bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of Sediment Formed in Biogas Production on Productivity of Crops and Ecologic Character of Production of Onion for Chives
Authors: Romaniuk Waclaw , Polishchuk Victor , Marczuk Andrzej , Titova Liudmyla , Rogovskii Ivan , Borek Kinga 
Published: April 2018

Abstract
The solid fraction, according to many researches, is an effective organic fertilizer, the activity of which is at the level of mineral fertilizers and even exceeds their effectiveness, while the use of the liquid fraction does not always give positive results. In the article the optimal concentration of the liquid fraction in water solution for fertilization during cultivation of onion for chives in soil was determined. Sediment from biogas production was obtained at the thermophilic fermentation (50ºC) of cattle manure in the laboratory institution which operated at the periodical regime of loading. Fermentation lasted 25 days. Seven variants of plant feeding were assessed: clean water (control), mineral fertilizers (solution of ammonium nitrate in water in the concentration of 1:25), unsolved liquid biofuel fraction and mixture of liquid fraction from the postferment with water in concentrations of 1:10, 1:50, 1:100, 1:500. It was determined that the highest efficiency was observed in case of fertilization of plants with the mixture of liquid fraction from postferment with concentration of 1:500. Along with the increase of liquid fraction concentration and fertilization of plants with water solution of mineral fertilizers, onion productivity dropped slightly. Fertilization of plants with the liquid fraction from postferment resulted in fractional dying of plants and reduction of efficiency. The crop control of nitrogen content proved that in case of every day watering of onion with clean water and mixture of liquid fraction with water concentration of 1:100-1:500 did not exceed the maximum admissible concentration which is 800 mg·kg−1. Thus, in case of onion cultivation for chives, taking into consideration the crop growth and low nitrogen content, it is recommended to use the mixture of liquid fraction with water of 1:500 concentration.
Preparing the milk and honey: between ethnography and academia as a racially minoritised academic
Authors: Khan Kamran 
Published: April 2018

Abstract
This paper focuses on the development of an academic of colour between ethnographic fieldwork and becoming an academic. In terms of data collection, this study demonstrates the complexities and multiple positionalities ascribed and assumed within fieldwork which question the stability of the insider/outsider dichotomy. These positionalities range from being a Muslim ‘brother’ to being aligned with Government security. Being Muslim and male also allowed for entrance in areas of the field which were exclusively for Muslim males. While fieldwork presented certain complexities, being a person of colour and Muslim in academia presents many more. A number of studies have demonstrated the structural whiteness of academia and thus, dealing with this as an academic of colour require particular skills and actions. I share my experiences of navigating academia as a person of colour and question the role of whiteness within ethnographically oriented representative groups which are exclusively white and who represent an academic audience for ethnographic scholarship.
Review on Retinal Gliosis Illustrated with a Series of Massive Glioses and Focal Nodular Gliosis Cases in Regard to Potential Pitfalls of Ocular Reactive Tumor-like Lesions of this Type
Authors: Wincewicz Andrzej , Urbaniak-Wasik Sławka , Urbaniak Antoinette , Mościcka-Rylska Marlena , Woltanowska Martyna , Koda Mariusz , Sulkowski Stanislaw , Reszeć Joanna 
Published: April 2018

Abstract
This paper presents a review on retinal gliosis illustrated by series of three cases of patients (a 39-year-old man and a 35-year-old woman with massive retinal gliosis (MRG) and a 51-year-old man with truly focal nodular gliosis of retina) with intraocular tumor-like masses and loss of vision, who recently suffered from painful inflammation of eyeball and who classically had a history of remote ocular trauma, onset of blindness early in lifetime or gradual but progressive loss of sight. The diagnosis of this pathological entity is given for the lesions that are composed of GFAP strongly positive, elongated, fusiform cells consistent with fibrillary astrocytes. As illustrated in cases from our pathological practice, PAS gave positive patchy disseminated reaction in form of cellular densely purplish granules in minority of cells representing glycogen storing. This feature could be consistent with PAS-positive Müller cells that also constitute retinal gliosis as one of cellular components of normal retina that is induced to reactive proliferation. Thus, the paper presents histological background and differential diagnosis of the entity.
Overcoming SMEs Financing and Supply Chain Obstacles by Introducing Supply Chain Finance
Authors: Abbasi Waseem Ahmed , Wang Zongrun , Alsakarneh Asaad 
Published: April 2018

Abstract
Keeping in view the importance of small and medium enterprises (SMEs) for the growth of a nation, we must also keep an eye on the challenges faced by those SMEs. There are various kinds of financing and supply chain options available for SMEs but they still face lot of hindrances. This paper would help us to understand why SMEs are important for the development of any country and how could we help the SMEs from facing challenges related to financing and supply chain. This study further highlights the key financing issues faced by SMEs and also focuses on major supply chain challenges confronted by the SMEs. This study put emphasis on the concept of supply chain finance (SCF) and that how SCF could help SMEs to overcome those challenges. In addition, this paper also points out the benefits and prospects of SMEs. Even though the concept of SCF is still in developing phase but it has shown significant assistance to SMEs in order to grow further.
Xanthii fructus inhibits malignant behaviors of lung cancer cells
Authors: Zhen-fei Wang , Yong-ping Mu , Jun-qing Liang , Yong-yan Liu , Jing-quan Li 
Published: April 2018

Abstract

Objective
This study aimed to investigate the influence of Xanthii fructus on the expression of small noncoding RNA (sncRNA) and the malignant behaviors of lung cancer cells.

Method
A549 cells were treated with Xanthii fructus extract. SncRNA expression was detected by real-time PCR. Proliferation, anchorage-independent growth, and invasion capacities were determined using Cell Counting Kit (CCK)-8, soft agar colony formation, and Matrigel assays, respectively.

Results
Xanthii fructus extract downregulated microRNA (miR)-21 expression and upregulated PIWI-interacting RNA (piRNA)55490 expression. The proliferation, anchorage-independent growth, and invasion capacities of A549 cells were strongly inhibited by the extract.

Conclusion
Xanthii fructus can inhibit the malignant behaviors of lung cancer cells.
Dehydrogenation of Propane to Propylene with Highly Stable Catalysts of Pt-Sn Supported Over Mesoporous Silica KIT-6
Authors: Ruelas-Leyva Jose P. , Mata-Martinez Alejandro , Talavera-López Alfonso , Gómez Sergio A. , Jimenez-Lam Sergio A. , Fuentes Gustavo A. 
Published: April 2018

AbstractDuring several reactions, similar to dehydrogenation of propane to propylene, coke is one of the main reasons for the catalyst deactivation. The coke formation and further deactivation of the catalyst are strongly dependent to the active site in the catalyst and/or the properties of the support. KIT-6 with interconnected porous and high surface area can handle with the coke formation, and can disperse easily the deposited Pt nanoparticles. In this sense, a series of Pt-Sn/KIT-6 catalysts were synthesized with distinct Sn loadings and used in the dehydrogenation of propane. The performance of these catalysts during reaction varied with the Sn loading. The specific activities for propylene formation obtained with the catalysts were comparable to the best result reported in the literature. The nanoparticles present in the catalyst through pretreatment and reaction condition was the Pt-Sn alloy (1:1 atomic ratio), and that alloy is suggested to be the active phase. This Pt-Sn alloy was stable during the entire reaction time, that even in two catalysts containing a considerable amount of coke, deactivation was not observed. Also, the support (KIT-6) with high connectivity helped to avoid deactivation by coke.
Neuro-Cognitive Effects of Acute Tyrosine Administration on Reactive and Proactive Response Inhibition in Healthy Older Adults
Authors: Bloemendaal Mirjam , Froböse Monja Isabel , Wegman Joost , Zandbelt Bram Bastiaan , van de Rest Ondine , Cools Roshan , Aarts Esther 
Published: April 2018

AbstractThe aging brain is characterized by altered dopamine signaling. The amino acid tyrosine, a catecholamine precursor, is known to improve cognitive performance in young adults, especially during high environmental demands. Tyrosine administration might also affect catecholamine transmission in the aging brain, thereby improving cognitive functioning. In healthy older adults, impairments have been demonstrated in two forms of response inhibition: reactive inhibition (outright stopping) and proactive inhibition (anticipatory response slowing) under high information load. However, no study has directly compared the effects of a catecholamine precursor on reactive and load-dependent proactive inhibition. In this study we explored the effects of tyrosine on reactive and proactive response inhibition and signal in dopaminergically innervated fronto-striatal regions. Depending on age, tyrosine might lead to beneficial or detrimental neurocognitive effects. We aimed to address these hypotheses in 24 healthy older human adults (aged 61–72 years) using fMRI in a double blind, counterbalanced, placebo-controlled, within-subject design. Across the group, tyrosine did not alter reactive or proactive inhibition behaviorally but did increase fronto-parietal proactive inhibition-related activation. When taking age into account, tyrosine affected proactive inhibition both behaviorally and neurally. Specifically, increasing age was associated with a greater detrimental effect of tyrosine compared with placebo on proactive slowing. Moreover, with increasing age, tyrosine decreased fronto-striatal and parietal proactive signal, which correlated positively with tyrosine’s effects on proactive slowing. Concluding, tyrosine negatively affected proactive response slowing and associated fronto-striatal activation in an age-dependent manner, highlighting the importance of catecholamines, perhaps particularly dopamine, for proactive response inhibition in older adults.
Growth hormone in combination with leuprorelin in pubertal children with idiopathic short stature
Authors: Benabbad Imane , Rosilio Myriam , Tauber Maité , Paris Emmanuel , Paulsen Anne , Berggren Lovisa , Patel Hiren , Carel Jean-Claude , _ _ 
Published: April 2018

ObjectiveThere is a scarcity of data from randomised controlled trials on the association of growth hormone (GH) with gonadotrophin-releasing hormone agonists in idiopathic short stature (ISS), although this off-label use is common. We aimed to test whether delaying pubertal progression could increase near-adult height (NAH) in GH-treated patients with ISS.MethodsPatients with ISS at puberty onset were randomised to GH with leuprorelin (combination,n = 46) or GH alone (n = 45). NAH standard deviation score (SDS) was the primary outcome measure. The French regulatory authority requested premature discontinuation of study treatments after approximately 2.4 years; patients from France were followed for safety.ResultsMean (s.d.) baseline height SDS was −2.5 (0.5) in both groups, increasing at 2 years to −2.3 (0.6) with combination and −1.8 (0.7) with GH alone. NAH SDS was −1.8 (0.5) with combination (n = 19) and −1.9 (0.8) with GH alone (n = 16). Treatment-emergent adverse events and bone fractures occurred more frequently with combination than GH alone.ConclusionDue to premature discontinuation of treatments, statistical comparison of NAH SDS between the two cohorts was not possible. During the first 2–3 years of treatment, patients treated with the combination grew more slowly than those receiving GH alone. However, mean NAH SDS was similar in the two groups. No new GH-related safety concerns were revealed. A potentially deleterious effect of combined treatment on bone fracture incidence was identified.
Presentación
Authors: Leal Leal Gloria 
Published: April 2018

La publicación de este fascículo, número 19 del 2017, sobre la temática Historia y Trabajo Social, coincide con que durante este año se conmemoran varios hechos históricos que generaron transformaciones sociales, políticas, económicas y culturales significativas para Colombia; no obstante, en este espacio solo nos vamos a referir a dos de ellos, por lo que significaron y por su transcendencia para la comunidad académica y la sociedad. El primer hecho histórico hace referencia a los ciento cincuenta años de la fundación de la Universidad Nacional de Colombia, un acontecimiento que influyó en los debates para la construcción de la nación e incidió en el desarrollo de la educación superior en el país.La creación de la Universidad Nacional de Colombia hizo parte de las reformas propuestas por el liberalismo radical. Su fundación tenía como finalidad contribuir a las transformaciones sociales que requería el país, así como estructurar una propuesta educativa para una formación académica laica e independiente de los lineamientos confesionales de la Iglesia católica. En consecuencia, la Ley 66 del 22 de septiembre de 1867 dio origen a la Universidad con Manuel Ancízar como primer rector y uno de sus fundadores.
Social Diagnosis
Authors: Joya Valbuena Daniela 
Published: April 2018

El diagnóstico social es una de las obras pioneras del Trabajo Social, escrita en la primera mitad del siglo xx en los Estados Unidos, surge luego de varios años de trabajo de las Charity Organization Societies (cos) y de distintas agencias de asistencia social en este país. Dichas instituciones buscaban responder a los problemas sociales producidos por la industrialización y mejorar las condiciones de vida de obreros e inmigrantes provenientes de Europa.Cien años después de la primera edición y publicación de esta obra, el Trabajo Social ha recorrido un camino de profesionalización, de preguntarse sobre su ser y quehacer, replanteando constantemente su lugar en la sociedad desde diferentes perspectivas. En estas reflexiones, el trabajo de las pioneras norteamericanas y su obra han sido acogidos -o rechazados- en diferentes niveles; por ello, en esta reseña se tomó la última reimpresión del texto, en su idioma original, de manera que puedan recogerse sus elementos principales y mirarlos a la luz de las discusiones que continúan vigentes al interior de nuestra profesión.
Kompozit malzeme üretiminde kullanılan polyesterlerin mekanik, termal ve kimyasal özelliklerine başlatıcı etkisinin incelenmesi
Authors: POYRAZ Bayram 
Published: April 2018

Polimer esaslı kompozitlerde matris malzemesi olarak kullanılan doymamış poliester reçineleri hızlı kürleşme süresi, fiziksel koşullara ve kimyasal maddelere karşı dirençli olması ve yüksek mekanik özelliklerinden dolayı endüstride yaygın bir şekilde kullanılmaktadır. Polimerleşme reaksiyonu için gerekli olan başlatıcının (kürleştiricinin) gerekli oranının belirlenmesi, istenilen mekanik özelliklere sahip bir kompozit malzemenin üretilmesi için büyük önem taşımaktadır. Bu amaçla çalışmada farklı oranlarda başlatıcı kullanılarak üretilen kompozit malzeme üretiminde kullanılan polyesterlerin fiziksel, kimyasal, termal ve mekanik özellikleri incelenmiştir. Çalışma kapsamında reçine olarak izoftalik ve ortoftalik polyester reçineleri kullanılmıştır. Kullanılan reçinelerin içerisine hacimce %1, %1,5, %2 ve %2,5 oranlarında metil etil keton peroksit (MEKP) başlatıcısı ilave edilmiştir. Reaksiyonun verimini ve hızını artırmak için %1 oranında kobalt oktaoat (C16H30CoO4) katalizör (hızlandırıcı) olarak ilave edilmiştir. Çalışma kapsamında fiziksel özellikleri belirlemek için jelleşme sıcaklığı, jelleşme süresi, pik ekzoterm sıcaklığı ve viskozite analizleri yapılmıştır. Termal kararlılığı belirlemek için termogravimetrik (TGA) analizler gerçekleştirilmiştir. Polimerizasyon sonucundaki moleküler etkileşimleri incelemek için FT-IR cihazı kullanılmıştır. Çekme dayanımı, çekme E-modulü, eğilme dayanımı ve eğilme E-modulü gibi mekanik özellikleri belirlemek için universal test cihazı kullanılmıştır. Deneysel çalışmalarda elde edilen sonuçlar değerlendirilerek optimum özelliklere ve performans değerlerine sahip reçine türü ve başlatıcı oranı belirlenmiştir. Yapılan çalışmada, başlatıcı oranının miktarının değiştirilmesi ile poliester bazlı kompozitlerin mekanik özelliklerinin değiştiği gözlenmiştir.
Mikrotremor verisi kullanılarak zeminlerin dinamik büyütme faktörü değerlerinin hesaplanması: İzmir (Kuzey) örneği
Authors: TUNÇEL Aykut , ÖZDAĞ Özkan Cevdet , PAMUK Eren , AKGÜN Mustafa 
Published: April 2018

Günümüzde yaygın kullanım alanı olan tek istasyon mikrotremor yöntemi veri toplama kolaylığının yanı sıra verdiği sonuçların zenginliği açısından da etkili bir yöntemdir. Bu çalışmada 112 noktada toplanan tek istasyon mikrotremor verisi ile çalışma alanında meydana gelebilecek bir senaryo depremi parametrelerinin ortak değerlendirilmesi sonucunda çalışma alanına ait dinamik büyütme faktörü (DBF) dağılımları elde edilmiştir. Çalışma alanına ait zemin hâkim titreşim periyodu, dinamik büyütme faktörü, jeoloji ve topografya verilerinin çalışma alanındaki dağılımlarının aralarındaki uyumu incelenmiştir. Alüvyon birimin bulunduğu deniz seviyesine yakın bölgelerde genellikle 2 veya 2’den daha büyük dinamik büyütme faktörü değerleri elde edilmiştir. Volkanik kayaçlardan oluşan ve yüksek kotlarda yer alan bölgelerde ise 2 değerinden daha düşük dinamik büyütme faktörü değerleri elde edilmiştir. Araştırma alanında görülen en küçük büyütme değeri 1,20 iken maksimum büyütme değerleri 3 civarındandır. Dinamik büyütme faktörü kaynağından gelen depremin zemin tarafından ne kadar büyütüleceğinin bir oranı olarak da tanımlanabilir ayrıca DBF değeri tek bir pik değeri değil tüm spektrumu temsil eden bir parametredir. Bu veriler sonucunda yüksek dinamik büyütme faktörü ve zemin hâkim titreşim periyodu (ZHTP) değerine sahip olan zeminlerin yapılaşma açısından daha tehlikeli olduğu göz ardı edilmeden bina tasarımlarının yapılması gerekmektedir.
Işınım soğutma sistemlerindeki yoğuşma probleminin çözümüne yönelik yeni bir yöntem ve ısıl konfor incelemesi
Authors: KOCA Aliihsan 
Published: April 2018

Bu çalışmada, ışınım soğutma sistemlerinde görülen yoğuşma probleminin çözümüne yönelik, pasif nem alma paneli önerilmiştir. Bu yöntem, var olan nem kontrolü çözümlerine göre ekonomik olmasının yanında, ışınım soğutma sistemlerine kolayca entegre edilebilecek yapıdadır. Çalışma prensibi; mahal içerisindeki duyulur ısı yükü ışınım soğutma sistemi ile karşılanırken, mahaldeki gizli ve duyulur ısının bir kısmı yoğuşturucu panelle karşılanacaktır. Yoğuşturucu panel, ışınım sistemine seri bir şekilde bağlanarak aynı tesisattan beslenecektir. Yoğuşturucu panelin isi iletim katsayısı yüksek malzemeden üretildiğinden, aynı su sıcaklığında yoğuşturucu panel yüzeyi çiğ noktası sıcaklığı altında kalırken, ışınım panellerinin yüzeyi üzerinde kalacaktır. Bu sayede yoğuşma sadece yoğuşturucu panel yüzeyinde gerçekleşecektir. Bu çalışmada, önerilen yoğuşturucu panelin ısıl konfor performansı deneysel olarak incelenmiştir. Bu amaçla, gerçek boyutlarda bir odayı temsil eden çevre ve oda ısıl şartları hassas bir şekilde kontrol edilebilen bir deney odası kurulmuştur. Deneylerde, aynı başlangıç hava sıcaklığı ve bağıl nem oranı için, farklı yoğuşturucu panel yüzey sıcaklıkları ve aynı yoğuşturucu panel yüzey sıcaklığı için farklı başlangıç bağıl nem oranları incelenmiştir. Elde edilen sonuçlar kullanılarak, mahal içerisindeki hava sıcaklık, bağıl nem oranı dağılımları ve genel konfor şartları irdelenmiştir. Ayrıca yoğuşturucu panel tüm deneysel durumlarda, mahal içerisini ideal konfor şartlarına getirebilmiştir.
Experimental Study on the Low-Cost Iron Wire Fiber Reinforced Asphalt Concrete
Authors: KÖFTECİ Sevil 
Published: April 2018

The usability of low-cost iron wire fiber
for the reinforcement of hot asphalt mixtures was investigated with
experimental tests in this study. Five mixtures having different fiber content
of 1%, 3%, 5%, 7%, 9% and control mixtures were prepared. Characteristic
properties of bitumen, aggregate and iron wire used in the mixtures were
determined by thermogravimetric analysis (TGA), conventional bitumen tests,
conventional aggregate tests and metal tensile tests. After optimum bitumen
rate was determined, Marshall Stability
Test, Cantabro Tests were performed in
order to measure perfomance of the mixtures. Additionaly, moisture
susceptibility of samples was determined with indirect tensile test. As a
result of indirect tensile tests, indirect tensile strength (St) and
indirect tensile strength ratio (ITSR) values were calculated. The results of
the investigations indicate that the addition low-cost iron fiber in the amount
of 1%-3% improved performance of asphalt mixtures. When the used fiber rate was
increased more than 3%, clustering created by fibers was observed by using
stereo-microscobe. Consequently, air voids were increased and bitumen-aggregate
interaction was decreased. Increasing fiber ratio especially, at 7-9 percent
caused compressing, durability and stability problems in the mixture.
DETERMINAN MEKANISME INTERNAL CORPORATE GOVERNANCE TERHADAP AGENCY COST: STUDI PADA PERUSAHAAN PUBLIK DI BURSA EFEK INDONESIA
Authors: Setyaningsih Nina Dwi 
Published: April 2018

Secara alamiah, perusahaan dalam menjalankan aktivitas bisnis akan dipengaruhi oleh suatu kerangka tata kelola (corporate governance framework). Kerangka tersebut dibentuk hukum dan regulasi, anggaran dasar, kode etik, perjanjian-perjanjian yang dibuat dengan kreditur, konsumen dan lainnya. Agar perusahaan memiliki kelangsungan jangka panjang, shareholder dan stakeholder perlu mempertimbangkan tata kelola yang baik (good corporate governance). Penelitian ini bertujuan untuk memperoleh bukti empiris tentang pengaruh mekanisme internal corporate governance yang meliputi struktur kepemilikan dan ukuran dewan direksi terhadap biaya keagenan. Temuan penting penelitian ini adalah kepemilikan institusional belum efektif digunakan sebagai alat untuk memonitor menejemen dalam meningkatkan efisiensi pemanfaatan aktiva perusahaan dan ukuran dewan direksi dapat digunakan sebagai alat untuk meningkatkan efisiensi pemanfaatan aktiva perusahaan sebagai alat untuk meningkatkan kemakmuran pemegang saham dan dapat dijadikan variabel dalam mengurangi agency cost.