bluuebunny/crossref_metadata_2025 huggingface dataset:
Pemodelan Peak Ground Accleration (PGA) dan Intensitas Gempabumi berdasarkan Pengukuran Mikrotremor pada Kawasan Longsor di Desa Kalongan, Ungaran Timur
Authors: Wibowo Nugroho Budi , Niyartama Thaqibul Fikri , Andi Andi , Septiana Rena , Widianingrum Erlina , Bustari Ahdian Azri , Arif Iktifal Ajie
Published: March 2024

The landslide in Kalongan Village affected an area of 5 hectares and has the potential to experience further landslides. Landslides can occur with triggers of external factors such as earthquakes. The Peak Ground Acceleration (PGA) parameter can represent the impacts that occur on the surface in the form of earthquake intensity (MMI). Kalongan Village is 25.5km from the epicenter of the Ambarawa earthquake on 27 May 2023. This study aims to modeling the PGA microzonation and the intensity of the Ambarawa earthquake in the avalanche zone in Kalongan Village. The PGA model is based on measurements of 72 microtremor data in the avalanche zone using the Kanai method. Parameters of the Ambarawa earthquake with a magnitude of 2.5 and a depth of 5 km. The results of PGA modeling in the avalanche zone varied between 1.0-7.1 gal or I-II MMI values. The results of the PGA modeling show that aftershocks can occur if the strength of the Ambarawa earthquake reaches M=4 or 7.1-50.8 gal. The strength of the earthquake is equivalent to the intensity of II-V MMI.
Flavonoid Alami Hasil Ekstrak Bajakah Tampalah Merah sebagai Antifungi Jamur Malassezia Globosa
Authors: Agustin Annisa Sri Mulya , Suparno Suparno
Published: March 2024

Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi flavonoid ekstrak akar bajakah tampala merah terhadap daya hambat jamur Malassezia globosa dan lama waktunya bertahan. Ekstrak akar bajakah tampala merah dipreparasi dengan metode dekoktasi. Kandungan flavonoid yang terkandung di dalam ekstrak bajakah tampala merah ditentukan dengan metode spektroskopi visible, ukuran partikel ditentukan dengan Particle Size Analyzer (PSA), dan kemampuan daya hambat jamur oleh ekstrak akar bajakah dengan metode Kirby bauer. Selain itu, untuk mengidentifikasi ekstrak akar bajakah tampala merah telah dilakukan pengukuran massa jenis, viskositas, dan indeks bias. Hasilnya menunjukkan bahwa daya hambat (zona bening) meningkat dari (6,9 Â± 1,6) mm hingga (9,5 Â± 1,9) mm dengan peningkatan konsentrasi flavonoid dari 10 ppm hingga 25 ppm. Kemampuan bertahan ekstrak akar bajakah tampala merah dalam menghambat jamur bervariasi dari 30 jam hingga 72 jam.
Ekstraksi dan Karakterisasi Hidroksiapatit (HAp) dari Tulang Ikan Tenggiri (Scomberomorus commersoni) dengan Metode Heat Treatment
Authors: Purba Rodearni Ananda Putri , Restianingsih Tika , Anggraini Rista Mutia , Fendriani Yoza , Deswardani Frastica
Published: March 2024

Telah dilakukan ekstraksi hidroksiapatit (HAp) dari tulang ikan tenggiri (Scomberomorus commersoni) menggunakan metode heat treatment. Penelitian bertujuan melihat pengaruh suhu yangÂ  diberikan kepada sampel terhadap ukuran kristal dan derajat kristalinitas. Heat treatment dilakukan pada suhu 400OC, 600OC dan 800OC masing-masing selama 3 jam terhadap sampel yang telah di preparasi. Hasil analisis XRD menunjukkan adanya puncak Â yang terbentuk pada sudut 2Î¸ 25,950; 31,880; 39,620; 44,410; 46,700; 49,400 untuk suhu 400OC, 31,780; 32,800; 34,610 pada suhu 600OC dan 31,760; 32,210; 32,940; 34,070 pada suhu 800OC yang disesuaikan dengan referensi JCPDS 090432. Pada suhu 400OC, 600OC dan 800OC diperoleh ukuran kristal berturut-turut 12,05 nm, 14,18 nm danÂ  42,55 nm danÂ  derajat kristalinitas bernilai 41,91%, 76,38% dan 87,29%. Spektrum FTIR menunjukkan bahwa, semakin tinggi suhu maka lembah yang terbentuk semakin tajam dan adanya gugus fungsi OH-, dan Â yang merupakan karakteristik dari gugus fungsi HAp, selain itu muncul pula gugus H2O. Karakterisasi SEM menunjukkan morfologi berbentuk bulk.
Pemurnian Minyak Goreng Jelantah Menggunakan Karbon Aktif Tempurung Kelapa dengan Aktivasi Fisika
Authors: Jumiati Ety , Nanda Meutia
Published: March 2024

Minyak goreng merupakan kebutuhan pokok yang diperlukan untuk menggoreng makanan. Dikatakan baik suatu minyak goreng bila minyak goreng berwarna bening kekuningan dan terbuat dari tumbuhan serta hewani yang diolah secara buatan. Penelitian ini bertujuan untuk memurnikan minyak goreng jelantah menggunakan karbon aktif tempurung kelapa dengan aktivasi fisika sebagai adsorben. Hasil penelitian ini memperoleh bau dan rasa normal, warna, normal, nilai kadar air: 0,06% dan nilai ALB: 0,15% yang nilainya tidak melebihi dari standar maksimum yang dipersyaratkan SNI 7709:2019
Sistem Kontrol Kelembaban Tanah dan Penyiraman Otomatis Pada Tanaman Seledri (Apium graveolens L.) Yang Dipengaruhi Oleh Suhu Berbasis Mikrokontroler
Authors: Adhana Ghina Athaya , Rasyid Rahmat
Published: March 2024

A system of soil moisture control and automatic watering has been designed for celery (Apium graveolens L.) which is influenced by temperature and humidity based on a microcontroller. This system functions to water the plants automatically based on the soil moisture that has been set in the program. The system will provide information to the user when the soil moisture is more than 75%. The system consists of a DHT11 sensor as a temperature and humidity detector, a capacitive soil moisture sensor to detect soil moisture, a relay as a mini water pump switch for watering plants, red and green LEDs as indicator lights according to the measurement results of a capacitive soil moisture sensor and LCD. to display temperature, air humidity and soil moisture. The test results show that the tool can function properly, if the soil moisture is <75% the pump will start and the soil moisture â‰¥75 the pump will stop so that watering does not occur. The highest humidity obtained was 83% and the lowest temperature was 23Â°C with the condition that the plants did not look dry, while the highest temperature obtained was 30Â°C and the lowest humidity was 77% with the conditions that the plants looked dry.
Pengaruh Kulit kakao dan Biji kakao Terhadap Uji Fisis Briket Bioarang Menggunakan Perekat Getah Damar
Authors: Azmi Afifah , Sirait Ratni , Jumiati Ety
Published: March 2024

Telah dilakukan pembuatan briket bioarang yang merupakan arang yang terbuat dari aneka macam bahan hayati atau biomassa seperti kayu, ranting dan limbah pertanian, bertujuan untuk mengetahui karakteristik Â dan komposisi yang paling optimal pada pembuatan briket bioarang menggunakan kulit kakao dan biji kakao dengan perekat getah damar. Variasi komposisi kulit kakao dan biji kakao dengan perekat getah damar antara lain sampel A (50%:30%), B (40%:40%) dan C (30%:50%). Parameter uji fisika dan kimia meiliputi: kadar air, kadar abu, nilai kalor, kadar zat teirbang dan kadar karbon. Hasil uji fisika dan kimia brikeit bioarang kulit kakao dan biji kakao dipeiroleih brikeit bioarang yang optimal yaitu pada sampeil B yaitu nilai kadar airnya 7,35%, nilai kadar abu 6,40%, nilai kalor 6028 cal/g nilai kadar zat teirbang 16,20% dan nilai kadar karbon 70,05%. Sampeil brikeit bioarang teilah seisuai SNI No. 01-6235-2000 teintang brikeit arang.
Rancang Bangun Pembangkit Frekuensi Gelombang Ultrasonik Untuk Mengusir Lalat Hijau (Chrysomya megacephala)
Authors: Wahyuni Sri , Wildian Wildian
Published: March 2024

Telah dirancang sebuah pembangkit gelombang frekuensi ultrasonik menggunakan IC NE555 yang berbasis Arduino Uno. Perangkat ini dirancang dengan menggunakan IC NE555 sebagai pembangkit gelombang yang memakai rangkaian osilator. Frekuensi ultrasonik yang dihasilkan dari rangkaian pembangkit gelombang yaitu 25-100 kHz. Pengujian rangkaian osilator menggunakan osiloskop. Frekuensi ultrasonik mulai berpengaruh terhadap karakterisasi perilaku lalat hijau yaitu pada frekuensi 60 kHz. Lalat hijau banyak mengalami perubahan perilaku akustik pada jarak 20 cm dari sumber pembangkit gelombang dan waktu pemaparan selama 60 menit seluruh lalat hijau menjauh dari sumber pembangkit gelombang.
Desain Sistem Smart Feeder Ayam Berbasis Internet of Things (IoT) Guna Mencegah Keterlambatan Pemberian Pakan
Authors: Agustina Elvinda Bendra , Rachman Dian Arif , Nofillah Recha , Fitri Lia Ikhlasia
Published: March 2024

Pemberian pakan ayam secara manual menjadikan pemberian pakan ayam kurang efektif dan efisien. Pengembangan sistem pemberi pakan ayam cerdas berbasis Internet ofThings (IoT) telah dilakukan. Penelitian ini bertujuan untuk mengembangkan desain sistem smart feeder ayam berbasis IoT guna mencegah keterlambatan pemberian pakan. Memungkinkan alat bekerja dengan melakukan kontrol feeder berdasarkan pengaturan waktu, monitoring hopper secara otomatis yang diintegrasikan dengan IoT. Setiap device dihubungkan dengan internet sehingga dapat dipantau dari jarak jauh. Metode yang digunakan adalah perancangan dan telah dilakukan uji dan pengambilan data. Hasil uji aplikasi Blynk menunjukkan ketepatan pengaturan yang telah diberikan dengan kondisi real. Fungsi sistem alat sudah sesuai dengan desain sistem yang direncanakan. Rata-rata persentase error yang terjadi 14% secara keseluruhan tetapi mengecil sampai rata-rata 3% pada berat pakan diatas 5 kg dikarenakan semakin besar volume hopper maka jarak antara sensor ke pakan semakin dekat sehingga nilai error semakin rendah. Pengujian NTP menunjukkan nilai akurasi dan kepresisian 100%. Uji kecepatan rotasi menunjukkan rata-rata kecepatan rotasi hopper yaitu 445,4 rpm sehingga hopper berotasi sesuai dengan perkiraan. Uji volume distribusi pakan sudah sesuai karna pakan 1 diletakkan paling dekat dengan hopper sehingga volume pakan akan terisi paling banyak di bandingkan dengan tempat pakan lainnya
Karakteristik Klinis Glaukoma Uveitis di Pusat Mata Nasional Rumah Sakit Cicendo Bandung Tahun 2021-2022
Authors: Andrianto Refandi Dwi , Gustianty Elsa , Rifada Raden Maula
Published: March 2024

Uveitic glaucoma is a complication of uveitis that can occur due to severe intraocular inflammation. Objective: To determined the clinical characteristics of uveitic glaucoma based on clinical features and management at the Cicendo Hospital National Eye Center from 2021 until 2022. Methods: This study used a retrospective descriptive method and a cross-sectional design with secondary data as subjects in the form of electronic medical records of patients at the National Eye Center Cicendo Hospital Bandung who had a diagnosis of uveitic glaucoma in the period January 2021 until December 2022. Results: 162 patients (228 eyes) met the inclusion criteria. Most of the patients were women, with a percentage of 66%. Anterior uveitis (44.3%) was the most common type of uveitis. The mean IOP at the initial visit was 30.1 mmHg. One hundred fourteen eyes (50%) were below 3/60 visual acuity. Infection (41.4%) was the most common cause of uveitis. A total of 107 eyes (46,9%) underwent surgery. There was a decrease in the average IOP in each follow-up period. Conclusions: Glaucoma uveitis is commonly found in women with an average age of 48.6 years. Anterior uveitis with an infectious cause is the most common type and cause of uveitis. The most common surgery is a combination of trabeculectomy, lens extraction, and IOL implantation.Keywords:  management of glaucoma,  secondary glaucoma, uveitic glaucoma
Penentuan Kandungan Antioksidan dan Fenolik Total dari Infusa Daun Tanaman Famili Myrtaceae Secara Spektrofotometri
Authors: Yefrida  , Hayatul Isra  , Refilda
Published: March 2024

Myrtaceae family plants are widely distributed in the tropics. The leaves of this plant have been widely used by the community as a traditional medicine. This study aims to determine the total antioxidant and total phenolic content of the infusion of five types of leaves of the Myrtaceae family, namely bay leaves (Syzygium polyanthum), jambak leaves (Syzygium malaccense), guava leaves (Psidium guajava), water guava leaves (Syzygium aqueum). and duwet leaves (Syzygium cumini). Total antioxidant content was determined using the MPM method and total phenolic content using the Folin Ciocalteau method. The highest total antioxidant content was found in jambak leaf infusion of 122.73 ± 3.10 mg AA/g DW, while the highest total phenolic content was found in guava leaf infusion of 58.84 ± 1.86 mg GAE/g DW.
Sintesis Lapis Tipis SrTiO3 dengan Metode Solvotermal
Authors: Melvi Muharmi  , Putri Yulia Eka , Wellia Diana Vanda
Published: March 2024

SrTiO3 thin layer were synthesized through solvothermal method by using FTO (fluorine-doped tin oxide) glass as a conductive substrate. The raw materials strontium nitrate (Sr(NO3)2) and titanium tetra isopropoxide (TTIP) were dissolved in ethanol solvent. Sample purity, elemental compositions and surface morphology were characterized using x-ray diffraction (XRD), energy dispersive x-ray (EDX) and scanning electron microscopy (SEM). XRD analysis showed that the synthesized SrTiO3 thin layer at 200oC for 24 hours with the addition of CTAB and TBA had intensity peaks that mathced the SrTiO3 standard (ICSD #94573) with perovskite structure. This result was supported by the XRD pattern of the sample powder. The EDX spectrum showed that titanium and oxygen were in the sample, but the presence of strontium was not found, due to its weak intensity. Based on the SEM image, the morphology seen is distributed equally and the grain size is rather smaller in the sample with the addition of CTAB and TBA.
FENOMENA FLYPAPER EFFECT PADA PROVINSI YANG MENGALAMI PEMEKARAN DI INDONESIA
Authors: Rambe Roosemarina Anggraini , Purmini  , Hutapia
Published: March 2024

1)To analyze the effect of local revenue (PAD), resource sharing fund (DBH), general grants (DAU), and special grants (DAK) on the local government spending in blooming provinces in Indonesia. 2) To analyze the flypaper effect phenomenon in blooming provinces in Indonesia. This research is exploratory research. The data used is panel data, consisting of 25 blooming provinces from 2014-2020.  The analysis method applied is panel data regression. The dependent variable is government spending, while the independent variables used are local revenue (PAD), resource sharing fund (DBH), general grants (DAU), and special grants (DAK). Local revenue (PAD), general grants (DAU), and special grants (DAK) have a positive effect significantly on government expenditures. While resource sharing fund (DBH) does not have an effect on government expenditures. Furthermore, there is no flypaper effect phenomenon in blooming provinces in Indonesia. Flypaper effect, local revenue (PAD), resource sharing fund (DBH), general grants (DAU), special grants (DAK).
DAMPAK PENGGANDA SEKTOR INDUSTRI PENGOLAHAN UNGGULAN TERHADAP PEREKONOMIAN NUSA TENGGARA TIMUR
Authors: Koylal Johny , M. Kuang Stefanus , C. Abineno Jemseng
Published: March 2024

This study examines the multiplier effect of output, income, and labor in the processing industry sector in the economy of East Nusa Tenggara. The data used in the study are Gross Regional Domestic Product, number of workers, number of inputs and outputs, number of final demands, and the number of primary inputs of East Nusa Tenggara in 2020 sourced from the Central Statistics Agency. The analysis method used is a quantitative analysis of the East Nusa Tenggara Input-Output Table in 2020 which was compiled from the update of the East Nusa Tenggara Input-Output Table in 2017. The results of the analysis show that the grain milling industry sector and the food and beverage industry sector have high output, income, and labor multiplier values or are above the average multiplier value of all economic sectors. Therefore, these two sectors can be considered as leading processing industry sectors in encouraging the growth of the processing industry sector to continue to make a major contribution to the economy
ACTIVATION OF MASS TRANSFER PROCESSES IN DIFFUSION WELDING IN A GLOW DISCHARGE
Authors:   Chernihiv Polytechnic National University, Bolotov Gennadiy , Bolotov Maksym ,   Chernihiv Polytechnic National University, Rudenko Mykhailo ,   Chernihiv Polytechnic National University, Grechka Vladyslav ,   Chernihiv Polytechnic National University
Published: March 2024

The paper examines the effect of ion treatment of contacting surfaces on the activation of mass transfer processes during diffusion welding of metals. Using the example of welding titanium alloys, stainless steel with armco-iron and steel 45, it was determined that the preliminary ion cleaning of the welded surfaces in a glow discharge in an argon environment significantly reduces the time of the incubation period associated with the diffusional absorption of oxygen layers adsorbed on the surface, and provides a reduction in time isothermal aging until the maximum strength of the connection is reached.It is also shown that to ensure the strength of the welded joint at the level of strength of the base metal, it is sufficientto form a transition layer with a thickness of 3...4 microns, which experiences the largest plastic deformations at the first stage of welding. A further increase in the thickness of the transition layer practically does not lead to an increase in strength.Ionic activation of the surfaces to be joined, which is carried out in a vacuum chamber immediately before welding, provides an increase in the diffusion coefficient in the transition zone by approximately three times compared to standard surface preparation by washing them in solvents, and by almost two orders of magnitude compared to the self-diffusion coeffi-cient of the elements. It was established that when welding stainless steel with steel 45, the efficiency of ion activation of surfaces decreases, which is due to the reductive nature of the interaction of carbon contained in the composition of steel 45 in a significant amount, with oxides in the welding zone.It is shown that the most effective application of ionic activation of surfaces during diffusion welding of metals that arehomogeneous or similar in chemical composition, when there is no such important factor of intensification of mass transfer processes as the concentration gradient of elements in the welding zone, as well as metals that contain a small amount of reducing elements, in particular, carbon
Стрельба из тувинского традиционного лука: история возрождения и технология изготовления лука и стрел в современной Туве
Authors: Куулар Сонамаа Николаевна
Published: March 2024

Статья освещает процесс возрождения стрельбы из традиционного лука и технологии изготовления традиционного лука и стрелы в Туве современными материалами, начатый с 2010-х гг. Данный вид национального троеборья наравне с борьбой хүреш и конными скачками был довольно популярным и распространенным в республике, но был полностью забыт во второй половине XX века.
Для возрождения были предприняты усилия специалистов Центра развития тувинской традиционной культуры и ремёсел. Были проведены экспедиции, приглашены мастера — этнические тувинцы из Монголии, которые до сих пор владели технологией изготовления урянхайского лука. Обученные ими тувинские мастера стали далее обучать местных умельцев. Подробно описаны технологии изготовления лука, тетивы, мишени с использованием современных материалов и инструментов.
Организованы турниры по стрельбе, которые стали с тех пор проводиться регулярно. Современные виды турниров по стрельбе из традиционного тувинского лука, которые проводятся: стрельба в ремень и стрельба в мишень на традиционных лыжах. С 2021 года спортсменам начали присваивать почетные звания в соответствии с законом Республики Тыва о государственных наградах.
Когнитивно-семантические типы калмыцких пословиц
Authors: Иванов Евгений Евгеньевич
Published: March 2024

В статье рассматривается когнитивная семантика калмыцких пословиц с точки зрения категоризации ее отношения к действительности, которая отражается в пословичной картине мира в эмпирическом, аксиологическом, онтологическом и логическом аспектах. Материалом исследования послужили 312 пословиц из сборника В. Л. Котвича «Калмыцкие загадки и пословицы» (1905).
Установлено, что калмыцкие пословицы в соответствии с различными аспектами отношения их содержания к действительности разграничиваются на когнитивно-семантические категории (типы пословиц): номологические и сентенциональные (эмпирический аспект), трюистические и грегерические (аксиологический аспект), парадоксальные (логический аспект), абсурдные (онтологический аспект). Пословицы разных когнитивно-семантических типов имеют разную количественную представленность (зафиксировано больше всего сентенциональных, меньше всего абсурдных), несходную логико-семантическую структуру (логически и/или семантически детерминированы чаще абсурдные и парадоксальные, реже — все остальные), различную по сложности понятийно-образную организацию (наиболее осложнены трюистические, парадоксальные и абсурдные, наименее — номологические), неодинаковую степень этнокультурной обусловленности (маркированы чаще сентенциональные и абсурдные, реже — номологические и трюистические).
Чувашские параллели белорусских пословиц (аналогичные единицы и тождественные пословичные модели)
Authors: Петрушевская Юлия Анатольевна
Published: March 2024

В статье рассматриваются соответствия тюркских и славянских пословиц на материале чувашского и белорусского языков на основе структурно-семантического моделирования межъязыковых пословичных параллелей. Материалом исследования послужили 2 500 чувашских пословиц из сборника «Ваттисен самахёсем, каларашсем, сутмалли юмахсем» Н. Р. Романова (2012) и свыше 12 000 пословиц белорусского языка из сборника «Прыказкі і прымаўкі» М. Я. Грынблата (1976).
Установлено, что в чувашском и белорусском пословичных фондах есть аналогичные единицы, которые дифференцируются на универсальные, интернациональные, а также общие для чувашского, белорусского и русского языков. Часть чувашских и белорусских пословиц имеют тождественные структурные модели, которые дифференцируются по степени расхождений в лексико-семантической организации и/или в синтаксической форме. Подавляющее большинство чувашских пословиц, которые коррелятивны белорусским пословицам, в той или иной степени характеризуются этнолингвокультурным своеобразием. Неожиданно большое количество прямых совпадений в структуре и семантике чувашских и белорусских пословиц свидетельствует о типологической близости пословичных фондов данных языков. В то же время этнокультурная маркированность чувашских аналогов и коррелятов белорусских пословиц говорит о наличии тесной взаимосвязи типологически общего и этнокультурно специфического в пословичном фонде чувашского языка.
Дом бытия полилингвальных личностей (интервью с Т. Г. Боргояковой и З. А. Кучуковой)
Authors: Бахтикиреева Улданай Максутовна
Published: March 2024

Многолетнее изучение множественной языковой идентичности инонационально-русских полилингвальных личностей подвели автора (этническую казашку) к выводу о необходимости изучения отдельных «языковых биографий». Каждый конкретный кейс — это уникальная мировоззренческая позиция. Проецирование отдельного опыта на лингвокультурное состояние конкретного этноса предоставляет возможность осмыслить общее через частное, встроенность миноритария в общий социальный контекст. В настоящей работе посредством интервьюирования представлен опыт осмысления не единичного языкового бытия полилингвальных личностей: этнической хакаски (Т. Г. Боргояковой) и балкарки (З. А. Кучуковой), филологов, ученых, по базовому образованию — германистов (английский язык), родившихся в СССР,  ныне живущих в разных республиках Российской Федерации.  
Исследование направлено на выявление индивидуального для осмысления типического. Сопутствующей целью является познание своего не единичного языкового бытия путем сравнения с опытом интервьюируемых. Беседы показывают, что этническая и языковая идентичность могут не совпадать, но при этом личность с не единичной языковой идентичностью, с глубокой мировоззренческой позицией не впадает в позицию «жертвы», не позволяет себе допускать ни виктимных ламентаций, ни пессимизма, ни какого бы то не было негативизма, противостояния, «ярости». Напротив, их иноязыковое бытие — достойные примеры конструирования позитивных жизненных моделей самоощущения, преодолевающих несправедливость и несовершенство окружающей действительности.
Открытие Тувы в ориенталистской оптике (Сергей Минцлов и Отто Менхен-Хельфен)
Authors: Шафранская Элеонора Федоровна , Гарипова Гульчира Талгатовна , Шаймерденова Нурсулу Жамалбековна
Published: March 2024

В статье исследуются литературные травелоги С. Р. Минцлова и О. Менхен-Хельфена, благодаря которым Тува в начале ХХ в. была открыта миру: американцам и европейцам, русским в том числе. Аналитика паттернов образа Тувы в ориенталистской оптике (корпус приемов и средств) — основная цель, которую ставят авторы статьи.
В травелоге русского писателя С. Р. Минцлова «Секретное поручение: Путешествие в Урянхай» (1915) Тува предстает как terra incognita. Отмечаются реперные точки в рецепции Тувы путешественником, которые впоследствии станут типологическими в изображении этого края: природа и быт с ритуальными артефактами, «нецивилизованность» и отличительные антропологические черты тувинцев.
Австрийский историк О. Менхен-Хельфен в своем травелоге «Путешествие в азиатскую Туву» (1931) идет по стопам С. Р. Минцлова, постигая культуру Тувы, ее будни и праздники, природу и хозяйство, ее инфраструктуру конца 1920-х гг., но с одним отличием: он, как и тувинцы, находится под бдительным контролем со стороны советской власти.
Rituximab-induced vasculitis: A rare occurrence
Authors: P Anusha , Santhosh Amitta Rachel , Trikkovil Amoolya Manalil , S Jayalakshmi , M. I Celine , Vineetha Mary , Jacob Amitha Mary
Published: March 2024

Rituximab is a chimeric murine/human monoclonal antibody that targets the CD20 antigen expressed on B lymphocytes. It is Food and Drug Administration-approved for use in pemphigus vulgaris (PV). Usual adverse effects are mild, and vasculitis has been reported very rarely. There are only three biopsy-proven case reports of rituximab-induced vasculitis in medical published literature and none in pemphigus. Here, we report a case of rituximab-induced vasculitis in a 46-year-old female with PV.
El triunfo del Tiempo. Tapices humanistas en la Corte de Isabel la Católica y su fortuna posterior
Authors: Muñoz Martín Roberto
Published: March 2024

El Ministerio de Cultura y Deporte ha adquirido recientemente un tapiz titulado El triunfo del Tiempo, datado hacia 1502-1504 y cuyo diseño se atribuye al círculo de Colyn de Coter.  Su compra y adscripción a Patrimonio Nacional ha reavivado el interés por una serie de tapices, de inspiración petrarquiana, que pudieron haber pertenecido a Isabel I de Castilla (1451-1504). En este artículo se aborda la importancia de incorporar esta temática en las Colecciones Reales, se investigan otros paños que pudieron formar parte del conjunto, o se hicieron con los mismos diseños, y se aborda su vinculación con la reina Católica tras el cotejo de la documentación localizada hasta la fecha.
Richard Hoesman, Designer and Maker of Stained Glass Windows for Érard de La Marck, Banished from Liège in 1533
Authors: Lecocq Isabelle
Published: March 2024

Hilary Wayment's discovery in 1983-1984 of a previously unpublished project for a stained glass window at the Kuperstichkabinett in Berlin has shed new light on the stained glass work of Richard Hoesman, a glassmaker banished from the city of Liège in 1533. As Yvette Vanden Bemden had hypothesised, Richard Hoesman is indeed linked to at least the design of three stained glass windows in the choir of the Basilica of Saint-Martin in Liège, donated by Prince-Bishop Érard de La Mark, and a monumental stained glass window on the theme of the Life of Saint Hubert, intended for the church of the former Abbey of Saint-Hubert. These works establish Richard Hoesman as a talented designer at a time when the art of stained glass was embracing the innovations of the Italian Renaissance.
An Unknown Painting by the Master of Paul and Barnabas in the Cathedral of Bordeaux: the Crucifixion of Saint Andrew
Authors: Bücken Veronique
Published: March 2024

This contribution studies a Crucifixion of Saint Andrew, unpublished, preserved at the Cathedral of Bordeaux. Erroneously attributed to Jan Sanders van Hemessen, this is actually the work of one of his most talented students, an anonymous painter named Master of Paul and Barnabas, after a painting kept in the Museum of Fine Arts in Budapest. Active in Antwerp between 1530 and 1560, this master probably worked for export, several of his paintings being preserved in Spain, among others the Nativity Triptych of Tenerife.
Los retratos de dos hermanos del Kunsthistorisches Museum de Viena por Van Dyck: Juan y Pedro van Vucht, encargados por su padre Jan van Vucht
Authors: Cruz Yábar Juan María
Published: March 2024

Se considera actualmente que los retratos de dos hermanos del Kunsthistorisches Museum de Viena pintados por Van Dyck representan a los marqueses de Lanzo y Borgomanero. Rebatimos esta identificación y proponemos una nueva con ayuda de documentación inédita, que demuestra se trata de Juan y Pedro van Vucht, hijos del mercader flamenco de Madrid Jan van Vucht.
Peter van Lint en España: el grabado de Jan Meyssens (1649) como fuente para Lázaro Díaz del Valle (1656-1659)
Authors: De la Pisa Sirga
Published: March 2024

Estudio sobre la presencia del pintor flamenco Peter van Lint entre los Barones insignes de la pintura, en el manuscrito de Lázaro Díaz del Valle, Origen e Ilustración del nobilísimo y real arte de la pintura y dibuxo... en 1656-1659, dado a conocer por Díaz Padrón. La serie de retratos con biografías de Jan Meyssens en Amberes, en 1649, se da a conocer como la fuente para Díaz del Valle, destaca la difusión de esta obra fuera de Flandes y con anterioridad a su inclusión en Het Gulden Cabinet de Cornelis de Bie en 1661. Para ello, se analizan dos series del Rijksbureau voor Kunsthistorische Documentatie (RKD) y del Museo Plantin-Moretus Prentenkabinet de Amberes.
La venta de pinturas de Jean de Croÿ, II conde de Solre, a Felipe IV en 1638 para la decoración del Real Alcázar de Madrid
Authors: Simal López Mercedes
Published: March 2024

Tras la muerte de Jean de Croÿ, II conde de Solre, en 1638, su colección de pinturas fue vendida en pública almoneda. De ellas, más de una veintena pasaron a la colección real, pero hasta ahora no estaba claro si habían sido una adquisición o un regalo, y a qué real sitio se habían destinado. Gracias a nueva documentación podemos precisar cómo las pinturas fueron una compra, abonada en 1641, y que pasaron a formar parte de la decoración de las bóvedas y cuarto bajo del Real Alcázar de Madrid.
Una guirnalda devocional de Jan Philip van Thielen y Erasmus II Quellinus en la colección de la Universidad de Navarra
Authors: López José Javier Azanza , Vilches Morales Manuel
Published: March 2024

La colección de pintura de la Universidad de Navarra (Pamplona) conserva una guirnalda devocional firmada en 1655 por el pintor flamenco Jan Philip van Thielen. Este trabajo analiza las circunstancias de su ingreso en la colección universitaria, siguiendo la pista al lienzo desde Bruselas hasta Pamplona, así como sus características formales e iconográficas que se ajustan a las propias del género y pueden ponerse en relación con obras coetáneas de otros artistas como Jan Brueghel el Viejo y Daniel Seghers.
Le bélier antique du Musée de Palerme aurait-il inspiré l'agneau du Saint Jean-Baptiste de Tolède attribué au Caravage?
Authors: Van Nerom Claire
Published: March 2024

Si la relation entre le bélier de Palerme et l'agneau du tableau de Tolède représentant Saint Jean-Baptiste est maintenue, l'attribution du tableau au Caravage pourrait être confirmée, de même que la présence du peintre à Palerme en 1609.Resumen: Si se retiene la relación de parentesco entre el carnero de Palermo y el cordero del cuadro toledano de San Juan Bautista, se podría confirmar la atribución del cuadro a Caravaggio, y al mismo tiempo el hecho de que el pintor estuvo en Palermo en 1609.
La Familia de Felipe V de Louis-Michel van Loo. Una lectura iconológica
Authors: Valiñas López Francisco Manuel
Published: March 2024

La Familia de Felipe V es el proyecto más ambicioso que Louis-Michel van Loo acometío durante sus años como pintir de cámara en España. El cuadro, además de su finalidad retratistica, encierra una serie de contenidos profundos de carácter poítico, diplomático y dinástico que son los que este trabajo pretende desentrañar.
The Moderated-Mediation Effect of Job Engagement and Psychological Capital Focus in the Relationship between Hotel Employees’ Family Incivility on and Workplace Well-being
Authors:   School of Management, Wuhan Polytechnic University, Wuhan, China, Huang Meng , Zou Linhan ,   School of Management, Wuhan Polytechnic University, Wuhan, China, Wang Ping ,   School of Management, Wuhan Polytechnic University, Wuhan, China, Amdu Midru Kidist ,   School of Management, Wuhan Polytechnic University, Wuhan, China, Guo Tiantian ,   School of Management, Wuhan Polytechnic University, Wuhan, China, Wang Xiaoqian ,   School of Business, Hubei University, Wuhan, China
Published: March 2024

Based on the conservation of resources theory, this paper analyzes the impact of family incivility on hotel employees’ workplace well-being through the work-family resource model and discusses the mediating role of job engagement and the moderating role of psychological capital. Through collecting 382 valid questionnaires, the results show that: family incivility is significantly negatively correlated with employees’ workplace well-being. Job engagement plays a partial mediating role in the influence of family incivility on employees’ workplace well-being. Psychological capital plays a moderating role in the negative effect of family incivility on job engagement. Psychological capital moderates the indirect effect of family incivility on their workplace well-being through job engagement. In other words, when the psychological capital level of hotel employees is high, the negative impact of family incivility on workplace well-being through job engagement will be weakened. The conclusion of this study can not only expand the relevant literature on the work-family resource model of hotel human resource management in theory, and also provide a useful reference for the hotel to improve the service quality of staff in practice.
Monitoring MDR Evolution and Transmission Dynamics of MDR Klebsiella Pneumonia
Authors:   Department of Microbiology, NRI Institute of Medical Sciences, India, B Janakiram , D Shanthikrupa ,   Krishna University College of Pharmacy and Research, Krishna University, India, J Naveena Lavanya Latha ,   Department of Biosciences and Biotechnology, Krishna University, India
Published: March 2024

A Gram-negative, non-motile, capsuled, lactose fermenting, facultatively anaerobic, rod shaped bacteria called Klebsiella pneumoniae. On MacConkey agar, it manifests as a mucoid lactose fermenter. Although it is a natural component of the flora in the mouth, skin, and intestines [1], it can harm the lungs of both humans and animals if aspirated (inhaled), notably the alveoli (in the lungs), resulting in bloody sputum. It is the most important member of the Enterobacteriaceae family’s Klebsiella genus when used in a therapeutic setting. Clinical samples from humans have also shown the presence of K. oxytoca and K. rhinoscleromatis. Klebsiella species have recently emerged as significant nosocomial infection pathogens. About 30% of the strains can fix nitrogen under anaerobic conditions, and they are found in soil where it naturally occurs [2]. As a free-living diazotroph, K. pneumoniae’s nitrogen fixation mechanism has undergone extensive research and is of agricultural importance because it has been shown to boost crop yields in agricultural settings [3]. On their cell surfaces, members of the Klebsiella genus normally express two different types of antigens. The Lipopolysaccharide (LPS), which comes in nine different types, contains the first antigen, called O antigen. The second is K antigen, an over 80 variety capsular polysaccharide [4]. Both support serogrouping and contribute to pathogenicity. It has a close relationship to K. oxytoca, which it differs from in that it is indole-negative and can grow on melezitose but not 3-hydroxybutyrate.
Benchmarking ML in ADMET predictions: A focus on hypothesis testing practices
Authors: Kamuntavičius Gintautas , Bastas Orestis , Paquet Tanya , Norvaišas Povilas , Tal Roy
Published: March 2024

This study, focusing on predicting Absorption, Distribution, Metabolism, Excretion, and Toxicology (ADMET) properties, addresses the key challenges of ML models trained using ligand-based representations. We propose a structured approach to data feature selection, taking a step beyond the conventional practice of combining different representations without systematic reasoning. Additionally, we enhance model evaluation methods by integrating cross-validation with statistical hypothesis testing, adding a layer of reliability to the model assessments. This approach aims to bolster the reliability of ADMET predictions, providing more dependable and informative model evaluations.
Mapping Structure-Property Relationships in Fullerene Systems: A Computational Study from C20 to C60
Authors: Liu Bin , Jin Jirui , Liu Mingjie
Published: March 2024

Fullerenes, as characteristic carbon nanomaterials, offer significant potential for diverse applications due to their structural diversity and tunable properties. Numerous isomers can exist for a specific fullerene size, yet a comprehensive understanding of their fundamental properties remains elusive. In this study, we construct an up-to-date computational database for C20-C60 fullerenes, consisting of 5770 structures, and calculate 12 fundamental properties using DFT, including stability (binding energy), electronic properties (HOMO-LUMO gap), and solubility (partition coefficient logP). Our findings reveal that the HOMO-LUMO gap weakly correlates with both binding energy and logP, indicating that electronic properties can be tailored for specific uses without affecting stability or solubility. In addition, we introduce a set of novel topological features and geometric measures to investigate structure-property relationships. For the first time, we apply atom, bond, and hexagon features to effectively predict the stability of C20-C60 fullerenes, surpassing the conventional qualitative isolated pentagon rule, and demonstrating their robust transferability to larger-size fullerenes beyond C60. Our work offers guidance for optimizing fullerenes as electron acceptors in organic solar cells and lays a foundational understanding of their functionalization and applications in energy conversion and nanomaterial sciences.
Integrating Genetic Algorithms and Language Models for Enhanced Enzyme Design
Authors: Nana Teukam Yves Gaetan , Zipoli Federico , Laino Teodoro , Criscuolo Emanuele , Grisoni Francesca , Manica Matteo
Published: March 2024

Enzymes are molecular machines optimized by nature to allow otherwise impossible chemical processes to occur. Their design is a challenging task due to the complexity of the protein space and the intricate relationships between sequence, structure, and function. Recently, large language models (LLMs) have emerged as powerful tools for modeling and analyzing biological sequences, but their application to protein design is limited by the high cardinality of the protein space. This study introduces a framework that combines LLMs with genetic algorithms (GAs) to optimize enzymes. LLMs are trained on a large dataset of protein sequences to learn relationships between amino acid residues linked to structure and function. This knowledge is then leveraged by GAs to efficiently search for sequences with improved catalytic performance. We focused on two optmization tasks: improving the feasibility of biochemical reactions and increasing their turnover rate. Systematic evaluations on 105 biocatalytic reactions demonstrated that the LLM-GA framework generated mutants outperforming the wild-type enzymes in terms of feasibility in 90% of the instances. Further in-depth evaluation of seven reactions reveals the power of this methodology to make `the best of both worlds' and create mutants with structural features and flexibility comparable to the wild types. Our approach advances the state-of-the-art computational design of biocatalysts, ultimately opening opportunities for more sustainable chemical processes.
Mucus-Inspired Self-Healing Hydrogels: A Protective Barrier for Cells against Viral Infection
Authors: Bej Raju , Stevens Corey Alfred , Nie Chuanxiong , Ludwig Kai , Degen George , Kerkhoff Yannic , Pigaleva Marina , Adler Julia M. , Bustos Nicole A. , Page Taylor M. , Trimpert Jakob , Block Stephan , Kaufer Benedikt B. , Ribbeck Katharina , Haag Rainer
Published: March 2024

Mucus is a dynamic biological hydrogel, composed primarily of the glycoprotein mucin, exhibits unique biophysical properties and forms a barrier protecting cells against a broad spectrum of viruses. Here we developed a polyglycerol sulfate-based dendronized mucin-inspired copolymer (MICP-1) with ~10 % repeating units of activated disulfide as cross-linking sites. Cryo-EM analysis of MICP-1 reveals an elongated single-chain fiber morphology. MICP-1 shows potential inhibitory activity against many viruses such as HSV-1 and SARS-CoV-2 (including variants such as Delta and Omicron). MICP-1 produces hydrogels with viscoelastic properties similar to healthy human sputum and with tuneable microstructures using linear and branched PEG-thiol as cross-linkers. Single particle tracking microrheology, EPR and Cryo-SEM were used to characterize the network structures. The synthesized hydrogels exhibit self-healing properties, along with viscoelastic properties that are tuneable through reduction. a transwell assay was used to investigate the hydrogel’s protective properties against viral infection against HSV-1. Live-cell microscopy confirmed that these hydrogels can protect underlying cells from infection by trapping the virus, due to both network morphology and anionic multivalent effects. Overall, our novel mucin-inspired copolymer generates mucus-mimetic hydrogels on a multi-gram scale. These hydrogels can be used as a models for disulfide-rich airway mucus research, and as biomaterials.
Identification of Two-Dimensional Covalent Organic Frameworks with mcm Topology and their Application in Photocatalytic Hydrogen Evolution
Authors: Tian Peng-Ju , Han Xiang-Hao , Qi Qiao-Yan , Zhao Xin
Published: March 2024

Covalent organic frameworks have attracted considerable attention in recent years as a distinct class of crystalline porous organic materials. Their functional properties are inherently linked to their structural characteristics. Although hundreds of COFs have been reported so far, the types of their topologic structure are still limited. In this article, we report the identification of mcm topology for three porphyrin-based two-dimensional COFs which are constructed from [4 + 4] imine condensation reactions. The mcm net is generated by pentagonal tiling which has not yet been identified for COFs before. The structure of the COFs is elucidated by a variety of experimental characterization and structural simulations, by which their reticular frameworks comprised of pentagonal pores have been confirm. Moreover, the COFs exhibit high performance in photocatalytic hydrogen evolution from water, with the best one up to 10.0 mmol g-1 h-1 after deposited 0.76 wt.% Pt as a co-catalyst. This study identifies mcm topology for COFs for the first time, and highlights the potential of these COFs as promising photocatalysts for sustainable hydrogen production from water.
Rediscovery of Branchipus schaefferi (Branchiopoda: Anostraca) in Belgium - notes on habitat requirements and conservation management
Authors: Vanschoenwinkel Bram , Brendonck Luc , Pinceel Tom , Dupriez Pascal , Waterkeyn Aline
Published: March 2024

Fairy shrimps (Crustacea, Anostraca) are specialized inhabitants of inland water bodies that

periodically dry or freeze over. Here we report the first observation since 1997 of a member of this basal crustacean order in Belgium and the first sighting of the species Branchipus schaefferi Fischer, 1834 since 1930. Nineteen populations were found in a restricted area located 55 km SE of Brussels in the Province of Hainaut. Based on a field survey, we discuss the habitat characteristics of these populations. We discuss also the distribution and habitat requirements of the species based on literature and formulate a number of guidelines for the conservation of this species as well as other large branchiopods in densely settled areas with intensive agriculture such as Belgium. Finally, we formulate a number of likely explanations for the lack of recent observations of these organisms in Western Europe and in Belgium.
Autecology of the extant ostracod fauna of Lake Ohrid and adjacent waters - a key to paleoenvironmental reconstruction
Authors: Lorenschat Julia , Schwalb Antje
Published: March 2024

Understanding the ecology of bioindicators such as ostracods is essential in order to reconstruct past environmental and climate change from analysis of fossil assemblages preserved in lake sediment cores. Knowledge of the ecology of ancient Lake Ohrid’s ostracod fauna is very limited and open to debate. In advance of the Ohrid ICDP-Drilling project, which has potential to generate high-resolution long-term paleoenvironmental data of global importance in paleoclimate research, we sampled Lake Ohrid and a wide range of habitat types in its surroundings to assess 1) the composition of ostracod assemblages in lakes, springs, streams, and short-lived seasonal water bodies, 2) the geographical distribution of ostracods, and 3) the ecological characteristics of individual ostracod species. In total, 40 species were collected alive, and seven species were preserved as valves and empty carapaces. Of the 40 ostracod species, twelve were endemic to Lake Ohrid. The most common genus in the lake was Candona, represented by 13 living species, followed by Paralimnocythere, represented by five living species. The most frequent species was Cypria obliqua. Species with distinct distributions included Heterocypris incongruens, Candonopsis kingsleii, and Cypria lacustris. The most common species in shallow, flooded areas was H. incongruens, and the most prominent species in ditches was C. kingsleii. C. lacustris was widely distributed in channels, springs, lakes, and rivers. Statistical analyses were performed on a “Lake Ohrid” dataset, comprising the subset of samples from Lake Ohrid alone, and an “entire” dataset comprising all samples collected. The unweighted pair group mean average (UPGMA) clustering was mainly controlled by species-specific depth preferences. Canonical Correspondence Analysis (CCA) with forward selection identified water depth, water temperature, and pH as variables that best explained the ostracod distribution in Lake Ohrid. The lack of significance of conductivity and dissolved oxygen in CCA of Ohrid data highlight the uniformity across the lake of the well-mixed waters. In the entire area, CCA revealed that ostracod distribution was best explained by water depth, salinity, conductivity, pH, and dissolved oxygen. Salinity was probably selected by CCA due to the presence of Eucypris virens and Bradleystrandesia reticulata in short-lived seasonal water bodies. Water depth is an important, although indirect, influence on ostracod species distribution, which is probably associated with other factors such as sediment texture and food supply. Some species appeared to be indicators for multiple environmental variables, such as lake level and water temperature.