bluuebunny/crossref_metadata_2025_split huggingface dataset:
Retrospective Study of Craniovertebral Junction (CVJ) Anomalies: A Clinical Profile and Outcome Analysis of Surgically Treated Patients
Authors: Paudel Prakash , Khadka Nilam K , Shrestha Dipak , Bista Prakash , Sharma Gopal R 
Published: October 2019

Craniovertebral junction (CVJ) is a complex anatomic region providing stability and mobility to the most important part of the craniospinal axis. The purpose of this study is to analyse clinical characteristics and outcome after surgical management of patients with CVJ anomalies presented to Neurosurgery department, Bir hospital Kathmandu Nepal. A retrospective analysis of 21 patients, managed surgically for craniovertebral instability between 2013 and 2017, was performed. Imaging studies were reviewed for bony and soft tissue details. Patients managed with posterior approach alone (either occipitocervical fusion or C1-2 fusion with or without bony decompression) were included in the study. Outcome was assessed by comparing pre and post operative Nurick grade. Most common causes of CVJ instability were non union of old odontoid fracture (38.1%)and OsOdontoidium (38.1%). 76.2% had intramedullary high signal intensities in T2 weighted MRI while 90% had cervicomedullary compression. Pre operatively, 52.38% had Nurick grading scale of 4 to 5 while 47.62%had 0-3 Nurick grade scale. Post operatively, 71.42% improved clinically, 23.80% remained unchanged while one patient deteriorated. Mean duration of follow up was 20.87 months (6-60 months). Pre operative Nurick grade was significantly associated with post operative outcome (p=0.042). Early surgical intervention is associated with better clinical outcome. Larger prospective study with clinical and radiological follow up is recommended.
E-İhale Kapsamında Avrupa Birliği ve Türk Kamu Alımları’nda Dinamik Alım Sistemi’nin Karşılaştırmalı Analizi
Authors: GÜRBÜZ Aysun 
Published: October 2019

İlk kez 2004 yılında
düzenlenen Avrupa Birliği (AB) kamu alım direktiflerinde kendisine yer bulan elektronik
ihale (e-ihale) uygulamaları, kamu alımlarının sadece kağıt ortamından elektronik
ortama aktarılmasını sağlamayacak aynı zamanda kamu alımlarının daha şeffaf,
objektif, rekabetçi uygulanarak usulsüzlük ve yolsuzlukların önüne geçilmesi ve
küçük ve orta boy işletmelerin (KOBİ)’lerin kamu alımlarına daha fazla
katılımına imkan tanıyan devrim niteliğinde bir gelişme teşkil edecektir. Bu
bağlamda 2004 yılında ilk kez düzenlenen ve 2014 yılında işleyişi
sadeleştirilip basitleştirilen Dinamik Alım Sistemi de (DAS) tamamen elektronik
ortamda gerçekleştirilen ve sisteme başvuru aşamasında yeterlilik kriterlerini
sağlayan tüm isteklilerin alım kapsamındaki tüm kategorilere katılımına açık
olan yenilikçi bir usul olarak gelecek vaad etmektedir. Bu makalenin amacı,
AB’de Dinamik Alım Sistemi’nin nasıl uygulandığını incelemek ve Türk Kamu Alım
Mevzuatı’na aktarılabilmesine ışık tutmaktır. Çalışma sonucunda Dinamik Alım
Sistemi’nin başta çerçeve anlaşmalara kıyasla daha rekabetçi bir alım olduğu ve
şayet isteklilere iyi öğretilirse birçok usulün yerini alabilme potansiyeli
bulunduğu sonucuna varılmıştır.
Çalışma Sermayesine İlişkin Finansal Oranların İşletme Karlılığına Etkisi: BİST İmalat Sektöründe Bir Uygulama
Authors: AKYÜZ Hande Seda 
Published: October 2019

Bu çalışmanın
amacı çalışma sermayesinin işletme karlılığına etkilerini finansal oranlar
aracılığıyla ortaya koymaktır. Bu doğrultuda Borsa İstanbul’da yer alan imalat
sektöründeki 160 şirketin 2010 – 2018 yılları arası finansal oranları
hesaplanmıştır. Çalışmada bağımsız değişkenler; cari oran, alacak devir hızı,
alacakların tahsil süresi, stok devir hızı, stokta kalma süresi, nakde dönüşme
süresi oranları dikkate alınmıştır. Bağımlı değişkenler ise &nbsp;satışların karlılığı, aktif karlılık ve öz
kaynak karlılığıdır. Bu değişkenlerin birbirilerine olan etkilerinin tespit
edilmesi amacıyla her bağımlı değişken için model kurulmuş olup çalışmada panel
veri analizi, eş bütünleşme analizi ve regresyon analizi kullanılmıştır.

Analiz sonuçlarına göre, birinci model için,
bağımsız değişkenlerin satışların karlılığı arasında anlamlı bir ilişki olduğu
tespit edilerek, stokta kalma süresi negatif bir etkiye sahipken, diğer
bağımsız değişkenler pozitif bir etkiye sahiptir. İkinci modele bakıldığında
bağımsız değişkenlerin aktif karlılık üzerinde anlamlı bir ilişki olduğu
görülmüş, alacak tahsil süresinin ve stokta kalma süresinin aktif karlılığı
üzerinde negatif bir etkiye sahipken diğer değişkenler pozitif bir etkiye
sahiptir. Üçüncü modelde ise bu 6 değişkenin öz kaynak karlılığı üzerinde eş
bütünleşme sonucuna göre uzun dönemli bir ilişki vardır. Fakat model bir bütün
olarak anlamlı çıkmadığı için değerlendirilmemekte ve yorumlama
yapılamamaktadır.
TÜRK HAVAYOLU ÖRGÜTLERİNİN KURUMSAL SOSYAL SORUMLULUKLARI
Authors: KURT Yeşim 
Published: October 2019

Bu çalışmanın amacı
Türkiye’deki havayolu örgütlerinin kurumsal sosyal sorumlulukla ilgili
faaliyetlerinin neler olduğunu ortaya koymaktır. Bu amaca ulaşabilmek adına nitel
araştırma yönteminden faydalanılmıştır. Araştırma alanını 8 havayolu örgütü
oluşturmaktadır. Araştırmada veri toplama yöntemi olarak birincil veri kaynağı
olarak yarı yapılandırılmış görüşmeler; ikincil veri kaynağı olarak da belge
incelemesi kullanılmaktadır. Görüşmelerdeki katılımcılar, amaçlı örneklem
yöntemiyle seçilmiştir. Bu kapsamda, havayolu örgütlerinin kurumsal sosyal
sorumlulukla ilgili yöneticileriyle görüşülmüştür. Belge incelemesi için de
havayollarının web sitelerinde, basın bültenlerinde, duyurular ve
sürdürülebilirlik raporlarında paylaştıkları bilgilerden faydalanılmıştır. Araştırmada
toplanan nitel veriler NVivo 12 programı aracılığıyla tümevarımsal yöntemle
analiz edilmiştir. Analiz sonucunda, 4 tema, 12 kategori ve 11 alt kategoriye
ulaşılmıştır. Araştırma sonuçlarına göre, havayolu örgütleri ekonomik, yasal,
etik ve gönüllülük olmak üzere 4 temel boyutta faaliyetler
gerçekleştirmektedir. Bu boyutlar altında, çevreye, müşterilere, topluma,
yöneticiler ve çalışanlara yönelik uygulamaların çoğunlukta olduğu tespit
edilmiştir.
Caregiver Burden and Related Factors Among Caregivers of Patients with Myotonic Dystrophy Type 1
Authors: Kurauchi Go , Endo Makiko , Odaira Kaori , Ono Ryohei , Koseki Atsushi , Goto Momoko , Sato Yumi , Kon Seiko , Watanabe Norio , Sugawara Norio , Kimura En , Takada Hiroto 
Published: October 2019

Background: Multi-systemic symptoms of varying severity in myotonic dystrophy type 1 (DM1) may pose difficulties in caregiving. However, the factors which affect their care burden are yet to be sufficiently understood. Objective: We investigated care burden and its correlates among caregivers of patients with DM1. Methods: General demographic information was obtained from patients with DM1, as well as Barthel index (ADL), body mass index, and genetic information. Patients completed SF-36v2 (health-related quality of life), CES-D (depressive symptoms), and ESS (daytime sleepiness) questionnaires. Caregivers reported their perception of patient’s status through these questionnaires, and completed Zarit Caregiver Burden Interview (ZBI). Correlation analysis of these variables were performed, and regression analysis was utilized to assess the relationship between caregiver burden and other variables. Results: Forty-three patient-caregiver dyads participated. Mean ZBI score was 20.7±17.4, and 32.6% reported a significant care burden. ZBI correlated with caregiver-reported CES-D, but not with patient-reported CES-D. Both patient-reported and caregiver-reported physical QoL of patients correlated with patient ADL. Multiple regression analysis revealed that the combination of caregiver-reported CES-D, caregiver-reported mental QoL, and genetic characteristics predicted caregiver burden. Conclusions: Caregiver burden was felt although patients were relatively well-functioning. Patients’ and caregivers’ assessment of patients’ physical condition were similar. However, they did not agree on the evaluation of the patients’ psychological state. Cognitive characteristic of the patients and the caregivers’ perception of the patients’ state may have affected the results. Future DM1 care strategies need to work on improvement of patient-caregiver communication and provide support for the caregiver’s psychological health.
The Antioxidant Characteristics of The Liquid Smoke of Cocoa Shell ( Theobroma cacao, l ) In Different Water Content Variations
Authors: Budaraga I Ketut , Susanti Eva , Asnurita Asnurita , Nurdin Elliza , Ramaiyulis Ramaiyulis 
Published: October 2019

Agricultural and plantation wastes, especially cocoa plants, have not been widely used, although in some conditions they have potential as animal feed ingredients and raw materials for composting. So needs a program potential utilization of waste produced by the plant cocoa is cocoa shell waste such as being liquid smoke. Liquid smoke is a natural food preservative. One of the advantages of liquid smoke is antioxidant compounds. This study aims to know the antioxidant activity of cocoa shell liquid smoke on a variety of different water content. This research is an experimental quantitative descriptive method so that an analysis of the antioxidant activity of liquid smoke from cocoa peel is obtained. The results showed that the liquid smoke of cocoa peels at a moisture content of 25%, 20%, 15%, and 10% had strong antioxidant activity because the IC 50 values obtained were below 50 ppm.
Isolation and Characterization of Endofytic Bacteria Indigenus Potentially Producing IAA (Indole Acetic Acid) in West Sumatera and Their Effect on Nursery Palm Oil (Elaeis guineensis jacq)
Authors: Rover Rover , Mayerni Reni , Yanti Yulmira , Syarif Auzar 
Published: October 2019

The IAA potentials of endophytic bacteria indigenous isolated from roots palm oil in west Sumatra. Isolate were characterized on the basis of visual observation, gram staining, hypersensitive reaction and IAA producing bacteria. Subsequently, effect on plant growth was tested by nursery palm oil used random design block. Out of 82 isolates, base on gram test 12 isolates were gram negative and 70 isolates grams positive and then results on the reaction hypersensitive test (HR test) there are 8 isolates that positive which means the isolate cannot be applied on the soil and plant. Eighty isolates selected were able to produce IAA that was between ppm 0,30ppm - 3,65ppm. Seven isolates showed clearly the growth promoting plant under field condition. Hence, these isolates are promising plant growth promoting isolates showing multiple attributes that can significantly influence the nursery palm oil. The result of present study, treatment E3.1.2 has higher plant most of the other treatment i.e. 21,93 cm and number of leaves i.e. 4,33 leaves.
The Effect of Temperature and Roasting Duration on Physical Characteristics and Sensory Quality Of Singgalang Arabica Coffee (Coffea arabica) Agam Regency
Authors: Fadri Rince Alfia , Sayuti Kesuma , Nazir Novizar , Suliansyah Irfan 
Published: October 2019

The purpose of this study were to determine the effect of temperature and roasting duration on physical characteristics and quality of arabica coffee sensory,: find out the best temperature and roasting duration treatmen to physical characteristics and quality of arabica coffee sensory. This study used a factorial complete randomized design with two factors (200°C, 220°C and 240°C) and duration of roasting (12, 15, and 18 minutes). The variables observed in this study were rendemen (sucrose content of sugar cane crop or sample), water content, color value, acidity and sensory test of arabica coffee. The results showed that temperature and duration of roasting had effect on rendemen, water content, color value, acidity, flavor, taste and color of arabica coffee. The temperature of 220 ° C with 12 minutes of roasting is produceed the best physical characteristics and sensory quality of Singgalang arabica coffee, with 88.1% of rendemen, 1.23% of water content (bb), different color L (Lightness) 6,07, acidity 5.81, scent score 3.5), taste score value of 3.2, color score 3.6.
ВИЗНАЧЕННЯ ОПТИМАЛЬНОГО МАРШРУТУ ОБЛЬОТУ ЗАДАНИХ ТОЧОК ТЕРИТОРІЇ ПОТЕНЦІЙНО НЕБЕЗПЕЧНОГО ОБ’ЄКТУ ФЛОТОМ БПЛА
Authors: Фесенко Герман Вікторович , Харченко Вячеслав Сергійович 
Published: October 2019

Motivation. One of the tasks of nuclear power plants and other potentially dangerous objects monitoring employing unmanned aerial vehicles (UAV) is flying over specified points of the territory of such objects. Finding the optimum routes often involves different options for the traveling salesman problem solving. However, if there are multiple starting positions, there is a need to solve the traveling salesman problem for each variant of the UAV start (for each variant of the start-end point of the route). The subject matter of the paper is the process of minimizing the flight time of visiting the specified points of the potentially dangerous object territory, taking into account the locations and models of the UAV fleet. The tasks to be solved are: to develop an algorithm for determining the optimal route for flight over of the given points of the potentially dangerous object territory for the fleet, each UAV of which is at its separate starting position; to show the possibility of using the proposed algorithm to minimize the flight time for visiting all of the appointed control posts of the automated radiation situation monitoring system for Zaporizhzhia nuclear power plant. The methods used are: graph theory, mathematical optimization models, methods for solving the traveling salesman problem. The following results were obtained. The faceted classification of the traveling salesman problem for UAV flight routing is offered. The steps of the algorithm for determining the optimal route of flight over of the specified points of the potentially dangerous object territory by the UAV fleet are described. The problem of determining the fastest flight over of 11 control posts of the automated radiation monitoring system for Zaporizhzhia nuclear power plant is solved for two cases: 1) UAV "Leleka-100" are at all starting positions, 2) UAV "Leleka-100" is at the first starting position, various modifications of the model "R-100" are at the rest starting position. Changes in the optimal route when changing UAV models and speeds are shown. Conclusions. The results obtained should be used to justify the composition of the UAV fleet, simulate its application, evaluate its target effectiveness, as well as to create algorithmic support and software for ground control station operators’ work places. Further research should focus on developing models that take into account the possibility of refueling UAVs or recharging their batteries at stationary or moving posts while being on a route.
PENGARUH PENAMBAHAN ALKANOLAMIDA TERHADAP KARAKTERISTIK PEMATANGAN DAN KEKERASAN VULKANISAT KARET ALAM BERPENGISI SILIKA
Authors: Harry Laksana Tampubolon  , Darwis Syarifuddin Hutapea  , Indra Surya  
Published: October 2019

By using a semi-efficient sulfur accelerated vulcanization system, a research about the effect of the alcanolamide on cure characteristics and hardnes propertiess of natural rubber filled silika and alkanolamide been done. Alcanolamide produced from palm oil derivatives reacted with dietanolamine. Alcanolamide aaded into rubber with levels 1.0, 3.0; 5.0; 7.0; 9.0; phr. It was found that alcanolamide gave shorter Scorch time and cure time. Alkanolamide also exhibited higher torque different, tensile moduli, tensile strength, and crosslink density up to 5.0 phr and ten decrease with future increaseing addition of alcanolamide.
PENENTUAN EFISIENSI INHIBISI KOROSI BAJA MENGGUNAKAN EKSTRAK KULIT BUAH KAKAO (Theobroma cacao)
Authors: Sri Hermawan  , Yuli Rizky Ananda Nasution  , Rosdanelli Hasibuan  
Published: October 2019

Cocoa peel extract is a natural inhibitor that can be used to inhibit the corrosion reaction rate. This research begins by extracting cocoa pods by maceration followed by evaporation on rotary vacuum evaporator and extracts used as the inhibitor with concentration 600, 800 and 1000 ppm, using steel 1 × 2 cm and the thickness is 0,1 cm to determine the corrosion rate and corrosive medias are sea water, rainwater and sulfuric acid 1 M . The highest inhibition efficiency generated is 93,06% with concentration of 600 ppm inhibitor in rainwater corrosive media; which means that cocoa peel extract more efficiently used in rainwater corrosive media.
PENGARUH SUHU DAN KECEPATAN PENGADUKAN PADA PROSES PEMBUATAN SURFAKTAN NATRIUM LIGNOSULFONAT DARI TEMPURUNG KELAPA
Authors: Jhon Peri Rinaldo Sirait  , Nico Sihombing  , Zuhrina Masyithah  
Published: October 2019

Coconut shell is one of agricultural wastes that having low commercial value. This research is objected to use coconut shell as the base material of producing surfactant. The use of coconut shell is basically due to its content of lignin, about 29,4%. The objective of this research is to obtain isolate lignin with increasing chatalis NaOH and H2SO4 with lignin identification, the effect of temperature and agitation rate of producing surfactant. The research was done in a reactor with temperature of 100 0C, 110 0C, 120 0C, 3 hours reaction time, pH 6, 80 rpm, 90 rpm, 100 rpm agitation rate, and coconut shell as the base material. Dry coconut shell is grinded and the powder is collected to be reacted. The coconut shell powder is reacted with sodium bisulfite solution with variation in ratio of 1:0,5. The product is filtered to get filtrate and residue. The filtrate is further analyzed by using the FT-IR spectrophotometry method. From the research we get maximum purity of surfactant at sodium bisulfite with reactant ratio of 1:0,5; Speed 100 rpm and temperature 120 0C.
PEMURNIAN CRUDE GLYCERINE MELALUI PROSES BLEACHING DENGAN MENGGUNAKAN KARBON AKTIF
Authors: M. Afif Aufari  , Sia Robianto  , Renita Manurung  
Published: October 2019

Crude glycerine is a concentrated liquid that with the glycerin content less than 88%. Crude glycerine has the dye produced by caroten. Caroten or usually called reddish yellow colour pigments cause the palm oil colour to be reddish yellow. Caroten is soluble in oil and fat but not in the water. Colours has a low quality and did not preferred by consumer and must be eliminated. This compound can be eliminated by a absorption process using activated carbon. The using of crude glycerine will further produce the product drugs and cosmetics industries. This research is conducted to study absorbtion of activated carbon to the crude glycerine impurities that causes the raddish yellow colour. This research do by using mesh, weight, and time of stirring with different variated.
PEMANFAATAN LIMBAH BATANG JAGUNG SEBAGAI ADSORBEN ALTERNATIF PADA PENGURANGAN KADAR KLORIN DALAM AIR OLAHAN (TREATED WATER)
Authors: Fatimah Rahmayani  , Siswarni MZ  
Published: October 2019

Various result of agricultural waste that contain high cellulose can be used as an alternative adsorbent. One of them was derived from dried corn stalks which traditionally burnt after harvest that lead to environmental pollution. It is necessary to produce the value-added materials from corn stalks waste as an alternative adsorbent to reduce the level of chlorine in treated water. This process was performed by using various level of sulfuric acid concentration 1%, 3% and 5%, particles size 50 and 70 mesh in 105 oC with adsorbtion time 30, 60 and 90 minutes. The most favorable activation result was obtained at 5% concentration, with particle size 70 mesh, adsorbtion time 90 minutes and the iodine value was 482 mg/l with level of adsorbed chlorine was 96,08%. Based on this findings, we concluded that the corn stalks waste can be used as an alternative adsorbent in reducing the level of chlorine in treated water.
DEKOMPOSISI AIR-METANOL MENJADI HIDROGEN PADA SEMIKONDUKTOR NATRIUM TANTALUM OKSIDA DENGAN MENGGUNAKAN LANTANUM SEBAGAI DOPING
Authors: Husni Husin  , Komala Pontas  , Hesti Meilina  , Fikri Hasfita  
Published: October 2019

Synthesis of semiconductor photocatalysts lanthanum-doped sodium tantalum oxide (La-NaTaO3) and its performance on water-methanol decomposition has been carried out. This research aimed is to examine the effect of methanol as an electron donor in the reaction to photocatalytic of hydrogen production. The samples are characterized by x-ray diffractometer (XRD) to determine its composition. The results indicate that the products are composed of NaTaO3 and Ta2O5. The reaction is conducted by irradiating of water-methanol of 400 ml and 1 g of photocatalyst in Pyrex glass reactor for 4 h at a temperature of 30 oC.The methanol solution is poured into the reactor of 5, 10, and 15 vol.%. For comparison, in this reaction is also used only pure water. The results depict that the rate of photocatalytic hydrogen evolution from pure water as much as 0.3(mmol / g.h). Hydrogen generation rate increased significantly when the methanol are added of 5%, 10%, and 15%, ie. 2.68, 4.79 and 8.72 ,(mmol / g.h), respectively. This has been attributed to the effect of added methanol, which acts as sacrificial electron donor and consumes photogenerated holes and/or oxygen, thereby decreasing the rates of electron-hole recombination. Reaction mechanism in semiconductor particles of NaTaO3 is also reported.
PENGOLAHAN EFFLUENT FERMENTOR BIOGAS SECARA AEROBIK MENGGUNAKAN REAKTOR ALIR TANGKI BERPENGADUK
Authors: Yohannes Tandean  , Michael Vincent  , Irvan, Bambang Trisakti  
Published: October 2019

Palm oil production in Indonesia is estimated around 28 million tonnes per annum. As this number increases, the waste generated from the process which generally called as palm oil mill effluent (POME) increases as well. In Indonesia, POME treatment is being carried out conventionally by using facultative ponds system, which is high in operational cost, uses up a vast amount of land and generates greenhouse gas, Methane (CH4) as product which is usually burnt away. From previous researches done, POME has been treated anaerobically to produce biogas, but the effluent from these processes have not yet met the standard quality control required to be released to the environment. Which is why it still needs to be treated aerobically to fulfill the standar quality control so as to be released to the environment. From the research done by using continuous stirred tank reaktor and adding effective microorganism (EM4), the final VSS value reached was around 100 mg/L with 10 days HRT.
PENGOMPOSAN SEKAM PADI MENGGUNAKAN SLURRY DARI FERMENTASI LIMBAH CAIR PABRIK KELAPA SAWIT
Authors: Irvan  , Bambang Trisakti  , Cut Novaliani Hasbi  , Elwina Widiarti  
Published: October 2019

Rice husk is material waste that is usually just burned. However, this practice is causing air pollution problems. One effort to help overcome the problem of agricultural waste is recycling technique with an emphasis on the process of composting. Many efforts can be made ​​to speed the composting process. The treatment was performed by the addition of slurry at the beginning of composting process with the addition of as much as 1, 2,and 3 liters and the addition of slurry during composting process by adding 0,5;1; and 1,5liters of slurry every 3 days once. At each treatment was added 1 kg of fine compost. The condition which almost meets quality compost by SNI 19-7030-2004 and most precocious and decomposesis the compost with the addition of as much as 1, 5 liters every 3 days where the temperature is 32,8 oC obtained, the water level is 35,1,99 %, the ratio of C / N is 7.58 and pH is 9,59. This thing indicates that the slurry from biogas fermentor can accelerate the maturity of compost making so that it is more easily broken down or decomposed.