bluuebunny/crossref_metadata_2025 huggingface dataset:
Les épisodes de poussières désertiques en France métropolitaine de début 2021
Authors: Kreitz Michaël , Heymes Gaétan
Published: April 2021

La fin d'hiver et le début de printemps météorologiques 2021 ont été marqués par de nombreux épisodes de remontées de poussières désertiques. Ces situations n'ont rien d'exceptionnel, mais leur répétition et leurs conséquences quelquefois spectaculaires méritent quelques précisions.
The essence of innovative behavior of soldiers in Polish Army
Authors: Zielińska Małgorzata
Published: April 2021

Zachowanie się żołnierzy zawodowych w służbie wojskowej w Siłach Zbrojnych RP jest innowacyjne. Dowodem na to są liczne opracowania naukowe. Celem niniejszego artykułu jest przedstawienie krytycznej analizy literatury przedmiotu oraz dostępnych raportów z badań społecznych w wojsku. Celem utylitarnym jest diagnoza zachowań i postaw utalentowanych żołnierzy zawodowych służących w Siłach Powietrznych RP na podstawie badań własnych. Liczne korelacje między czynnikami stanowią wkład do nauki. Artykuł składa się ze wstępu, analizy literatury przedmiotu, badań Wyższej Szkoły Oficerskiej Sił Powietrznych i Wojskowego Biura Badań Społecznych oraz z części empirycznej badającej postawy wobec służby utalentowanych żołnierzy zawodowych i zakończenia. Badania społeczne na żołnierzach zawodowych oraz krytyczna analiza litera-tury przedmiotu zostały przeprowadzone w latach 1999-2020. Natomiast badania (sondaż diagnostyczny) wśród utalentowanych żołnierzy zawodowych w Siłach Powietrznych RP w 2015 roku. Badani żołnierze spełniali cztery główne kryteria: służyli w Siłach Powietrznych RP, byli postrzegani jako utalentowani przez swoich przełożonych, wyróżniali się wieloma kompetencjami podczas służby wojskowej, osiągali wybitne rezultaty podczas realizacji zadań operacyjno-taktycznych.
Natural Physics
Authors: Barrau Aurélien
Published: April 2021

Aurélien Barrau reviews the recent disappointing results from the Large Hadron Collider. Without any sign of new physics, without any confirmation of popular theories such as supersymmetry, the field needs to be fundamentally reconsidered.
On the Governance of Bitcoin
Authors: Dréan Gérard
Published: April 2021

The bitcoin network has evolved in such a way that the distribution of governance has become asymmetric. If users wish to live under different rules, they automatically form a separate community.
Economic Models and the Crisis
Authors: Boublil Alain
Published: April 2021

Disequilibria in private finances could not have been accounted for in the lead up to the economic crisis of 2008. This was why economists had not seen anything coming.
Linguistic Archaeology
Authors: Leone Mark
Published: April 2021

An archaeologist of Christianity explores how linguistics might be linked to his field, and finds the common core to be an imaginary world, reached through worldly means.
How Things Hang Together
Authors: Scialabba George
Published: April 2021

George Scialabba reviews Convergence: The Idea at the Heart of Science by Peter Watson, considering its “master narrative” of the progressive unification of the sciences, from physics and chemistry to genetics and linguistics, and beyond.
Spheres
Authors: Lemmens Pieter
Published: April 2021

From microspheres to macrospheres: Pieter Lemmens reviews German philosopher Peter Sloterdijk’s Foams: Plural Spherology, recently translated into English, the conclusion of his massive Spheres trilogy.
A View from the Bridge
Authors: Paquette Natalie
Published: April 2021

A line of influence has always run from mathematics to physics. Einstein expressed general relativity using tools created sixty years earlier by Riemann. Mathematicians discovered group theory long before physicists. Natalie Paquette explores some intriguing correlations.
The Logic of MAD
Authors: Wilson Ward
Published: April 2021

Acting crazy can incite crazy actions in return. As a nuclear strategy, the madman theory fails because acting like a madman could lead to your adversary losing his head.
On Development and Evolution
Authors: Schaffner Kenneth
Published: April 2021

The author of Behaving: What’s Genetic, What’s Not, and Why Should We Care? comments on developmental processes and the strength of evolutionary explanations for behavior.
Spontaneous Symmetry Breaking
Authors: Brézin Édouard
Published: April 2021

Broken symmetries encompass a large number of different phenomena occurring at different scales. Édouard Brézin examines how symmetry has become central to understanding the organization of the universe.
Psychological Fidelity
Authors: Jackson Allyn
Published: April 2021

Never a mathematical star during his lifetime, Emil Post created and pursued his research ideas largely on his own. In the decades since his death in 1954, the fundamental concepts he developed have proven exceptionally fertile. Allyn Jackson provides a masterful account of the tragic life and remarkable contributions of an oft-overlooked mathematical pioneer.
TAMAN DAN PERANANNYA TERHADAP AKTIVITAS BERJALAN KAKI DI KOTA YOGYAKARTA
Authors: Wulandari Lucia Vina
Published: April 2021

Taman sering digunakan pada upaya peningkatan aktivitas berjalan kaki karena keduanya berkaitan dengan aktivitas fisik dan bersifat ramah lingkungan. Dewasa ini, aktivitas berjalan kaki semakin perlu dikembangkan untuk mewujudkan kota yang berkelanjutan. Studi ini membahas mengenai taman dan peranannya terhadap aktivitas berjalan kaki melalui metode penyebaran kuisioner kepada pengunjung taman rekreasional di Kota Yogyakarta dan observasi lapangan. Selanjutnya data yang diperoleh dianalisis menggunakan metode statistik. Hasil studi menunjukkan bahwa meskipun taman dijadikan sebagai ruang untuk beraktivitas fisik, namun hanya 14.6% dari total responden yang memiliki preferensi berjalan kaki untuk pergi menuju ke taman. Berjalan kaki yang merupakan salah satu aktivitas fisik tidak banyak dipilih pengunjung taman sebagai moda transportasi menuju ke taman. Jarak tempuh dan durasi menuju ke taman menjadi salah satu faktor yang berkaitan dengan preferensi berjalan kaki. Semakin jauh jarak yang ditempuh responden maka akan semakin kecil preferensi berjalan kaki yang dimiliki oleh responden. Mereka akan cenderungÂ  untuk tidak memilih berjalan kaki sebagai moda transportasi yang digunakan untuk menuju ke taman. Selain itu, jarak dan durasi tempuh juga memiliki hubungan dengan intensitas kunjungan ke taman. Jarak tempuh yang jauh akan mengurangi intensitas kunjungan ke taman. Hasil lainnya, tinggi rendahnya intensitas kunjungan ke taman akan berdampak pada tinggi rendahnya frekuensi berjalan kaki. Sehingga berdasarkan hasil tersebut, keberadaan taman dapat memberikan dampak pada aktivitas berjalan kaki di Kota Yogyakarta.
The Profile of Children Diagnosed with ADHD in Bihor County. Descriptive Data
Authors: Drugas Ioana
Published: April 2021

Although the topic of the profile of children with Attention Deficit Hyperactive Disorder (ADHD) is important for those involved in therapy or teaching, we found very few studies focusing on Romanian populations, and those targeting the North-Western region (Bihor County) are even fewer. ADHD is the most common childhood disorder (Aman et al., 1998), and it is important not only to know and understand the symptoms, but also to pay attention to the cultural specificity of the ADHD diagnosis, if it is possible. We conducted a documentary analysis, aiming to identify the profile of children diagnosed with ADHD in Bihor County and in this regard, we analyzed 196 files registered at the Municipal Hospital from Oradea in 2015. We focused on the demographic data, the symptoms, the comorbid disorders, the treatments, the school environment and type. Our findings confirmed that boys diagnosed with ADHD are more numerous than girls, and we also found significant differences between children depending on their ADHD core symptoms.
The role of modern neoadjuvant radiotherapy in the combined treatment of locally advanced rectal cancer
Authors: Pan`shin Georgiy , Sidibe Nelly , Izmailov Timur
Published: April 2021

Currently, rectal cancer is one of the leading pathologies in the structure of cancer morbidity and mortality, both in Russia and around the world.                                                                                                      Thus, despite the improvement of existing and development of new methods for surgical treatment and anesthesia, as well as the introduction of the use of radio-and chemotherapy as an adjunct to surgical stage of the treatment, colorectal cancer still has a very high mortality rate among this cohort of cancer patients, and, primarily, due to the fact that approximately 30% of cases it is diagnosed at a very late stages of the disease. And, at the same time, combined and complex therapy to date does not contribute to improving the long-term results of special treatment, which, in the end, range from a complete response, in particular, during radiotherapy treatment, up to absolute resistance to its implementation.                                                                              However, to date, there are already studies confirming the link between radioresistance and gene expression, which induce a response to the DNA damage checkpoint and increase the ability to repair DNA. At the same time, molecular biomarkers have a definite potential to predict the response to, in particular, neoadjuvant chemoradiotherapy for rectal cancer.                                                                                                                                                                        This brief review examines the evolution and current state of neoadjuvant (preoperative) chemoradiotherapy for locally advanced rectal cancer (MRPC). At the same time, it should be emphasized that randomized studies and meta-analyses of recent publications justify the expediency of its use in this category of cancer patients.  Modern strategies for treating patients with locally advanced rectal cancer and radiotherapy regimens used in this clinical situation are also briefly considered, as well as the prospects for using molecular genetic markers of radiosensitivity and their possible impact on the prognosis of this cancer.
Cervical cancer in women of the Republic of Buryatia (morbidity and mortality compared in subjects of the Siberian Federal District and in Russia as a whole)
Authors: Chimitdorzhieva Tat`yana
Published: April 2021

Analysis of the morbidity and mortality dynamics of the female population of cervical cancer (CC) of the Siberian Federal District (SFO) as a whole, as well as by its individual subjects for 18 years, from 2000 to 2017. It showed a steady increase in the incidence of this form of cancer (an increase of 37.3%) and a decrease in mortality (a decrease of 11.7%) in the region as a whole and in all its subjects in comparison with those in the Russian Federation (RF). The steadily high incidence rate of cervical cancer during the period analyzed was recorded in Buryatia - 23.1 ± 1.9, after the Trans-Baikal Territory - 29.6 ± 1.7; and the Republic of Tyva - 27.7 ± 2.3; in the neighboring Irkutsk region - 19.3 ± 0.7 cases per standardized 100 thousand population, the lowest - in Kemerovo - 12.8 ± 0.5 and Novosibirsk region - 12.2 ± 0.3 regions. The consistently high incidence rate of cervical cancer during the analyzed period was recorded in the Trans-Baikal Territory - 29.6 ± 1.7; in the Republics of Tyva - 27.7 ± 2.3 and Buryatia - 23.1 ± 1.9, in the Irkutsk region - 19.3 ± 0.7 cases per standardized 100 thousand people, the lowest - in Kemerovo - 12.8 ± 0.5 and Novosibirsk - 12.2 ± 0.3 regions.The Siberian Federal District leads among other regions of Russia in the incidence of cervical cancer in women (especially in Transbaikalia, Tuva, Buryatia and Irkutsk): from 2000 to 2017, theincidence in the region increased 1.4 times with a forecast of further growth, while mortality rates indicate a positive trend - stabilization of the process. In these territories, the carcinogenic situation is determined by the interaction of a complex of various subsystems comprising it: natural, industrial, and social.

Key words: cervical cancer; incidence rate; Siberian Federal District.
U-Pb radiometric age of Nunarsuit pegmatite, Greenland: constraints on the timing of Gardar magmatism
Authors: Finch Adrian A. , Mansfeld Joakim , Andersen Tom
Published: April 2021

A precise U-Pb radiometric age of 1171±5 Ma has been obtained from zircons from a pegmatite in the Nunarsuit (previously spelt Nunarssuit) complex, Gardar Province, South Greenland. This age is slightly older than a corresponding Rb-Sr isochron determination. Since Nunarsuit is believed to be among the youngest Gardar centres, this radiometric age date more closely delimits the end of magmatism in the Gardar rift province. A comparison of our data with other published isotopic work may suggest that Gardar magmatism was a continuous rather than a punctuated process.
Minor intrusions of peralkaline microsyenite in the Ilímaussaq alkaline complex, South Greenland
Authors: Hansen J. Rose , Sørensen H.
Published: April 2021

The agpaitic part of the Ilímaussaq alkaline complex, South Greenland, is made up of a roof zone, an intermediate zone and a floor zone. Dykes and sills of peralkaline microsyenite intersect the rocks of the roof and floor zones, but do not appear to intersect the lujavritic nepheline syenites which make up the intermediate zone. The microsyenites consist of Na-poor microcline, K-poor albite, aegirine and arfvedsonite which are practically identical to those of the agpaitic nepheline syenites of the complex. Neptunite and pectolite are the commonest minor minerals. The microsyenites are silica-saturated, –oversaturated, or, more rarely, undersaturated. The agpaitic part of the Ilímaussaq complex is considered to have been formed in a closed magma chamber; the lujavrites of the intermediate zone representing residual melts left after the consolidation of the roof and floor zones. That the microsyenite intrusions intersect the roof and floor zones but not the youngest lujavrites lying between these zones presents a geometrical problem which is discussed at some length. It is difficult to explain the microsyenites as products of fractionation or contamination of melts within the agpaitic magma chamber. Furthermore, the microsyenites differ mineralogically and chemically from the abundant microsyenitic dykes of the regional Tugtutôq-Ilímaussaq dyke swarm. It is therefore proposed that they originated in the source region which fed the agpaitic melts of the Ilímaussaq complex and that their emplacement in fractures was accompanied by a loss of volatiles and incompatible elements.
The problematic fossil Mongolitubulus from the Lower Cambrian of Greenland
Authors: Skovsted Christian B. , Peel John S.
Published: April 2021

Spines referred to the problematic phosphatic Small Shelly Fossil Mongolitubulus Missarzhevsky, 1977 are described from the Lower Cambrian of Greenland. The type species, M. squamifer, is reported from the Henson Gletscher Formation of North Greenland, while M. henrikseni sp. nov. is described from the Bastion Formation of North-East Greenland. Co-occurring small plates with broken spine bases suggest that Mongolitubulus henrikseni may have been a bivalved(?) arthropod with a carapace bearing multiple spines, but it is uncertain if this restoration can be extended to the type species.
CULTURAL VALUES AND UNDERSTANDING OF POLITENESS IN BRITISH, RUSSIAN AND PERSIAN LINGUA-CULTURES
Authors: Ларина Т.В. , Камех-Хош Н.
Published: April 2021

Статья посвящена категории вежливости, выступающей регулятором коммуникативного поведения и определяющей выбор стратегий и средств коммуникации в конкретных ситуациях общения. На примере британской, русской и персидской лингвокультур показано, что, будучи универсальной, категория вежливости обладает этнокультурной спецификой, обусловленной различиями в концептуализации и понимании вежливости. Показана зависимость понимания вежливости от типа культуры и культурных ценностей и ее роль в формировании различных стилей коммуникации. Различия в понимании вежливости иллюстрируются дискурсивными практиками взаимодействия студентов и преподавателей. Подчеркивается, что знание того, как понимают вежливость представители различных культур и какого поведения они ожидают от преподавателя, является важной составляющей социокультурной и коммуникативной компетенции, необходимой для создания комфортной обстановки в мультикультурном классе.

The article examines the category of politeness, which regulates communicative behavior and determines the choice of strategies and means of communication in specific situations. Through examples from British, Russian and Persian lingua-cultures, the article attempts to show that, though universal, politeness has culture specific features due to differences in conceptualization and understanding of the notion of politeness. The article highlights that understanding of politeness is shaped by the type of culture and cultural values which play their role in the formation of various styles of communication. Differences in the understanding of politeness have been illustrated by the discursive practices of interaction between students and teachers. We emphasize that it is important to know how representatives of a particular culture understand politeness and what kind of behavior they expect from a teacher. This is an important component of socio-cultural and communicative competence, necessary to create a comfortable environment for communication in a multicultural classroom in particular, and in all situations of intercultural interaction in general.
THE SEMANTIC FIELD SEEMINGNESS IN THE RUSSIAN-BULGARIAN THEMATIC CLASSIFIER: PRINCIPLES OF DESCRIBING DIALOGICAL RESPONSES WITH A COMPONENT HOPE
Authors: Брагина Н.Г. , Войславова С.С.
Published: April 2021

В статье обсуждаются принципы построения русско-болгарского тематического классификатора, двуязычного словаря близкородственных лингвокультур на примере диалогических ответных реплик с опорным компонентом надеяться/надявам се.

The article discusses the principles of constructing a Russian-Bulgarian thematic classifier, a bilingual dictionary of closely related linguocultures using the example of dialogical responses with a supporting component hope.
Managing digital transformation of language education: challenges, models, solutions
Authors: Маев И.А. , Рублева Е.В. , Хехтель А.С.
Published: April 2021

Технологическое развитие, переход учебно-педагогической деятельности в онлайн-формат и интеграция цифровых решений в образовательную реальность привели к необходимости системного переосмысления и анализа модели языкового обучения. Наряду с открывшимися уникальными возможностями участники образовательного процесса столкнулись с трудностями, возникшими в силу специфики взаимодействия разных поколений в одном образовательном пространстве. Новая модальность социально-педагогических отношений коснулась и языкового образования: НБИКС-технологии, медиаконвергентность и цифровая реальность – явления, которые невозможно игнорировать при конструировании образовательного процесса.

The rapid development of technologies, the transition of educational and pedagogical activities to the online format and the integration of digital solutions into educational reality have led to the need for a systematic rethinking and analysis of the model of the language learning process. Along with the unique opportunities that opened up, participants of the educational process faced difficulties that arose, inter alia, due to the specificity of the interaction of different generations in one educational space. The new modality of socio-pedagogical relations also affected the language education: NBICS technologies, media convergence and digital reality are phenomena that cannot be ignored when designing the educational process.
THE FIRST ALL-INDIA ONLINE OLYMPIAD ON RUSSIAN LANGUAGE: EXPERIENCE OF ORGANIZING AND CONDUCTING THE OLYMPIAD
Authors: Кулибина Н.В. , Битехтина Н.Б. , Виноградова Н.В. , Климова В.Н. , Яскевич М.И. , Бхатнагар М.
Published: April 2021

В статье рассматриваются итоги организации и проведения Первой всеиндийской онлайн-олимпиады по русскому языку: тематика и типы заданий отборочного этапа и финала для индийских студентов (А2), магистрантов (В2) и преподавателей вузов Индии (С1); анализируются типичные трудности и ошибки, допущенные участниками онлайн-олимпиады.

The article discusses how the First All-India Online Olympiad on Russian Language was organized and conducted. It discusses the types of questions and topics covered by these questions, which were included in the qualifying and final rounds for Indian students (A2), post graduates and research scholars (B2) and teachers of Indian universities (C1). The article also analyzes some of the mistakes made by the participants of the Online Olympiad.
FEATURES OF PREPARATION FOR THE WRITTEN PART OF THE A LEVEL RUSSIAN LANGUAGE EXAM
Authors: Завер Т.В.
Published: April 2021

Статья посвящена особенностям подготовки к экзамену A Level по русскому языку. Основываясь на опыте педагогической деятельности, автор выделяет типичные неречевые и речевые ошибки, встречающиеся при написании экзаменационного эссе, а также приводит пример сочинения, в котором допущены некоторые из указанных ошибок. В статье подчеркивается важность подготовительной работы по снятию лексико-грамматических трудностей, объяснению структуры сочинения, составлению словаря текстов и разъяснению исторических и культурных реалий произведения. Автор предлагает ряд упражнений, позволяющих ученикам избежать морфологических, лексических и синтаксических ошибок на экзамене по русскому языку.

The article is devoted to the peculiarities of preparing students for the Russian A Level language exam. Based on the experience of teaching, the author identifies typical non-speech and speech errors that occur when writing an exam essay and also gives an example of a composition in which some of these errors are made. The article emphasizes the importance of preparatory work to remove lexical and grammatical difficulties, explain the structure of the composition, compile a dictionary of texts, and explain the historical and cultural realities of the work. The author offers a number of exercises that allow students to avoid morphological, lexical, and syntactic errors in the Russian language exam.
Pelatihan Pengembangan Kurikulum Taman Pendidikan Al-Qur’an (TPQ) pada Materi Baca Tulis Al-Qur’an dan Fikih Ibadah di Batam dan Tanjungpinang
Authors: Saepuddin Saepuddin , Zamhari M.
Published: April 2021

Keberadaan TPQ sangat dibutuhkan oleh orang tua sebagai tempat anak-anaknya belajar baca tulis Al-Qur’an dan dasar-dasar ilmu agama sebagai pondasi utama dalam kehidupan seorang muslim. Dalam perjalanannya, proses pendidikan yang ada di TPQ saat  ini belum memiliki kurikulum baik. Karena itu perlu diberikan pelatihan pengembangan kurikulum terutama pada materi baca tulis Al-Qur’an dan fikih ibadah agar mutu pendidikan TPQ semakin meningkat. Kegiatan ini bertujuan untuk memberi pemahaman dan pelatihan dalam pengembangan kurikulum baca tulis Al-Qur’an dan fikih ibadah di TPQ di kecamatan Bengkong Kota Batam dan kecamatan Tanjungpinang Timur Kota Tanjungpinang. Pelaksanaan pelatihan pengembangan kurikulum TPQ pada materi baca tulis al-Qur’an dan fikih ibadah telah berjalan dengan baik. Para peserta mengikutinya dengan antusias. Hasil pelatihan yang didapat antara lain, yakni (1) peserta menyadari pentingnya pembuatan dan pengembangan kurikulum TPQ; (2) peserta juga dapat membuat kurikulum TPQ dan mengembangkan komponen kurikulum TPQ sesuai kondisi dan karaktristik TPQ masing-masing; (3) peserta dapat menerapkan metode At-Tashil dalam pembelajaran baca Al-Qur’an dengan baik. Kekurangan dari kegiatan ini ialah waktu pelaksaan yang terbatas sehingga disarankan untuk dilakukan pelatihan kurikulum berkelanjutan agar TPQ mampu mendidik anak-anak lebih baik sesuai dengan target capaiannya
Pendampingan Pengelolaan Badan Usaha Milik Desa Maju Jaya di Desa Rasau Jaya Tiga Kecamatan Rasau Jaya Kabupaten Kubu Raya
Authors: Widyastuti Reni Dwi , Risal Risal , Sari Wilda
Published: April 2021

Pembentukan BUMDes Maju Jaya Desa Rasau Jaya Tiga sebagai bentuk dari upaya pemerintah desa dalam meningkatkan pendapatan asli desa serta meningkatkan taraf hidup warga Desa Rasau Jaya Tiga. Namun demikian tanpa pengelolaan yang baik dan dukungan pemerintah serta masyarakat harapan untuk menjadikan BUMDes Maju Jaya sebagai lokomotif perekonomian desa dapat tidak terwujud. Pada sisi lain, keberlangsungan BUMDes Maju Jaya  Desa Rasau Jaya Tiga sebagai infant organisasi akan sangat ditentukan bagaimana BUMDes  Maju Jaya diharapkan dapat melewati tahun pertama berdirinya BUMDes Maju Jaya yang merupakan tahapan paling kritis dengan tingkat kegagalan tertinggi dalam siklus hidup organisasi. Fenomena ini disebut liability of newness, kegagalan yang tinggi bagi organisasi baru disebabkan belum ada struktur formal dalam proses menghasilkan nilai tambah serta adanya sistem prosedur kerja baku dan pasti. Tujuan kegiatan ini adalah memberikan program pendampingan pengelolaan BUMDes Maju Jaya dengan menekankan pada profesionalisme dalam pengelolaan. Metode pelaksanaan dilakukan dengan metode pendampingan yaitu PAR. Melalui pendekatan ini seluruh elemen BUMDes Maju Jaya dapat dilibatkan secara aktif selama proses pendampingan. Hasil yang diperoleh dalam kegiatan ini adalah (1) Pengelolaan aset BUMDes Maju Jaya meliputi: pendataan dan pencatatan daftar aset yang dimiliki oleh BUMDes Maju Jaya, keterbatasan dalam penyediaan dan mendapatkan modal, komitmen dalam pembagian hasil tiap unit usaha, serta tanggungjawab pajak bagi BUMDes Maju Jaya. (2) Pengelolaan Sumber Daya Manusia BUMDes Maju Jaya meliputi: jam operasional BUMDes dan penyusunan jobdesk dari masing-masing bagian.
COMPARATIVE ANALYSIS OF STATIC AND DYNAMIC MOE OF PANNÓNIA POPLAR TIMBER FROM DIFFERENT PLANTATIONS
Authors: Kánnár Antal , Csiha Csilla
Published: April 2021

The aim of this study has been to investigate the suitability of Pannónia poplar
(Populus × euramericana cv. Pannónia) timber for structural purposes. Static and dynamic modulus of elasticity (MOE) has been determined on samples of 4 different Hungarian plantation origins. The results of the dynamic test showed the same range as the static test, showing a good correlation of the two measurements. As result it can be stated that the domestic Hungarian Pannónia poplar species have in average 11000 N.mm-2 modulus of elasticity. This exceeds considerably the threshold limit value (7000 N.mm-2) necessary for structural applications according to Eurocode 5. Therefore Pannonia poplar is suitable for structural applications, and are a good alternative of the widely used coniferous species in construction sector.
ELIMINATION OF ADHESIVE IMPURITIES OF THE RECOVERED PAPER IN FLOTATION PROCESS
Authors: Kuňa Vladimír , Balberčák Jozef , Boháček Štefan , Ihnát Vladimír
Published: April 2021

The article presents results of the elimination of sticky impurities from recovered paper
in laboratory flotation of three pulp suspensions with different whiteness, obtained directly from the production line before entering flotation. A combination of commercial agents releasing undesirable substances from recovered paper and means for regulation and stabilization of froth and modified micronized bentonit was used. In the flotation purification of pulp suspension with a whiteness of 53%, the combination of Prodeink Extra, Prodeink AS10 and Hydrocol OT reduced the macrostickies content by 58%, the ash content decreased from 18.5% to 4.5%, the whiteness increased from 53% to 56.4% and the residual color content was reduced from 385 ppm to 294 ppm. The pulp suspension with a whiteness of 64% showed a reduction in the content of macrostickies by 66%, a reduction in the ash content by 23.2%, an increase in whiteness by 1.4% and a reduction in the residual color content from 245 ppm to 194 ppm. The pulp suspension with a whiteness of 68.3% showed a decrease in the content of macrostickies by 58.1%, the ash content decreased from 35.7% to 6.3%, the whiteness increased by 1.1% and the content of residual color decreased from 157 ppm to 117 ppm.
INFLUENCE OF KRAFT LIGNIN ON THE PROPERTIES OF RUBBER COMPOSITES
Authors: Makhalema Matshidiso , Hlangothi Percy , Motloung Setumo Victor , Koao Lehlohonolo Fortune , Motaung Tshwafo Elias
Published: April 2021

The influence of lignin content on reclaimed rubber (RR)/natural rubber (NR) blend composite properties has successfully been studied. Scanning electron microscopy (SEM) were used to understand morphology. Fourier-transform infrared spectroscopy (FTIR) for the possible chemical interaction, whereas thermogravimetric analysis (TGA) and tensile tester were used
to predict strength and elongation for possible practical applications. The results indicated that the presence of lignin forms cavities which seemed to arise from complex interactions of the blend with the lignin. Those cavities dominated tensile fractured surface and the increase in lignin indicated inconsistencies of interfacial interactions. Lignin RR/NR blend composites revealed a drop in tensile strength and shift in glass transition temperature, except for the highest lignin containing blend composite. More active interactive constituent of the blend appeared to be NR. The interaction has not favored the thermal stability and crosslinking density.
INTERNAL CAUSE ANALYSIS OF DAMAGE OF WOODEN COMPONENTS IN DANXIA TEMPLE ANCIENT ARCHITECTURES: TREE SPECIES
Authors: Yang Yan , Sun He , Yang Shuang , Wang Aifeng , Zhao Rui , Wang Wei , He Yiming , Li Bin , Zhang Binxin , Wu Qian
Published: April 2021

In the study, part of degraded wooden components of Danxia Temple ancient architectures in China were indentified through the bright field microscope, and chemical compositions in cell walls were observed using polarized and fluorescence lights, respectively. The results showed that samples were belonged to Quercus spp., Ulmus spp., Salix spp., and Populus spp., respectively. Cellulose composition in Quercus spp. was seriously consumed by brown decay fungi, cellulose and lignin compositions in Ulmus spp. were consumed by white decay fungi under polarized and fluorescence light observations. All of these four kind of tree species themselves were easily vulnerable to be attacked by insects.
Suspicious behavior recognition using deep learning
Authors: Park Yeonji , Jeong Yoojin , Sohn Chaebong
Published: April 2021

The purpose of this study is to reinforce the defense and security system by recognizing the behaviors of suspicious person both inside and outside the military using deep learning. Surveillance cameras help detect criminals and people who are acting unusual. However, it is inefficient in that the administrator must monitor all the images transmitted from the camera. It incurs a large cost and is vulnerable to human error. Therefore, in this study, we propose a method to find a person who should be watched carefully only with surveillance camera images. For this purpose, the video data of doubtful behaviors were collected. In addition, after applying a algorithm that generalizes different heights and motions for each person in the input images, we trained through a model combining CNN, bidirectional LSTM, and DNN. As a result, the accuracy of the behavior recognition of suspicious behaviors was improved. Therefore, if deep learning is applied to existing surveillance cameras, it is expected that it will be possible to find the dubious person efficiently.
Tumbling Dice: Radio Constraints on the Presence of Circumstellar Shells around Type Ia Supernovae with Impact Near Maximum Light
Authors: Harris Chelsea E. , Chomiuk Laura , Nugent Peter. E.
Published: April 2021

The progenitors of Type Ia supernovae (SNe Ia) are debated, particularly the evolutionary state of the binary companion that donates mass to the exploding carbon–oxygen white dwarf. In our previous work, we presented hydrodynamic models and optically thin radio synchrotron light curves of SNe Ia interacting with detached, confined shells of CSM, representing CSM shaped by novae. In this work, we extend these light curves to the optically thick regime, considering both synchrotron self-absorption and free–free absorption. We obtain simple formulae to describe the evolution of optical depth seen in the simulations, allowing optically thick light curves to be approximated for arbitrary shell properties. We then demonstrate the use of this tool by interpreting published radio data. First, we consider the nondetection of PTF11kx—an SN Ia known to have a detached, confined shell—and we find that the nondetection is consistent with current models for its CSM, and that observations at a later time would have been useful for this event. Second, we statistically analyze an ensemble of radio nondetections for SNe Ia with no signatures of interaction. We find that shells with masses (10−4–0.3) M
⊙ located (1015–1016) cm from the progenitor are currently not well constrained by radio datasets, due to their dim, rapidly evolving light curves.
On the Detectability of Ultracompact Binary Pulsar Systems
Authors: Pol Nihan , McLaughlin Maura , Lorimer Duncan R. , Garver-Daniels Nathan
Published: April 2021

Using neural networks, we integrate the ability to account for Doppler smearing due to a pulsar’s orbital motion with the pulsar population synthesis package psrpoppy to develop accurate modeling of the observed binary pulsar population. As a first application, we show that binary neutron star systems where the two components have highly unequal mass are, on average, easier to detect than systems that are symmetric in mass. We then investigate the population of ultracompact (1.5 minutes ≤ P
b ≤ 15 minutes) neutron star–white dwarf (NS–WD) and double neutron star (DNS) systems, which are promising sources for the Laser Interferometer Space Antenna gravitational-wave detector. Given the nondetection of these systems in radio surveys thus far, we estimate a 95% confidence upper limit of ∼1450 and ∼1100 ultracompact NS–WD and DNS systems in the Milky Way that are beaming toward the Earth, respectively. We also show that using survey integration times in the range 20 s–200 s with time-domain resampling will maximize the signal-to-noise ratio as well as the probability of detection of these ultracompact binary systems. Among all the large-scale radio pulsar surveys, those that are currently being carried out using archival data collected with the Arecibo radio telescope have a ∼50%–80% chance of detecting at least one of these systems using current integration integration times and ∼80%–95% using optimal integration times in the next several years.
The Evaporating Primordial Black Hole Fraction in Cool-core Galaxy Clusters
Authors: Lee Chak Man , Chan Man Ho
Published: April 2021

Recent studies of gamma-ray, cosmic-ray, and radio data put stringent constraints on the fraction of primordial black holes (PBHs) in our universe. In this article, we propose a new indirect method in using the X-ray luminosity data of cool-core clusters to constrain the evaporating PBH fraction for the monochromatic, log-normal and power-law mass distributions. The present results show that the amount of evaporating PBHs only constitutes a minor component of dark matter for a large parameter space. The constraints are consistent with and close to that obtained from other cosmic-ray and multiwavelength observations.
A Real-time View of Orbital Evolution in HM Cancri
Authors: Strohmayer Tod E.
Published: April 2021

HM Cancri is a double degenerate binary with the shortest orbital period presently known. The 5.36 minute period is seen as a large amplitude, soft X-ray modulation, likely resulting from a hot spot produced by direct impact accretion. With such a short orbital period it is expected to have a gravitational wave luminosity comparable to or larger than that in the X-ray, and its orbital frequency is known to be increasing at a rate consistent with the expected loss of angular momentum due to gravitational radiation. We use recent Neutron Star Interior Composition Explorer observations to extend its long-term X-ray timing baseline to almost 20 yr. Phase coherent timing of these new data combined with existing Chandra data demonstrates conclusively that the rate of orbital frequency increase is slowing, and we measure a nonzero

Hz s−2, which is to our knowledge the first such measurement of its kind for any compact astrophysical binary. With the simultaneous high precision measurement of

Hz s−1, we estimate that the system will reach its maximum orbital frequency of

mHz in 1260 ± 200 yr, indicating that the system is close to its epoch of maximum orbital frequency. Assuming mass transfer is conservative, the measurement of

implies that the accretion rate from the donor is growing, with

M
⊙ yr−2. Further quantitative comparisons with theoretical models should enable more precise inferences regarding its current evolutionary state.
The α
ox–He ii EW Connection in Radio-loud Quasars
Authors: Timlin John , Zhu Shifu , Brandt W. N. , Laor Ari
Published: April 2021

Radio-loud quasars (RLQs) are known to produce excess X-ray emission, compared to radio-quiet quasars (RQQs) of the same luminosity, commonly attributed to jet-related emission. Recently, we found that the  He ii EW and α
ox in RQQs are strongly correlated, which suggests that their extreme-ultraviolet (EUV) and X-ray emission mechanisms are tightly related. Using 48 RLQs, we show that steep-spectrum radio quasars (SSRQs) and low radio-luminosity (

L

R

) flat-spectrum radio quasars (FSRQs) follow the

α

ox

– He ii EW relation of RQQs. This suggests that the X-ray and EUV emission mechanisms in these types of RLQs is the same as in RQQs, and is not jet related. High-

L

R

FSRQs show excess X-ray emission given their  He ii EW by a factor of ≈3.5, which suggests that only in this type of RLQ is the X-ray production likely jet related.
Distribución espacial de Vanilla bahiana (Orchidaceae) en dos fitofisonomías de restinga. ¿El patrón espacial varía?
Authors: Fajardo Villela Antolin Barberena Felipe , López Hermoso Estíbaliz , José de Oliveira Maria Aparecida
Published: April 2021

Vanilla bahiana es una orquídea hemiepífita restringida a Brasil, extremadamente ornamental, amenazada de extinción y con potencial económico. Se evaluó el patrón de distribución espacial de V. bahiana en las fitofisionomías arbustiva y de bosque en un fragmento de llanuras costeras (restinga), en una unidad de conservación en el Noreste de Brasil. Para ello, se utilizó el índice de Morisita, el índice de Morisita estandarizado y el método TTLQV, y se muestrearon 1920 m2, a través de la demarcación de seis transectos de 40 × 4 m por fitofisionomía. Cada transecto se subdividió en 10 parcelas de 4 × 4 m. En la formación arbustiva, se observaron 49 individuos of V. bahiana y mayor abundancia en los bordes de los transectos (parcelas 1 y 2). En el bosque de restinga se contaron 47 individuos of V. bahiana, pero distribuidos de manera más homogéna en los transectos. Se encontró un patrón agregado para la especie en la formación arbustiva y un patrón aleatorio en el bosque de restinga. Los diferentes patrones podrían explicarse por las diferencias de luminosidad, pero también podrían estar asociados con la dispersión de semillas o la presencia de hongos de diferentes especies. Futuros estudios con distribución espacial de Orchidaceae deberían ser pluridisciplinares con la finalidad de investigar las causas principales de los patrones en escalas locales. Específicamente, comprender las relaciones entre especies de Vanilla y los hongos micorrícicos puede generar impactos positivos sobre el cultivo y la comercialización de vainilla.
Les églises basilicales protobyzantines à chevet tripartite et absides saillantes en Phénicie maritime et libanaise
Authors: Garreau Sophie
Published: April 2021

Parmi les basiliques de Phénicie maritime et libanaise, peu présentent un chevet à trois absides saillantes. On citera Chhîm et Khirbet Yarun en Phénicie maritime. D’autres églises, comme Khaldé Choueifat ou Nahariya, ont un chevet atypique. Dans l’église de pèlerinage de Khan Khaldé, où la circulation des pèlerins est avérée, le chevet est également irrégulier. Ces basiliques, fruits de l’évergétisme local pour leur construction et leur décor, ont souvent dû s’adapter à la topographie et pour certaines à un monument romain sacré préexistant.
Human Blood Plasma Shapes Distinct Neonatal TLR-Mediated Dendritic Cell Activation via Expression of the MicroRNA Let-7g
Authors: England Ross , Pak Jensen , Liu Mark , Rao Shun , Ozonoff Al , Levy Ofer , van Haren Simon D
Published: April 2021

The newborn innate immune system is characterized as functionally distinct, resulting in impaired proinflammatory responses to many stimuli and a bias toward Th2 development. Although the magnitude of impairment can be partially overcome, for instance through activation of TLR7/8 in newborn dendritic cells, the newborn innate response remains distinct from that of adults. Using human in vitro modeling of newborn and adult dendritic cells, we investigated the role of extracellular and intracellular regulators in driving age-specific responses to TLR7/8 stimulation. MicroRNA expression profiling and plasma switch experiments identified Let-7g as a novel regulator of newborn innate immunity. Activation-induced expression of Let-7g in monocyte-derived dendritic cells (MoDCs) is driven by newborn plasma and reduces expression of costimulatory receptors CD86, MHC class I, and CCR7 and secretion of IFN-α and sCD40L. Conversely, an increase in secretion of the Th2-polarizing cytokine IL-12p40 is observed. Overexpression of Let-7g in adult MoDCs resulted in the same observations. Small interfering RNA–mediated ablation of Let-7g levels in newborn MoDCs resulted in an adult-like phenotype. In conclusion, this study reveals for the first time (to our knowledge) that age-specific differences in human plasma induce the microRNA Let-7g as a key mediator of the newborn innate immune phenotype. These observations shed new light on the mechanisms of immune ontogeny and may inform approaches to discover age-specific immunomodulators, such as adjuvants.
Itk Promotes the Integration of TCR and CD28 Costimulation through Its Direct Substrates SLP-76 and Gads
Authors: Hallumi Enas , Shalah Rose , Lo Wan-Lin , Corso Jasmin , Oz Ilana , Beach Dvora , Wittman Samuel , Isenberg Amy , Sela Meirav , Urlaub Henning , Weiss Arthur , Yablonski Deborah
Published: April 2021

The costimulatory receptor CD28 synergizes with the TCR to promote IL-2 production, cell survival, and proliferation; yet the obligatory interdependence of TCR and CD28 signaling is not well understood. Upon TCR stimulation, Gads, a Grb2-family adaptor, bridges the interaction of two additional adaptors, LAT and SLP-76, to form a TCR-induced effector signaling complex. SLP-76 binds the Tec-family tyrosine kinase, Itk, which phosphorylates SLP-76 Y173 and PLC-γ1 Y783. In this study, we identified TCR-inducible, Itk-mediated phosphorylation of Gads Y45 in a human T cell line and in mouse primary T cells. Y45 is found within the N-terminal SH3 domain of Gads, an evolutionarily conserved domain with no known signaling function. Gads Y45 phosphorylation depended on the interaction of Gads with SLP-76 and on the dimerization-dependent binding of Gads to phospho-LAT. We provide evidence that Itk acts through SLP-76 and Gads to promote the TCR/CD28–induced activation of the RE/AP transcriptional element from the IL-2 promoter. Two Itk-related features of SLP-76, Y173 and a proline-rich Itk SH3 binding motif on SLP-76, were dispensable for activation of NFAT but selectively required for the TCR/CD28–induced increase in cytoplasmic and nuclear c-Rel and consequent RE/AP activation. We provide evidence that unphosphorylated, monomeric Gads mediates an RE/AP–directed inhibitory activity that is mitigated upon Gads dimerization and Y45 phosphorylation. This study illuminates a new, to our knowledge, regulatory module, in which TCR-induced, Itk-mediated phosphorylation sites on SLP-76 and Gads control the transcriptional response to TCR/CD28 costimulation, thus enforcing the obligatory interdependence of the TCR and CD28 signaling pathways.
Cutting Edge: mTORC1 Inhibition in Metastatic Breast Cancer Patients Negatively Affects Peripheral NK Cell Maturation and Number
Authors: Besson Laurie , Mery Benoite , Morelle Magali , Rocca Yamila , Heudel Pierre Etienne , You Benoit , Bachelot Thomas , Ray-Coquard Isabelle , Villard Marine , Charrier Emily , Parant François , Viel Sébastien , Garin Gwenaële , Mayet Romaine , Perol David , Walzer Thierry , Tredan Olivier , Marçais Antoine
Published: April 2021

NK cells are cytotoxic lymphocytes displaying strong antimetastatic activity. Mouse models and in vitro studies suggest a prominent role of the mechanistic target of rapamycin (mTOR) kinase in the control of NK cell homeostasis and antitumor functions. However, mTOR inhibitors are used as chemotherapies in several cancer settings. The impact of such treatments on patients’ NK cells is unknown. We thus performed immunophenotyping of circulating NK cells from metastatic breast cancer patients treated with the mTOR inhibitor everolimus over a three-month period. Everolimus treatment resulted in inhibition of mTORC1 activity in peripheral NK cells, whereas mTORC2 activity was preserved. NK cell homeostasis was profoundly altered with a contraction of the NK cell pool and an overall decrease in their maturation. Phenotype and function of the remaining NK cell population was less affected. This is, to our knowledge, the first in vivo characterization of the role of mTOR in human NK cells.
О завихренных волнах предельной амплитуды
Authors: Kozlov Vladimir Arkad'evich , Lokharu E E
Published: April 2021

В работе рассматриваются недавние результаты о волнах предельной амплитуды. Мы обсуждаем вопросы, связанные с гладкостью решений, а также асимптотическое поведение профиля волны в окрестности точки стагнации. Выясняется, что при отрицательной завихренности на поверхности жидкости профиль волны оказывается вогнутым.
Window design selection and energy consumption implications for residential buildings in Ghana: A behavior-change analysis of Ga East and Awutu Senya East Municipalities
Authors: Bawakyillenuo Simon , Agbelie Innocent Sefadzi Komla
Published: April 2021

The challenge of reducing carbon emissions for the purpose of climate change mitigation requires both supply-side and demand-side energy efficiency measures. On the demand side, buildings worldwide account for about 30-40% of the total energy demand, thereby forming the largest sectoral consumer of electricity. Hence, the building sector offers a great opportunity for energy conservation and efficiency drives if certain behavioural patterns were to change. An important element of the building, which often influences energy consumption, is the design of the window. This paper investigates the economic, energy efficiency and sociological dimensions of the shift from traditional window designs to alternative ones in Ghana. Through quantitative and qualitative analyses of the data gathered for the 2014 Energy Surveys in the Ga East and Awutu Senya East Municipalities in Ghana, most homeowners use new window designs predominantly for aesthetic reasons. While more wooden and louvre blades windows users depend heavily on natural ventilation systems, glazed windows users depend mostly on fans and air conditioners. Consequently, glazed windows users spend more money on electricity compared to users of other window types. These findings manifest the energy inefficiency of most recent architectural designs in Ghana and, therefore call for appropriate policy interventions.