bluuebunny/crossref_metadata_2025 huggingface dataset:
The Impact of Using Portable Sealer on Drop Out Component' Number at Surface Mounting Technology Production Line
Authors: Nugroho Adi , Muchid Abdul
Published: August 2021

The study aims to reduce the drop out of components that occur in the surface-mounting technology production line of PT. TEC Indonesia. This effort is carried out by designing a portable sealer product to glue the cover tape and carrier tape component products made in the line. In order to obtain the best value indicator for product design, this study uses a quantitative factorial design technique to determine value reduce drop out of components in the surface mounting technology (SMT) production of the parameter combination use of adhesive strength produced by the product. Information on study data obtained through the concept of experimental design (DOE) using temperature and treatment time parameters resulting from the product's design. Results of the tests have been carried out. Information on the adhesive strength reaches standard is rated at a temperature 1200 C for one two and three seconds, which can produce adhesion of 0.029 Kgf (the standard value is at 0.02-0.07 Kgf). In addition, the number of drop-out components produced after using the product has decreased significantly to zero, which previously reached an average of two to three components that were damaged or defective (test data).
Noise Level Analysis of KM. Sabuk Nusantara 71 to Increase Ship Passengers Comfort Based on BKI Rules
Authors: Sugeng Sunarso , Ridwan Mohammad , Sulaiman Sulaiman , Khristyson Samuel Febriary
Published: August 2021

Noise is an unwanted sound or sound source which can distract or harm human health and comfort. According to experts, a sound that exceeds the level of human listening senses can cause deafness. Such danger can also be found in ships. An alternative to reduce noise in ships is by modifying the construction.  This research aims to compare noising before and after adding a side deck girder in the engine room of a 2000 DWT ship. The result showed that in the engine room, after adding a FB 180 x 8 mm FP 75 x 10 mm sized T profile, for 0-30 seconds intervals, the maximum noise was down from 127 dB to 62 dB or a 0.47% decrease. Meanwhile, the maximum noise was down from 98.6 dB to 57 dB in the accommodation room or decreased by 0.41%. The maximum noise was down from 83 dB to 37 dB or a 0.56% decrease in the navigation room. Such modification had reduced the average noise range from 80-40 dB to 55-20 dB.
Technical Reasoning on a Local Government Land Property as Heuristic Tool to Accommodate City Leaders Strategic Planning
Authors: Wahyuddin Yasser , Sudarsono Bambang
Published: August 2021

One of the Land Asset Management facets in Indonesia has been so far the possession of the land as an asset for local government. The regulation allows local government to organize local land assets to support land use planning in various patterns. While at the same time, Indonesia has a rigorous rule on land use planning with Euclidean Zoning System called RTRW Plan, which lasts for 20 years. Land use patterns could not be ruled by projecting a specific order, ideology, technical stances, etc. This article would like to contextualize a dynamic in which city leader infrastructure strategic planning was being technically anticipated by filtering out the feasibility of local land asset which meet the minimum requirement of the RTRW as the principal reference for spatial land use planning.  This article does not necessarily address its aim at problematizing RTRW; rather, in the first place, it discusses the vigorous of the local government technical department to bridge a so-called City Leader strategic planning with the current systems of the RTRW. Here, the article would argue that a tiny time frame of the City Leader's order leaves a narrow space for technical staff to map out a holistic technical plan. Instead, opting for a specific local land asset appeared to be the instant solution to such a plan. Furthermore, the second concern of this article specified its attention on providing the technical means so that the choice of the predetermined location was constructively and objectively justified beforehand.  A specific case study of Pekalongan Regency, Central Java Indonesia, allowed delving into the empirical case. The city leader was at the last year of his terms, and it was claimed, the choice to develop hospital infrastructure was part of a political maneuver. A qualitative approach in the form of in-depth interviews and compilation of secondary documents was employed. The city technical managers needed to operate rational technocratic mechanisms to the politico-technique juxtaposition to justify the planning problem's technical rationality and the other side to provide a technical solution, pointing out land assets under the framework of the RTRW. Thus, the arguments developed in this work contested the land choice technical assessments were not necessarily neutral rather a supporting element to adjust the overwhelming leader's strategic choice fully. Further discussion materials are proposed. In this case, the political strategy created a circumstance of instantaneity and a limited time frame that could lead to the enthusiasm of strategic thinking under the realm of the urban planning system.
Back Matter
Authors: TEKNIK Editor in Chief
Published: August 2021

Artikel editorial ini berisi back-matter TEKNIK Volume 42 Nomor 2 Tahun 2021 yang memuat petunjuk penulisan dan pengiriman artikel TEKNIK.
Approximation of the Willmore energy by a discrete geometry model
Authors: Gladbach Peter , Olbermann Heiner
Published: August 2021

We prove that a certain discrete energy for triangulated surfaces, defined in the spirit of discrete differential geometry, converges to the Willmore energy in the sense of Γ-convergence.
Variants of this discrete energy have been discussed before in the computer graphics literature.
Variant readings in the so-called Tbilisi hymn to Dionysus
Authors: Kayachev Boris
Published: August 2021

The papyrus on which the so-called Tbilisi hymn to Dionysus survives (P. Ross. Georg. I 11 [LDAB 4911 = MP3 01861.000]) is remarkable for preserving, along with the hymn’s text, a number of marginal and interlinear variant readings, which, interpreted as authorial variants, have led to the conclusion that the papyrus represents an autograph draft. As the present study argues, it is in fact more likely that the variants belong to a copyist or reviser rather than to the hymn’s author.
P.Ross. Georg. I 21: riedizione e commento del più esteso manuale di ieroscopia
Authors: Costanza Salvatore , Papathomas Amphilochios
Published: August 2021

Greek papyri dating between the 2nd and the 4th centuries AD bear testimony to treatises about hieroscopy, the study of animal entrails, especially the liver, for the purpose of divination. The present article is dedicated to the best preserved handbook on this divinatory technique, P.Ross. Georg. I 21, which provides detailed instructions on how to “read” the entrails. A new critical edition of the papyrus is presented with translation and commentary.
The Monastery of Apa Posidonios at Hermonthis and an Alleged Local Cult of “Poseidon” (with Notes on “Kothos” and the Supposed Fish-Cult at Latopolis)
Authors: Krueger Frederic
Published: August 2021

This article compiles the available information regarding the Monastery of Apa Posidonios at Hermonthis and explores the possibility that its patron saint may have been the Egyptian anchorite, Posidonios, mentioned in the Lausiac History. The assessment of a Hermonthite cult of “Poseidon” described in a Coptic encomium leads into a general discussion of hagiographical constructions of “pagan” cults.
A Note on the Existence of the Competitive Equilibrium in Grossman and Shapiro (1984)
Authors: Creane Anthony
Published: August 2021

In their seminal paper, Grossman, G. M., and C. Shapiro. 1984. “Informative Advertising with Differentiated Products.” The Review of Economic Studies 51: 63–81 assume that it is not profitable for a firm to deviate to the supercompetitive price of Salop, S. C. 1979. “Monopolistic Competition with outside Goods.” The Bell Journal of Economics 10: 141–56. In this note, it is shown that this assumption is violated if, roughly, each firm reaches less than half of all consumers unless it is a duopoly. This implies that most of the simulations in Grossman, G. M., and C. Shapiro. 1984. “Informative Advertising with Differentiated Products.” The Review of Economic Studies 51: 63–81 are not actually equilibria. More importantly, this implies that for their equilibrium to exist nearly all consumers must receive at least one ad. For example, with just four firms in the market, at least 96% of the consumers must receive at least one ad, and this percentage increases with the number of firms in the market.
Tracking heart surface features to determine myocardial contrast agent enrichment
Authors: Sprenger J. , Petersen J. , Neumann N. , Reichenspurner H. , Russ D. , Detter C. , Schlaefer A.
Published: August 2021

Fluorescent cardiac imaging can be applied for intraoperative quality control after a coronary bypass grafting surgery to ensure the myocardial perfusion by evaluating the increasing contrast agent enrichment in the heart. The motion due to the beating heart impedes the interpretation of the contrast agent enrichment in the vessels and leads to noisy enrichment curves. We propose tracking of the heart surface features to compensate for the motion of the beating heart and thereby improve the analysis of the contrast agent enrichment. Furthermore, we propose a vessel segmentation pipeline for a local evaluation of contrast agent enrichment directly in the vessels.
Applied machine learning for liver surgery
Authors: Sailer Maria , Schiller Florian , Falk Thorsten , Jud Andreas , Lang Sven Arke , Ruf Juri , Mix Michael
Published: August 2021

Background and objectives: Both hepatic functional reserve and the underlying histology are important determinants in the preoperative risk evaluation before major hepatectomies. In this project we developed a new approach that implements cutting-edge research in machine learning and nevertheless is cheap and easily applicable in a routine clinical setting is needed. Methods: After splitting the study population into a training and test set we trained a convolutional neural network to predict the liver function as determined by hepatobiliary mebrofenin scintigraphy and single photon emission computer tomography (SPECT) imaging. Results: We developed a workflow for predicting liver function from routine CT imaging data using convolutional neural networks. We also evaluated in how far transfer learning and data augmentation can help to solve remaining manual data pre-processing steps and implemented the developed workflow in a clinical routine setting. Conclusion: We propose a robust semiautomatic end-to-end classification workflow for abdominal CT scans for the prediction of liver function based on a deep convolutional neural network model that shows reliable and accurate results even with limited computational resources.
Научная деятельность Н.Н. Дурново во время командировки в Чехословакию (1924–1927)
Authors: Робинсон Михаил Андреевич
Published: August 2021

История славистики складывается как из истории различных идей, концепций и научных организаций, так и из судеб отдельных ученых, на которые влияют не только состояние названной области науки, но и жизнь общества в целом. Публикуемый труд относится к области историко-антропологических исследований и проведен с позиций «новой биографической истории» или «персональной истории», особенно плодотворных при изучении судьбы ученых, в данном случае известного слависта, и предполагающих повышенное внимание к культурно-историческому контексту эпохи. Анализ архивных документов позволяет реконструировать обстоятельства жизненного и научного пути ученого, проследить причины научной командировки Н.Н. Дурново за границу, которую он использовал для чтения лекций в университете Брно, работы в библиотеках в Праге, организации и участия в диалектологических экспедициях с целью изучения диалектов Карпатской Руси. Важным научным результатом Дурново стала подготовка и издание в Чехословакии его книги «Введение в историю русского языка», получившей высокую оценку его зарубежных и отечественных коллег и не утратившей своей актуальности для современной лингвистики.
Medial strongly dependent n-ary operations
Authors: Cheremushkin Aleksandr V.
Published: August 2021

We prove an analogue of Toyoda–Belousov theorem on the structure of medial n-quasigroups for the case of strongly dependent n-ary operations.
Large deviations of branching process in a random environment
Authors: Shklyaev Aleksandr V.
Published: August 2021

In this first part of the paper we find the asymptotic formulas for the probabilities of large deviations of the sequence defined by the random difference equation Y

n+1=A

n

Y

n
+ B

n
, where A
1, A
2, … are independent identically distributed random variables and B

n
may depend on

{
(

A
k

,

B
k

)
,
0
⩽
k
<
n
}

$ \{(A_k,B_k),0\leqslant k \lt n\} $

for any n≥1. In the second part of the paper this results are applied to the large deviations of branching processes in a random environment.
Local limit theorems for generalized scheme of allocation of particles into ordered cells
Authors: Timashev Aleksandr N.
Published: August 2021

A generalized scheme of allocation of n particles into ordered cells (components). Some statements containing sufficient conditions for the weak convergence of the number of components with given cardinality and of the total number of components to the negative binomial distribution as n → ∞ are presented as hypotheses. Examples supporting the validity of these statements in particular cases are considered. For some examples we prove local limit theorems for the total number of components which partially generalize known results on the convergence of this distribution to the normal law.
Hydrothermal synthesis, characterization and photocatalytic activity of Mg doped MoS2
Authors: Khan Muhammad Iftikhar , Touheed Muhammad , Sajjad-ul-Hasan Muhammad , Siddique Muhammad , Rouf Syed Awais , Ahmad Tanveer , Fatima Mahvish , Iqbal Munawar , Almoneef Maha M. , Alwadai Norah
Published: August 2021

In this research work nanoparticles of Mg (0, 1, 2 and 3%) doped MoS2 are prepared by Hydrothermal method at 200 °C for 9 h. Scanning Electron Microscope (SEM) for surface morphology, Fourier Transform Infrared Spectroscopy (FTIR) for structural and chemical bonding and UV-visible spectroscopy for optical properties are used. SEM showed that sheet-like structure has changed into stone-like shaped when Mg has doped into MoS2. From FTIR, Mo–O, Mo=S, and H–O bond peaks are becoming dim and new chemical bonds S=O, Mo=O, Mg–O, CH and OH are forming with the increase of Mg doping. UV-visible spectroscopy showed that MoS2 has an indirect bandgap 2.21 eV. Band gap decreased from 1.84 to 1.82 eV when the Mg doping was increased from 1 to 2%, respectively. As Mg concentration was increased i.e. 3% then band gap increased to 1.88 eV. Photocatalytic activity (PCA) of undoped and Mg doped MoS2 is appraised by degrading rhodamine blue (RhB) and methylene blue (MB) dyes. The results showed that PCA (in presence of visible light) Mg doped MoS2 is greater than pure MoS2 which significantly increased the photocatalytic properties.
ETİYOLOJİK RİSK FAKTÖRLERİNİN ÇÜRÜK RİSKİ ÜZERİNE ETKİSİNİN DEĞERLENDİRİLMESİ
Authors: ÇAYIR İşın , KARABEKİROĞLU Said
Published: August 2021

Amaç: Çalışmamızın amacı toplumun çürük riski açısından iki uç
kısmındaki yüksek ve düşük çürük riskine sahip bireylerin etiyolojik çürük risk
faktörlerinin tespit edilip, değerlendirilmesi.Gereç ve Yöntemler:Necmettin Erbakan Üniversitesi
Diş Hekimliği Fakültesine tedavi görmek üzere başvuran 25-30 yaş aralığında 500
genç yetişkin birey değerlendirildi. Çalışma başlangıcında etik kurul onayı Kasım
2017’de alındıktan sonra hastalardan aydınlatılmış onam formu alındı. Bireylerin
bir araştırmacı tarafından klinik ve radyolojik muayeneleri yapıldı sonuçlar
kaydedildi. Çalışmaya dahil edilen bireyler 250’şer kişilik iki risk grubuna
ayrıldı. Bireylerin etiyolojik risk faktörlerinin belirlenmesi için anket formu
dolduruldu. Çalışma süresince yapılan ölçümler sonucunda elde edilen veriler
Windows ortamında SPSS istatistik paket programından (SPSS Statitistics 17.0,
Chicago, USA) kullanılarak değerlendirildi. Araştırma kapsamında risk grupları
ile kategorik değişkenleri kıyaslamak üzere  Chi-Square testi; bağımsız
örneklem T testi uygulandı.

Bulgular:500 birey için
ortalama DMFT/DMFS değerleri sırasıyla 8.256 / 19.3 olarak hesaplandı. Kadınların yüksek risk grubunda yer alma oranlarının
erkeklere göre fazla olduğu tespit edildi (p<0,05). Çürük riski  gelir seviyesi, eğitim durumunun ters orantılı
olarak değiştiği tespit edildi. Diş fırçalama sıklığı günde iki kere  olan, yatmadan önce diş fırçalama alışkanlığı
olan, florlu macun ve ilave bakım alışkanlıkları olan, düzenli diş hekimi
kontrolüne gelen bireylerin düşük risk grubunda yer alma oranlarının fazla
olduğu tespit edildi (p<0.05). Şekerli tüketim sıklığı fazla, düzensiz
fazla uyku alışkanlığı  ve yatmadan önce
yemek yeme alışkanlığı olan bireylerin yüksek çürük riski grubunda yer alma
oranlarının fazla olduğu tespit edildi (p<0.05).

Sonuçlar:Cinsiyet, sosyoekonomik faktörler, ağız bakım
alışkanlıkları, beslenme alışkanlıkları , uyku alışkanlıklarının çürük riskini
etkileyen etiyolojik faktörlerdir. Çalışmamız sonucunda çürük risk tespiti
yapılması ve gerekli koruyucu önlemlerin alınması için bu faktörlerin
değerlendirilmesi gerektiği tespit edilmiştir.

Anahtar Kelimeler:  Diş çürüğü, DMFT, Çürük riski
EFFECT OF THERMOCYCLING ON MECHANICAL AND SURFACE PROPERTIES OF THREE POSTERIOR RESTORATIVE MATERIALS
Authors: AKGÜL Sinem , HAZAR Ahmet , YIKILGAN İhsan , ÖZCAN Suat , ÜÇTAŞLI Mine Betül , BALA Oya
Published: August 2021

Background:
To evaluate the mechanical and surface properties of two glass ionomer
restorative systems (EQUIA Fil, Ionostar Molar) and a resin composite (Charisma
Classic ) after thermocycling. Methods:
Twenty disk-shaped samples were prepared from each material in teflon molds
according to manufacturer’s instructions. After the samples were stored in
distilled water at 37 0C for 24 h, microhardness and surface
roughness measurements were performed from each group and repeated after 5000
and 10000 thermocycling. Scanning electron microscopy examinations were also
performed. The data were analyzed by using Wilcoxon signed rank and Bonferroni
corrected multiple comparison tests.Results: EQUIA
did not exhibit significant differences in its micohardness values after
thermocycling (p >  0.0056). In contrast, Ionostar Molar and
Charisma Classic exhibited statistically significant decreases in baseline
microhardness after 5000 and 10000 thermocycling processes (each p <
0.0056). However, there were no significant differences between 5000 and 10000
thermocycling groups for Charisma Classic (p = 0.007).
Ionostar Molar exhibited no statistically significant differences between its
surface roughness values before and after thermocycling groups (p > 0.0017). Similarly, there were no significant
differences between baseline and 5000 thermocycling groups for EQUIA and
Charisma Classic (p > 0.0017). However, a
statistically significant increase was observed after 10000 thermocycles for
both of these two materials (p < 0.001 and p = 0.002, respectively).Conclusion: The
EQUIA and Ionostar Molar exhibited mechanical features similar to those of a
resin composite, and thus, represent promising materials for permanent
restorations.

Keywords: Glass
ionomer, scanning electron microscopy, surface
properties
Styloid Ligament Ossifikasyonu ile Pulpa Kalsifikasyonu Varlığı Arasındaki İlişkinin Panoramik Radyograflar Kullanılarak Belirlenmesi
Authors: ÇELİK ÖZSOY Sümeyya , ÇETİN Bilgün
Published: August 2021

Amaç: Bu çalışmanın amacı, panoramik radyograflar kullanılarak styloid ligament ossifikasyon (SLO) varlığı ile molar dişlerde pulpa taşı varlığı arasında anlamlı bir ilişki olup olmadığını incelemek ve bu kalsifikasyonların görülme sıklığını ve cinsiyetler arasında fark olup olmadığını değerlendirmektir.
Gereç ve Yöntemler: Retrospektif olarak 2000 adet panoramik radyograf içinden herhangi bir anomali, kök yada kron kırığı, kanal tedavisi, protez kron veya derin dolgusu olmayan birinci ve ikinci molar dişlere sahip 487 adet görüntü (276 kadın, 211 erkek) seçildi. Oral radyolog olan iki gözlemci birlikte bu görüntüleri değerlendirdi ve SLO varlığını tek taraflı, iki taraflı veya var olmayan şeklinde kategorize etti ve pulpa kalsifikasyonuna sahip molar diş sayısını da not ettiler. Bu veriler IBM SPSS (sürüm 21) ile analiz edildi. SLO ve pulpa taşı arasındaki ilişki için Pearson korelasyon analizi ve cinsiyetler arasındaki fark için ise ki-kare testi kullanıldı. Ayrıca insidans için tanımlayıcı istatistikler ve frekans dağılımı kullanıldı.
Bulgular: SLO ile pulpa kalsifikasyonu varlığı arasında anlamlı bir ilişki bulunamamıştır (p=0.282). Ayrıca, cinsiyetler arasında SLO varlığı açısından anlamlı bir fark bulunamamıştır (p=0.53). Bununla birlikte, pulpa kalsifikasyonu sayısı açısından cinsiyetler arasında anlamlı bir fark görülmüştür (p=0.021).
Sonuç: Her ne kadar populasyonda SLO ve pulpa kalsifikasyonu sıklığı yüksek görülse de, bu kalsifikasyonlar arasında herhangi bir ilişki bulunamamıştır. Ayrıca panoramik radyografiler çene yüz bölgesindeki kalsifikasyonları belirlemek için kullanışlı bir tercihtir.
3 FARKLI DENTİN HASSASİYETİ GİDERİCİ DİŞ MACUNUNUN SİTOTOKSİSİTESİNİN DEĞERLENDİRİLMESİ
Authors: ÇELİK Ayşe Canan Tutku , KÖLÜŞ Türkay
Published: August 2021

Amaç: Hassasiyet giderici diş macunları uygulama süreleri boyunca dişler ve oral dokularla sürekli temas halindedirler. Macunların içindeki ajanlar ideal olarak oral dokulara zarar vermemeli, dokuların iyileşmelerine yardımcı olmalıdırlar. Bu çalışmanın amacı, dentin hassasiyeti gidermek için sıklıkla kullanılan üç farklı diş macunun L929 fare fibroblast hücrelerinin canlılıkları üzerine etkilerini değerlendirmektir.

Gereç ve Yöntemler: Test edilen macunların orijinal ekstraktı Dulbecco's Modified Eagle Medium(DMEM) kültür ortamı ile seyreltilerek üç farklı konsantrasyonu hazılandı. L929 fare fibroblastı hücreleri macunların % 25, % 12, % 6’lık üç farklı konsantrasyonuna maruz bırakıldı (n=12). Hücre canlılığı MTT testi ile değerlendirildi. Kontrol grubunun hücre canlılığı %100’e eşitlendi, veriler istatistiksel olarak one-way ANOVA ve post-hoc Tukey’s HSD testleriyle değerlendirildi.

Bulgular: Test edilen macunların % 25, % 12, % 6’lık üç farklı konsantrasyonun da kontrol grubuyla karşılaştırıldığında L929 hücreleri üzerine sitotoksik etkileri olduğu gözlenmiştir (p
Farklı Enerji Seviyelerindeki Er:YAG Lazer ile Tamir Edilen Akrilik Kaide Rezininin Bükülme Dayanımı
Authors: ATEŞ Sabit Melih , ÇAĞLAR İpek , YEŞİL DUYMUŞ Prof. Dr. Zeynep
Published: August 2021

Amaç: Konvansiyonel akrilik kaide rezininin tamirinde, tamir yüzeylerine uygulanan farklı enerji seviyelerindeki Er:YAG lazerin kaide rezininin bükülme dayanımına etkisini incelemektir.

Gereç ve Yöntemler: 160 adet dikdörtgenler prizması şeklindeki akrilik rezin örnek özel bir kalıp kullanılarak üretildi ve tamir yüzeylerine farklı enerji seviyelerinde Er:YAG lazer uygulanmak üzere 4 gruba ayrıldı; Grup 1; kontrol-işlem uygulanmayan grubu, Grup 2; 2 W (200 mJ/atım) lazer uygulanan grubu, Grup 3; 3 W (300 mJ/atım) lazer uygulanan grubu ve Grup 4; 4 W (400 mJ/atım) uygulanan grubu temsil etmektedir. Farklı yüzey işlemlerinden sonra örnekler otopolimerizan akrille tamir edilerek toplam 80 adet (n=20) örnek hazırlandı. Tamir edilen örneklerin bükülme dayanımı ısısal yaşlandırma uygulandıktan sonra universal test cihazı kullanılarak üç noktalı eğme testi ile ölçüldü. Elde edilen verilerin istatistiksel analizi tek yönlü ANOVA ile yapıldı ve gruplara ait ortalamalar Tukey HSD testi kullanılarak karşılaştırıldı (p
Plattformen für digitalen Journalismus in Deutschland
Authors: Weber Jonas , Steffl Jonas , Buschow Christopher
Published: August 2021

Zunehmend mehr Medienmärkte werden heute von Plattformen dominiert. Im Journalismus hat sich dieses Modell bislang nicht durchsetzen können, obwohl bereits unterschiedliche Plattformen am Markt existieren. Ziel des vorliegenden Beitrags ist es, die gegenwärtig verfügbaren Plattformen für digitalen Journalismus in Deutschland zu identifizieren und zu typisieren. Dazu führt der Beitrag zunächst Literatur aus Medienmanagement und Medienökonomie zusammen, um charakteristische Geschäfts- und Produktmerkmale von Medienplattformen zu bestimmen. Mittels einer empirischen Bestandsaufnahme sowie einer typenbildenden qualitativen Inhaltsanalyse werden vier Plattformtypen ermittelt: Aggregatoren, abonnementbasierte Plattformen, Online-Kioske und Einzelartikel-Kioske. Die empirische Detailanalyse zeigt, dass diese Typen größtenteils hinter den Innovationserwartungen zurückbleiben – sie können kaum als Pioniere des digitalen Journalismus gelten. Insbesondere legen die Befunde nahe, dass Journalismusplattformen bislang vorrangig als ein zusätzlicher Distributionskanal verstanden werden und nicht als neuartige Produktform für Medieninhalte.
Interdisziplinäre Lehre und Forschung für die Medienwirtschaft an der Fachhochschule St. Pölten
Authors: Grüblbauer Johanna
Published: August 2021

Die Medienwirtschaft hat sich in den letzten Dekaden tiefgreifend verändert. Die enorme Vielfalt an Kanälen und Plattformen, die Fragmentierung der Märkte, sinkende Erlöse und die zunehmende Konkurrenz durch globale Konzerne stellen die Medienunternehmen in Europa vor große Herausforderungen. Gleichzeitig eröffnen sich mit der Digitalisierung neue Möglichkeiten der Herstellung und Distribution von Content. Mit ihren datenbasierten Diensten werden die Medienunternehmen zu Innovationstreibern der digitalen Ökonomie. Die Fachhochschule St. Pölten schaut auf eine 25-jährige Geschichte der Lehre und Forschung im Medienbereich zurück. Durch die Bündelung aller Kräfte über die Grenzen der Disziplinen hinweg entsteht nun ein neues, einzigartiges Angebot, das die technischen, die betriebswirtschaftlichen und die kreativen Aspekte der Medienproduktion vereint, Synergien für die strategische Weiterentwicklung der Studiengänge schafft und damit einen wichtigen Beitrag zur Bewältigung der Herausforderungen in der Medienwirtschaft leistet.
The Use of Levosimendan in the Treatment of Neurogenic Stress Cardiomyopathy in a Patient with Nontraumatic Subarachnoid Hemorrhage (Case Report)
Authors: Polupan A. A. , Tabasarankiy T. F. , Kheireddin A. S. , Savin I. A. , Zelenkova O. M. , Savchenk Ya. V. , Birg T. M. , Pashin A. A. , Sychev A. A. , Baranich A. I. , Belousova O. B.
Published: August 2021

We present a case of cardiogenic shock due to neurogenic stress cardiomyopathy (NSC) in a patient with nontraumatic subarachnoid hemorrhage caused by a ruptured aneurysm of the right pericallosal artery. Due to the catecholamine-resistant shock, levosimendan was administered under advanced hemodynamic control, including transpulmonary thermodilution and echocardiography. This resulted in an improved cardiac contractility and reduced demand for catecholamines. Full stabilization of hemodynamic parameters was achieved by day 5. In the discussion section we reviewed available published case reports of using levosimendan in stress cardiomyopathy treatment.
Mechanical properties of jute fiber reinforced polypropylene composite: Effect of chemical treatment by benzenediazonium salt in alkaline medium
Authors: Kabir M. Alamgir , Huque M. Monimul , Islam M. Rabiul , Bledzki Andrzej K.
Published: August 2021

Raw jute fiber was treated with o-hydroxybenzenediazonium salt (o-HBDS) in alkaline media. Raw and modified jute fiber were used to prepare composites by mixing with polypropylene (PP) plastic in different weight fractions (20, 25, 30, and 35%) of jute fiber. The mechanical properties except elongation at break of o-HBDS-treated (in alkaline medium) jute fiber-PP composite were higher than those of PP alone, raw jute fiber-PP composites, and alkali-treated jute fiber-PP composites. The elongation at break of treated jute-PP composite decreased to a large extent as compared to that of PP. The increase of tensile strength, tensile modulus, flexural strength, flexural modulus, and Charpy impact strength were found to be exceptionally high (in some cases ~200%) as compared to those of literature values.
Mathematical insights into neuroendocrine transdifferentiation of human prostate cancer cells
Authors: Turner Leo , Burbanks Andrew , Cerasuolo Marianna
Published: August 2021

Prostate cancer represents the second most common cancer diagnosed in men and the fifth most common cause of death from cancer worldwide. In this paper, we consider a nonlinear mathematical model exploring the role of neuroendocrine transdifferentiation in human prostate cancer cell dynamics. Sufficient conditions are given for both the biological relevance of the model’s solutions and for the existence of its equilibria. By means of a suitable Liapunov functional the global asymptotic stability of the tumour-free equilibrium is proven, and through the use of sensitivity and bifurcation analyses we identify the parameters responsible for the occurrence of Hopf and saddle-node bifurcations. Numerical simulations are provided highlighting the behaviour discovered, and the results are discussed together with possible improvements to the model.
COVID-19 Vaccine Uptake Among US Child Care Providers
Authors: Patel Kavin M. , Malik Amyn A. , Lee Aiden , Klotz Madeline , Humphries John Eric , Murray Thomas , Wilkinson David , Shafiq Mehr , Yildirim Inci , Elharake Jad A. , Diaz Rachel , Reyes Chin , Omer Saad B. , Gilliam Walter S.
Published: August 2021

OBJECTIVES

Ensuring high coronavirus disease-2019 (COVID-19) vaccine uptake among US child care providers is crucial to mitigating the public health implications of child-staff and staff-child transmission of severe acute respiratory syndrome coronavirus 2; however, the vaccination rate among this group was previously unknown.

METHODS

To characterize vaccine uptake among US child care providers, we conducted a multistate cross-sectional survey of the child care workforce. Providers were identified through various national databases and state registries. A link to the survey was sent via e-mail between May 26 and June 23, 2021. A 37.8% response yielded 21 663 respondents, with 20 013 satisfying inclusion criteria.

RESULTS

Overall COVID-19 vaccine uptake among US child care providers (78.2%, 90% confidence interval: 77.5% to 78.9%) was higher than the US general adult population (65%). Vaccination rates varied between states from 53.5% to 89.4%. Vaccine uptake among respondents differed significantly (P < .01) based on respondent age (70.0% for ages 25–34, 91.6% for ages 75–84), race (70.0% for Black or African Americans, 92.5% for Asian Americans), annual household income (70.8% for <$35 000, 85.1% for >$75 000), and child care setting (73.0% for home-based, 79.7% for center-based).

CONCLUSIONS

COVID-19 vaccine uptake among US child care providers was higher than the general US adult population. Those who were younger, lower income, Black or African American, resided in states either in the Mountain West or the South, and/or worked in home-based child care programs reported the lowest rates of vaccination. State public health leaders and lawmakers should prioritize these subgroups to realize the largest gains in vaccine uptake among providers.
Trombosis de la vena espermática derecha. Primer caso clínico reportado en Colombia
Authors: Castro-Avendaño Juan Leonel , Rosero-Rosero Fabian Danilo , Donoso-Donoso Wilfredo , Cagua-Agudelo José Edwin , Rivillas-Reyes Juan Felipe , Rey-Melendez Daniela del Pilar
Published: August 2021

Introducción. La trombosis de la vena espermática (TVE) es una entidad muy poco frecuente de la cual no se tienen datos epidemiológicos específicos. Su presentación es de predominio izquierdo, en la mayoría de los casos su causa es desconocida y su diagnóstico suele realizarse por exclusión en el estudio del escroto agudo. A continuación, se presenta el primer caso documentado de TVE en Colombia y uno de los pocos de lateralidad derecha en el mundo.
Presentación del caso. Hombre de 21 años quien consultó al servicio de urgencias de una institución de tercer nivel de atención de Bogotá, Colombia, por un cuadro clínico de una semana de evolución consistente en dolor en región inguinoescrotal derecha que aumentó progresivamente de intensidad y estuvo acompañado de un pico febril no cuantificado; el paciente indicó como único antecedente médico un trauma craneoencefálico leve sin secuelas a los 20 años. Se realizó estudio con ecografía Doppler testicular en donde se observó trombosis del cordón espermático derecho. Se inició manejó con antibioticoterapia, heparinas de bajo peso molecular y cumarínicos, con lo cual se obtuvo una adecuada respuesta y la resolución del cuadro.
Conclusión. La TVE representa un reto diagnóstico, por lo que se requiere de una alta sospecha clínica, la cual se genera teniendo conocimiento de la entidad e incluyéndola en el diagnóstico diferencial del escroto agudo. La ecografía Doppler es una herramienta fundamental para diagnosticar TVE, además permite iniciar un tratamiento conservador oportuno, seguro y eficaz que evite desenlaces desfavorables para el paciente, lo que resulta ser costo-efectivo.
Condrosarcoma de células claras en tibia proximal. Reporte de caso
Authors: Gutiérrez-Zúñiga Daniela , Martín Helbert , Messa-Botero Oscar , Sotomayor Jerónimo , Linares Francisco
Published: August 2021

Introducción. El condrosarcoma de células claras es un subtipo de tumor poco frecuente del grupo de los condrosarcomas de bajo grado. A diferencia de los condrosarcomas convencionales, estos tumores se presentan principalmente en epífisis de huesos largos. Dadas sus características líticas de aspecto quístico, pueden confundirse con quistes óseos, por lo que su diagnóstico debe hacerse por histopatología e inmunohistoquímica mediante biopsia. Igualmente, la negatividad para citoqueratinas y anticuerpos antiendomisio es una herramienta para descartar el diagnóstico diferencial de metástasis. Su tratamiento es quirúrgico, bien sea con manejo intralesional o resección completa con márgenes libres.
Presentación del caso. Mujer de 46 años quien consultó al servicio de ortopedia oncológica de una institución de IV nivel de atención por un cuadro clínico de 8 meses de evolución consistente en dolor en la cara medial de la rodilla izquierda a nivel de la tibia proximaluna. Se practicaron imágenes diagnósticas que mostraron una lesión quística en el platillo tibial lateral; se ordenó biopsia de la lesión, y mediante histopatología e inmunohistoquímica se diagnosticó condrosarcoma de células claras. Se realizó un manejo quirúrgico con resección de la lesión con márgenes libres y una reconstrucción del defecto óseo con un aloinjerto estructural de tibia proximal, con lo cual se obtuvo una evolución satisfactoria.
Conclusiones. Se presenta el caso de una paciente con un subtipo de condrosarcoma de bajo grado infrecuente en su presentación y localización, quien fue diagnosticada mediante inmunohistoquímica y tratada quirúrgicamente para lograr un salvamento exitoso de su extremidad.
Identification and analysis of pathological defect appearance in superstructures of reinforced-concrete bridges in Chapare region, Bolivia
Authors: Aquino Rocha Joaquin Humberto , Ibarra Villanueva Rolando
Published: August 2021

The objective of this article is to identify and analyze the main pathological manifestations in bridges in the Chapare - Bolivia region, an area characterized by high humidity and constant rainfall throughout the year. The methodology consisted of the selection of five bridges that showed evident signs of deterioration, in which a visual inspection was carried out and, subsequently, different tests: sclerometer, carbonation depth, penetration of chlorides and core extraction. All the bridges present advanced states of deterioration; highlighting corrosion as the main problem, generating detachment of the concrete and risk of collapse. Although the concrete has a compression strength greater than 30 MPa, the existing carbonation process and the different problems encountered compromises it. It is necessary that the entities in charge provide inspection and maintenance programs according to the environmental and structural characteristics of each bridge.
Cibercultura e educação: a comunicação na sala de aula presencial e online
Authors: Silva Marco
Published: August 2021

Este texto vem mostrar que na cibercultura as práticas de ensino e de aprendizagem deparam-se com o contexto sociotécnico do computador e da Internet onde emergem práticas comunicacionais que liberam o processo comunicacional do imperativo unidirecional dos meios de massa (impresso, cinema, rádio e TV) e oportunizam a multidirecionalidade em rede. Para isso, parte dos estudos da cibercultura e traz sugestões para a construção de uma agenda comunicacional capaz de expressar a dinâmica que associa emissão e recepção como pólos antagônicos e complementares na co-criação da comunicação e do conhecimento.
Uma análise sociológica das relações entre a mídia e os intelectuais
Authors: Pereira Fábio Henrique
Published: August 2021

O livro Les intellectuels de médias em France (“Os intelectuais da mídia na França”), que combina discussões conceituais e estudos de caso, reúne trabalhos de oito pesquisadores europeus, apresentados em junho de 2003, por ocasião de um seminário realizado na Universidade de Paris 10.
O que pensam os jornalistas brasileiros sobre a transparência das suas práticas?
Authors: Christofoletti Rogério
Published: August 2021

Neste artigo, apresentamos elementos da percepção dos jornalistas sobre a transparência em sua profissão. Os dados referem-se ao contexto brasileiro e foram colhidos em 2020, por meio de um inquérito online, obtendo 353 respostas de todas as regiões do país. O questionário abordou impressões, atitudes e condições ambientais, no que se refere a comportamentos e disposições de maior abertura sobre a prática profissional. Este artigo se detém sobre a fração das questões (Q1-Q17) que ajuda a compor uma percepção corporativa sobre a transparência, explorando opiniões sobre os pares e sobre as próprias atitudes. Entre outros aspectos, os resultados revelam contradições entre as representações que os jornalistas fazem de si mesmos e suas práticas cotidianas. Eles se veem mais transparentes do que mostram seus gestos, o que permite entrever alguma indisposição para abertura da profissão ao público. Traços de uma cultura profissional decantada, entre outros fatores, ajudam a justificar tais comportamentos.
Levantando a quarta parede
Authors: Santhiago Ricardo
Published: August 2021

Praticantes de história oral têm recentemente se voltado à realização de entrevistas em espaços compartilhados, desafiando uma das premissas do método: a de que um diálogo é tão mais intenso e produtivo quanto mais reservado for o local em que ele se realiza. Neste artigo, recorro a alguns exemplos de entrevistas públicas realizados por pesquisadores baseados em universidades e por criadores que atuam em espaços contíguos para levantar algumas hipóteses sobre os impulsos que conduzem a essa opção metodológica. Em seguida, analiso duas situações, ambas articuladas ao universo da arte, que contribuem para o refinamento da reflexão metodológica sobre os potenciais e limites das entrevistas públicas e, de modo mais amplo, à prática da história oral e da história pública como um todo.
Contextos ideacionales y redes de activistas en procesos de difusión institucional
Authors: Garcé Adolfo , Milanesi Alejandro
Published: August 2021

Los estudios sobre difusión de políticas han adquirido un mayor atractivo y relevancia como forma de comprender las innovaciones y los cambios en políticas públicas. Bajo este concepto exploramos aquí uno de los casos más llamativos de difusión institucional en América Latina: el proceso de transformación de las universidades de América Latina vinculado al movimiento reformista que sacudió a la Universidad de Córdoba, en Argentina, durante 1918. Los principios de esta reforma inspiraron cambios institucionales muy importantes y continúan siendo un eje de las discusiones sobre educación terciaria en la región. La mayor parte de sus preceptos (autonomía política, cogobierno estudiantil, extensión y compromiso social) viven en la actualidad y son defendidos como pilares fundamentales de la universidad latinoamericana. Así, la pregunta principal que este artículo se plantea es: ¿qué puede aportar la expansión del movimiento de reforma universitaria a la teoría de difusión? Nuestra respuesta es que estudiando la difusión de la Reforma de Córdoba es posible entender más a fondo dos dimensiones muy importantes en la circulación de ideas. En primer lugar, la evidencia permite profundizar en el papel del contexto doméstico. El contexto suele ser señalado como restricción al proceso de difusión (explica la distancia entre original y copia). Sin embargo, en este caso el contexto ideacional favoreció la adopción de la reforma. En segundo lugar, la reconstrucción histórica ayuda a entender más a fondo el papel de los emprendedores, en general, y el de un tipo específico de actores: las redes de activistas, en este caso, el movimiento estudiantil.
Honneth e o debate entre liberais e comunitaristas
Authors: Segatto Antonio Ianni , De Moura Matheus Garcia
Published: August 2021

Neste artigo pretende-se discutir a dimensão política presente na origem da teoria do reconhecimento de Axel Honneth, partindo da constatação de que durante a reelaboração de sua tese de habilitação, publicada em 1992 com o título de Luta por reconhecimento, o autor se posiciona pela primeira vez diante do debate entre liberais e comunitaristas e elabora seu conceito formal de eticidade como uma resposta às limitações de cada uma dessas correntes da teoria política contemporânea.
Rola trenera w przygotowaniu współczesnej młodzieży do profesjonalnego uprawiania piłki nożnej.
Authors: Koprukowiak Grzegorz
Published: August 2021

We współczesnym społeczeństwie dochodzi do pogłębiających się zmian w sposobie funkcjonowania w różnych przestrzeniach życiowych, których źródłem jest postępujący rozwój cywilizacyjny, wpływający na charakter i specyfikę pokoleń. Wśród przestrzeni w których owe zmiany są zauważalne, można wyróżnić współczesny charakter pracy zarobkowej, uwarunkowanej przemianami cywilizacyjnymi i gospodarczymi, co w dalszej kolejności przekłada się także na aspekt życia osobistego. W świetle tych przemian, zupełnie nowe znaczenie zyskuje aspekt uczestnictwa w kulturze fizycznej, które obecnie staje się głównie jednym ze sposobów aktywnego wypoczynku dla osób dorosłych. Obok dużej grupy społeczeństwa praktykującej w ramach spędzania wolnego czasu jej różne formy, wyróżnić można grupę dzieci i młodzieży, wśród której sport staje się formą dążenia do marzeń o przyszłej karierze zawodniczej na miarę swoich piłkarskich autorytetów z światowej czołówki. Aspiracje te stanowią długą ścieżkę, w której młody zawodnik obok doskonalenia swoich umiejętności sportowych, uczestniczy w procesie selekcji pozwalającej na wyróżnienie spośród zawodników, szczególnie utalentowanych jednostek, posiadających wyjątkowe predyspozycje do profesjonalnego uprawiania sportu. Proces kształcenia umiejętności sportowych młodego zawodnika, jest równocześnie procesem pedagogicznym w którym szczególną misję posiada trener. Dlatego też celem badań jest zaprezentowanie jego roli w procesie wychowawczym.

Niniejsze rozważania, oparte zostały o przegląd dostępnej literatury naukowej z zakresu pedagogiki, psychologii i socjologii kultury fizycznej, z wykorzystaniem dorobku naukowego z zakresu teorii sportu. Rozważania przebiegają w kluczu zaprezentowania tła społecznego charakterystycznego dla obecnych czasów, w które wpisuje specyfika zawodu profesjonalnego gracza piłki nożnej i wyzwania stojące przed środowiskiem, mające na celu właściwe przygotowanie do profesjonalnego sportu. Kolejnym punktem zawartym w publikacji, będzie zaprezentowanie procesu dojrzewania młodego gracza do zawodowego uprawiania dyscypliny.

W świetle omówionych zagadnień nastąpi wyraźne zauważenie roli współczesnego trenera jako wychowawcy, mentora i opiekuna na drodze wzrastania ku karierze, ale także ku wypracowaniu dobrych postaw u młodego zawodnika jako osoby.

Zaprezentowane badania prowadzą ku wnioskowi dowodzącemu, że kompetencje współczesnego trenera znacząco wykraczają poza samą funkcję czysto sportową. Trener poza kompetencjami ściśle związanymi z pracą na boisku, powinien wykazywać się szeregiem kompetencji miękkich – znajomością podstaw pedagogiki, psychologii, socjologii, które umożliwią mu lepsze zrozumienie środowiska swoich podopiecznych. W ich wyniku staje się możliwe budowanie postawy lidera, autorytetu i kształtowania odpowiednich postaw u młodych zawodników.
SPOŁECZNE ZAKORZENIENIE ARCHITEKTURY NA PRZYKŁADZIE XVII-WIECZNEJ SYNAGOGI W ZAMOŚCIU
Authors: Morawska Wiktoria
Published: August 2021

ABSTRAKT 

Teza. Celem artykułu jest wskazanie społecznego zakorzenienia architektury synagogalnej na przykładzie XVII-wiecznej bóżnicy w Zamościu. Analiza stanowi próbę wykazania związku między usytuowaniem zabytku w strukturze urbanistycznej a przeżyciami mniejszości, historią losów społeczności i  gminy żydowskiej na terenie miasta.

Omówione koncepcje. Z uwagi na charakter podjętego tematu analiza była oparta na badaniach archiwaliów, co stanowi podstawową metodę pracy w ramach dyscypliny historii sztuki. Oprócz studiów materiałów inwentaryzatorskich i samego obiektu w treści artykułu odnoszono się do tez najważniejszych badaczy i badaczek architektury synagogalnej i urbanistyki w Polsce: E. Bergman, J. Jagielskiego, A. Łupienko, A. Zabłockiej-Kos, K. Matyjaszka, M. oraz K. Piechotków. 

Wyniki i wnioski. Analiza wykazała błędność dotychczasowych interpretacji stylistyki synagogi w Zamościu jako sefardyjskiej. Wysuwa się wniosek, że wzorem była – oprócz wcześniejszych bożnic, w których stosowano centralizację głównej sali modlitewnej i podobny układ – architektura kościelna z obszaru Ordynacji Zamojskiej. Świadczy o tym m.in. implikowanie detalu stosowanego w ramach typu kalisko-lubelskiego. Wątek ten wysuwa się także jako nowy problem badawczy, który, jak do tej pory, nie został opisany w kontekście budownictwa judaizmu. 

Jednocześnie wskazuje się na szeroki kontekst społeczny, w którym istnieje przedreformacyjna architektura synagogalna. Przełom XVI i XVII w. był czasem kreowania nowych form w obrębie budownictwa żydowskiego w Polsce i tzw. Złotym Wiekiem Żydów Polskich. Jest to odwrotną tendencją od krajów Europy Zachodniej, z których wysiedlono społeczność żydowską, a rozwój budowlany został wstrzymany. 

Wartość poznawcza podejścia. Największą wartość stanowi oryginalna, dotychczas              nie podejmowana próba wdrażania dyskursu krytycznego wobec silnie rozpowszechnionej teorii ciągłości tradycji hiszpańskiej w ramach architektury bóżnic. Jednocześnie w artykule zaprezentowano dyrektywę metodologiczną, w ramach której zakłada się, że w historii architektury priorytetem nie jest tylko uwzględnianie ergonomiczności, ale warunków społeczno-kulturowych, w których budowla istnieje. Oznacza to potrzebę interdyscyplinarnej analizy dzieła sztuki, w której uwzględnia się nie tylko opis formy, ale interpretację znaczenia, które metaforycznie ma „nosić” realizowany obiekt.

 

Słowa kluczowe: architektura, synagogi, bożnice, socjologia miasta, Zamość, renesans, wschodnia polska