bluuebunny/crossref_metadata_2025 huggingface dataset:
Physicochemical approaches to gold and silver work, an overview: Searching for technologies, tracing routes, attempting to preserve
Authors: Guerra Maria F.
Published: October 2018

Gold alloys and silver alloys have always been widely employed in the production of significant objects. With high reflectivity, precious metals are perceived as both materials and colours, and can be skilfully combined to produce metallic polychrome effects. Because their structure and composition contain information on their manufacture, use, disclaim and degradation, items in gold and in silver enclose major information on the technologies employed by past societies and on exchange networks. This information can be acquired using appropriate analytical protocols, established according to the nature of the query and the characteristics of the objects.

By using physicochemical techniques, it is possible to identify the technologies, materials and tools used by the artisan and, in particular cases, to situate the sources of raw materials and the workshops producing the objects, as well as to follow the trade routes. The aim of this work is to outline major achievements in the study of goldwork and silverwork based on the different physicochemical methods that are available, and to refer the analytical difficulties that have to be faced when studying objects made from precious metals. Based on several examples, three topics are addressed. The first concerns the major role of the techniques of exam when describing shaping, decorating, assembling and finishing; the second considers the search for metallic polychrome effects in some cultural areas; and the third discusses the challenging question of fingerprinting. A fourth section is dedicated to a short reflection on the difficulties related to the identification of the atmospheric corrosion mechanisms of precious metals.
Substituent effects on linear and nonlinear optical properties of fluorescent (E)-2-(4-halophenyl)-7-arlstyrylimidazo[1,2-A]pyridine: spectroscopic and computational methods
Authors: Jadhav Siddheshwar D. , Ramasami Ponnadurai , Sekar Nagaiyan
Published: October 2018

Effects of alkylamino and bromo substituents on imidazo[1,2-a]pyridines containing donor-π-acceptor type groups were comprehensively investigated for their linear and nonlinear optical properties by solvatochromic and DFT (CAM-B3LYP and BHandHLYP) methods. The difference between the ground and excited dipole moments as well as their ratios obtained by solvatochromic analysis indicate that the excited state is more polar than the ground state for both the bromo and diethyl amino derivative. More than twofold enhancement in the excited state dipole moments was observed as revealed by the difference and ratio of dipole moment upon the introduction of alkylamino donor group and these suggest large intramolecular charge transfer in the dyes. Stabilization energy above 20 kJ/mol was observed for large number of electron donor–acceptor interactions in Natural Bonding Orbital (NBO) analysis. Bond length alternation (BLA) and Bond order alternation (BOA) values tend to zero suggesting a high degree of polarization in the dyes. Enhancement in mean polarizability (α0), first hyperpolarizability (β0) and second static hyperpolarizabilities (
$\bar \gamma$) were observed by the introduction of alkylamino and bromo group in place of chloro in spite of the fact that Hammett constant of chloro and bromo are the same. The dyes have fundamental and intrinsic properties within the Hamiltonian limits. The two-photon absorption cross section value (≈100 GM) is comparable with LDS-698, a commercial TPA dye. This investigation is important for understanding the electronic structure of imidazo[1,2-a]pyridine with active functional groups and extending the potential for optical applications.
Is mathematical knowledge a precedent for modal knowledge?: A novel objection to Lewis’s modal epistemology
Authors: Lim Joungbin
Published: October 2018

The goal of this paper is to raise a novel objection to Lewis’s modal realist epistemology. After reformulating his modal epistemology, I shall argue that his view that we have necessary knowledge of the existence of counterparts ends up with an absurdity. Specifically, his analogy between mathematical knowledge and modal knowledge leads to an unpleasant conclusion that one’s counterpart exists in all possible worlds. My argument shows that if Lewis’s modal realism is true, we cannot know what is possible. Conversely, if we can know what is possible, his modal realism is false. In the remainder of the paper, I shall consider and block possible objections to my argument.
Pain is associated with reduced quality of life and functional status in patients with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Authors: Strand Elin Bolle , Mengshoel Anne Marit , Sandvik Leiv , Helland Ingrid B. , Abraham Semhar , Nes Lise Solberg
Published: October 2018

Background and aims

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is challenging to live with, often accompanied by pervasive fatigue and pain, accompanied by decreased quality of life (QoL) as well as anxiety and/or depression. Associations between higher pain, lower QoL and higher anxiety and depression have been shown in patients with various chronic pain disorders. Few studies have however examined such associations in a sample of patients with ME/CFS. The aims of the current study were to examine the impact of pain levels and compare levels of pain, health related QoL, anxiety and depression between patients with ME/CFS and healthy controls. In addition, the study aimed and to examine these relationships within the patient group only.

Methods

This is a cross-sectional questionnaire based study comparing 87 well-diagnosed patients with ME/CFS with 94 healthy controls. The De Paul Symptom Questionnaire (DSQ), the Medical Outcomes Study Short-Form Surveys (SF-36) and the Hospital Anxiety and Depression Scale (HADS) were used to examine and compare pain, physical function, QoL, anxiety and depression in patients and healthy controls. Further the pain variables were divided into pain total, pain intensity and a pain frequency score for analyses of the above mentioned variables within the patient group only.

Results

Significantly higher levels of pain, anxiety and depression, and lower levels of QoL were found in the patient group compared with healthy controls. For the patient group alone, pain was significantly associated with lower QoL in terms of physical functioning, bodily pain, general health functioning, vitality and social functioning capacity. In this patient sample, only frequency of joint pain showed significant difference in psychological variables such as depression and anxiety – depression combined.

Conclusions

ME/CFS patients differ significantly from healthy controls in pain, health related QoL, anxiety and depression. Pain is significantly associated with reduced QoL and overall a lower level of functioning. The relation between pain and anxiety and depression appears less clear.

Implications

Pain is for many ME/CFS patients associated with reduced physical functioning and reduced QoL. A thorough pain assessment can therefore be essential for clinicians, and subsequent medical pain treatment combined with good pain coping skills may increase functioning level and QoL for these patients. The link between joint pain and psychological factors should also be focused in clinical practice in terms of mapping and counseling. Pain should be further examined to understand the importance it may have for functioning level as reduced function is a main criteria when diagnosing the patients.
Generalised Sasa–Satsuma Equation: Densities Approach to New Infinite Hierarchy of Integrable Evolution Equations
Authors: Ankiewicz A. , Bandelow U. , Akhmediev N.
Published: October 2018

We derive the new infinite Sasa–Satsuma hierarchy of evolution equations using an invariant densities approach. Being significantly simpler than the Lax-pair technique, this approach does not involve ponderous 3 × 3 matrices. Moreover, it allows us to explicitly obtain operators of many orders involved in the time evolution of the Sasa–Satsuma hierarchy functionals. All these operators are parts of a generalised Sasa–Satsuma equation of infinitely high order. They enter this equation with independent arbitrary real coefficients that govern the evolution pattern of this multiparameter dynamical system.
How the Level of Reward Awareness Changes the Computational and Electrophysiological Signatures of Reinforcement Learning
Authors: Correa Camile M.C. , Noorman Samuel , Jiang Jun , Palminteri Stefano , Cohen Michael X. , Lebreton Maël , van Gaal Simon
Published: October 2018

The extent to which subjective awareness influences reward processing, and thereby affects future decisions, is currently largely unknown. In the present report, we investigated this question in a reinforcement learning framework, combining perceptual masking, computational modeling, and electroencephalographic recordings (human male and female participants). Our results indicate that degrading the visibility of the reward decreased, without completely obliterating, the ability of participants to learn from outcomes, but concurrently increased their tendency to repeat previous choices. We dissociated electrophysiological signatures evoked by the reward-based learning processes from those elicited by the reward-independent repetition of previous choices and showed that these neural activities were significantly modulated by reward visibility. Overall, this report sheds new light on the neural computations underlying reward-based learning and decision-making and highlights that awareness is beneficial for the trial-by-trial adjustment of decision-making strategies.

SIGNIFICANCE STATEMENTThe notion of reward is strongly associated with subjective evaluation, related to conscious processes such as “pleasure,” “liking,” and “wanting.” Here we show that degrading reward visibility in a reinforcement learning task decreases, without completely obliterating, the ability of participants to learn from outcomes, but concurrently increases subjects' tendency to repeat previous choices. Electrophysiological recordings, in combination with computational modeling, show that neural activities were significantly modulated by reward visibility. Overall, we dissociate different neural computations underlying reward-based learning and decision-making, which highlights a beneficial role of reward awareness in adjusting decision-making strategies.
Conversion and the Idea of the Secret
Authors: Viswanathan Gauri
Published: October 2018

Gauri Viswanathan, “Conversion and the Idea of the Secret” (pp. 161–186)

Obsessed with the notion of the secret in his writings on religion, Jacques Derrida uncannily evokes a predecessor with whom he has rarely, if at all, been compared—the Russian occultist Helena Petrovna Blavatsky. This essay argues that Blavatsky’s occult writings set the stage for the kinds of speculations on crypto-conversion, conscience, and responsibility that subsequently engaged Derrida. Like Blavatsky, Derrida saw conversion not as change but as retaining whatever it displaces in the form of a secret, persisting as an enduring reminder of supplanted religious beliefs. While Derrida was more interested in conversion as a form of repression that mutually constitutes the old and the new, Blavatsky held a broader and more dynamic view of conversion-as-repression: in describing Christianity’s battle against the heterogeneous belief-systems it eventually supplanted, she sought to illuminate conversion as a larger process well beyond the individual and involving religious expansion and consolidation. The essay culminates in a close reading of an occult text, W. B. Yeats’s “The Manuscript of ‘Leo Africanus,’” that exemplifies the problematics of crypto-conversion as delineated by Blavatsky and Derrida in their respective ways. “Leo Africanus” stages Yeats’s encounter with a dead spirit alternatively grasped as his anti-self and historical conscience. A breakthrough in understanding allows Yeats to acknowledge an occluded history—his as much as that of his deceased interlocutor—that can only be told in the terms of crypto-conversion, in this instance of a sixteenth-century African slave forcibly converted to Christianity and turned into a native informant of African history and geography.
COMPOSICIÓN Y ESTRUCTURA DE LA COMUNIDAD DE OCTOCORALES EN LOS BAJOS DE SANCHO PARDO, ARRECIFE DE LOS COLORADOS, CUBA
Authors: Pérez-Angulo Alejandro , Hernández Daril de la Nuez
Published: October 2018

Se estudiaron la composición y estructura de las comunidades de octocorales en cinco sitios localizados en los Bajos de Sancho Pardo (arrecife de Los Colorados (NW Cuba) en agosto del 2010. Se empleó como unidad de muestreo un marco cuadrado de un metro de lado. En total se estudiaron 11 zonas del arrecife frontal, dos zonas traseras y una cresta. Se identificaron 34 especies de gorgonias de 2687 colonias. En el arrecife frontal, Pseudopterogorgia americana y Pseudopterogorgia elisabethae fueron las especies dominantes, mientras que en la zona trasera lo hicieron Briareum asbestinum y Pseudopterogorgia bipinnata. En la cresta arrecifal predominaron Gorgonia ventalina y Plexaura homomalla. Se encontraron diferencias significativas (P = 0.05) para la densidad de gorgonias entre localidades del arrecife frontal. Los resultados de los índices de heterogeneidad y de equitatividad permiten inferir que un 79% de las localidades se correspondieron con ambientes favorables o muy favorables y el 64% indicaron ambientes constantes o casi constantes. En el 79% de las localidades se infirió una tensión hidrodinámica baja y en el resto resultó entre moderada y alta en zonas someras de la cresta y el arrecife frontal. El estado general de la comunidad de octocorales fue bueno según los valores de densidad y abundancia de especies registrados, aunque se evidencia que en las zonas al oeste hay un mayor cubrimiento por macroalgas carnosas, que puede constituir un factor que limita el reclutamiento. ABSTRACTThe composition and structure of octocoral communities was studied in five locations in Bajos de Sancho Pardo (Los Colorados reefs (NW Cuba)) in August 2010. Quadrants measuring one square meter were used as sampling units. A total of 11 fore reefs, two rear zones and one reef crest were studied. Thirty-four species of gorgonians were identified in 2687 colonies. Predominant species included Pseudopterogorgia americana and Pseudopterogorgia elisabethae in the fore reef zone, Briareum asbestinum and Pseudopterogorgia bipinnata in the rear reef, and Gorgonia ventalina and Plexaura homomalla in the reef crest. Significant differences (P = 0.05) were found in the density of gorgonians between fore reef stations. Based on the results of the heterogeneity and evenness indexes, it can be inferred that 79% of the stations were consistent with favorable or very favorable environments and 64% with constant or nearly constant environments. Hydrodynamic stress was low in 79% of the stations, while it was moderate to high in shallow areas of the crest and fore reef. The overall condition of the octocoral community was good according to recorded values of species density and abundance, although it is evident that in the western areas there is greater coverage by fleshy macroalgae, which may be a limiting factor for growth.
DIVERSIDAD Y ABUNDANCIA DE LAS ESPONJAS DE LOS BAJOS DE SANCHO PARDO, ARCHIPIÉLAGO DE LOS COLORADOS, CUBA
Authors: Hernández Daril de la Nuez , Busutil Linnet , Pérez-Angulo Alejandro
Published: October 2018

Se establecieron 12 estaciones de muestreo enperfiles batimétricos (5, 10 y 15 m) de cinco sitios ubicados en los Bajos de Sancho Pardo, Archipiélago de Los Colorados, región noroccidental de Cuba. Se empleó el marco cuadrado de 1 m de lado como unidad de muestreo, el cual se colocó aleatoriamente en 30 posiciones por estación. Fueron identificadas 50 especies de esponjas de la clase Demospongiae, distribuidas en 33 géneros, 10 órdenes y 22 familias. En las estaciones más someras predominó la especie Cliona aprica, mientras que en las más profundas lo hicieron Aplysina cauliformis, A. fistularis forma insularis e Ircinia felix. La riqueza de especies fue mayor en las estaciones más profundas. El índice de contaminación, calculado a partir de las abundancias de las esponjas indicadoras de este factor, no fue alto. La densidad de esponjas mostró diferencias significativas entre estaciones, pero no fue particularmente alta en la región, al parecer debido al estrés provocado por el fuerte oleaje durante los frentes fríos invernales y los frecuentes e intensos ciclones que afectan a esa región. ABSTRACT Twelve sampling stations were established with bathymetric profiles (5, 10 and 15 m) in five locations in Bajos de Sancho Pardo, Los Colorados Archipelago, north-western region of Cuba. A 1x1m square quadrant was used as a sampling unit, with 30 quadrants being sampled per station. Fifty species of sponges were identified belonging to class Demospongiae, distributed in 33 genera, 10 orders and 22 families. In the shallowest stations the prevailing species was Cliona aprica, while Aplysina cauliformis, A. fistularis f. insularis and Ircinia felix prevailed in the deeper stations. Species richness tended to increase with depth. The contamination index, which was calculated based on the abundance of sponges indicating this factor, was not high. Sponge density showed significant differences between stations; however, it was not particularly high in the region maybe due to the stress induced by strong waves during winter cold fronts and frequent,intense cyclones that affect the region.
Buggeln, G., C. Paine and S. B. Plate (eds.) 'Religion in Museums: Global and Multidisciplinary Perspectives'
Authors: Whitehead Amy
Published: October 2018

Buggeln, G., C. Paine and S. B. Plate (eds) 2017. Religion in Museums: Global and Multidisciplinary Perspectives. London: Bloomsbury. iv + 265pp. £58.50. ISBN: 978-1-4742-5552-3 (hbk).
Short- and long-term results of low cost trauma training in a low-income resource-poor country
Authors: Oussi Ninos , Sadeghi Mitra , Qureshi Javeria S. , Mabedi Charles , Elbe Peter , Enochsson Lars
Published: October 2018

This article was migrated. The article was marked as recommended. Introduction: Malawi is among the world's least developed countries. There are 2.1 physicians per 100 000 people and a high trauma-related mortality and morbidity. The lack of healthcare resources requires essential high capacity trauma training at a low cost. Methods: A one-week trauma course was conducted at the Kamuzu Central Hospital in Lilongwe, Malawi. 15 students (13 interns and 2 chief nurses) attended the course. They were trained in initial trauma care, triage and basic practical procedures. Thereafter, evaluated through an identical multiple-choice exam, pre- (PRE) and post-course (POE), following a similar exam 6 months post-course (6MPOE). Prior to, and after the course a confidence-based questionnaire was completed. Results: The participants presented significantly higher test-scores after the course in both POE (26.2±3.2 vs. 21.8±3.1; p>0.001) and 6MPOE (25.7±2.4 vs. 21.8±3.1; p 0.003). We also identified the nurses to improve significantly after the course. The highest score of improvement was 27.3%. Higher confidence scores were noticed after the course. Conclusion: This study shows that any healthcare personnel in a low-income setting could benefit from a designed course in trauma management. Thus, we emphasize that healthcare staff undertake similar course to orient towards correct management and assessment of initial trauma patients.
Logistics behind the OSCE in undergraduate medical education and an experience at a Caribbean Medical School
Authors: Arja Sireesha Bala , Arja Sateesh B. , Ramey Jesse , Ahmed Tarig Fadlallah Altahir , Ponnusamy Kumar , Morusupalli Venkata Raghavendrarao
Published: October 2018

This article was migrated. The article was not marked as recommended. Current interest regarding holistic assessments in medical education is high. This is especially the case for use during clinical rotations and post-graduate residency programs. Holistic assessments consist of the complete process of assessing students in history taking, data gathering, and physical examination of the patient. In addition to knowledge of the medical sciences, communication and patient interaction skills are a critical part of these drills. Holistic assessment strategy differs from objective structured clinical examinations (OSCE) as it is a contiguous process compared to OSCE which assesses in compartments. The compartmental approach of OSCE is still effective in providing if the examinations are conducted correctly. To date, OSCE is the most comprehensive student evaluation technique following clinical rotations. Conducting the OSCE and standardized patient assessments are challenging for medical schools with limited resources, but achievable with proper planning. Those resources include standardized patients, physicians, faculty members, and adequately equipped physical facilities. Both the standardized patients and examiners require training. In spite of the challenges, this program has observed that proper use of OSCE exams done with a logistical approach is feasible and beneficial in our medical teaching environment.
Yükseköğretim Kurumlarında Memnuniyet Kavramı: Kuramsal Bir Derleme
Authors: Yüksel Cenk Arsun , Bilgen İlknur , Yaşbay Kobal Hava
Published: October 2018

Bu çalışmanın amacı,
memnuniyet kavramının ve bu kavramla ilişkili faktörlerin yükseköğretim
kurumları bakımından kapsamlı biçimde irdelenmesidir. Bu amacı
gerçekleştirebilmek üzere yükseköğretim kurumlarının paydaşlarının
belirlenmesi, memnuniyete etki eden faktörlerin ortaya konması ve farklı bilim
dallarında araştırma konusu olan müşteri memnuniyeti, hizmet kalitesi, kurumsal
imaj, kurumsal itibar ve paydaş kavramlarının yükseköğretim kurumlarına
uyarlanabilir oluşunun ilgili ulusal ve uluslararası yazına dayanılarak ispat
edilmesi hedeflenmektedir. Çalışmanın cevap aradığı temel sorular şunlardır:
Yükseköğretim kurumlarında memnuniyeti artırmak üzere hangi konulara eğilmek
faydalı olabilir? Memnuniyet düzeyi düşük olan yükseköğretim kurumlarının örnek
alabileceği unsurlar nelerdir? Memnuniyet üzerindeki müdahale edilemeyen dışsal
faktörlerin olumsuz etkileri nasıl bertaraf edilebilir? Çalışmada elde edilen
bilgiler doğrultusunda, yükseköğretim kurumlarında öğrencilerin yanı sıra, tüm
paydaşların beklenti ve memnuniyet düzeylerinin dikkate alınması, yükseköğretim
kurumu yöneticilerinin bilgi, deneyim ve talep paylaşımına açık olmaları ve
stratejik kararlarda tüm paydaş gruplarının gözetilmesi önerilmektedir.
17. Yüzyıla Âit Özgün Bir Mûsikî Risâlesinde Mûsikînin Te’sîrine Dâir Bilgiler
Authors: GENÇOĞLU Mehmet Sait Halim
Published: October 2018

Mûsikî
tarihine ilişkin çeşitli bilgileri elde ettiğimiz, aydınlatıcı ve özgün
bilgiler sağlayan kaynakların başında mûsikî risâleleri gelmektedir.
Risâlelerde mûsikî nazariyâtına, çalgılara, mûsikîşinaslara, mûsikînin te’sîri
vb. gibi çeşitli konulara ilişkin bilgi elde etmek mümkündür. Mûsikî
yazıcılığına tarihsel olarak bakıldığında; 9. yüzyıldan 19. yüzyıla kadar
birçok mûsikî bilgini mûsikînin te’sîri husûsu üzerinde durmuş ve bu maksatla
makamları, usûlleri vb. gibi mûsikî unsurlarını sıhhî durumlarla veya insan ve
doğaya özgü özelliklerle ilişkilendirmişlerdir. Elyazması mûsikî kaynakları
evreninden çalışmamızın konusunu teşkil eden, “Risâle-i Mûsikî” adı verilen bu
özgün kaynak; müzikoloji alanına kazandırılmak, mûsikî çalışmalarına katkı
sağlamak ve risâlede bulunan mûsikînin te’sîriyle ilgili bilgileri incelemek
amacıyla örneklem olarak seçilmiştir. Bu risâlenin incelenmesinde çeviri ve
bilgiyi sınıflandırma (sistematik müzikoloji) yöntemleri kullanılmıştır.
Makalenin esas amacını, risâlenin tanıtılması yanında mûsikî nazarîyâtıyla,
mûsikînin te’sîriyle, ud ve çeng çalgılarıyla ilgili içerdiği birçok bilginin
Türk müzikolojisine kazandırılması teşkil etmektedir. Bunun için yapılan
çeviri- inceleme çalışmaları arasında dikkati çeken “mûsikinin te’sîri”
konusuna öncelik verilmiştir.
Ağrı Halkevi ve Tarihsel Gelişimi
Authors: AYDIN Harun
Published: October 2018

Türkiye’de ilk olarak 19 Şubat
1932 tarihinde açılan Halkevleri, Atatürkçü fikirlerin unsurlarıyla bütünleşen
Cumhuriyet’in çağdaşlaşma düşüncesinin, toplumsal ve kültürel yönünü ilerletmek
gibi çok önemli bir görev üstlenmiştir. 
Halkevleri önceleri sadece 14 ilde açılmış, ardından Türkiye genelinde
örgütlerini oluşturarak çalışmalarını devam ettirmiştir. Halkevleri 1951
yılında kapatıldıktan sonra önceki işlevlerini devam ettirmiyor olsalar da
mevcut yapıları ve kültürel birikimleriyle günümüzde halen etkisini
sürdürmektedir. Bu bağlamda, 23 Şubat 1934 tarihinde açılan ve faaliyete geçen
Ağrı Halkevi, Ağrı tarihinin ve kültürünün gelişmesinde önemli roller
üstlenmiştir.

Halkevi’nin kurulmasıyla beraber mezkur şehirde
eğitime büyük önem verilmiştir. Cumhuriyet’in eğitim ve kültür kurumu olan
Halkevleri ülke de yaygınlaşmasıyla beraber halkın gelişimine büyük katkı
sağlamıştır Ağrı Halkevi’nde birçok şube açılmış ve bunlar kentin kültürel
gelişimine önemli katkılarda bulunmuştur. Bu kapsamda araştırmanın amacı; Ağrı
Halkevi ve çalışmalarını, Ağrı’nın kent kültürünün ve kimliğinin oluşumundaki
etkilerini ortaya çıkarmaktır. Bu çalışma başta Cumhuriyet Arşivi belgeleri
olmak üzere ulusal basın ile araştırma ve inceleme eserlerinden yararlanılarak
oluşturulmuştur..
Hasan Hilmi Dağıstanî’nin Zikirle İle İlgili Görüşleri
Authors: GÜL Halim
Published: October 2018

İnsanın Hakk'a ulaşması
kelime-i tevhid ile olur. Çünkü derviş fena ve beka mertebesine ancak Hak ile
arasındaki perdeleri kaldırarak ulaşır. Perde nefy (la ilahe) ile kaldırılır,
(illallah) ile Hakk'ı ispat gerçekleşir. Bu, dervişin miraç yoludur. Sûfîler,
zikri insanın benlikten sıyrılıp fena vadilerine dalmanın ve vuslata ermenin
yollarından biri olarak görmektedirler. Bu anlamda zikir salikin değişim ve
dönüşümünü sağlayan manevi bir programdır.

Bu çalışmamızda tasavvuf
eğitiminde önemli bir yeri olan ve bütün tarikatların seyr ü sülüklerinde
kullandıkları zikir kavramını Nakşî ve Şazelî şeyhi Hasan Hilmi Efendi’nin
perspektifinden incelemeye çalıştık.
Dış Ticaret Girişimciliği Potansiyeli Bağlamında Kamu Ve Vakıf Üniversitelerinin Karşılaştırılması
Authors: SAYGILI Metin , ERSOY Ahmet Yağmur
Published: October 2018

Bu araştırmanın amacı,
potansiyel dış ticaret girişimcisi olarak ele alınan ve üniversitelerin (kamu[1] ve vakıf[2])
uluslararası ticaret bölümlerinde lisans düzeyinde öğrenim gören öğrencilerin
dış ticaret girişimciliğine yönelik eğilimlerini ve dış ticaret girişim
farkındalıklarını incelemektir. Bu araştırma, nicel araştırma yöntemine göre
tasarlanmış bir araştırmadır. Araştırmanın verileri kolayda örnekleme yöntemi
benimsenerek 278 öğrenciden elde edilmiştir.

Araştırmanın
sonuçları, vakıf üniversitesinde öğrenim gören öğrencilerin % 70’nin kendi
işletmesini kurmak isteyen girişimci adayı olduğunu ortaya koymaktadır. Kamu
üniversitesinde öğrenim gören öğrencilerin yaklaşık %65’i ise özel sektöre
yönelmenin daha uygun olduğunu vurgulamışlardır. Dış ticaret girişimcilik eğilimi vakıf üniversitesinde öğrenim gören
öğrencilerde kamu üniversitesine göre daha yüksek düzeydedir.
Rus Savaş Uçağının Düşürülmesi İle İlgili Yayınlanan Haberlerde Söylem Ve İdeoloji
Authors: İNCE Mustafa , KOÇAK Mevlut Can
Published: October 2018

Çok eskiye dayanan
Türkiye-Rusya ilişkileri zaman zaman kesintiye uğramış olsa da bu iki ülke uzun
süreli bir iş birliğini arzu etmiştir. Ancak son
dönemlerde yaşanan bazı olaylar Türk-Rus ilişkilerinin iyice gerilmesine sebep
olmuştur. Önce 22 Haziran 2012’de Türkiye’ye ait bir F-4 uçağının Suriye
tarafından düşürülmesi ilişkileri yaralamış, daha sonra ise 24 Kasım 2015’te
Rusya’ya ait SU-24 uçağının Türkiye tarafından düşürülmesi iki ülke arasındaki
bağları tamamen koparmıştı. Bu olayların ardından her iki ülkede hem siyasi hem
de toplumsal anlamda önemli gelişmeler yaşanmış, mikro ve makro düzeyde
birtakım kararlar alınmıştı. Alınan kararlara ilişkin siyasal ve toplumsal
tepkinin yansımasını ise her iki ülke basınında görmek mümkündü. Bu çalışmanın
amacı, Rus SU-24 uçağının Türkiye tarafından düşürülmesiyle ilgili haberlerin;
Rus ve Türk ulusal basınında ne şekilde yer aldığını ya
da olayı nasıl bir çerçeveye oturttuklarını belirlemeye çalışmaktır. Çalışmada,
haber söyleminin kurulmasında habercilerin nasıl bir dil kullandıklarının
çözümlenmesi yapılmaya çalışılmıştır.
Türk Siyasal Yaşamında 1954 Genel Seçimleri
Authors: KAYA Yakup
Published: October 2018

Makalenin konusunu, 1954
genel seçimleri ve bu seçimler öncesinde ve sonrasında gerçekleşen olaylar
oluşturmaktadır. Bu çerçevede öncelikle, Demokrat Parti’nin 14 Mayıs 1950 genel
seçimleri ile iktidara geliş sürecine değinilmiştir. Demokrat Parti’nin ilk
iktidar evresi olan 1950-1954 yılları arasındaki iç ve dış politikada
gerçekleştirdiği atılımlar ana hatlarıyla değerlendirilmiştir. 1954
seçimlerinde Demokrat Parti rakipleri Cumhuriyet Halk Partisi, Cumhuriyetçi
Millet Partisi ve Türkiye Köylü Partisi karşısında Meclis çoğunluğunu kazanarak
iktidarın tek başına sahibi olmayı sürdürmüştür. Demokrat Parti’nin sağladığı
başarı basit çoğunluk sistemi dolayısıyla muhalif partilerin Meclisteki
temsilini daha da zayıflatmıştır. 1954 genel seçimleri incelenirken Demokrat
Parti iktidarının uygulamaları çerçevesinde meydana gelen siyasal ve toplumsal
yansımalar dikkate alınmış ve bu bağlamda seçimlerin Türk siyasal yaşamına
etkileri analiz edilmeye çalışılmıştır. Makalenin temel amacı Türk
demokrasisinin oldukça erken bir evresine damga vuran 1954 seçimlerinin
tahlilini yapmak ve bu atmosferin Türkiye’de siyasal kültürün oluşumuna
sağladığı katma değeri tespit etmeye çalışmaktır.
Yaşlı Yetişkinlerin Kişisel Anılarında İçsel Durumsal Dil Kullanımının Cinsiyet Farklılıkları Açısından Karşılaştırılması
Authors: SAYAR Filiz
Published: October 2018

Bu araştırmada, yaşlı
bireylerin otobiyografik anılarını hatırlarken kullandıkları içsel durumsal dil
kategorilerinin cinsiyet farklılıkları açısından karşılaştırılması
amaçlanmıştır. İçsel durumsal dil, anlatılan anıyla ilgili duygu (mutluluk,
üzüntü), biliş (anlamak, düşünmek), algı (görmek, duymak) ve fizyolojik durum
(üşümek, yorulmak) gibi kategorileri içeren ve bireyin yaşadığı olaydan belli
bir anlama ulaşmasını sağlayan bilişsel bir süreçtir. Araştırmada, 65 yaş ve
üstü toplam 60 bireyden beş yaşam dönemine ait birer anı anlatmaları istenmiş, kaydedilen
anılar içsel durumsal dil kategorileri açısından incelenmiştir. Sonuçta, kadın
katılımcıların anılarını daha fazla duygusal ifade kullanarak öyküleştirdikleri
ve daha fazla olumsuz ifade tercih ettikleri gözlenmiştir. Kadınlar, erkeklere
kıyasla ergenliğe dair anılarını daha olumlu ifadelerle anlatırken, orta yaşa
ait anıları için daha olumsuz ifadeler kullanmışlardır. Biliş, algı ve
fizyolojik durum ifadelerinin kullanımları bakımından herhangi bir cinsiyet
farklılığı gözlenmemiştir. Sonuçlar cinsiyetlerin maruz kaldıkları farklı
sosyalleşme süreçleri ve yaşla ilgili farklılıklar açısından
değerlendirilmiştir.
Türkiye Cumhuriyeti Vatandaşlarının Suriyeli Sığınmacılara Yönelik Tutum, Algı ve Empatik Eğilimlerinin Analizi
Authors: ÇİFTÇİ Hasan
Published: October 2018

Suriye’de meydana gelen
iç savaşın ardından en fazla sayıda Suriyeli sığınmacıya ev sahipliği yapan
ülkelerin başında Türkiye gelmektedir. Buna bağlı olarak çok sayıda Suriyelinin
savaş bittikten sonra da Türkiye’de kalacakları öngörülmektedir. Bu
araştırmanın temel amacı, Türkiye’de geçici koruma altında yaşayan Suriyeli
sığınmacılara yönelik Türkiye Cumhuriyeti vatandaşlarının tutum/algı ve empatik
yaklaşımlarının ölçülmesidir. Araştırmanın evrenini Türkiye Cumhuriyeti
vatandaşları oluşturmaktadır. Çalışma toplamda 1614 kişi ile gerçekleştirilmiştir.
Veriler yüz yüze görüşülerek anket veri toplama tekniği ile elde edilmiştir.
Araştırmada veriler Nisan-Mayıs 2018 tarihleri arasında toplanmıştır. Genel
olarak Suriyeli sığınmacılara yönelik olarak Türkiye Cumhuriyeti
vatandaşlarının önyargılı olmadıkları, Suriyeli sığınmacılara yönelik çalışma
hakkı verilmesi/suça meyilli olmamaları konularında daha olumlu tutum/algıya
sahip oldukları tespit edilmiştir. Öte yandan, Suriyeli sığınmacılara
vatandaşlık hakkı verilmesi/birlikte yaşama ve empati kurma konularında ise
daha olumsuz tutum/algıya sahip oldukları saptanmıştır. Türkiye Cumhuriyeti
vatandaşlarının Suriyeli sığınmacılarla eşit haklarda yaşayabilme duyarlılığı
vardır.
Study of the flow around cofferdams constructed in running water through computational model
Authors: Dalmora Cláudia Trevisol , Ota José Junji
Published: October 2018

ABSTRACT River closure to provide a dry area for the construction of the works in the river bed must be carefully performed because a failure can lead to serious and costly delays. By means of a computational approach, using the FLOW 3D® software, this paper studies the hydraulic behavior of the flow around a cofferdam constructed in running water. The computational model was validated using results of an experimental investigation. Then the effect of changing the cofferdam configuration on the flow characteristics in this region was analyzed. This study showed that the computational model adequately reproduces this type of flow and that changing the configuration of the cofferdam: increasing the width of the crest or decreasing the embankment slope affects the flow curvature and positively affects the river closure process.
Cost-efficiency analysis of a runoff detention reservoir with integrated hydraulic and structural dimensioning
Authors: Baptista Victor Santos Galvão , Paz Adriano Rolim da
Published: October 2018

ABSTRACT In Brazil, urbanization-dominated imperviousness is prevalent, increasing the incidence and magnitude of floods. An alternative to control this impact is an on-site runoff detention reservoir. The choice of reservoir adopted should ideally combine hydraulic/hydrological and structural/economic criteria, although there is a gap in the literature regarding this type of integrated analysis. In this article, a cost-efficiency analysis is conducted to select a reservoir to control the runoff captured by a roof (4,657 m2) using the Puls method for hydraulic dimensioning and based on technical standards for the design of concrete structures. The results indicate that a decrease of approximately 3% in the theoretically ideal efficiency (100%) of the reservoir provided a 36% drop in cost. Such an alternative is more likely to become attractive and economically viable, with virtually the same benefits to the downstream stormwater drainage system. The analysis of different alternatives induced a decision between the level of control of the reservoir output and the cost that emphasized different aspects, focusing on more than the minimization of the cost or the imposition of a pre-defined control level in an arbitrary way.
Obtaining of NK cell clones using IL-2 and gene-modified K562 cells expressing membrane-bound IL-21 v1
Authors: A Streltsova Maria , Erokhina Sofya , M Kanevskiy Leonid , A Lee Dean , G Telford William , Kovalenko Elena
Published: October 2018

Here we present the simple and effective method for obtaining clones of NK cells, sorted according to a given set of surface markers. The lifespan of clones grown by this method can reach 14 weeks and cloning efficiency is up to 50%, depending on the original NK cell subset. Obtained clones are functionally active; they are able to lyse target cells and produce IFNγ. The principle of method includes single cell sorting and further clonal expansion in the presence of IL-2 and gene-modified K562 feeder cells. Our method allows to expand the progeny of a single NK cell up to 10-20×106 NK cells suitable to study phenotype, proliferative and functional activity of a certain NK cell clone.
1% Picric Acid Solution Protocol v1
Authors: Kaufmann Anna-Kristin
Published: October 2018

When used as a fixing agent it leaves tissues in a condition that makes them particularly receptive to staining with acid dyes. It should be noted that since picric acid is a fairly strong acid, it can hydrolyze DNA if tissues are left too long, and nuclear staining may be reduced. (http://stainsfile.info/StainsFile/prepare/fix/agents/picric_acid.htm) This solution is added to a fixative solution for slices coming from electrophysiology experiments. <500μm slices to be fixed overnight, at +4°C, in PFA 2% + 0.3% picric acid + 1% glutaraldehyde. For Olivier Hagens slices with fluorescent cells, use PFA 4% only as a fixative (overnight, at +4°C).
Genetic diversity and population structure of domestic and wild reindeer (Rangifer tarandus L. 1958): a novel approach using BovineHD BeadChip v1
Authors: Ruslanovna Kharzinova Veronika , Vladimirovich Dotsev Arsen , Evgenievna Deniskova Tatiana , Dmitrievna Solovieva Anastasiya , Ivanovich Fedorov Valeriy , Anverovich Layshev Kasim , Michailovna Romanenko Tatiana , Michailovich Okhlopkov Innokentiy , Wimmers Klaus , Reyer Henry , Brem Gottfried , Anatolievna Zinovieva Natalia
Published: October 2018

Reindeer (Rangifer tarandus L. 1758) are an essential element of the Russian Far North, providing a significant source of nutrition for the representatives of 18 ethnicities. The species has wild and domestic forms, which are in constant interaction. The aim of our study was to characterize the genetic structure of domestic and wild reindeer populations, using a genome-wide bovine genotyping array (BovineHD BeadChip). The wild reindeer samples were obtained from the western Taymyr Peninsula population and from the taiga and tundra populations in the Sakha Republic (Yakutia). The domestic populations included the Evenk, Even, and Chukotka-Khargin breeds of Yakutia and the Nenets breed from the Nenets Autonomous district and Murmansk region. The level of genetic diversity was higher for the wild population. Analyzing Neighbor-Net tree, multidimensional scaling, and STRUCTURE results, we observed strong genetic population structure and clear differentiation between domestic and wild populations. All regional populations of domestic reindeer were clearly separated, while wild reindeer showed similar genetic backgrounds. Nevertheless, we found contrasting patterns in the genetic structure of the tundra and taiga reindeer, in accordance with their morphological and ecological differences. Thus, our study revealed a clear genetic differentiation between domestic and wild reindeer populations. It provides novel insights into the genetic diversity and structure of reindeer populations, to support resource utilization and aid in the development of genetic improvement strategies and conservation programs for this species.
Socio-demographic and lifestyle influences on falls among the elderly persons living in Gatanga Sub-county, Murang’a County, Central Kenya: A cross-section study v1
Authors: Kimani Ernest , Karanja Simon , Muthami Lawrence
Published: October 2018

An estimated third of the elderly people worldwide sustain falls every year, which contributes to over 20% of injuries in this age group. In central region of (Mount) Kenya, despite increasing awareness on the condition, the magnitude, socio-demographic and lifestyle factors leading to falls in the elderly are not well known. The main objective of this study was to investigate the prevalence of falls, their outcomes and the factors influencing their occurrence among the elderly persons living in Gatanga Sub-county, Murang’a County, central region of Kenya. An analytical cross-sectional study design was used. Using systematic random sampling, 420 out of 9146 study participants were identified and interviewed at home. Using a structured interview form, data was collected on socio-demographic, socio-economic, lifestyle and medical factors, and fall or non-fall status from September 2016 to August 2017. Statistical analysis was done with STATA 13.0 to establish the distribution and characteristics of falls. The prevalence of falls amongst the elderly in this region is high at 42%. The farming lifestyle involving crop farming and animal husbandry, socio-economic factors and medical illnesses are significantly associated with falls. To reduce the occurrence of falls, it requires understanding of the underlying factors leading to falls and integration of relevant preventive measures that reduce the risk of falls in specific communities of the elderly.
Zero-current Zero-voltage Transition Pwm Converters With Magnetically Coupled Auxiliary Circuit
Authors: Martins Mário L. da S. , Russi Jumar L. , Pinheiro José R. , Hey Hélio L.
Published: October 2018

This paper presents a novel methodology to synthesize Zero-Current Zero-Voltage Transition (ZCZVT) topologies. The proposed methodology is based on the Auxiliary Voltage Source (AVS) concept, which permits extend the proposed new circuits to an entire class of converters. As the AVS concept is derived directly from the Resonant Transition mechanism, the new class of ZCZVT converters resembles some of the well-known Zero-Voltage Transition (ZVT) converters, holding their main advantages such as simplicity, low reactive energy and high performance. Theoretical and experimental analyses are carried out throughout the paper taking the boost converter as the case study. Nevertheless, it can be extended to other PWM topologies, even the AC-DC and DC-AC converters. Experimental and comparative results have been obtained from three laboratory prototypes rated to 1 kW, 50 kHz, confirming the feasibility of the novel synthesis concept and also the reliability of the new ZCZVT converters in what refers to efficiency as well as to di/dt and dv/dt control.
Retificador Trifásico Híbrido Operando Com Controledigital e Modulação por Histerese
Authors: Soares Jurandir de O. , Canesin Carlos A. , Freitas Luiz C. de , Gonçalves Flávio A. S.
Published: October 2018

Neste artigo uma modulação por histerese digital é proposta e analisada usando dispositivo FPGA (Field Programmable Gate Array) e linguagem VHDL (Hardware Description Language), aplicada em um retificador trifásico híbrido composto por retificadores monofásicos SEPIC conectados em paralelo a cada um dos braços de um retificador de 6-pulsos convencional à diodos. O controle digital permite a programação da DHT (Distorção Harmônica Total) das correntes de entrada, possibilitando que a potência processada através dos conversores controlados, conectados em paralelo, represente uma pequena fração da potência média total de saída, de tal forma a permitir a obtenção de um conversor compacto, com uma DHT reduzida para as correntes de entrada e um fator de potência elevado. Assim, a solução proposta é considerada economicamente viável para instalações com potências elevadas, com um retorno imediato do investimento realizado. Além disso, a melhoria de instalações existentes é factível, uma vez que a conexão paralela com o link CC existente pode ser facilmente realizada. Finalmente, a estratégia de controle proposta é verificada através dos resultados experimentais com um protótipo de 3,0 kW.
Integrated Zeta - Flyback Converter To Supply Hid Lamps
Authors: Marchesan Tiago B. , Costa Marco Dalla , Alonso J. Marcos , Do Prado Ricardo Nederson
Published: October 2018

This paper proposes a Metal Halide (MH) lamp electronic ballast based on the integration of Zeta and Flyback converters working in discontinuous conduction mode, in order to provide the ballast power factor correction and to stabilize the lamp current, respectively. The proposed integration besides to reduce the number of ballast components, presents no additional current stress in the shared switch. The lamp is supplied with a low frequency square waveform (400Hz) to avoid the acoustic resonance phenomenon. The proposed topology has been implemented for an input voltage of 110V, 50Hz, in order to supply a 35W MH lamp.
Proposta De Uma Família De Conversores Zcs Quase-ressonante
Authors: C. Dias Emmanuel , Gomes de Freitas Luiz Carlos , Antônio Alves Coelho Ernane , Batista Vieira Júnior João , Carlos de Freitas Luiz
Published: October 2018

Este artigo apresenta uma nova célula de comutação suave capaz de promover entrada e saída de condução do interruptor principal de conversores CCCC sob corrente nula. Adicionalmente, a corrente máxima no interruptor principal é mantida igual à corrente de carga. Aplicando o princípio da invariância de potência e substituindo a célula PWM tipicamente encontrada em conversores CC-CC clássicos pela célula de comutação suave proposta, obteve-se uma nova família de conversores CC-CC ZCS que é apresentada neste artigo. O principio de operação e as principais características da célula de comutação proposta são apresentadas. Um estudo teórico completo sobre a aplicação da célula proposta em um conversor Buck foi realizado e comprovado através da implementação experimental de um protótipo de 800W em laboratório.
Um Tap Hvdc Com Fluxo Bidirecional De Energia
Authors: Carlos Borré Antonio , De Aguiar Júnior Edisio Alves , Aredes Maurício
Published: October 2018

Com a crescente demanda por energia elétrica, os sistemas HVDC tendem a assumir um papel cada vez mais importante no cenário mundial. No entanto, a extração ou injeção de pequenos blocos de energia ao longo de linhas HVDC constitui-se em um problema bastante complexo, devido a sua característica de transmissão ponto-a-ponto. Este estudo apresenta uma nova topologia para o Tap HVDC, bidirecional em energia, permitindo a conexão tanto de consumidores quanto de geradores ao sistema HVDC, de forma a realizar intercâmbio de energia com este. A fim de comprovar a eficiência do equipamento no que se refere ao dreno e a injeção de potência ao longo da linha, modelou-se um sistema simplificado no qual o Tap terá seus terminais conectados a uma fonte de corrente e ao potencial de terra. A ferramenta computacional utilizada para simulação foi o software de transitórios eletromagnéticos PSCAD/EMTDC.
Utilização De Algoritmo Genético Para Alocação De Geradores Em Sistemas Isolados De Corrente Contínua
Authors: Nelson Gewehr Diego , Diniz de Melo Eduardo , Paschoareli Jr. Dionízio
Published: October 2018

Este trabalho apresenta uma metodologia para a alocação de fontes de energia elétrica em sistemas isolados de corrente contínua, utilizando algoritmo genético. Neste estudo, é considerada a alocação de fontes fotovoltaicas, embora a metodologia possa ser generalizada para quaisquer fontes. É desenvolvido uma ferramenta computacional, utilizando-se o programa de simulação Matlab, para a aplicação do algoritmo genético, com o objetivo de se obter a melhor configuração do sistema de corrente contínua de modo a minimizar o número de fontes, reduzindo custos e melhorando o desempenho do sistema.
Performance Analysis Of A Neural Flux Observer For A Bearingless Induction Machine With Divided Windings
Authors: Álvaro de Paiva José , Ferreira Victor Valcí , Ortiz Salazar Andrés , Laurindo Maitelli André
Published: October 2018

This article presents a system of vector speed control using neural estimation of rotor flux for a 1.1 kWatt winding bearingless three-phase induction machine. The neural estimator is composed of two multilayer feedforward linear networks and substitutes the estimator based on the inverse model of the machine, in which undesirable characteristics such as non-linearity and parametric variations that generate flux estimation errors are observed. The inputs of the developed networks are the currents in vector coordinates of the rotor flux and the mechanical speed of the machine, and their outputs are the angular speed of the rotor flux and the magnetization current. The vector controller operates in conjunction with radial position and current controllers. The control algorithm is implemented in a Digital Signal Processing (DSP) with six PWM monophasic inverters at 10 kHz switch frequency.