de la vegetación leñosa de dos remanentes de bosque húmedo premontano transición seca, en Los Llanos de La Garita (sitio más alterado) y Bosque Andrómeda (sitio más conservado) en Atenas, Costa Rica, durante aproximadamente 10 meses comprendidos entre 2015-2016. En cada sitio establecí 20 parcelas circulares (500m2) para el muestreo de los árboles con DAP>10cm. Resultados: identifiqué para Andrómeda, 29 familias, 51 especies y 305 individuos. Por su parte, en Los Llanos, encontré 16 familias, 18 especies y 76 individuos. Las especies más abundantes en Andrómeda fueron Guazuma ulmiforia, Anacardium excelsum y Calycophyllum candidissimum; mientras que en Los Llanos fueron Enterolobium cyclocarpum, Bursera simaruba y Andira inermis; las especies de mayor frecuencia en Andrómeda fueron Guazuma ulmiforia, Anacardium excelsum y Cedrela odorata y en Los Llanos Enterolobium cyclocarpum, Bursera simaruba y Tabebuia rosea; en cuanto a la dominancia Cedrela odorata, Pseudobombax septenatum y Enterolobium cyclocarpum fueron las especies presentes en el sitio más conservado y Enterolobium cyclocarpum y Ficus Guazuma ulmifolia fueron las especies en el sitio más alterado. En cuanto a los índices de biodiversidad encontré que Andrómeda muestra una diversidad de H=3,22 y Los Llanos fue de H=2,50. Andrómeda mostró mayor dominancia DS=0,95 que Los Llanos con DS=0,89. Ambos sitios mostraron una alta equitatividad de especies J=0.86, también presentaron casi los mismos valores de similitud de especies Bray-Curtis=0,81 y Jaccard=0,89. Estimé que la riqueza de especies según los estimadores no paramétricos (ACE, Chao 1, Chao 2, Jackknife 1, Bootstrap) para Andrómeda está entre 59-111 especies, mientras que para el otro sitio fue de 20 a 28 especies. Conclusión: este estudio mostró una composición florística similar entre ambos sitios, lo que facilitará los procesos de restauración ecológica; sin embargo, la estructura horizontal es diferente.
Groundwater management in an agro-industrial school in Argentina
Authors: Vuksinic Evelyn , Rodríguez Corina Iris , Tabera Anahí , Cifuentes Marisol Roxana , Díaz Adriana Alejandra , Cisneros Basualdo Nicolás Eloy , Ruiz de Galarreta Alejandro
Published: June 2019

Introduction: water management is of paramount importance in productive activities, such as agriculture, livestock and industry, due to its direct impact on both the quality and the availability of this valuable resource. However, groundwater management is usually addressed under a non-integrated approach which originates a high risk of pollution as well as water shortage for food and animal production in the agro-industrial systems. Objective: to analyze water quality for human consumption, hydrogeological features, water demand, and discharge of liquid effluents on soil and surface water. Methods: we carried out a diagnostics of water management in an agro-industrial school located in Buenos Aires province, Argentina. The production system includes a bovine dairy farm; calf, pork and rabbit breeding; beekeeping; poultry farming; dairy and cheese factory; agriculture and fodder area; processing of meat, and orchard. To perform the analysis, we calculated water requirements for six productive activities and evaluated the hydrological features of the area through water table measurements considering the groundwater flow sense. We analyzed the groundwater quality seasonally during a period of a year through five water samples. We considered microbiological and physicochemical parameters and they were compared with recommended level by law, and we carried out the monitoring of residual chlorine during a week. Also, we evaluated the generation and disposal of effluents. Results: water was suitable for human consumption, although we detected variations in its quality indicators. We determined that the main issues hindering an integrated water management were the diversified production developed with high volumes of water demanded, the water quality deterioration by the agro-industrial productions carried out, and the hydrogeological features of the area. In addition, we measured a high water demand which is in conflict with groundwater shortage and the complex hydrological conditions of extraction in the studied area. Conclusion: this study demonstrated the usefulness of applying effective strategies to act on environmental-priority subjects and to develop good practices regarding water management from an integrated approach.
Como obtener el máximo beneficio de los fondos de investigación científica: el ejemplo de Costa Rica (logros y retos FEES 2006-2016)
Authors: Brenes Bonilla Lizette , Monge-Nájera Julián
Published: June 2019

Introducción: Costa Rica es el país con mayor desarrollo científico en América Central. En 2005, las universidades públicas costarricenses, coordinadas mediante un Consejo Nacional de Rectores decidieron que, en lugar de trabajar aisladamente, reunirían recursos para financiar investigaciones conjuntas para resolver problemas ambientales y apoyar a grupos en desventaja, como mujeres y minorías. Objetivo: examinar los resultados de la primera década del programa, con énfasis en quién recibió los fondos y cuáles productos se generaron. Métodos: encuestamos a los coordinadores de proyectos y obtuvimos respuestas de aproximadamente la mitad de ellos (N = 71 proyectos). Resultados: el 60% de los fondos de investigación beneficiaron a poblaciones desfavorecidas (es decir, las de las zonas costeras y fronterizas) y el 54% de los investigadores que recibieron fondos eran mujeres. Los 71 proyectos que completaron la encuesta produjeron 1388 artículos científicos y 883 productos prácticos como talleres comunitarios y nuevas empresas (estimación: más de 2700 artículos y 1700 productos prácticos en total). Conclusión: estos proyectos han sido altamente productivos: han beneficiado a mujeres y comunidades marginadas; han llevado a una colaboración duradera entre investigadores de diferentes instituciones, y son un ejemplo para otros países pequeños con fondos de investigación limitados.
2006-2015 YILLARI ARASINDA BULGARİSTAN’DA ÇEVRİLEN ROMANLARA KISA BİR BAKIŞ
Authors: ŞEN TILKI Ayra
Published: June 2019

Türkiye
ve Bulgaristan uzun yıllar boyunca birbiriyle komşu olmuş ve ortak tarihe sahip
olan iki ülkedir. Kültürel, siyasal ve edebi açıdan ortak özelliklere sahip
olan bu iki ülkenin edebiyat dünyasında geçenler hakkında kapsamlı bir
araştırma yapılması ihtiyacı ortaya çıkmıştır. Kuşkusuz bu süreçte en çok
çeviri yapılan tür olan roman üzerinde araştırma yapmak daha isabetli
olacaktır.2006 ile 2015 yılları arasında araştırmış olduğumuz zaman aralığı tek
bir dönemi, sadece bir zaman kesitini kapsamaktadır. Belirtilen yıllarda
seçilmiş ve çevrilmiş romanlar hakkında değerlendirmeler yapılmıştır.  Bu yıllar arasında çevrilen romanların sayısı
belirlenmiş, konu ve tür olarak inceleme yapılmıştır, bu konuya daha önceden de
değinilmiş olmasına rağmen, ayrıntılı ve kapsamlı bir inceleme bugüne kadar
yapılmamıştır. Bu araştırmada Türk Edebiyatı’nın Bulgaristan’daki izleri
kapsamlı olarak araştırılmış ve kronolojik verilerle ortaya konulmuştur.
Model Pembelajaran Kooperatif Co-Op Co-Op dengan Pendekatan Predict-Observe-Explain untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis
Authors: Maryanti Sri
Published: June 2019

The purpose of this study was to find our whether cooperative learning model Co-Op Co-Op approach POE (predict-observe-explain) can increase the ability troubleshooting mathematical students. This research is a research Quasi Eksperimental Design and design researchers used  in this study is the design of the control group pretest-postest, with a technique random class. Hypothesis test used in this research is t-test. From the results of statistical tests showed that the value of t_hitung based on the calculation obtained t_hitung = 5.500869, and t_tabel = 2.001 so that t_hitung> t_tabel. So based on these calculation can be concluded that the model cooperative learning CO-Op Co-Op approach POE (predict-observe-explain) can increase the ability troubleshooting mathematical students.
Media Pembelajaran Matematika Bilingual Berbasis Sparkol Videoscribe
Authors: Rahmatika Dwi Fadila , Ratnasari Nining
Published: June 2019

This research and development aims to determine the feasibility, attractiveness of student responses, and the effectiveness of the development of videoscribe sparkol-based bilingual learning media. The type of research in this development is (Research and Development). The development model used is the ADDIE model with five research steps; Analysis (Analyze), planning (Design), development (Development), Implementation (Implementation), and Evaluation (Evaluation). Data collection techniques using questionnaire sheets and tests. The instrument used was in the form of a questionnaire to determine the feasibility and attractiveness of students' responses, as well as tests to determine the effectiveness of the products developed. Data analysis techniques used are quantitative descriptive and qualitative descriptive. Obtained the results of the average feasibility test for learning media by media experts, material experts, and linguists with a "very good (SB)". The results of the average attractiveness test on the response of students with the criteria "very good (SB)". It can be concluded that the product development of the generated videocribe sparkol bilingual learning media is feasible, interesting, and effective by providing good results in its implementation.
Analisis Kemampuan Pemecahan Masalah Matematis : Dampak Model Pembelajaran Superitem Berbantuan Scaffholding
Authors: Raya Ahmad Kausar , Soleh Sofyan M , Wulandari Heny
Published: June 2019

This study aims to determine the effect of the use of the super-scaled model of scaffolding on students' mathematical problem solving abilities. The sampling technique used was cluster random sampling with 3 classes namely experimental class 1 (the class was treated with scaffolding assisted superememe learning model), experimental class 2 (superitem learning only) and control class (the conventional treatment class). Hypothesis testing used is anava 1 cell path is not the same. The results of the study found that there were differences in students' mathematical problem solving abilities by using learning models of scaffolding assisted supermarkets. Furthermore, the mathematical problem solving ability of students with the super-intensive learning model assisted by scaffholding is the same as the mathematical problem-solving ability of students using superemit learning models. The mathematical problem solving ability of students with superficial learning models assisted by scaffholding is better than the students' mathematical problem-solving abilities using conventional learning models. Furthermore, the mathematical problem solving ability of students with superemit learning models is the same as the mathematical problem solving ability of students using conventional learning models.
Analisis Kemampuan Pemecahan Masalah Matematis : Dampak Model Pembelajaran Reciprocal Teaching Dengan Fieldtrip
Authors: Darmani Jamroni Wibi , Renaldi Achi
Published: June 2019

Students' mathematical problem solving ability is very important. But the results of the observation and supported by several studies of students' mathematical problem solving abilities are still very low. It is suspected that reciprocal teaching learning model with the help of tripships can improve students' mathematical problem solving abilities. This study aims to determine the effect of using reciprocal teaching models with fieldtrips on students' mathematical problem solving abilities. The sampling technique used was cluster random sampling with 2 classes, namely experimental class (the class was treated with reciprocal teaching learning model with fieldtrip), and the control class (the class was treated by conventional models). The hypothesis test used is the t-test. The results of the study found that there were differences in students 'mathematical problem solving abilities using reciprocal eaching learning models with fieldtrips on students' mathematical problem solving abilities. Furthermore, the mathematical problem solving ability of students with reciprocal teaching learning model is better than the students' mathematical problem solving abilities using conventional learning models. The conclusion of this study is that there is influence in improving students' mathematical problem solving ability by using reciprocal teaching learning model with fieldtrip to.
Analisis Kesulitan Belajar dalam Memahami Kecemasan Peserta Didik pada Pembelajaran Matematika
Authors: Wantika Wantika , Nasution Sri Purwanti
Published: June 2019

This study is based on the problems that occur in mathematics subjects, where most of the content is abstract, not a few students who find it difficult to learn. This should receive special attention from several parties, such as teachers, school environment, guardians, and the environment. because the subjects of mathematics is one of the mandatory lessons that must be studied all levels of primary and secondary education. This study aims to describe learning difficulties in understanding the anxiety of learners on learning mathematics class X in SMA Muhammadiyah 1 Kotaagung Tanggamus District. In this study population of 37 students with sampling technique in this study using purposive sampling and random class. Data collection in this research is a field data record using documentation, observation, questionnaire, and interview. Learning difficulties can be interpreted as a condition in the learning process characterized by the presence of certain barriers to achieve learning outcomes. In this study more mangacu on the subject of anxiety learners who become obstacles in achieving the objectives of learning .. This research is a type of qualitative research and validity techniques in this study using time triangulation. Based on the results of data analysis and discussion of learning difficulties in understanding students in learning mathematics can be concluded that the factors that affect learning difficulties are physical and physical factors and external factors that are family and environmental factors. Anxiety of learners with low anxiety category is more noticeable and very passionate in mathematics learning compared to the other two categories namely medium anxiety category and high anxiety.
Analisis Kesulitan Belajar : Dampak Latar Belakang Kejuruan ditinjau dari Proses Pembelajaran Matematika Perguruan Tinggi
Authors: Yasin Muhammad , Netriwati Netriwati
Published: June 2019

The purpose of this study is to make a diagnosis of student learning difficulties Mathematics education graduate IPA, IPS and SMK in terms of learning mathematics. This research uses descriptive qualitative research type. Instrument used in the form of interview result, observation result of student learning mathematics and supported by result of questionnaire of interest of student of mathematics education by using Likert scale measurement which used to measure attitude, opinion, or perception of someone about social phenomenon. The results of this study include: (1) Types of learning difficulties for students with science graduates including difficulties in academic learning (academic learning disabilities). (2) Types of learning difficulties students with social studies and vocational backgrounds have a type of learning difficulties related to development (developmental learning disabilities) which includes perceptions, difficulties in language learning and communication, and learning difficulties in adjusting social behavior. (3) the effort that must be made to overcome this is to foster a high interest in learning to students.
Penggunaan Prezi untuk Media Pembelajaran Matematika Materi Fungsi
Authors: Rohiman Rohiman , Anggoro Bambang Sri
Published: June 2019

This study aims to develop prezi-based mathematics learning media to increase interest in learning in the function material. The media developed is a mathematics learning media using Prezi software. This type of research is research and development (Research and Development) using an adapted research and development model which includes stages: (1) Analysis; (2) Design; (3) Development; (4) Trial (Implementation). The subjects of this research trial were 33 eighth grade students with function material. In this development research with the main objectives as product development and testing the effectiveness of the product in achieving the objectives in the study. Data collection instruments used were media validation questionnaire, material validation questionnaire, and student response questionnaire. The main result of this research is mathematics learning media using Prezi software. The quality of mathematics learning media using Prezi software is very good based on the results of media expert validation with a score of 93% and based on material experts is good with a score of 77.5%, and the response of students to learning media is very good with a score of 83.9% using a scale Likert.
Fungsi Zeta Riemann Genap Menggunakan Bilangan Bernoulli
Authors: Maulidi Ikhsan , Apriliani Vina , Syazali Muhamad
Published: June 2019

In this article, we study about the value of Riemann Zeta Function for even numbers using Bernoulli number. First, we give some basic theory about Bernoulli number and Riemann Zeta function. The method that used in this research was literature study. From our analysis, we have a theorem to evaluate the value of Riemann Zeta function for the even numbers with its proving.
Penerapan Model Pembelajaran Discovery Learning Berbantuan Program Cabri 3D untuk Meningkatkan Hasil Belajar Peserta Didik Materi Pokok Dimensi Tiga
Authors: Hutapea Lisbeth
Published: June 2019

This study aims to improve student learning outcomes in the three dimensional material with the Discovery Learning model assisted by the 3D CABRI program. The type of research used is Classroom Action Research. The results showed that discovery learning learning models assisted by Cabri 3D media can improve student learning outcomes. This is evidenced by an increase from the pre cycle with the class average value of 63.06 increasing to 63.89 in the first cycle and in the second cycle the average increased again to 83.13. Classical learning completeness also increased from 9.26% in the pre-cycle to 38.89% in the first cycle and increased again in the second cycle to 80%.
Analisis Prestasi Belajar Matematika : Dampak Model Pembelajaran Kooperatif Tipe Think-Pair-Square Ditinjau dari Aktivitas Belajar
Authors: Suriati Suriati
Published: June 2019

This study aims to describe the effectiveness of TPS (Think-Pair-Square) in terms of mathematical learning activities and the effectiveness of TPS in terms of learning achievement in mathematics. The method in this study was quasi-experimental. The study population was class IX students of SMP Negeri 24 Bandar Lampung Academic Year 2017/2018. The sample was obtained by random class technique and selected class IX D as the control class and class IX E as the experimental class. The research instrument used was a test of student achievement in the form of pre-test and post-test, learning activity questionnaire and observation sheet of learning activities of students. The results showed that the TPS learning model was effective in terms of the learning activities of students with a tcount = 6.604> t table = 2.05553 so that H0 was rejected. In addition, TPS was also effective in terms of the learning achievement of the analysis results. It was found that the p value was 0,000 <α so that H0 was rejected, meaning there were differences in the results of the pre-test and post-test. This means that the Think Pair Square (TPS) learning model is effective in terms of learning achievement.
SOFT POWER DAN SOFT DIPLOMACY
Authors: Yani Yanyan Mochamad , Lusiana Elnovani
Published: June 2019

Dalam perkembangannya hubungan internasional selalu memberikan tempat khusus bagi hadirnya tren diplomasi terkini.  Pembahasan soft power, hard power dan smart power dari Nye dengan penekanan praktik America power, mengantarkan discourse tentang soft diplomacy di belahan dunia lainnya, Asia dan Eropa.  Hal ini dapat menjadi sebuah penanda atau momentum bergesernya kecenderungan masyarakat internasional untuk optimalisasi upaya diplomasi sebagai pencegahan terhadap penyelesaian konflik internasional.  Di dalam tulisan ini, peneliti menggunakan metode studi kasus untuk mengupas berbagai fenomena unik dari praktik soft diplomacy di berbagai kisah diplomasi yang mendunia.  Tulisan ini akan mengungkap batas dan definisi praktik konsep soft diplomacy.  Dari uraian pembahasan tersebut diharapkan akan muncul definisi soft diplomacy yang secara tegas akan membedakannya sekaligus memberi khas diantara praktik-praktik diplomasi yang telah ada di masa sebelumnya.
Menggagas Fikih Media Sosial
Authors: Khariri Khariri
Published: June 2019

The development in the field of information technology in the era of industrial revolution 4.0 was so rapid. However, there are many negative findings from the use of social media, such as hoaxes, utterances of hatred, slander, etc. This requires a more contextual study of Islamic law (fiqh) and is able to answer what is the demand of the times, especially the phenomenon of social media. In carrying out the formulation of Islamic law, there are two methods of reasoning used, namely normative-deductive and empirical-inductive, so that the resulting laws can be in accordance with the demands of the community. Therefore, the idea of social media fiqh is to make an effort to find the maqÄá¹£id al-syarÄ«â€™ah (legal purpose) in the use of social media. By using the theory of sadd al-Å¼arÄ«â€™ah analysis, this study sought formulation of Islamic law in order to be a solution in the times. This theory is used to explore various problems that have occurred in the development of communication on social media. In addition, this study attempts to trace the exclusion (istinbÄá¹­) of the law in formulating the fiqh of social media with the Uá¹£Å«l al-Fiqh approach and the social history of Islamic law. The work of this research is inseparable from the two legal provisions that have been formulated before, namely the MUI fatwa on Social Media and the Law of Information and Electronic Transaction.
Politik Hukum Poligami (Studi terhadap Peraturan Perundang-Undangan di Negara-Negara Muslim)
Authors: Marzuki Ismail
Published: June 2019

This article discusses Islamic family law politics about regulating polygamy in Muslim countries. The policy of Islamic law in Muslim countries in the modern era can be categorized into two, namely uncodified law, and codified law. The Muslim countries discussed in this article are Muslim countries whose legal politics fall into the codified law category, namely: Turkey, Tunisia, Iran, Indonesia, Egypt, Morocco, and Afghanistan. Although according to fiqh polygamy is something permissible, in practice each Islamic country has a different legal policy related to polygamy, namely: (1) some countries allow polygamy, (2) some allow polygamy with strict conditions, and (3) some prohibit polygamy. In addition, this article also discusses the "progress" of legal policies regarding polygamy from the jurisprudence school of law that are commonly adhered to in each of these Islamic countries. This article shows that legal policies regarding polygamy in Islamic countries included in the codified law category have a variety of styles, some are liberal, conservative, and some are moderate.
Pelatihan Manasik sebagai Syarat Haji Perspektif Ulama Aceh
Authors: Nasrullah Nasrullah , Abdullah Abdullah , Chalidin Chalidin
Published: June 2019

The word manasik in several Qurâ€™anic verses and hadith shows the importance of the perfection of the Hajj. Classical Muslim scholars do not discuss specifically about manasik, but nowadays the manasik (hajj rituals) training for prospective pilgrims has been coordinated by government. This requires new ijtihad for the legality of Hajj ritual training, especially among Acehnese scholars. This research examines how the position of manasik is within the scope of the Hajj rules; how the Aceh Ulamas view and consider the manasik training as a requirement of Hajj. This study uses a qualitative method. The results of the study indicate that the position of manasik training within the scope of the Hajj rule is as an observance and knowledge of the procedures for performing the Hajj. Learning Hajj rituals includes an observance and it is obligatory for people who do not understand it such as conditions, requirements and things that are not permitted during Hajj. Acehnese Ulama are of the view that the Hajj manasik training cannot be used as a requirement of Hajj, but there are also those who argue that in the present conditions the manasik training can be used as a requirement of the Hajj and it can even become mandatory. The existence of differences of opinion in carrying out ijtihad is caused by legal basis considerations and the logic used.