bluuebunny/crossref_metadata_2025_split huggingface dataset:
Deposition Hydroxyapatite /Titania Composite on Ti-6Al-7Nb Alloy for Human Body Implants
Authors: Hamdi Dunya Abdulsahib 
Published: December 2018

The microstructural analysis and electrochemical measurements tests were used to investigate the behaviors of (TiO2) and (HAp)-coated Ti-6Al-7Nb alloy in the SBF solution .By using RF sputtering, a thin TiO2 layer coated the substrate, while a thick layer of HAp coated the outer side of surface. The generated middle layer consist of the composite of TiO2 and HAp which is by AFM characterized as uniformly distributed coating system with nano size. The images of the scan electron microscopy (SEM) shows that there is no any cracking observed in the outer layer of tested samples due to the use of thin film TiO2 as mid lead to reduce the difference in the thermal expansion between the HAp material and Ti-6Al-7Nb substrate .The HAp upper layer significantly improve the bioactivity of the Ti-6Al-7Nb alloy. In this study, the bonding strength and the corrosion resistance was improved by using thin layer of TiO2. From electrochemical impedance spectroscopy (EIS) study Bod plot, the composite layer of TiO2 and HAp was suggested by the capacitive act as barrier layer coated substrate and prevent the relays of the ion from metallic. The results shows the values of Rox (309.2 k? cm2)are greater than for Rct(19.2 k? cm2), by assumes the presence oxide film increases for coated substrate are greater than that of uncoated, which is a result of the presence of coated film that improve the corrosion resistance of the sample.
Penerapan Metode Economic Order Quantity Pada Rancangan Aplikasi Inventory Control System
Authors: Anwar Stela Veranita , Legowo Mercurius Broto 
Published: December 2018

Tujuan dari penelitian ini adalah penerapan metode Economic Order Quantity (EOQ) pada perancangan aplikasi inventory control system untuk mengendalikan persediaan barang pada studi kasus di Bagian Gudang Sudin Damkar wilayah Jakarta Selatan. Penelitian ini dilakukan adanya berbagai permasalahan pengendalian persediaan, seperti: pengendalian persediaan yang tidak ekonomis, stok yang tidak aman, serta pemesanan kembali yang sulit. Kemudian, untuk menyelesaikan berbagai masalah dalam pengendalian persediaan ini, perlu menerapkan metode EOQ dalam aplikasi sistem kontrol persediaan. Perancangan aplikasi sistem dalam penelitian ini dengan menggunakan pendekatan Unified Modeling Language (UML).Hasil penelitian produk terapan ini adalah suatu aplikasi sistem yang mempermudah para pengguna sistem untuk dapat mengendalikan persediaan yang dimiliki dengan cepat, mudah dan akurat dan menghasilkan suatu laporan secara grafis yang sangat membantu dalam pengambilan keputusan. Aplikasi sistem ini diharapkan akan menjadi alat yang sangat berguna untuk pengendalian persediaan secara optimal.
Komparatif Performance Model Keamanan Menggunakan Metode Algoritma AES 256 bit dan RSA
Authors: Anwar Nizirwan , Munawwar Munawwar , Abduh Muhammad , Santosa Nugroho Budhi 
Published: December 2018

Seiring dengan berkembangnya teknologi informasi yang semakin pesat, kemampuan untuk mengakses dan menyediakan informasi ke pengguna semakin cepat dan akurat. Maka dari itu, melindungi informasi tersebut terhadap pihak yang tidak berwenang merupakan suatu hal yang penting. Kriptografi dapat digunakan karena kriptografi adalah salah satu bidang pengembangan teknologi informasi untuk mengamankan data atau pesan yang bersifat pribadi dan rahasia. Sehingga, dibutuhkan sebuah pengamanan untuk mencegah hal-hal yang tidak di inginkan. Dalam hal ini proses pengiriman pesan akan melakukan enkripsi (plainteks ke ciphertext) dan penerima pesan perlu dilakukan dekripsi (ciphertext ke plainteks), Algoritma yang akan digunakan adalah algoritma simetrik “American Encryption Standard” (AES) 256-bit dan asimetrik (RSA). Pengujian performa (ukuran dan time-proses), keutuhan (“data integrity”), kerahasiaan, dan “non-repudiation” keamanan data atau pesan dengan metode algoritma di atas akan merujuk pada 4 (empat) tujuan kriptografi modern dikembangkan. Algoritma tersebut digunakan untuk menyandikan data yang disimpan dalam file dokumen dan mengimplementasinya menggunakan bahasa Python 3.0 dan beberapa aplikasi yang didukung. Dan hasil proses perancangan dan pengujian data (teks maupun gambar) diperoleh tidak mengalami perubahan yang signifikan, akan tetapi enkripsi/dekripsi pada metode algoritma RSA jauh lebih lambat dibandingkan kinerja time-processing metode algoritma AES
ÜNİVERSİTE TERCİHİNDE ÇOK KRİTERLİ KARAR VERME YÖNTEMLERİNİN KULLANILMASI: VAKIF ÜNİVERSİTELERİNİN AMELİYATHANE PROGRAMLARI ÜZERİNE BİR ANALİTİK HİYERARŞİ PROSESİ UYGULAMASI
Authors: DOĞAN Nuri Özgür , UÇAK Hatice 
Published: December 2018

Türkiye’de son yıllarda üniversite sayısının artmasıyla birlikte öğrencilerin tercih edebileceği devlet ya da vakıf üniversitesi alternatifleri de çoğalmıştır. Bir yükseköğretim programını tercih ederken öğrencilerin dikkate aldığı çok sayıda kriter ve alternatif söz konusudur. Bu çalışmanın amacı bir yükseköğretim programı tercih edilirken dikkate alınan kriterlerin önem derecesinin belirlenmesi ve alternatif üniversiteler arasından en uygun olanının seçilmesidir. Bu amaç doğrultusunda vakıf üniversitelerinin ameliyathane programlarının seçimi problemi ele alınmış ve söz konusu karar probleminin çözümünde çok kriterli karar verme yöntemlerinden birisi olan Analitik Hiyerarşi Prosesi (AHP) kullanılmıştır. Yöntemin uygulanması sonucunda yedi kriter önem sırasına dizilmiş ve dört alternatif üniversite arasından en uygun olanı tespit edilmiştir. Kriterlerin ağırlıkları ile alternatif üniversitelerin sıralamaları belirlenirken iki ayrı sınıftan öğrencilerin görüşlerinden faydalanılmıştır. Birinci sınıf öğrencilerinin ortak görüşlerine göre kriterlerin önem sıralaması baştan sona taban puan, burs, öğrenim ücreti / aile ve çevreye yakınlık, akademik kadro, fiziki yapı ve yerleşke ve kültürel etkinlikler olarak bulunmuştur. İkinci sınıf öğrencilerinin ortak görüşlerine göre ise bu sıralama taban puan, öğrenim ücreti, aile ve çevreye yakınlık, burs, akademik kadro, fiziki yapı ve yerleşke ve kültürel etkinlikler şeklinde olmuştur. Kriterler bakımından benzer görüşler ortaya çıkmış fakat tercih edilen alternatif üniversite sıralaması bakımından iki sınıf arasında belirgin farklılıkların olduğu görülmüştür. Son olarak, çalışmanın kısıtlarından ve gelecekte yapılacak araştırmalara ilişkin önerilerden bahsedilmiştir.
NEVŞEHİR’DE ORYANTİRİNG SPORU VE ORYANTİRİNGİN DOĞAYA ETKİSİ
Authors: İMAMOĞLU Ali , İMAMOĞLU Mehmet , UYSAL Ahmet 
Published: December 2018

Oryantiring
sporu bilinmeyen bir bölgedeki işaret veya kontrol noktalarını harita ve pusula
yardımıyla bulma faaliyetidir. Oryantiring bireyleri hem fiziksel hem de zihinsel anlamda geliştirmektedir. Oryantiring sporunda genellikle ormanlık arazilerin tercih edilmesi sebebiyle Nevşehir ilk etapta pek uygun görülmemiştir. Oryantiringin yaygınlaşması ve çeşitli sahalarda
uygulanmasıyla birlikte ilin uygun olduğu görülmüştür. Nevşehir’de peri
bacalarının yaygın olduğu alanlarda oryantiring yapılmaya başlanmış ve taş
orman deyimi ortaya çıkmıştır. Oryantiring sporu Nevşehir’de yapılan diğer
birçok doğa sporu gibi bazı negatif sonuçlar doğurmaktadır. Örneğin oryantiring
müsabakaları sırasında bazı bitki türleri koparılabilir. Yine oryantiring alanı
içerisinde yer alan canlılar korkutulabilir. Müsabaka sahalarında toprak
sıkışması olabilir. Toprağa infiltre olamayan sular yüzeysel akışa geçerek
erozyona sebebiyet verebilir. Yarışma yapılan doğaya zarar verecek maddeler
atılabilir.

Oryantiring
Nevşehir ili için önemli bir değerdir. Oryantiring etkinliklerinin turizme
katkısı göz önünde bulundurulmalıdır. Oryantiringin Nevşehir doğası üzerindeki
olası negatif etkileri dikkate alınmalı ve uygun sahalar seçilmelidir.
La competencia evaluativa como factor clave en la calidad docente: Percepción de las/os maestras/os en la formación inicial
Authors: Bilbao Martínez Ainhoa , Villa Sánchez Aurelio 
Published: December 2018

Resumen:La competencia evaluativa docente destaca por su incidencia en la enseñanza, el aprendizaje y el desarrollo institucional. Su relevancia se hace especialmente manifiesta en la formación básica de maestras/os, donde el alumnado configura buena parte de las representaciones evaluativas que reproducirá al desempeñar el rol docente. El presente trabajo analiza la visión de una muestra de 704 estudiantes de los Grados de Educación Infantil y Primaria sobre la competencia evaluativa del profesorado. La recogida de información se ha realizado por medio de un cuestionario que capta el cumplimiento percibido en cinco factores vinculados a la evaluación: Diseño, Implementación, Control, Resultados y Revisión. El análisis estadístico ofrece una descripción general de la competencia evaluativa advertida por las/os estudiantes y la contrasta en función del grado de competencia docente que subjetivamente atribuyen al profesorado (poco competente, competente o muy competente en su labor docente) competencia docente que subjetivamente atribuyen al profesorado (poco competente, competente o muy competente en su labor docente). Los resultados revelan percepciones significativamente diferentes sobre la práctica evaluativa desarrollada en los tres grupos docentes. La magnitud de tales diferencias es grande en el Diseño evaluativo y el Control técnico, y media para la Implementación, los Resultados y la Revisión. En todas ellas, los promedios que indican una mayor percepción de cumplimiento recaen sobre el profesorado considerado muy competente en la labor docente. Incluso en este caso, el alumnado percibe un amplio margen de mejora en el ejercicio de la competencia evaluativa. La Revisión de la evaluación y el feedback y la proacción a partir de los Resultados representan, a su juicio, los factores menos desarrollados.
Investigación Escolar Abierta y desarrollo de la meta-cognición en estudiantes de Primaria: Un caso de estudio
Authors: Alonso Rodríguez Yesid , Chiappe Andrés 
Published: December 2018

Resumen:El desarrollo de la meta-cognición en niños de edades tempranas es uno de los retos más interesantes que enfrenta el sistema educativo actual dado el efecto que ésta tiene para la consolidación del aprendizaje a lo largo de la vida en una era de sobreabundancia de información, de incertidumbre y de permanentes y acelerados cambios sociales y culturales. En este contexto, se ha encontrado en las Prácticas Educativas Abiertas (PEA) una alternativa emergente de innovación educativa que ofrece una diversidad de elementos útiles para profesores y estudiantes y al mismo tiempo provee un espacio amplio de indagación para los investigadores en educación. En este artículo se describe el proceso y resultados de un estudio de naturaleza cualitativa en el que se presenta una de estas prácticas educativas en particular - la Investigación Escolar Abierta (IEA)- y se describe un caso de implementación de dicha práctica y su efecto en el desarrollo de la meta-cognición en estudiantes de primaria. Dicho estudio se realizó a partir de la exploración de rutinas de pensamiento en los estudiantes, en el marco de algunas actividades de un proceso de investigación escolar de carácter abierto, en especial en actividades que tienen que ver con la observación, el análisis y la indagación. Los resultados muestran que los elementos meta-cognitivos que resultaron fortalecidos fueron la meta-atención, la meta-memoria y la meta-comprensión.
Pensamiento del profesorado acerca de los materiales curriculares en la enseñanza natural y social tipologías docentes
Authors: Soto  Rosales Antonio , Travé González Gabriel 
Published: December 2018

El uso del libro de texto y de los materiales curriculares de elaboración docente afecta a todos los colectivos implicados en el hecho educativo, constituyendo un aspecto controvertido de la práctica educativa que se necesita investigar. El estudio que se presenta analiza las concepciones y prácticas docentes vinculadas con esta problemática, al objeto de establecer tipologías del profesorado en función de la progresión de sus ideas y prácticas en la enseñanza básica del Medio Natural y Social. El principal instrumento de investigación ha sido una escala tipo Likert de 51 ítems con cuatro opciones de respuesta. Se obtuvo información cuantitativa y cualitativa de 863 maestros (94 centros y 81 localidades andaluzas). El análisis de clúster, triangulado con datos cualitativos, presenta cuatro clúster configurando las tipologías docentes siguientes: profesorado dependiente, funcional, ecléctico y diseñador. Entre las conclusiones, se constata un cambio de tendencia del profesorado en la utilización de materiales, caracterizado por el cuestionamiento del libro de texto que obtiene la menor valoración profesional, frente al incremento de las concepciones de la práctica referidas a la elaboración de materiales docentes con la aportación de las nuevas tecnologías. Se observa finalmente correspondencia entre el nivel de desarrollo profesional del profesorado participante y la tipología docente en la que se ubica.
Multimodaalisuus 1. ja 4. luokan suomalaisissa matematiikan oppikirjoissa
Authors: Lehtonen Daranee 
Published: December 2018

Tässä tutkimuksessa tarkasteltiin 1. ja 4. luokan matematiikan oppikirjojen multimodaalista tekstiympäristöä eli moninaisten semioottisten resurssien käyttöä, joka on keskeistä matematiikan oppimisessa. Tavoitteena oli selvittää, 1) millaisia semioottisia resursseja oppikirjoissa on sekä luettavaksi annettuna (ts. tekstien tulkinnassa) että tehtäviksi annettuna (ts. tehtävien tekstien tuottamisessa), 2) miten niitä hyödynnetään merkitysten luomisessa ja 3) kuinka monipuolisesti semioottisia resursseja hyödynnetään oppikirjoissa. Tutkimuksen lähestymistapana on monimenetelmä (mixed-methods). Aluksi tarkastelin aineistojen diskurssia yleisellä tasolla soveltaen metafunktiota ja aikaisempia tutkimuksia. Sen jälkeen erittelin aineiston sisältöjä määrällisesti: onko kyseessä tekstien tulkinta vai tuottaminen ja mitä semioottisia resursseja käytetään. Lopuksi tarkastelin eriteltyjen aineistojen diskurssia. Tutkimustulokset osoittavat, että multimodaalisuuden näkökulmasta monipuolisia tekstiympäristöjä huomioidaan hyvin vähän tutkituissa oppikirjoissa. Matematiikan symbolikieli on selkeästi dominoiva erityisesti tekstien tuottamisessa. Kaikissa oppikirjoissa erilaisia semioottisia resursseja hyödynnetään enimmäkseen vain oppilaan luku- ja laskutaitojen perusteella sekä matematiikan opetettavien sisältöalueiden kannalta. Oppilaan monilukutaidon kannalta matematiikan oppikirjojen tekstiympäristö voisi olla monipuolisempi: oppilaalle voitaisiin tarjota enemmän multimodaalista luettavaa ja tuotettavaa.
In English
This study investigated first- and fourth-grade mathematics textbooks’ multimodal text environment. It aimed to discover 1) what semiotic resources are utilised for interpreting and producing texts, 2) how they are used for meaning-making and 3) how diversely. The inquiry strategy was mixed-methods. First, I analysed discourse of the research data generally using metafunction and previous research. Then, I quantified each semiotic resource’s distribution in terms of text interpretation and production and types of semiotic resources. Finally, I analysed discourse of each quantified data. Research findings demonstrate that from a multimodal perspective, diverse textual environment is barely paid attention to. The symbolic language is dominant, especially to text production. In all textbooks, semiotic resources are used mainly on the basis of student’s literacy and numeracy and to-be-leant mathematics contents. In favour of a student’s multiliteracies, mathematics textbooks’ text environment should be more diverse: offer more multimodal text interpretation and production.
FULL TEXT IN FINNISH.
Ectopic Pregnancy and its Risk Factors: A Case Control Study in Nepalese Women
Authors: Bhandari G. , Yadav K.K. , Shah R. 
Published: December 2018

Introduction: Ectopic pregnancy is a significant cause of maternal mortality and morbidity during the first trimester. The major risk factors for ectopic pregnancy include prior tubal infections, previous ectopic pregnancy, previous abortions, use of intrauterine contraceptive devices, contraception failure, tubal surgeries, infertility and use of artificial reproductive pregnancies. This study was carried out to evaluate the effect of different risk factors in the causation of ectopic pregnancies among women in the Nepalese setting.
Materials and methods: This was a case-control study conducted at Kathmandu Medical College comparing 39 cases of ectopic pregnancies with 39 controls consisting of intra-uterine pregnancies. The suspected cases were confirmed through clinical examination, trans-abdominal or trans-vaginal ultrasonography and serum β-hCG levels with further confirmation obtained after laparotomy / laparoscopy among cases who underwent surgery. The two study groups matched with age, gravidity and contraceptive uses were studied. History of previous abortions, previous ectopics and past abdomino-pelvic surgeries were also studied.
Results: There was statistically significant difference in the incidence of contraceptive failure among the two groups (p-value= 0.032) with women with such history having a relative risk of 1.667 with odds ratio of 3.400. The risk posed by previous abortions and previous ectopics wasn’t found significant (RR= 1.000 and 2.053 respectively). The history of past abdomino-pelvic surgeries also showed significant role in causation of ectopics (RR= 1.094).
Conclusion: Among different risk factors studied, the contraception usage was the most significant risk factors. Oral contraceptive pills was the most identified among the contraception used in cases of ectopic pregnancy.
The Effect of Pterygopalatine Fossa Block (PPFB) during Endoscopic Sinus Surgery (ESS) on Intraoperative Bleeding: A Randomized Control Trial
Authors: Paudel Deepak , Chettri S.T. , Shah S.P. , Shah B.P. , Manandhar S. , Mishra S. 
Published: December 2018

Background: Bleeding is the frequent intraoperative complication in most of the surgeries and remains a challenge for the surgeons and anesthesiologists. Major blood loss during FESS is rare but even a small amount of bleeding disturbs the endoscopic surgery field, increases the likelihood of complications, lengthens the time of surgery and results in incomplete surgery. The greater palatine canal (GPC) local injection is used to limit posterior bleeding during sinus surgery.
Objective: To study the effect of pterygopalatine fossa block on intraoperative bleeding and operative field optimization during endoscopic sinus surgery.
Methods: Prospective double blind randomized control trial. Thirty six patients were recruited in the study who also acted as their own control. PPFB was done only on one side of the nostril and the side was randomized by the lottery; neither the patient nor the operating surgeons were aware of the laterality. Boezaart score was used to quantify the intra-operative blood loss.
Results: Blood loss between block group and non-block group was compared. Patients in block group had more stable hemodynamics with no fluctuations, better visibility of the surgical field and decreased blood loss as compared with non-block group.
Conclusion: Greater palatine fossa block is a useful adjunct in patients undergoing endoscopic sinus surgery. It provided more stable hemodynamics, good operative conditions by lowering blood loss.
Factors Contributing to Kerosene Oil Poisoning in Children
Authors: Singh Arun Kumar , Gurung P.K. 
Published: December 2018

Introduction: Kerosene has been identified as the most common cause of accidental poisoning around the world with majority occurring to either lower or middle income countries. Kerosene poisoning is identified as the fourth leading cause of injury related mortality in children with highest risk for acute poisoning occurring in child under five years of age.
Objectives: To identify common factors responsible for exposure to kerosene oil poisoning, its presenting features and outcomes in children.
Methods: This was a descriptive study conducted in Department of Pediatrics and Emergency Department, Mayo Hospital / King Edward Medical University Lahore, Pakistan from March to September 2015.
Sixty children between the ages of 6 months to 10 years with history of kerosene oil ingestion/ poisoning were enrolled in the study. Information was obtained from guardians or parents.
Results: Sixty patients with history of kerosene poisoning were seen during the summer season. Age ranged from 6 months to 10 years. Most patients were from the ages 1 and 3 years and 75% were boys. Most children were from poor socioeconomic condition. The containers were soft drink bottles and plastic bottles; and kitchen and stairs were the common sites of storage. Clinical presentations were cough, vomiting and tachypnea. One child in study died after 8 hours secondary to respiratory complication.
Conclusion: Kerosene oil is a common health hazardous substance ingested accidentally by children. There is a need to create public awareness regarding kerosene oil storage and accessibility at home from the younger children.
Computerized Tomography of the Brain for Elderly Patients Presenting to the Emergency Room with Acute Confusion State in Eastern Nepal
Authors: Kumari Shakuntala , Rai B.K. , Bhandari R. , Gupta S.N. , Ahmed K. 
Published: December 2018

Background: Acute confusion is a common reason for presentation of elderly patients to the emergency which may be of neurological or non-neurological origin. Computerized tomography (CT) scans are often routinely ordered to investigate the cause.
Objective: To determine the usefulness of CT scan brain in confused elderly patients.
Methods: A cross-sectional observational study was conducted in emergency room (ER) of B. P. Koirala Institute of Health Sciences over a period of 6 months in 84 patients above the age of 65 years who had CT scan brain done in view of acute confusion. They were reviewed for symptoms, indications of CT scan and presence of focal neurological deficits (FND).
Results: Among patients presenting in confusion and with loss of consciousness or limb weakness, CT scan was abnormal in 90% and 92% cases respectively (p <0.05) whereas those presenting with fever, cough, headache, dizziness, seizure in confusion also had abnormal CT but was statistically not significant (p> 0.05). Out of 84 elderly cases of acute confusion, 52 had FND and the remaining 32 cases were without FND. Among those with FND, 40% and 46% cases had features of ischemic and hemorrhagic stroke respectively. Among the 32 without FND, 66% patients had normal scan and 38% had cerebral atrophy. In patients with Glasgow Coma Scale (GCS) < 9 with FND, 75% had CT scan suggestive of hemorrhagic stroke whereas those with GCS> 13 with FND, 57% and 29% cases had ischemic and hemorrhagic stroke respectively.
Conclusion: CT scan brain for confused elderly should be advised for those with focal neurological symptoms and may be suggested in cases of head trauma or alleged history of fall irrespective of GCS and symptomatology.
Clasificación de problemas de matemáticas enfocada al desarrollo de la creatividad
Authors: García-Cruz María Antonia , Falcón-Rodríguez Carlos Manuel 
Published: December 2018

Este trabajo ofrece una metodología novedosa para la clasificación de los problemas matemáticos que se usan en la enseñanza preuniversitaria. La clasificación se hace atendiendo a lo que hemos definido como espectro de relaciones funcionales de un problema. Con este método logramos precisar la importancia del problema en el desarrollo de la inteligencia lógico-matemática de los estudiantes. En el trabajo se abordan diferentes aspectos del proceso de enseñanza bajo la luz de un nuevo enfoque. Por ejemplo, se discute el desarrollo de la creatividad, con dos clases de creatividad lógico-matemática diferentes; la racionalización del aprendizaje basado en problemas, la identificación de competencias matemáticas y la desmitificación de la creatividad matemática, que es quizás, el aspecto más importante de nuestro trabajo.