bluuebunny/crossref_metadata_2025_split huggingface dataset:
RESTRIÇÃO ALIMENTAR: DIFERENÇAS ENTRE PERTENCER OU NÃO A CURSOS DA SAÚDE E AS VIVÊNCIAS DURANTE A PANDEMIA DA COVID-19
Authors: Amaro Rolfsen Ana Laura , Sumico de Lima Uyeno Jordão Karyne , Moraes César 
Published: October 2023

O conjunto de características que diferencia pessoas que praticam maior restrição alimentar e vivenciam repercussões prejudiciais à saúde em função da prática, demanda maior elucidação. Conhecer essas características em resposta a situações de estresse extremo como o que ocorrera na pandemia da COVID-19 é aspecto pertinente visto que conhecer a influências destas situações sobre o comportamento alimentar pode auxiliar na construção de habilidades para melhorar a alimentação da população. Neste contexto, o presente estudo teve por objetivo investigar a relação entre características de universitárias e vivências na pandemia sobre os componentes da restrição alimentar: descontrole alimentar, restrição cognitiva e comer emocional. Para isso, foi realizado um desenho transversal com utilização de survey online, com obtenção de respostas de noventa e três mulheres universitárias ao Three Factor Eating Questionnaire com 21 itens (TFEQ-21), questionário que mede a restrição alimentar segundo os fatores descontrole alimentar, restrição cognitiva e comer emocional. Os resultados foram comparados a “pertencer ou não à área da saúde”, “perceber ou não impactos na saúde física e emocional na pandemia”, “perceber ou não mudanças no corpo na pandemia”, Índice de Massa Corporal e dados sociodemográficos. Os dados foram analisados por análise de variâncias com covariável (ANCOVA) e correlação de pearson. Não houve diferença significativa entre pertencer ou não a área da saúde (descontrole alimentar: F=0,60, p=0,44; restrição cognitiva: F=1,31, p=0,25; comer emocional: F=0,37, p=0,56) ou perceber os impactos físicos e mentais (descontrole alimentar: F=0,14, p=0,7; restrição cognitiva: F=1,79 p=0,18; comer emocional: F=2,66, p=0,11) sobre as variáveis de interesse. Mas houve maior pontuação significativa para restrição cognitiva entre aqueles que perceberam mudanças positivas no corpo durante a pandemia em relação aos que não perceberam (F=3,84, p=0,025). A maior pontuação de restrição cognitiva entre os que relacionaram mudanças positivas no corpo pode se relacionar ao maior grau de rigidez que profissionais da saúde (boa parte da amostra) comumente se impõe em relação a alimentação e forma corporal, o que pode ter se agravado na pandemia. Essa rigidez merece observação já que pode se relacionar com repercussões negativas para a saúde.
Formulasi dan Evaluasi Hidrogel Mukoadhesif Metronidazole Menggunakan Kombinasi Kitosan dan Natrium Karboksimetilselulosa
Authors: Fahrurroji Andhi , Wijianto Bambang , Styawan Agus 
Published: October 2023

Antibiotik metronidazole merupakan suatu antibiotik yang sering digunakan pada pengobatan infeksi, salah satu penggunaannya adalah dalam pengobati infeksi Helicobacter pylori. Antibiotik ini memiliki kelarutan yang relatif tinggi pada kondisi asam yaitu 30,6 mg/mL pada pH 1, sebagai upaya untuk mengoptimalkan kelarutan tersebut maka dilakukan pengembangan sediaan yang bertahan lama pada kondisi lambung sediaan tersebut adalah dalam bentuk hidrogel mukoadhesif yang dapat mempertahankan waktu tinggal di lambung lebih lama sehingga terapi infeksi H.pylori lebih optimal. Tujuan dari penelitian ini adalah melihat pengaruh penggunaan kombinasi polimer kitosan dan natrium karboksimetilselulosa yang dapat mengontrol pelepasan metronidazole secara in vitro dalam sediaan hidrogel. Metode yang digunakan untuk memprediksi formula tersebut adalah menggunakan desain faktorial yang selanjutnya diambil formula optimumnya. Rancangan formula awal untuk memprediksi formula optimum terdiri dari 4 formula dengan perbandingan polimer kitosan dan natrium karboksimetilselulosa berturut-turut 0,5:1,5; 1,0:1,5; 0,5:3,0; dan 1,0:3,0. Hasil pengamatan menunjukkan formula optimum dengan perbandingan polimer kitosan dan natrium karboksimetilselulosa sebesar 1,0% (kitosan) dan 3,0% (natrium karboksimetilselulosa), dengan respon untuk kemampuan mengembang sebesar 96,95%; kekuatan mukoadhesif sebesar 0,1911 N/cm2; dengan pelepasan obat sebesar 67,457 % dan mekanisme pelepasan obat mengikuti sistem difusi Fick. Berdasarkan uji independent sampel t-test pada program SPSS 22 menjelaskan bahwa formula hasil observasi tidak berbeda siginifikan dengan hasil prediksi (p-value>0,05).
Dual-Function Cloak of Edge Target in Metamaterial Plate with Active Intelligent Control
Authors: Jiang Jing-Wei , Wang Yi-Ze 
Published: October 2023

Wave invisibility has attracted great attention because of its significant influences on mechanical, acoustic, and many other fields, and it has a great potential application to practical engineering. In this work, a dual-function cloak is proposed in which there is an edge object with an intelligent control system in an elastic wave metamaterial plate. Based on the image and scattering cancellation methods, the scattering mode coefficients are derived. The effects of material and structural parameters on dynamic stress concentration and scattering amplitude are investigated. The cloaking configuration consists of concentric layers of piezoelectric (lead–zirconate–titanate [PZT]) patches, which are connected with the intelligent control system. The theoretical and experiment results show that the dual-function cloak can effectively reduce the dynamic stress concentration and scattering amplitude. Compared to the range from 100 to 450 Hz for the original structure without a control system, the effective frequency range of the intelligent cloak can be extended from 100 to 500 Hz. The present design with both strength enhancement and invisibility of the edge target is expected to provide new ideas for the development of mechanical metamaterials and novel structures.
Vibration and Heat Transfer Study on Elastic-Tube Heat Exchange with Curved Baffle
Authors: Xiwang Qie , Jiadong Ji , Feiyang Li , Xu Deng , Jianxin Zhou 
Published: October 2023

A heat exchanger with a curved baffle for an elastic-tube bundle (ETB) is designed to effectively improve the performance based on a common ETB heat exchanger, and this paper systematically studies its vibration and heat transfer characteristics under different inlet velocity and structural parameters. The results indicate that the ETB vibration characteristics increase significantly with an increasing velocity, and the average amplitude of the ETB at [Formula: see text] is 4.51 times higher than that at [Formula: see text]. Similarly, the heat transfer performance subsequently decreases, but the average heat transfer coefficient of the ETB is significantly increased with the increase of the inlet velocity. When the long axis increases from 45 to 75 mm, the vibration intensity of the ETB decreases sharply, and the [Formula: see text] direction and the total vibration [Formula: see text] decrease by 43.4 and 51.5%, respectively. At the same time, the heat transfer coefficient of the ETB and its growth rate decrease by 3.9 and 45.6%. Additionally, the baffle curvature has little impact on the vibration and heat transfer performance. The difference between the average heat transfer coefficient and the total vibration amplitude of the ETB for different baffle curvatures is less than 5%.
Photodynamic interstitial stereotactic therapy for recurrent malignant glioma
Authors: Rafaelian Artem , Martynov Boris , Chemodakova Kseniia , Martynov Roman , Kholyavin Andrey , Papayan Garry , Svistov Dmitry 
Published: October 2023

Objectives
Stereotactic photodynamic therapy (sPDT) using 5-aminolaevulinic acid (5-ALA) as a cytotoxic photosensitizer may be a potentially prospective treatment option for malignant gliomas.

Material and Methods
We analyzed data from 10 patients with recurrent malignant gliomas of the brain who were treated with sPDT at the Department of Neurosurgery of the Military-Medical Academy S. M. Kirov, from 2020 to November 2021. Three patients were treated with sPDT again after 3, 7, and 15 months due to relapse.

Results
The median age of the patients was 55.5 years, range was 30–60 years, there were six men and four women. At the time of sPDT, 7 (70%) patients with recurrent tumors were diagnosed with glioblastomas (WHO grade IV), and 3 (30%) with anaplastic astrocytomas (WHO grade III). Tumors were without IDH mutation in 7 (70%) patients; MGMT gene expression status was evaluated in tumors in 9 (90%) patients. A 1p/19q co-deletion was not detected in any of the patients. The median tumor volume was 5.85 cm3 (min. 3.2 cm3, max. 22.5 cm3). We have found that the median recurrence-free period after sPDT in patients with anaplastic astrocytomas and glioblastomas was 435 and 195 days, respectively.

Conclusion
This result allows to consider sPDT as one of the perspective methods of treatment of patients with recurrent gliomas of high malignancy in cases when repeated open surgical intervention has high risks of new neurological deficit.
AFRICAN AMPHORAE IN BOSPOROS (KERCH)
Authors: Смокотина А.В. 
Published: October 2023

В ходе археологических исследований в Босфорском переулке г. Керчи в 2007–2009 гг. были выявлены фрагменты африканских амфор, поступавших в г. Боспор непрерывно с первой половины V до первой половины VI вв. Преобладает импорт из двух основных центров (почти 40 %): мастерских на юге провинции Бизацена (Маджура, Унка) (Keay 8B), а также мастерской Сиди Захруни в районе города Набуля в провинции Зевгитана (spatheion 1, Keay 55А, Keay 57В и некоторые другие).
The archaeological excavations in Bosporos Lane in the town of Kerch con ducted in 2007–2009 revealed fragments of African amphorae that were continuously supplied to the town of Bosporus from the first half of the 5th century to the first half of the 6th century. The imported amphorae came from two main centers (almost 40 %), i. e. the workshops in the south of the Byzacena province (Majoura and Iunca) (Keay 8B) and the Sidi Zahruni workshop near the town of Nabeul in the Zeugitana province (spatheion 1, Keay 55А, Keay 57В and some others).
THE BURIAL OF HORSE WARRIOR AT THE SALTOVO-MAYAKI SETTLEMENT OF OTUZY 2 IN SOUTHEASTERN CRIMEA
Authors: Майко В.В. , Набоков А.И. 
Published: October 2023

Изучение погребений на территории салтово-маяцких поселенческих комплексов – одна из интереснейших проблем отечественного хазароведения. До сего дня единичные захоронения, зафиксированные на салтовских поселениях Керченского полуострова, в Подонье и Приазовье, по мнению специалистов, были связаны с ритуальной практикой. В пользу этого свидетельствовали и факты обезвреживания погребенного и повторное проникновение в могилу. В 2021 г. при охранных раскопках поселения Отузы 2 в юго-восточном Крыму было открыто уникальное погребение воина-всадника, которое и стало предметом данной ста тьи. Стратиграфические наблюдения и погребальный инвентарь позволяют датировать погребение не ранее первой половины Х в. Этот инвентарь включает все основные элементы салтовских воинских захоронений. Присутствуют и вещи, уникальные для данной категории могил. Некоторые аналогии погребальному инвентарю известны и в захоронениях печенегов. Несмотря на отдельные общие черты, сам погребальный обряд не имеет аналогов не только на территории Таврики, но и за ее пределами. Это пока единственное воинское погребение в материалах всех изученных поселенческих салтовских памятников полуострова. Не исключено, что это захоронение может стать важным источником для выяснения времени и механизма прекращения функционирования салтово-маяцкой культуры Крыма.
The investigation of burials at the Saltovo-Mayatsk settlement complexes is one of the most interesting aspects of Russian Khazar studies. The experts believe that until recently single graves recorded at the Saltovo settlement on the Kerch peninsula, in the Don region and the Pryazovia region were related to ritual practice. The evidence suggests a deconstruction of the body to separate the world of the living from the world of the dead and protect the living from the buried and re-entering the grave. In 2021 the rescue excavations at Otuzy 2 in southeastern Crimea discovered a unique grave of a horse warrior was discovered which is described in this paper. Methods of comparative archaeological analysis and correlation of grave goods date the burial not before the first half of the 10th century. The funerary offerings include all key elements of the Saltovo warrior graves. They also contain some goods unique for this category of the burials. Some analogues to the funerary gifts are known in the burials of the Pechenegs. Despite some com mon features, the funerary rite has no analogues either in Taurica or outside it. So far, it is the only warrior burial among all investigated Saltovo settlement sites on the peninsula. 166 КСИА. Вып. 271. 2023 г. We cannot rule out that this grave can become an important source for clarifying the time when the Saltovo-Mayatsk culture ceased to exist in Crimea and understanding how it happened.
THE CHRISTIAN TOMBSTONE FROM THE BYZANTINE SITE OF GORZUVITA (SOUTHERN COAST OF CRIMEA)
Authors: Евдокимова А.А. , Мастыкова А.В. , Свойский Ю.М. 
Published: October 2023

Рассматривается фрагмент каменного надгробия с надписью, найденного в 2018 г. на византийском памятнике Горзувиты, расположенного на территории МДц «Артек» (Южный берег Крыма). Благодаря визуальному изучению находки удалось прочитать текст и установить, что это христианское надгробие. Для получения более надежного прочтения надписи была построена трехмерная полигональная модель фрагмента надгробия с применением алгоритма визуализации геометрии поверхности, использование которого дало возможность скорректировать первоначальное чтение. Совокупность полученных палеографических, археологических и лингвистических данных позволила прочитать поминальную надпись «[Κ(ύρι)ε или (Ι(ησου)ς Χ(ριστο)ς), ἀ]νάπ[αυσον τὸν] δο[ῦλον σοῦ/ τοῦ Θεοῦ/ Χριστοῦ]» – «[Гос поди], помяни раба [Божьего (имя покойного)]» и отнести ее к VI–VII вв.
The paper examines a fragment of an inscribed tombstone found at the Byz antine site of Gorzuvita located in the Artek international children’s center (Southern Coast 197 А. А. Евдокимов а и др. of Crimea) in 2018. By visual examination of the find, the inscription was read and the tombstone was identified as Christian. To ensure a more reliable interpretation of the inscription, a polygonal 3D model of the tombstone fragment was developed employing a geometry-based visualization of the surface which made it possible to correct the initial reading. Based on the dataset of the collected paleogeographical, archaeological and linguistic data, the epitaph on the tombstone was read as “[Κ(ύρι)ε or (Ι(ησου)ς Χ(ριστο)ς), ἀ]νάπ[αυσον τὸν] δο[ῦλον σοῦ / τοῦ Θεοῦ / Χριστοῦ]” which means “[Our Lord], think upon the slave [of God (the name of the deceased)]” and was dated to the 6th– 7 th centuries.
ANALYTICAL METHODS FOR STUDYING THE COMPOSITION OF BRONZE AGE METAL ITEMS: ADVANTAGES AND DISADVANTAGES
Authors: Анкушев М.Н. , Артемьев Д.А. , Блинов И.А. , Рассомахин М.А. , Алаева И.П. , Виноградов Н.Б. 
Published: October 2023

Для получения достоверной информации о составе древних металлических изделий необходим правильный выбор методов пробоотбора и анализа. В статье приводится сравнение результатов изучения состава 3 металлических изделий различными аналитическими методами: оптико-эмиссионный спектральный анализ, РФА, СЭМ-ЭДС и ЛА-ИСП-МС. Методы показали хорошую сходимость результатов при определении макропримесей (Sn, Fe, Sb, Ni) в меди и бронзах. Наиболее близкие результаты при высокой чувствительности получены при помощи спектрального анализа и ЛА-ИСП-МС. С помощью РФА и ЛА-ИСП-МС сравнивается состав патины и металла 8 изделий. В патине бронзовых артефактов содержание Sn и Sb в 2–5 раза выше, чем в металле; As – до 10 раз выше; Fe в патине может как оставаться на уровне долей процента, так и значительно увеличиваться в несколько десятков раз. Высокие концентрации S, а также Se и Te зафиксированы только в металле изделия, в патине содержание S составляет 0,3–0,8 мас. %. Литофильные элементы, такие как Si, Ca, Mg, Al, Mn, P, в металле практически не содержатся, однако в патине их концентрации выше на несколько порядков. Из-за значительных различий в составе патинированные части изделия могут лишь ограниченно использоваться для интерпретаций результатов анализа. Проба металла при отборе для валовых типов анализа (спектральный, ИСП-МС) не должна быть заражена частицами патины.
To obtain reliable information about the composition of ancient metal products, the correct choice of sampling and analysis methods is necessary. The article compares the results of studying the composition of 3 metal items by various analytical methods: optical emission spectral analysis, XRF, SEM-EDS and LA-ICP-MS. The methods 213 М. Н. Анкуш ев и др. showed good convergence of results in the determination of macroimpurities (Sn, Fe, Sb, Ni) in copper and bronze. The closest results at high sensitivity were obtained using spectral analysis and LA-ICP-MS. Using XRF and LA-ICP-MS, the composition of the patina and metal of 8 items is compared. In the patina of bronze artifacts, the content of Sn and Sb is 2–5 times higher than in metal; As – up to 10 times higher; Fe in the patina can either remain at the level of fractions of a percent, or significantly increase by several tens of times. High concentrations of S, as well as Se and Te, were recorded only in the metal of the item; in the patina, the S content is 0,3–0,8 wt %. Lithophilic elements such as Si, Ca, Mg, Al, Mn, P are practically not contained in the metal, however, their concentration in patina is higher by several orders of magnitude. Due to the significant differences in composition, the patinated parts of the item can only be used to a limited extent for interpreting the results of the analysis. The metal sample taken for bulk types of analysis (optical emission spectral, ICP-MS) should not be contaminated with patina particles.
ARCHAEOMETALLURGICAL APPROACHES TO THE STUDY OF COPPER-ARSENIC ALLOYS OF THE BRONZE AGE
Authors: Богданов С.В. 
Published: October 2023

В статье анализируется репрезентативная серия из 109 экспериментов по легированию рафинированной меди минералами мышьяка в натурных условиях и объемах, позволяющих изготовить металлоемкие орудия; литью, отжигу заготовок и их последующей кузнечно-слесарной обработке. Источником мышьяка в экспериментальных медных сплавах служил арсенопирит. Установлено, что медный раствор можно обогатить мышьяковыми лигатурами тремя основными способами: растворение порошка арсенопирита в перегретом расплаве меди путем дразнения (перемешивания) деревянной жердью; совместная тигельная плавка порошка арсенопирита, перекрытого корольками меди и «шубой» из толченого древесного угля; совместная восстановительная плавка минералов меди и арсенопирита. По указанным технологическим схемам можно обогащать растворы меди любыми соединениями мышьяка. Лишь первые два способа позволяют получить сплавы с заданной пропорцией Cu и As, а также средне - и высокомышьяковые соединения. В статье приведены данные приборных замеров фаз плавления экспериментальных образцов мышьяковых сплавов, особенности их физико-химических свойств. Всего изготовлено 17 орудий из низко - и среднемышьяковых (от 1,5 до 5 % As) сплавов, соответствующих типологическим стандартам восточноевропейских культур бронзового века.
The paper analyzes a representative series of 109 experiments on alloying of refined copper with arsenic minerals in full-scale conditions in the amounts sufficient to produce metal-consuming tools, as well as experiments on casting, annealing of blanks, and their subsequent forging and founder work. Arsenopyrite served as a source of arsenic in experimental copper alloys. It was established that the copper solution can be enriched with arsenic ligatures in three main ways: dissolution of arsenopyrite powder in the superheated copper melt by poling (mixing) with a wooden pole; joint crucible melting of arsenopyrite powder overlaid with copper shot and a «coat» of crushed charcoal; joint reduction melting of copper and arsenopyrite minerals. According to these technological schemes, it is possible to enrich copper solutions with any arsenic compounds. Only the first two methods make it possible to obtain alloys with a given proportion of Cu and As, as well as medium - and high-arsenic compounds. This paper presents the data of instrument measurements of the melting phases of experimental samples of arsenic alloys and the features of their physicochemical properties. In total, 17 tools were made from low- and medium-arsenic alloys (from 1,5 to 5 % As) which is consistent with typological standards of East European cultures of the Bronze Age.
X-RAY FLUORESCENCE STUDIES OF THE BRONZE AGE HOARD (NORTH OF THE TARKHANKUT PENINSULA, NORTHWESTERN CRIMEA)
Authors: Смекалова Т.Н. , Антипенко А.В. , Мульд С.А. , Майко Н.Б. 
Published: October 2023

В 2015 г. в северной части п-ова Тарханкут в Северо-Западном Крыму, в 2,3 км к северо-западу от северной окраины с. Владимировка (бывш. Бай-Кият) был найден клад металлических изделий, относящихся к эпохе бронзы. В январе 2023 г. было проведено рентгенофлуоресцентное исследование состава сплава орудий, входящих в этот клад. Почти все предметы, за исключением одного, изготовлены из двухкомпонентной мышьяковой бронзы, с небольшим количеством мышьяка (в среднем 1,78 %). Только стержневидное орудие с раскованной верхней частью и заостренной нижней (долото или стамеска) сделано из тройной мышьяково-никелевой бронзы, в которой содержится 3,1 % мышьяка и 1,56 % никеля. Культурно-типологический анализ предметов из клада в совокупности с интерпретацией данных по составу их сплава позволяет отметить близость найденных предметов к кругу вещей майкопско-новосвободненской общности Северного Кавказа и датировать их ранним бронзовым веком. Исходя из датировки и местонахождения клада, можно предположить его принадлежность к ямной или кемиобинской культурам.
In 2015 a hoard of metal tools dating to the Bronze Age was discovered in the northern part of the Tarkhankut Peninsula 2,3 km northwest of the northern outskirts of the village of Vladimirovka (former Bay-Kiyat). In January 2023, an X-ray fluorescence study of the alloy composition of the tools from the hoard was carried out. Almost all items, with the exception of one tool were made of two-component arsenic bronze with a small amount of arsenic (average 1,78 %). Only a rod-shaped tool with a forged upper part and a pointed lower part (chisel or adze) was made of triple arsenic-nickel bronze containing 3,1 % arsenic and 1,56 % nickel. The cultural and typological analysis of objects from the hoard, along with the interpretation of the data on the composition of their alloy suggests that the found items are close to the artifacts of the Maykop-Novosvobodnaya community from the North Caucasus and can be dated to the Early Bronze Age. Based on the dating and location of the hoard, it can be assumed that it can be attributed to the Yamnaya or Kemi-Oba cultures.