bluuebunny/crossref_metadata_2025 huggingface dataset:
Song type variations of Louisiana Waterthrush (Parkesia motacilla) and their geographic distributions
Authors: Silcock W. Ross , Schwartz Shari L. , Carlini John U. , Dinsmore Stephen J.
Published: September 2021

Louisiana Waterthrush (Parkesia motacilla) is a familiar singer in the Western Hemisphere family Parulidae, yet apparent geographic variations in its song and potentially related causal mechanisms have not received detailed examination in previously published studies. Here, we analyzed song pattern variations of 651 Louisiana Waterthrush singers in audio spectrogram recordings obtained from our field work and publicly accessible bioacoustics archives. Visual and auditory assessment of the introductory note sequence of each song identified three distinct song types (A, B, and C) and most of the songs were assigned to one of these types. Linear Discriminant Analysis and Random Forest methods were used to verify the assignments and showed strong agreement for Type A with slightly less agreement on Types B and C. User error rates (proportion of the Linear Discriminant Analysis classifications that were incorrect) were low for Types A and B, and somewhat higher for Type C, while producer error rates (proportion of the song type for which the Linear Discriminant Analysis was incorrect) were somewhat higher for Types A and C than the minimal levels achieved for Type B. Our findings confirmed that most between-individual variation was in the number of notes and note sequence duration while most within-individual variation resulted from the percent of downstrokes. The location of each singer was plotted on a map of the breeding range and results suggested the song types have large-scale discrete geographic distributions that co-occur in some regions but not range-wide. Evaluation of the distributions provided tentative support for a hypothesis that two of the song types may independently exhibit congruence with the geographic extent of Pleistocene glacial boundaries and the third song type may be distinguished by a lack of congruence, but further investigation is needed to elucidate whether the song variations represent subpopulations with three separate evolutionary histories.
Human papillomavirus 16 L1 gene methylation as a potential biomarker for predicting anal intraepithelial neoplasia in men who have sex with men (MSM)
Authors: Chaiwongkot Arkom , Phanuphak Nittaya , Pankam Tippawan , Bhattarakosol Parvapan
Published: September 2021

The human papillomavirus (HPV) 16 early promoter and L1 gene methylation were quantitatively measured using pyrosequencing assay in anal cells collected from men who have sex with men (MSM) to determine potential biomarkers for HPV-related anal cancer. The methylation patterns of HPV16 genes, including the early promoter (CpG 31, 37, 43, 52, and 58) and L1 genes (CpG 5600, 5606, 5609, 5615, 7136, and 7145), were analyzed in 178 anal samples. The samples were diagnosed as normal, anal intraepithelial neoplasia (AIN) 1, AIN2, and AIN3. Low methylation levels of the early promoter (< 10%) and L1 genes (< 20%) were found in all detected normal anal cells. In comparison, medium to high methylation (≥ 20–60%) in the early promoter was found in 1.5% (1/67) and 5% (2/40) of AIN1 and AIN2-3 samples, respectively. Interestingly, slightly increased L1 gene methylation levels (≥ 20–60%), especially at the HPV16 5’L1 regions CpGs 5600 and 5609, were demonstrated in AIN2-3 specimen. Moreover, a negative correlation between high HPV16 L1 gene methylation at CpGs 5600, 5609, 5615, and 7145 and a percentual CD4 count was found in AIN3 HIV positive cases. When comparing the methylation status of AIN2-3 to that of normal/AIN1 lesions, the results indicated the potential of using HPV16 L1 gene methylation as a biomarker for HPV-related cancer screening.
Pemanfaatan Hasil Riset Kepingan Kerak Samudra Purba dalam Perspektif Dinamika Kerak Bumi Aktual
Authors:   Lembaga Ilmu Pengetahuan Indonesia, Permana Haryadi
Published: September 2021

Penelitian geologi, petrologi, geokimia kepingan kerak samudra purba yang tersebar di beberapa pulau di Indonesia mengindikasikan sebagai jejak konvergensi lempengan bumi di masa lalu. Kepingan-kepingan kerak samudra di Indonesia terbentuk dalam lingkungan tektonik yang beragam, yaitu terbentuk dalam lingkungan busur gunungapi, punggungan tengah samudra, basal kepulauan samudra dan sub-kontinen. Hasil pengukuran umur pembentukan batuan memberikan rentang waktu mulai dari Kala Jura Tengah (157 Juta Tahun Lalu) sampai umur temuda 15-9 Juta tahun lalu atau Kala Miosen Tengah-Akhir. Asal usul dan rentang umur pembentukan kepingan kerak samudra memberikan gambaran baru tatanan geologi dan tektonik terkait dengan pembentukan sumber daya energi atau migas. Secara alamiah komposisi kimia dan kandungan unsur logam ekonomis seperti nikel, krom, kobal, titanium maupun seng yang berbeda dari kerak samudra yang terbentuk dari selubung bumi. Dalam perspektif dinamika kerak bumi aktual, pemahaman dan pengetahuan dasar kerak bumi dapat dijadikan sebagai bahan dalam upaya mitigasi bencana. Pergerakan kerak bumi juga dapat membentuk sumber daya mineral dalam lingkungan kegiatan vulkanik. Kerak samudra yang merupakan alas dari dasar laut sangat strategis sifatnya bagi Indonesia sebagai negara benua maritim. Perluasan wilayah laut di luar 200 nm dalam jangka panjang akan sangat bermanfaat bagi Indonesia.
Hubungan Kadar Docosahexaenoic Acid Terhadap Perlemakan Hati Non Alkoholik Remaja Obesitas
Authors: Lestari Dhina Lidya , Jurnalis Yusri Dianne , Ali Hirowati
Published: September 2021

Latar belakang. Penyakit hati berlemak non alkohol (NAFLD) adalah penyakit yang ditandai dengan timbunan lemak yang signifikan di hepatosit dari parenkim hati yang menyebabkan kerusakan hati berupa peradangan. Prevalensi NAFLD meningkat seiring dengan meningkatnya obesitas pada anak dan remaja. Docosahexaenoic acid (DHA) merupakan salah satu pengobatan farmakologis untuk NAFLD dan belum ada data terbaru yang spesifik untuk pengukuran DHA pada anak NAFLD. Tujuan. Menganalisis hubungan DHA dengan NAFLD , dan mengukur nilai DHA setiap derajat NAFLD. Metode. Lima puluh delapan remaja obesitas (31 laki-laki, 27 perempuan), berusia 14-18 tahun yang terpantau di kota Padang, sejak Juni – Juli 2017. Penelitian ini bersifat observasional cross sectional. Hasil. Tidak ada perbedaan jenis kelamin yang diamati pada NAFLD. Indeks massa tubuh pada kelompok NAFLD lebih tinggi daripada non-NAFLD 30,30±4,21kg/m2 vs 28,70±2,65 kg/m2. Pengukuran derajat penyakit perlemakan hati non alkohol dengan hasil USG masing-masing derajat ringan, sedang dan berat adalah 12(37,5%), 15(46,8%) dan 5(15,6%). Selain itu, kandungan DHA memiliki perbedaan yang signifikan pada masing-masing kelompok, penyakit perlemakan hati non-alkohol vs non-NAFLD 40,46±19,23 menjadi 89,26±41,21µg/ml dengan p<0,0001. Kesimpulan. Nilai DHA signifikan lebih rendah pada kelompok penyakit hati berlemak non alkohol yang dikonversi dengan non-NAFLD. Manajemen diet dengan DHA tinggi penting untuk mencegah dan mengelola obesitas dengan lebih baik.
Asupan Zat Besi Berhubungan dengan Perkembangan Anak Stunting Usia 6 - 36 Bulan di Semarang
Authors: Martiani Maria , Margawati Ani , Mexitalia Maria , Rahmadi Farid Agung , Noer Etika Ratna , Syauqy Ahmad
Published: September 2021

Latar belakang. Salah satu masalah gizi pada anak yaitu stunting (pendek). Salah satu faktor penyebab stunting yakni asupan zat gizi. Salah satu akibat stunting dapat mempengaruhi perkembangan anak. Ibu berperan penting pada asupan gizi serta perkembangan anak. Skrining pada usia dini berperan dalam mengetahui ada tidaknya gangguan perkembangan pada anak stunting.Tujuan. Mengetahui hubungan asupan gizi dengan perkembangan anak stunting usia 6—36 bulan di wilayah Semarang SelatanMetode. Desain penelitian cross sectional yang dilaksanakan di 8 puskesmas di wilayah Semarang Selatan. Data diperoleh dengan cara interview kuesioner serta pemeriksaan perkembangan dilaksanakan dengan instrumen Capute Scales pada bulan September - November 2020. Analisis multivariat regresi linier digunakan untuk mengetahui hubungan perkembangan dengan variabel dengan mengontrol variabel luar (usia, jenis kelamin, status stunting) Hasil. Subjek berjumlah 71 anak stunting. Subjek memiliki asupan energi (63,1%) dan zat besi (66,2%) yang rendah. Terdapat 33,8% anak stunting mengalami suspek gangguan perkembangan, 9,9% gangguan komunikasi dan 11,3% suspek disabilitas intelektual. Uji multivariat regresi linier menunjukkan bahwa asupan zat besi berhubungan positif dengan perkembangan anak stunting (p 0,05).Kesimpulan. Terdapat hubungan signifikan antara asupan zat besi dengan perkembangan anak stunting.
The First Pazyryk Mound: the History of the Initial Stage of Study
Authors: Styazhkina O.V.
Published: August 2021

The article describes the period in the study of the archaeological heritage of Altai, preceding the opening of the First Pazyryk burial mound. The substantiation is given why this particular object was chosen by the Altai expedition of the State Russian Museum for research. The article presents the memories of the participants of the excavations, including from archival sources, giving us an idea of the difficulties they had to face directly during the work and during the transportation of the finds, with a lack of labor and financial resources. The article also identifies the main publications, which reflected the results of the study of the First Pazyryk mound. The work highlights the topic of discussion that arose between M.P. Gryaznov, S.I. Rudenko and S.V. Kiselev on the dating of the monument, as well as between the members of the expedition regarding the introduction of all the obtained material into scientific circulation. The article makes an attempt, relying on existing publications and drawing on archival sources, to consider the history of the initial stage of the study of the First Pazyryk mound, which gave material that is absolutely exceptional in terms of abundance, diversity and scientific value, and still attracts the attention of researchers.
Arc extinction with nitrogen at 1-40 bar in a puffer-like contact configuration
Authors: Støa-Aanensen Nina , Espedal Camilla , Rokseth Oddgeir , Jonsson Erik , Runde Magne
Published: September 2021

To develop cost-eﬃcient subsea switchgear for large sea depths, the extinction of arcs under high ﬁlling pressures must be understood. In this work, arc-extinction experiments have been performed with a puﬀer-like contact conﬁguration using nitrogen at diﬀerent ﬁlling pressures as the current interruption medium. The main ﬁnding is that, for the given contact conﬁguration, the currentinterruption capability was lower at 20 and 40 barabs than at 1 and 10 barabs. While higher pressures result in higher cooling ﬂow rates and longer ﬂow times given the same puﬀer volume, compression spring and nozzle geometry; it does not necessarily improve the arc-extinction capability. This is probably because higher ﬁlling pressures increase the arc voltage and total energy dissipated in the arcing zone. Because the ﬁlling pressure greatly inﬂuences the ﬂow characteristics, the puﬀer design should be optimized for each pressure level.
Mixed or unmixed?
Authors: Diebäcker Marc
Published: September 2021

Marc Diebäcker stellt das Feld des Wohnens für eine Reflexion transdisziplinärer Stadtforschung in den Vordergrund, in welchem Lebenssituationen im Kontext ungleicher Lebensbedingungen exemplarisch untersucht werden können. Dabei wird die disziplinübergreifende Rede vom ›einkommensgemischten‹ bzw. ›sozialdurchmischten‹ Wohnen in der Stadt anhand ihrer revanchistischen, klassistischen und rassistischen Züge problematisiert. Gängige Thesen zu Segregation und Quartierseffekten werden zudem mit Ergebnissen eines angewandten Forschungsprojekts zur Besiedlung und Belegung einer sozialgeförderten Wiener Wohnhausanlage konfrontiert. Abschließend wird für eine transdisziplinäre Stadtforschung argumentiert, die eine alltagsorientierte Perspektive nutzt, um aus der Position der problematisierten Anderen in raumrelationaler Hinsicht, soziale Ungleichheit und Ausschließung in ihrer Analyse
Die nachhaltige Stadtregion als Gestaltungsauftrag der Raumplanung
Authors: Priebs Axel
Published: September 2021

Axel Priebs widmet sich in diesem Beitrag der Frage, welche Möglichkeiten die Raumplanung hat, zur Entwicklung nachhaltiger Stadtregionen beizutragen. Die im Jahr 2015 auf dem Weltgipfel der Vereinigten Nationen verabschiedeten 17 ,Sustainable Development Goals' geben unter anderem das Ziel vor, Städte und Siedlungen inklusiv, sicher, widerstandsfähig und nachhaltig zu gestalten. Gefragt wird, wodurch sich nachhaltige Siedlungsstrukturen auszeichnen, wie Freiräume als ,Grüne Infrastruktur der Stadtregionen' geschützt und entwickelt und wie nachhaltige Einzelhandelsstrukturen geschaffen werden können. Die ,Stadt' wird hier immer in ihrer regionalen Dimension als ,Stadtregion' gesehen. Diskutiert werden auch die institutionellen Strukturen der Stadtregionen. Betont wird der interdisziplinäre Anspruchs der Raumplanung zur Gestaltung der Stadtregion.
Infrastrukturen und Lebensweisen im Wandel
Authors: Bärnthaler Richard , Novy Andreas , Stadelmann Basil
Published: September 2021

Richard Bärnthaler, Andreas Novy und Basil Stadelmann analysieren in diesem Beitrag, basierend auf einem interdisziplinären Forschungsprogramm, städtische Transformationsprozesse als Wechselbeziehung zwischen Infrastrukturkonfigurationen (d.h. kontext-spezifischen materiellen Infrastrukturen und ihren multiskalaren politökonomischen Regelwerken) sowie dominanten soziokulturellen Lebensweisen. Anhand des Beispiels Wien unterscheiden wir vier Phasen dieser historisch-spezifischen Wechselbeziehungen: das Christlich-Soziale Wien vor 1918, das Rote Wien zwischen 1919-1934, das Wohlfahrtskapitalistische Wien nach 1945 und ein Wien des umkämpften Neoliberalismus seit den 1980er Jahren. Abschließend erfolgt ein Ausblick für inter- und transdisziplinäre Stadtforschung.
Plattform-Munizipalismus für digitale Infrastrukturen des Alltagslebens
Authors: Krisch Astrid , Plank Leonhard
Published: September 2021

Digitale Infrastrukturen sind zentraler Bestandteil sowohl der wissenschaftlichen Debatte als auch unseres Alltagslebens geworden. Von Daten, über Plattformen als neue Infrastrukturen bis hin zu Debatten rund um Smart Cities sind meist digitale Infrastrukturen im Zentrum des Erkenntnisinteresses. Der vorliegende Beitrag geht den Fragen nach, 1) welche wissenschaftlichen Disziplinen mit dem Infrastrukturbegriff vereint werden und wie sich dies auf eine interdisziplinäre Forschungsagenda digitaler Infrastrukturen auswirkt; 2) welche alternativen Handlungsmöglichkeiten sich für die lokale Stadtplanungspolitik im Sinne eines Plattform-Munizipalismus ergeben.
Bürgerliche Frauenbilder im 19. Jahrhundert
Authors: Krautwald Barbara
Published: September 2021

»Der Bazar« war zwischen 1854 und 1900 eine der im Bürgertum bekanntesten und meistgelesenen Zeitschriften, die neben Themen wie Mode und Handarbeiten auch die Rolle der Frau diskutierte. Was ist die Natur der Frau? Welche Art der weiblichen Bildung ist angemessen? Welche Lebensentwürfe sind neben dem der Ehefrau und Mutter noch denkbar? Diese und weitere Fragen werden im »Bazar« über Jahrzehnte hinweg verhandelt. Anhand der von konservativ bis liberal reichenden Standpunkte untersucht Barbara Krautwald die sich darin widerspiegelnden sozialen Entwicklungen von generellem weiblichen Selbstverständnis bis hin zum Frauenstudium.
BICICRUZE
Authors: Boel Andressa
Published: September 2021

De maio até setembro de 2019 a BICICRUZE teve como endereço uma casa alugada na Rua Cherubina, em frente à praça central do Cruzeiro dos Peixotos, distrito de Uberlândia-MG. Nesse lugar, Eric, João Gabriel, Erick, João Vitor, Isabela, Luiz Gustavo, Mário, Talisson, e eu, Andressa, imaginamos bicicletas não tradicionais e as desejamos! Desenhamos nossas bicis e refletimos como elas poderiam funcionar, esculpimos e projetamos suas maneiras de usar, ou de estar-a-pedalar. Enquanto desenvolvíamos esses projetos, recolhi algumas peças em desuso em bicicletarias no centro da cidade e as acumulei nesse lugar, que funcionou como nossa residência artística. Por meio de gambiarras sadias, com a serra e solda de Clebinho, assemblamos e aglutinamos essas peças junto a outras que poderiam não fazer parte do mundo bicicletável.
Magnétismes, tensions, harmonies. Du spirituel à l'œuvre
Authors: MELAY Alexandre
Published: September 2021

Cet article s’inscrit dans une perspective de création-recherche. À partir de ma pratique artistique personnelle, je pose la question de la représentation du spirituel, une entité qui n’à priori pas de forme. Au sein de ma pratique, c’est à travers la production d’“objets subjectifs et méditatifs” que je tente de réinterpréter les fondamentaux des exigences spirituelles des pratiques du bouddhisme zen et de retranscrire cette dimension spirituelle à travers des œuvres à l’esthétique minimaliste propre à ces philosophies du vide. Une recherche artistique métaphysique à l’intersection du spirituel et du philosophique, où le zen permet de donner naissance à des œuvres méditatives, aux formes transcendantales, aux qualités spirituelles ou intellectuelles, qui induisent un état spirituel chez ceux qui les reçoivent. Cet article se donne ainsi pour projet de formaliser l’expérience spirituelle vécue, des traductions physiques et tangibles de réflexions philosophiques et mystiques qui invitent à cette expérience participative du “vide”.
Linking voices for peace. Representations of the armed conflict in the Sumapaz region: Tibacuy - Pasca case
Authors: Grismaldo Moreno Ana Mónica , Angarita Buitrago Alfonso Alberto
Published: September 2021

El proyecto titulado “Enlazando voces para la paz. Representaciones del conflicto armado en la región del Sumapaz: Caso Tibacuy - Pasca” es una propuesta que surgió desde la Escuela de Ciencias Sociales, Artes y Humanidades de la UNAD. Los relatos de vida de los pobladores del municipio de Tibacuy, relacionados con los hechos victimizantes acaecidos durante el conflicto armado, tales como el desplazamiento forzado y el homicidio, expresan las representaciones colectivas construidas. Dichos contenidos son socializados en el escenario académico de la Normal de Pasca, a través de los programas radiales emitidos por la Radio UNAD virtual, y allí los estudiantes, a partir de los episodios contados, construyen versiones colectivas de lo acontecido en Tibacuy. A partir de un ejercicio grupal se busca activar un espacio de reflexión, discusión y apropiación en el cual se pretende un acercamiento a la vivencia propia sobre el conflicto armado, que involucra eventos familiares y/o hechos sociales y políticos asociados. Lo anterior permite actualizar las representaciones acerca del conflicto armado como experiencia colectiva localizada. Se avanza, de esta forma, en la posibilidad de escucha y la capacidad de poder entender y comprender al otro, apoyados en la mediación radial, como punto de encuentro que abre la posibilidad de diálogo, de acercamiento y el despertar de la conciencia y de la memoria histórica. Esto es posible, además de la cercanía geográfica, porque ambos municipios compartieron situaciones de conflicto similares.
The knowledge-based economy: conceptual discussions on the changes that have occurred on a global scale since the 1970s
Authors: Isoglio Antonela
Published: September 2021

Este artículo de revisión ofrece un recorrido acerca de las nociones construidas en las ciencias sociales para comprender la naturaleza y la magnitud de las transformaciones de la sociedad capitalista observadas desde mediados de la década de 1970. En este sentido, pueden hallarse interpretaciones que van desde un cambio de ciclo o fase hasta una nueva época. Entre las conceptualizaciones más sobresalientes se encuentra la economía basada en el conocimiento. Sin embargo, frente a este marco conceptual se generaron y consolidaron diversas teorías para comprender la naturaleza de los grandes cambios ocurridos a la luz de las transformaciones históricas del capitalismo, una de las cuales ha sido desarrollada recientemente en América Latina. Este trabajo representa un punto de acceso específico a la pregunta por la dinámica de la totalidad capitalista en el último tercio del siglo XX.
Reflections on the perspectives of environmental and institutional sustainability for territorial planning of the socioecological systems of the páramo and high Andean forest in Colombia
Authors: García Cabana Andrea Carolina , Robayo Triviño Diego Alejandro
Published: September 2021

Los sistemas socioecológicos (SSE) de páramo y bosque altoandino en Colombia son sistemas ecológicos que se caracterizan por sus particularidades de estructura, composición y funcionamiento. Son espacios que se han desarrollado como parte de procesos históricos de relación entre los humanos y la naturaleza, lo cual ha determinado lo que son al día de hoy. Este artículo realiza un análisis de las perspectivas y discursos producidos desde los gobiernos y las políticas públicas en torno a la sostenibilidad ambiental, la institucionalidad y la planeación territorial que se emplean para gestionar los territorios con presencia de estos socioecosistemas.
Celebraciones corporativas en Colombia: espacios de diversidad, inclusión y productividad
Authors: Balanta Castilla Nevis , Paz Montes Luisa Stella , Navarro Mejía David
Published: September 2021

Objetivo: Estudiar las celebraciones corporativas son espacios de inclusión que permiten el encuentro cultural, personal y conductual de las personas que integran una organización, lo que tiene consecuencias positivas sobre la productividad de los equipos humanos en las empresas en el corto, mediano y largo plazo. .
Metodología: Esta investigación es descriptiva, es decir, se divulga la importancia de las celebraciones corporativas en las organizaciones y su relación con la productividad en Colombia. La población objeto de estudio corresponde a trabajadores de medianas y grandes empresas, independientemente del tipo y sector. La muestra fue aleatoria; para las empresas seleccionadas, todos o la mayoría de los empleados fueron encuestados. Algunas de las variables de caracterización consideradas fueron edad, género, antigüedad, rol, cargo, orientación religiosa, etnia, origen regional, símbolos, cultura empresarial y productividad. La recolección de datos se realizó a través de encuestas digitales.
Resultados y conclusiones
Esta investigación reveló que los trabajadores de las empresas colombianas no solo necesitan una remuneración económica para tener una mejor productividad, sino también la motivación y el fortalecimiento de las interacciones sociales derivadas de las celebraciones corporativas, que fortalecen la identidad, estabilidad y posicionamiento de las organizaciones.
La investigación permitió concluir que los trabajadores en las empresas colombianas no sólo necesitan remuneración económica para tener una mejor productividad sino motivación y fortalecimiento de las  interacciones sociales, a partir de las celebraciones corporativas, pues éstas fortalecen la identidad, estabilidad y posicionamiento de las organizaciones.
Detección de descargas parciales a través de radiación ultravioleta en redes de media y alta tensión en Colombia
Authors: Martínez Santa Fernando , Sepúlveda Durán Edwin Fernando
Published: September 2021

Objetivo: Mostrar el alcance del uso de la técnica de medición de descargas parciales mediante radiación ultravioleta, aplicado en la infraestructura eléctrica colombiana de acuerdo a referentes internacionales, así como también definir las características de los fenómenos físicos involucrados.
Metodología: Partiendo de la bibliografía disponible, se definen las características de las descargas parciales, suministrando información de los equipos de medida y las técnicas de medición, para finalmente determinar el grado de incursión de esta técnica en la industria colombiana.
Resultados: Colombia es un consumidor de tecnología desarrollada por otros países (Gallego & Gutiérrez, 2016), específicamente las inspecciones coronográficas son realizadas por grandes industrias del sector energético; este tipo de medición es poco frecuente en la industria nacional, habiendo muy pocas empresas que ofrecen el servicio.
Conclusiones: La técnica de coronografía es muy costosa para ser usada en pequeñas empresas, sin embargo, en grandes industrias se justifica su aplicación al prevenir grandes paradas en procesos industriales.
Naturbasierte Lösungen für Klimaschutz und Klimaanpassung in der vietnamesischen Stadt Hue
Authors: Stolpe Fabian
Published: August 2021

Städtische Ballungsräume spielen beim Klimaschutz und der Klimaanpassung eine zentrale Rolle. Aufgrund der hohen Konzentration von Bevölkerung und Infrastrukturen sind sie von den Auswirkungen des Klimawandels besonders stark betroffen. Gleichzeitig sind sie durch hohe Treibhausgasemissionen selbst Mitverursacher des Klimawandels. Wie können Städte diesen Herausforderungen begegnen?
ERGENLERİN PROBLEMLİ SOSYAL MEDYA KULLANIMLARINDA YALNIZLIK DÜZEYLERİ VE DUYGULARI YÖNETME BECERİLERİNİN ÇOKLU ROLÜ
Authors: YELPAZE İsmail
Published: August 2021

Günümüzde sosyal medyanın kullanımı özellikle ergenler için problematik hale gelmiştir. Bu çalışmanın amacı, ergenlerin yalnızlık düzeyi ile problemli sosyal medya kullanımları arasındaki ilişkide duyguları yönetme becerilerinin aracılık rolünü incelemektir. Bu kapsamda beş farklı liseden 75’i kız, 59’u erkek olmak üzere toplam 134 lise öğrencisinden veri toplanmıştır. Araştırma nicel araştırma desenlerinden ilişkisel yordayıcı desene göre yürütülmüştür. Veriler Sosyal Medya Bozukluğu Ölçeği, UCLA Yalnızlık Ölçeği, Duyguları Yönetme Becerileri Ölçeği ve kişisel bilgi formu ile toplanmıştır. Verilerin analizinde yapısal eşitlik modellemesi kullanılmıştır. Duyguları yönetme becerilerinin aracılık etkisinin anlamlı olup olmadığını belirlemek amacıyla da Bootstrapping yöntemi kullanılmıştır. Analizler sonunda yalnızlık, duyguları yönetme becerisi için, duyguları yönetme becerisi de problemli sosyal medya kullanımı için anlamlı birer yordayıcı olarak bulunmuştur. Ayrıca yalnızlık ile problemli sosyal medya kullanımı arasındaki ilişkide duyguları yönetme becerisinin tam aracılık rolüne sahip olduğu bulunmuştur. Sonuç olarak yalnızlık yaşayan ergenlerin duyguları yönetme becerisi azalmakta ve problemli sosyal medya kullanım davranışları artmaktadır.
SINIF ÖĞRETMENLERİNİN ACİL UZAKTAN EĞİTİM SÜRECİNDEKİ HAZIRBULUNUŞLUKLARI VE GÖRÜŞLERİ
Authors: BARAN Aslihan , SADIK Olgun
Published: August 2021

Bu araştırmanın amacı Covid-19 pandemisi ile başlayan acil uzaktan eğitim süreci ile ilgili sınıf öğretmenlerinin hazırbulunuşluklarını ve görüşlerini ortaya koymaktır. Nitel araştırma türünün fenomenoloji deseniyle modellenmiş bu araştırmada katılımcılar İstanbul’da bulunan bir özel okulda görev yapmakta olan 15 sınıf öğretmenidir. Çalışmada veri toplama tekniği olarak yarı yapılandırılmış görüşme tekniği kullanılmıştır. Veriler analiz edilirken tematik analiz tekniği kullanılmıştır. Araştırmada katılımcıların uzaktan eğitim ile ilgili ön bilgilerinin olduğu fakat daha öncesinde deneyimleri olmadığı ortaya çıkmıştır. Katılımcıların uzaktan eğitimin pandemi sürecinde eğitim açığını kapattığına vurgu yaparken, ölçme değerlendirme sürecinde büyük eksiklikler olduğu görüşünü ortaya atmıştır. Katılımcılar kullanılan uzaktan eğitim uygulamalarını basit ve işlevsel olarak gördüklerini fakat bunların arasında whiteboard uygulamasının işlevsel olmadığını belirtmiştir. Bu araştırma ileride bu konuda araştırma yapmak isteyen araştırmacılara öneriler sunmaktadır.
The multiple uses of iThenticate in doctoral education: Policing malpractice or improving research writing?
Authors: McCulloch Alistair , Behrend Monica , Braithwaite Felicity
Published: September 2021

This article provides a description and analysis of the way in which research degree students and their supervisors at one Australian university (the University of South Australia) use a popular online plagiarism-detection system, iThenticate. The study identifies how these two groups use iThenticate by analysing usage data together with data from an anonymous online survey conducted 12 months after the university took out a pilot subscription to the system. One hundred and nineteen students and 26 supervisors responded to the survey, representing 61% and 43% of the active users in each category. The survey found that the two groups of respondents used the system differently but that, while for both groups iThenticate’s regulatory function in preventing plagiarism (whether international or accidental) was important, the system’s potential educational function in improving research writing capability and publication was equally important. The study highlights the value of regarding the use of anti-plagiarism software so as to encourage a move way from a simple focus on its punitive regulatory dimension and towards its educational possibilities and suggests directions for future research on the relationship between this type of software and the ways scholars work with other people’s texts to recreate meanings and develop original contributions.

Implications for practice or policy:

Online plagiarism detection systems (such as iThenticate) can be used either negatively to police doctoral students’ practice or positively to improve their research writing practice.

Academic developers should promote a positive approach, aimed at improving research writing practice, as the preferable pedagogy in using online plagiarism-detection systems.
Research on the emotional tendency of web texts based on long short-term memory network
Authors: Li Xiaojie
Published: September 2021

Through the analysis of emotional tendency in online public opinion, governments and enterprises can stabilize people’s emotion more effectively and maintain social stability. The problem studied in this paper is how to analyze the emotional tendency of online public opinion efficiently, and finally, this paper chooses deep learning algorithm to perform fast analysis of emotional tendency of online public opinion. This paper briefly introduced the structure of the basic model used for emotional tendency analysis of online public opinion and the convolutional neural network (CNN) model used for text emotion classification. Then, the CNN model was improved by long short-term memory (LSTM). A simulation experiment was carried out on MATLAB for the improved text emotion classification model to verify the influence of activation function type on the improved model and the performance difference between the improved model and support vector machine (SVM) and traditional CNN models. The results showed that the improved classification model that adopted the sigmoid activation function had higher accuracy and was less affected by language than the relu and tanh activation functions; the improved classification model had the highest accuracy, recall rate, andF-value in classifying emotional tendency of web texts, followed by the traditional CNN model and the SVM model.
On the evolutionary bifurcation curves for the one-dimensional prescribed mean curvature equation with logistic type
Authors: Zhang Jiajia , Qiao Yuanhua , Duan Lijuan , Miao Jun
Published: August 2021

We study the bifurcation diagrams and exact multiplicity of positive solutions for the one-dimensional prescribed mean curvature equation

−

u

′

1
+

u

′
2

′

=
λ

u

1
+
u

p

,

−
L
<
x
<
L
,

u

(

−
L

)

=
u

(

L

)

=
0
,

\left\{\begin{array}{l}-{\left(\frac{{u}^{^{\prime} }}{\sqrt{1+{u}^{^{\prime} 2}}}\right)}^{^{\prime} }=\lambda {\left(\frac{u}{1+u}\right)}^{p},\hspace{1.0em}-L\lt x\lt L,\\ u\left(-L)=u\left(L)=0,\end{array}\right.

where

λ

\lambda

is a bifurcation parameter, and

L
,
p
>
0

L,p\gt 0

are two evolution parameters. We prove that on the

(

λ
,
‖
u

‖

∞

)

\left(\lambda ,\Vert u{\Vert }_{\infty })

-plane, for

0
<
p
≤

2

4

0\lt p\le \frac{\sqrt{2}}{4}

, the bifurcation curve is

⊃

\supset

-shaped bifurcation starting from

(

0
,
0

)

\left(0,0)

. And for

p
=
1
,
f

(

u

)

=

u

1
+
u

p=1,f\left(u)=\frac{u}{1+u}

is a logistic function, then the bifurcation curve is also

⊃

\supset

-shaped bifurcation starting from

π

2

4

L

2

,
0

\left(\frac{{\pi }^{2}}{4{L}^{2}},0\right)

. While for

p
>
1

p\gt 1

, the bifurcation curve is reversed

ε

\varepsilon

-like shaped bifurcation if

L
>

L

∗

L\gt {L}^{\ast }

, and is exactly decreasing for

λ
>

λ

∗

\lambda \gt {\lambda }^{\ast }

if

0
<
L
<

L

∗

0\lt L\lt {L}_{\ast }

.
An overview of methods for production and detection of silver nanoparticles, with emphasis on their fate and toxicological effects on human, soil, and aquatic environment
Authors: Ghobashy Mohamed Mohamady , Elkodous Mohamed Abd , Shabaka Soha Hamdy , Younis Sherif A. , Alshangiti Dalal Mohamed , Madani Mohamed , Al-Gahtany Samera Ali , Elkhatib Walid F. , Noreddin Ayman M. , Nady Norhan , El-Sayyad Gharieb S.
Published: August 2021

Silver nanoparticles (AgNPs) have been extensively used in various industries; however, this is accompanied by several implications to humans and the environment. This review focuses on different aspects of AgNPs including the production and detection techniques, their fate, and dynamics in response to different environmental factors. In addition, this review illustrates the toxicity mechanism and the interaction of AgNPs with different matrices, such as aquatic environment, soil, crops, and humans. Reduction measures and future research are discussed.
Associations of multiple (≥5) chronic conditions among a nationally representative sample of older United States adults with self-reported pain
Authors: Axon David R. , Arku Daniel
Published: September 2021

Objectives

The association between an individuals’ demographic and health characteristics and the presence of multiple chronic conditions is not well known among older United States (US) adults. This study aimed to identify the prevalence and associations of having multiple chronic conditions among older US adults with self-reported pain.

Methods

This retrospective, cross-sectional study used data from the 2017 Medical Expenditure Panel Survey. Study subjects were aged ≥50 years and had self-reported pain in the past four weeks. The outcome variable was multiple (≥5) chronic conditions (vs. <5 chronic conditions). Hierarchical logistic regression models were used to identify significant associations between demographic and health characteristics and multiple chronic conditions with significance indicated at an a priori alpha level of 0.05. The complex survey design was accounted for when obtaining nationally-representative estimates.

Results

The weighted population was 57,074,842 US older adults with pain, of which, 66.1% had ≥5 chronic conditions. In fully-adjusted analyses, significant associations of ≥5 comorbid chronic conditions included: age 50–64 vs. ≥65 years (adjusted odds ratio [AOR]=0.478, 95% confidence interval [CI]=0.391, 0.584); male vs. female gender (AOR=1.271, 95% CI=1.063, 1.519); white vs. other race (AOR=1.220, 95% CI=1.016, 1.465); Hispanic vs. non-Hispanic ethnicity (AOR=0.614, 95% CI=0.475, 0.793); employed vs. unemployed (AOR=0.591, 95% CI=0.476, 0.733); functional limitations vs. no functional limitations (AOR=1.862, 95% CI=1.510, 2.298); work limitations vs. no work limitations (AOR=1.588, 95% CI=1.275, 1.976); little/moderate vs. quite a bit/extreme pain (AOR=0.732, 95% CI=0.599, 0.893); and excellent/very good (AOR=0.375, 95% CI=0.294, 0.480) or good (AOR=0.661, 95% CI=0.540, 0.810) vs. fair/poor physical health.

Conclusions

Approximately 38 million of the 57 million US older adults with pain in this study had ≥5 chronic conditions in 2017. Several characteristics were associated with multiple chronic conditions, which may be important for health care professionals to consider when working with patients to manage their pain.

This study was approved by The University of Arizona Institutional Review Board (2006721124, June 12, 2020).
Schwindende religiöse Musikalität im Alter? – Religiosität, Kirchenbindung und Kirchenaustritte von Frauen
Authors: Wuckelt Agnes
Published: September 2021

Die Zahl der Kirchenaustritte in Deutschland steigt beständig seit 2018, dem Bekanntwerden des Ausmaßes des sexuellen Missbrauchs von Minderjährigen durch Kleriker. Auch die Zahl der die Kirche verlassenden Frauen steigt. Was bewegt sie? Wie kommt es dazu, dass vermehrt auch ältere Frauen, die weithin Kirche tragen, ihrer Kirche den Rücken kehren? Ist es ein Indiz für eine schwindende Musikalität? Der Beitrag geht dieser Frage anhand von biografischen Aussagen von Frauen nach.
A fixed point theorem involving rational expressions without using Picard iteration
Authors: Fulga Andreea
Published: September 2021

In this paper, we consider a certain fixed point theorem that contains some rational expressions. The main aim of this paper is to prove a fixed point theorem without using the Picard iteration.
Genericity of chaos for colored graphs
Authors: Lijó Ramón Barral , Nozawa Hiraku
Published: September 2021

To each colored graph one can associate its closure in the universal space of isomorphism classes of pointed colored graphs, and this subspace can be regarded as a generalized subshift. Based on this correspondence, we introduce two definitions for chaotic (colored) graphs, one of them analogous to Devaney’s. We show the equivalence of our two novel definitions of chaos, proving their topological genericity in various subsets of the universal space.
Algebraic entropy of endomorphisms of M-sets
Authors: Zava Nicolò
Published: September 2021

The usual notion of algebraic entropy associates to every group (monoid) endomorphism a value estimating the chaos created by the self-map. In this paper, we study the extension of this notion to arbitrary sets endowed with monoid actions, providing properties and relating it with other entropy notions. In particular, we focus our attention on the relationship with the coarse entropy of bornologous self-maps of quasi-coarse spaces. While studying the connection, an extension of a classification result due to Protasov is provided.
Sensitivity enhanced roll-angle sensor by means of a quarter-waveplate
Authors: Chen Chia-Wei , Hartrumpf Matthias , Längle Thomas , Beyerer Jürgen
Published: August 2021

Attitude metrology (roll, pitch, and yaw) plays an important role in many different fields. Roll angle is considered the most difficult measurement quantity in angular displacements compared to pitch and yaw angles because the rotation axis of the roll angle is parallel to the probe beam. In this work, a sensitivity enhanced roll-angle sensor is presented. The principle is based on the polarization change of a sensing unit (quarter-waveplate). The polarization model is analyzed by Mueller matrix formalism. The Stokes parameters are detected by a Stokes polarimeter. The novel coaxial design improves the sensitivity and reduce the complexity of optical system alignment by means of a fixed quarter-waveplate. The proposed sensor provides a simple setup to measure roll angles with a high sensitivity of 0.006∘ and a long unambiguous measurement range of 180∘.
Epistemological Intersections of Buddhism and Narrative Family Therapy
Authors: Eppler Christie , Cobb Rebecca A. , Bien Sarah , Wright Perry Thomas
Published: September 2021

Researchers conducted a focus group to explore the epistemological intersections between Buddhism and narrative family therapy (NFT). The data's themes indicate areas of overlap as well as potential disconnect regarding NFT's systemic understanding, evolving stories, and empowering epistemologies. These areas of convergence and divergence point to possibilities for the meaningful incorporation of Buddhist teachings and principles within the context of spiritually integrated NFT practice.
D. W. Winnicott, André Green, and Rosemary Dinnage: Some Thoughts on the Interplay of Transitional Objects and Object Destruction
Authors: Kitron David G.
Published: September 2021

In this paper, the author attempts to arrive at a comprehensive outline of Winnicott's developmental theory. This theory encompasses the infant's emergence from total dependence and subject/object merging to what the author refers to as relative independence and relative subject/object separation (in Winnicott's words, “separation that is a not a separation but a form of union” [1971a, p. 98]). This conceptualization is based mainly on an amalgam of Winnicott's two well-known papers, on transitional objects and phenomena (1953) and on the use of an object (1969). The author also refers to André Green's notions of the importance of the negative and of the “dead mother” in reference to Winnicott's work. To demonstrate the clinical implications of the paper, the author discusses in detail the case of Rosemary Dinnage, as described by both Winnicott and Green and as reported directly by herself.
Female-dominant estrogen production in healthy children before adrenarche
Authors: Igarashi Maki , Ayabe Tadayuki , Yamamoto-Hanada Kiwako , Matsubara Keiko , Sasaki Hatoko , Saito-Abe Mayako , Sato Miori , Mise Nathan , Ikegami Akihiko , Shimono Masayuki , Suga Reiko , Ohga Shouichi , Sanefuji Masafumi , Oda Masako , Mitsubuchi Hiroshi , Michikawa Takehiro , Yamazaki Shin , Nakayama Shoji , Ohya Yukihiro , Fukami Maki
Published: September 2021

Objective

Ultra-sensitive hormone assays have detected slight sex differences in blood estradiol (E2) levels in young children before adrenarche. However, the origin of circulating E2 in these individuals remains unknown. This study aimed to clarify how E2 is produced in young girls before adrenarche.

Design

This is a satellite project of the Japan Environment and Children’s Study organized by the National Institute for Environmental Studies.

Methods

We collected blood samples from healthy 6-year-old Japanese children (79 boys and 71 girls). Hormone measurements and data analysis were performed in the National Institute for Environmental Studies and the Medical Support Center of the Japan Environment and Children’s Study, respectively.

Results

E2 and follicle stimulating hormone (FSH) levels were significantly higher in girls than in boys, while dehydroepiandrosterone sulfate (DHEA-S) and testosterone levels were comparable between the two groups. Girls showed significantly higher E2/testosterone ratios than boys. In children of both sexes, a correlation was observed between E2 and testosterone levels and between testosterone and DHEA-S levels. Moreover, E2 levels were correlated with FSH levels only in girls.

Conclusions

The results indicate that in 6-year-old girls, circulating E2 is produced primarily in the ovary from adrenal steroids through FSH-induced aromatase upregulation. This study provides evidence that female-dominant E2 production starts several months or years before adrenarche. The biological significance of E2 biosynthesis in these young children needs to be clarified in future studies.
Arising Problems in Managing Virtual Project: Research on International Virtual Project Team Leaders
Authors: Kukytė Aistė
Published: September 2021

Although the prevalence of project teams in international organizations is growing rapidly, while influencing the governance of organizations at the global, regional, and local levels, the response of organizations to such changes has been slower, according to authors A. I. Mockaitis, L. Zander, and H. De Cieri (2018). Organizations need to look at virtual project team development opportunities, methods, tools to learn to work in a multicultural space. The uptake of improvement opportunities for organizations would have a positive impact on many aspects like competition, efficiency, and reputation. In this context, it is important to analyse and research the uniqueness of virtual project teams and the problems arising in the management of these teams, because in the international business environment, the operation of these teams is a necessary condition for business to operate effectively.

The article analyses the emerging problems in virtual project team management in international companies. A theoretical overview of possible problems in managing virtual project teams is presented, the results of the performed qualitative research are presented. During the research, managers working in international companies who lead a virtual project team were interviewed using the qualitative research method. The study was conducted in 2019-2020 and involved 9 informants working in Lithuania, the United Kingdom, the United States, Bangladesh, France, Malaysia, and Poland.

The results of the study revealed the opinion of virtual project team leaders how these teams differ from traditional teams. The results revealed problems that may arise in the management of virtual project teams, such as misunderstanding and ambiguity of transmitted information, lack of emotion, presence and loss of information, higher time costs for work tasks, different, culturally influenced work principles and etiquette, and loss of personal and work balance boundaries. These problems are addressed in several ways, openly throughout the group, individually or through an external team.
Saussure, miraculeusement retrouvé / Saussure, miraculously rediscovered
Authors: Melnikienė Danguolė
Published: September 2021

Loïc DEPECKER, Saussure tel qu'en lui-même. D'après les manuscrits, Paris, Éditions Champion, 2020, 264 p.
The Length of Gomco Clamp Timing and Its Effect on Bleeding
Authors: Monroe Kimberly K. , Razoky Perra , Murphy Shannon , Skoczylas Maria , Kaciroti Niko , McCaffery Harlan , Mychaliska Kerry P.
Published: September 2021

BACKGROUND

Bleeding is the most common complication of circumcisions in newborns. Gomco clamps are used to perform neonatal circumcisions. Although a clamp time of 5 minutes is recommended, there is no evidence to support this recommendation.

METHODS

Circumcisions performed by attending physicians from the Division of Pediatric Hospital Medicine at an academic children’s hospital were split into 2 groups. Group 1 had a clamp time of 5 minutes. Group 2 did not have a clamp time minimum. Nursing staff examined for bleeding at intervals of 15- and 30-minutes’ postprocedure. Bleeding was determined to be significant if pressure and/or a microfibrillar collagen hemostat agent was applied.

RESULTS

The study sample contained 23 physicians who saw a total of 1252 patients: 13 physicians (647 patients) in group 1 and 10 physicians (605 patients) in group 2. The average clamp time in group 2 was 2 minutes, 5 seconds. The estimated percentage of circumcisions that required microfibrillar collagen hemostat application was 5.1% (95% confidence interval [CI], 3.1–8.1) for group 1 and 5.6% (95% CI: 3.5–8.8]) for group 2. Circumcisions that had pressure applied were estimated to be 0.6% (95% CI: 0.2–1.7) for group 1 and 1.3% (95% CI: 0.5–3.1) for group 2. The difference between groups, in both categories, was not statistically significant.

CONCLUSIONS

In this prospective study we evaluated clamp time duration and bleeding outcomes for neonatal circumcision. Clamp time does not appear to have an association with bleeding risk. Providers need not maintain a 5-minute clamp time to decrease postprocedural bleeding.