bluuebunny/crossref_metadata_2025 huggingface dataset:
Принципы проектирования интерфейсов для инклюзивного образования детей младшего школьного возраста
Authors:   Университет ИТМО, Белоусова В.Л. , Белоусова А.Л. ,   Университет ИТМО, Джумагулова А.Ф. ,   Университет ИТМО
Published: June 2023

Цель статьи заключается в рассмотрении существующих исследований, содержащих описание принципов проектирования веб-интерфейсов для инклюзивного образования, описание подготовки и проведения пилотного эксперимента с целью проверки экспериментальных гипотез, а также планирование следующего этапа исследований. Были выделены принципы проектирования интерфейсов для детей, а также принципы веб-доступности, которые должны быть учтены при реализации инклюзивных интерфейсов для детей. Проведен анализ образовательных веб-ресурсов — Я.Класс, GetCourse, Learme, Stepik и ИнтернетУрок, по результатам которого было принято решение о проведении пилотного эксперимента с использованием платформы Stepik. В пилотном эксперименте приняло участие 10 респондентов, часть из которых изучала материал с помощью курса, в котором были учтены принципы веб-доступности и рекомендации по проектированию интерфейсов для детей, часть изучала материал без учета данных принципов. На основе пилотных данных и гипотез, а также выбранных уровня вероятности групповой ошибки FWER = 5% и α = 1,25% был рассчитан размер выборки для проведения основного эксперимента, который равен 36. Это обеспечит мощность равную 90% для двух основных гипотез о влиянии вида интерфейса на балл и время, мощность равную 80% для гипотезы о корреляции между баллом и возрастом и мощность равную 99,95% для гипотезы о корреляции между баллом и наличием особых образовательных потребностей. В дальнейшем планируется проведение основного эксперимента для проверки гипотез и проектирование собственного образовательного интернет-ресурса.
Исследование влияния выбора игрового персонажа на пользователя в текстовых квестах
Authors:   Университет ИТМО, Засыпкина Ю.А. , Балканский А.А. ,   Университет ИТМО
Published: June 2023

Авторы исследуют воздействие добавления функции выбора игрового персонажа на пользователя в текстовых квестах, являющихся одним из видов интерактивных текстовых игр (Interactive fiction). Жанр развивался самобытно, а потому не имеет свода правил, четко прописанных гайдлайнов, на основе которых можно было бы создавать свою игру, так как работать с пониманием структуры станет проще и приятнее, также будет легче проанализировать реакцию пользователей. До настоящего времени каждый представитель жанра создавался с нуля, что порой плохо влияло, как на скорость разработки, так и на конечный продукт. По-настоящему эффективной игра может быть только при должном проектировании и реализации. Но это слишком объемный пласт работы для одного исследования. Поэтому для работы был выделен такой элемент игры, как возможность выбора внешнего вида персонажа, так как игры данного жанра обычно предлагали фиксированного персонажа, в редких случаях с возможностью добавить ему украшения. Однако в других играх возможность выбора имела положительное влияние на пользователей. Поэтому возник вопрос — будет ли также и с текстовыми играми или предпочтительнее окажется фиксированный персонаж.
Культурно-историческая теория развития психики и личности обучающихся применительно к цифровизации жизнедеятельности ребёнка
Authors:   Межрегиональная Межведомственная Интернет-Гостиная «Белая Речь», Рыбаков Д.Г. , Рыбакова Е.В. ,   Башкирский государственный университет
Published: June 2023

Человек осваивает окружающий мир, позиционирует себя во внешнем пространстве в целостном единстве познания и праксиса. Разработанная Л. С. Выготским культурно-историческая теория развития психики и личности ребёнка исключает предоставление какой-либо специально сегрегированной, «детской» среды для воспитания и обучения детей и подростков, к чему нередко тяготеют некоторые методические средства и образовательные системы. Соответственно, информационно-технологическое преобразование коммуникативной, средовой, производственной, образовательной составляющих общественного бытия применительно к становлению личности обучающегося, формированию и развитию его функциональных и компетентностных ресурсов органично включает IT-компонент занятости и в структуру его жизнедеятельности, и в его развивающееся сознание, будучи инструментом, предметом и результатом труда, ценностным ориентиром и событийным аспектом уникального социально-образовательного маршрута ребёнка. Разработка адресных условий обеспечения потребности — а, значит, права обучающегося на индивидуализированный IT-компонент жизнедеятельности — является насущной задачей общеобразовательной и специализированной поддержки современного детства. Онтогенез функциональных систем человека, отражая филогенетическое единство развития и функционирования популяции, сообщества, цивилизации, в цифровом аспекте жизнедеятельности представляет собой трансполяцию развивающегося ИТ-пространства на субъекта, различные группы населения, уровни взаимодействия и среды, и потому существует в цивилизационном диалоге сознания и технологий.
База данных по истории и технологии бумаги: состав, структура, особенности
Authors:   Санкт-Петербургский институт истории РАН, Корчилава А.В. , Носова Е.И. Е.И. ,   Санкт-Петербургский институт истории РАН
Published: June 2023

В данной статье описывается проектирование и создание базы данных по истории и технологии бумаги. В связи быстрым развитием большого количества различных методик исследования бумаги базы данных становятся особенно необходимы, так как редко один специалист владеет всеми методами: чаще образец проходит серию исследований у разных специалистов, разными методами. В результате информация рассредоточивается, и необходимо свести ее воедино, чтобы получить обобщенные сведения об образце для последующего анализа и исследования. Ключевой особенностью этой базы данных является ее гибкость и адаптивность, так как технологии изучения и исследования бумаги развиваются, а вместе с ними и увеличиваются объемы информации, необходимые для хранения одного объекта. Для полноценного анализа каждый объект проходит множество исторических, реставрационных и естественнонаучных исследований и, чтобы вся информация хранилась надежно и структурированно, создается база данных на языке SQL с применением системы управления базами данных PostgreSQL. База содержит в себе историческую справку, фотографии и расчеты, информацию о предыдущей реставрации, снимки и файлы спектров, результаты количественного анализа и многие другие характеристики. Для комфортного пользования всеми специалистами, база размещается на сайте с помощью фреймворка Django, работающем на языке Python.
Karakteristik Lokasi dan Pola Resapan: Data, Analisis dan Respon
Authors: Ichwana Ichwana , Sumono Sumono , Delvian Delvian
Published: June 2023

Characteristics of the Location and Recharge Pattern: Data, Analysis and ResponseABSTRACT. Infiltration as a movement of water could determine a large amount of water which could move over the soil surface to the river, and the water that went into the ground. The information of water infiltration in watershed was required to make decision about sustainable water resources. On the other hand, the infiltration was dynamic, that was why it was interesting to be analyzed. The purpose of this study was to determine differences in volume that occurred in the watershed catchment of Krueng Peusangan. Having viewed the differences and similarities location against variabel temperature, evapotranspiration, moisture, discharge, rainfall for the fivepoint, watershed locations of Krueng Peusangan using Principal Component Analysis (PCA). Based on PCA, the location was selected to analyze the volume of leach discharge measured during 2008-2011 in Wih Nareh and Kr. Teumbo. Absorption volume indicated that occurred instable infiltration at Kr. Teumbo. It needed guidelines for land use arrangement and forest function, especially in the recharge area. So, it could maintain the balance of hydrological cycle, groundwater quantity and quality properly.
Analisis Efisiensi Pada Sistem Pengeringan Bunga Rosella (Hibiscus sabdariffa L) Menggunakan Alat Pengering Tipe Lemari
Authors: Safrizal Refli , Syah Hendri , Khathir Rita
Published: June 2023

Efficiency Analysis in Drying System for Rosella (Hibiscus sabdariffa L) Using Cabinet Type DryerABSTRACT. Drying is one of the most important process in producing a good quality of rosella tea. The study was aimed to evaluate the drying efficiency of rosella tea by using a cabinet dryer. The source of energy for the dryer was from the burning of charcoal. The charcoal was prepared from the coconut shell since it was abundant biomass product. About 7.5 kg of fresh rosella flower was dried for 17 hours. The total of charcoal consumed was 17 kg. The moisture content of rosella flower was reduced from 90 to 12 %. The analysis showed that the total of energy produced from the burning of 17 kg charcoal was 309.4 MJ, whilst the total energy needed to dry the flower was 15,72 MJ. Therefore, the drying efficiency was still low about 4.58%. Further study is recommended to improve the drying efficiency for example by the use of deeper depth of dried products between 2 and 6 cm as well as by improving the system of hot air circulation.
Perbandingan Nilai Intersepsi Pohon Mahoni (Swietania mahagoni) dan Pohon Pinus (Casuarina cunninghamia)
Authors: Mechram Siti , Chairani Susi , Zaki Ahmad
Published: June 2023

Comparation of Interception Loss on Mahoni (Swietania mahagoni) and Pinus (Casuarina cunninghamia)ABSTRACT. Interception of rain is the retention of rainwater on surface vegetation before it evaporates back into the atmosphere. Research relating to the interception is still lacking, so it is necessary to study the interception on some types of plants. Although the interception had a little value, and sometimes overlooked, but in some plants have a considerable effect. The purpose of this study was to determine the magnitude of interception in Mahogany and Pine trees, as well as to determine the relationship between rainfall and interception. In this study, samples taken at the Mahogany and Pine trees by the number of 3 samples of each tree. There were two approaches to measure the amount of interception, the first approach was the Volume Balance Approach and the second approach was the Energy Balance Approach. In this study, the volume balance approach, with measurements of rainfall, throughfall, stemflow and interception for ten days of rainfall. The average amount of interception Mahogany obtained 15.5 mm (7.31%) of the total amount of rainfall and the correlation coefficient (r) was at 0.554. While the average number of interception Pinus acquired 87.23 mm (41.15%) of the total amount of rainfall and the correlation coefficient (r) was at 0.505. The size of the interception was influenced by wind speed, density and canopy shape. The research obtained that the interception for pine trees was higher than Mahogany trees. The results also showed that the higher percentage of rainfall, the smaller interception. This was due to the canopy conditions and climatic factors.
Optimization of Renewable Energy Hybrid System for Grid Connected Application
Authors: Mustaqimah Mustaqimah
Published: June 2023

ABSTRACT. Hybrid energy systems are pollution free, takes low cost and less gestation period, user and social friendly. Such systems are important sources of energy for shops, schools, and clinics in village communities especially in remote areas. Hybrid systems can provide electricity at a comparatively economic price in many remote areas. This paper presents a method to jointly determine the sizing and operation control of hybrid energy systems. The model, PV wind hydro and biomass hybrid system connects to grid. The system configuration of the hybrid is derived based on a theoretical domestic load at a typical location and local solar radiation, wind and water flow rate data and biomass availability. The hybrid energy system is proposed for 10 of teacher’s houses of Industrial Training Institute, Mersing. It is predicted 10 kW load consumption per house. The hybrid energy system consists of wind, solar, biomass, hydro, and grid power. Approximately energy consumption is 860 kWh/day with a 105 kW peak demand load. The proposed hybrid renewable consists of solar photovoltaic (PV) panels, wind turbine, hydro turbine and biomass. Battery and inverter are included as part of back-up and storage system. It provides the economic sensitivity of hybridization and the economic and environmental benefits of using a blend of technologies. It also presents the trade off that is involved in optimizing a hybrid energy system to harness and utilize the available renewable energy resources efficiently.
Performance of a Forced-Convection Greenhouse Dryer for Fish Drying
Authors: Martunis Martunis
Published: June 2023

ABSTRACT. This research present experimental performance of a forced convection greenhouse dryer for drying of fish. The greenhouse dryer was installed at Aceh province, Indonesia. It has a concrete floor with the area of 6×4 m2. The roof of dryer is built in semi-cylindrical shape and covered with transparent polycarbonate sheets. Two axial flow fans powered by a 50-watt solar cell module was used to generate forced convection for ventilating the dryer.To investigate its performance, the dryer was used to dry two batches of fish. The Results showed that to dry 50 kg fish with initial moisture 68 % required 11 hours. Incontrast, to dry the same amount of fish using sun drying take a time about 2 days. The air temperature inside greenhouse dryer at noon in the clear day was 45-55°C.Kinerja Pengering Rumah Kaca Dengan Metode Konveksi Paksa Untuk Pengeringan IkanABSTRAK. Penelitian ini memperlihatkan hasil percobaan terhadap kinerja pengering rumah kaca dengan metode konveksi udara secara paksa pada pengeringan ikan. Penelitian pengering rumah kaca ini dilakukan di Propinsi Aceh, Indonesia. Pengering ini berlantaikan beton dengan luas sebesar 6x4 m2. .Atapnya dibuat berbentuk semi-selinder dan ditutup dengan lembaran plastik transparan berbahan polikarbonat. Dua buah kipas dengan aliran udara secara aksial dipasang dengan sumber daya berasal dari panel surya sebesar 50 Watt dan dipakai untuk menghasilkan konveksi udara paksa pada ventilasi pengering. Untuk menginvestigasi kinerja rumah kaca ini, pengering ini digunakan untuk mengeringkan dua tumpukan ikan. Hasilnya menunjukkan bahwa untuk mengeringkan sebanyak 50 kg ikan dengan kadar air awalnya sebesar 68% membutuhkan waktu selama 11 jam. Sebaliknya, dengan menggunakan sinar matahari secara langsung, untuk mengeringkan ikan dengan jumlah yang sama, maka waktu yang dibutuhkan lebih lama yaitu sekitar 2 hari. Suhu udara di dalam rumah pengering tepat pada siang hari yang cerah berkisar antara 45-55oC.
Evaluasi Kebutuhan Air Netto untuk Padi Merah (Oryza nivara) pada Fase Vegetatif dan Generatif di Kecamatan Ingin Jaya Kabupaten Aceh Besar
Authors: Basri Hasrul , A. Ali Syamaun , Anwar Fuadi Najla
Published: June 2023

Abstrak. Penelitian deskriptif ini bertujuan untuk mengetahui kebutuhan air netto untuk padi merah pada fase vegetatif dan generatif di Kecamatan Ingin Jaya Kabupaten Aceh Besar. Penelitian ini dilaksanakan di Petak Tersier CG. 1. Kr Daerah Irigasi Krueng Aceh sejak Februari 2013 sampai Mei 2013. Tahap penelitian yang dilakukan yaitu pegumpulan data sekunder berupa peta jaringan irigasi, pola tanam daerah irigasi, sistem pemberian air irigasi dan data curah hujan. Tahap kedua yaitu pengumpulan data primer berupa pengukuran laju perkolasi, evapotranspirasi tanaman, perhitungan curah hujan efektif dan perhitungan kebutuhan air netto di lapangan. Hasil penelitian menunjukkan bahwa, pada petak tersier yang diamati memiliki tekstur tanah lempung dan lempung berliat. Rata-rata perkolasi yang terjadi setiap harinya yaitu antara 2,36 mm/hari sampai 2,69 mm/hari. Rata-rata nilai evapotranspirasi tanaman padi merah pada fase vegetatif yaitu sebesar 1,51 mm/hari lebih tinggi dibandingkan dengan evapotranspirasi tanaman pada fase generatif yaitu sebesar 1,39 mm/hari dan pergantian lapisan air sebesar 3,3 mm/hari. Kebutuhan air netto lapangan padi merah antara 1-4 mm/hari. Rendahnya kebutuhan air netto untuk tanaman padi merah disebabkan oleh  pergantian lapisan air secara terus menerus dan curah hujan efektif.Abstract. The objective of this descriptive research is to know the net field requirement for red paddy in vegetative and generative phases in Ingin Jaya, Aceh Besar District. This research has been conducted in a tertiary paddy field of CG. 1. Kr of Irrigation Area of Krueng Aceh from February 2013 until May 2013. The stages of research is collecting secondary data, such as: map of irrigation, pattern and time of planting, the irrigation system and precipitation data. The second stage is collecting the primary data, such as: percolation, evapotranspiration, the calculation of effective rainfall and net field requirement in the field. The results showed that at the observed tertiary paddy field, it had loamy and clayey loamy soil textures. The average percolation that occurred in everyday was 2,36 mm/day to 2,69 mm/day. The average evapotranspiration of red paddy at vegetative phase was 1,51 mm/day, which was higher than the evapotranspiration at generative phase, which was 1,39 mm/day, and the water layer rechange was 3,3 mm/day. The net field requirement of red paddy in the field was 1-4 mm/day. This was low due to the occurrence of  a continuous water layer rechange and the effective rainfall.
The Influence of Rheological Properties on The Pump Power Requirement for Transfering Ketchup
Authors: Darwin Darwin
Published: June 2023

Abstract. This research aimed to analyze the influence of rheological properties of ketchup on the pump power, required during transporting process. This research was done through using a computer programme designed for calculating and analyzing the influence of rheological properties toward materials and equipments installed in the transport system. Those rheological properties derived from laboratory analysis and literature review include viscosity and density from any type of ketchup. Results analysed by a computer programming revealed that flow behaviour Index (n) and consistency coefficient (m) were the rheological properties interacting with each other since these parameters were the viscosity of ketchup that influences energy losses in the transport system. Once the total of energy losses was obtained from the system, the pump power required for transfering the product also can be known. Based on the simulation conducted by using rheological parameters of ketchup with consistency coefficient of 12.33 PaSn, and flow behaviour Index at 0.41 was obtained total energy losses at 202.26 J/kg with the pump power requirement at 0.22 kW. Once consistency coefficient was 18.7 PaSn, and flow behaviour Index was at around 0.4, the total of energy losses increased to 277.58 J/kg with pump power requirement at 0.28 kW. Abstrak. Penelitian ini bertujuan untuk menganalisa pengaruh dari sifa-sifat reologi dari kecap terhadap daya pompa yang dibutuhkan selama proses transfer atau pengalirannya. Penelitian ini dilakukan menggunakan suatu program komputer yang didesain untuk menghitung dan menganalisa pengaruh sifat-sifat reologi terhadap peralatan dan bahan yang digunakan pada sistem transfer. Sifat-sifat reologi tersebut diperoleh dari analisis laboratorium dan studi literatur yang berupa viskositas dan densitas dari berbagai tipe kecap. Hasil yang telah dianalisis dengan program komputer mengungkapkan bahwa index perilaku aliran (n) dan koefisien konsistensi (m) merupakan sifat reologi bahan yang saling berinteraksi, hal ini karena parameter tersebut merupakan viskositas dari kecap yang mempengaruhi kehilangan energi pada sistem transfer. Ketika total kehilangan energi dari sistem diketahui, maka daya pompa yang dibutuhkan untuk mentransferkan produk kecap tersebut juga dapat diketahui. Berdasarkan simulasi yang dilakukan dengan menggunakan parameter-parameter reologi dari kecap dengan koefisien konsistensi 12.33 PaSndan index perilaku aliran 0.41 maka diperoleh total kehilangan energi sebesar 202.26 J/kg, daya pompa yang dibutuhkan sebesar 0.22 kW. Ketika koefisien konsistensi bahan 18.7 PaSn, dan index perilaku aliran 0.4, maka total kehilangan energi meningkat menjadi  277.58 J/kg dengan daya pompa yang dibutuhkan juga meningkat menjadi 0.28 kW.
Penentuan Umur Simpan Lengkuas dengan Model Arrhenius Berdasarkan Kadar Air dan Kadar Sari Larut dalam Air
Authors: Khathir Rita , Ratna Ratna , Putri Rama Niza
Published: June 2023

Abstrak. Lengkuas (Alpinia galanga) adalah salah satu tanaman penting bagi masyarakat Indonesia. Tanaman ini dapat digunakan untuk bumbu masakan dan obat herbal. Tujuan kajian ini adalah untuk menduga umur simpan lengkuas segar dengan menggunakan model Arrhenius. Lengkuas segar yang baru dipanen dibersihkan dan dipotong-potong dengan ukuran 2cm, kemudian disimpan pada suhu 5, 10 dan 28°C. Evaluasi dilakukan oleh 25 orang panelis dengan menggunakan skala hedonic dari sangat suka sampai sangat tidak suka terhadap warna, kesegaran, aroma dan tekstur. Parameter yang diamati adalah kadar air dan kadar sari larut dalam air. Parameter tersebut diamati dalam interval 3 hari selama 21 hari atau sampai sampel dinyatakan tidak disukai oleh panelis pada salah satu kriteria hedoniknya. Hasil penelitian menunjukkan bahwa pad asuhu 28°C, lengkuas dapat disimpan selama 3 hari, sedangkan pada suhu 10 dan 5°C, lengkuas dapat disimpan selama 12 dan 21 hari. Energi aktivasi (EA) dan tingkat perubahan mutu (Q10) karena kadar sari larut dalam air lebih besar dari energi aktivasi (EA) dan tingkat perubahan mutu (Q10) karena kadar air lengkuas. Namun demikian, kedua parameter tersebut tidak tepat digunakan untuk menduga umur simpan lengkuas. Shelf-Life Prediction of Galanga by Using Arrhenius Model Based on Its Moisture and Water Soluble Extract Content Abstract. Galanga (Alpinia galanga) is one of important plants for Indonesian people. It can be used as spices and also as herbal medicine. The aim of this study is to predict the shelf-life of fresh galanga by using Arrhenius model. Fresh harvested galanga, which was cleaned and chopped at width about 2 cm, was stored at temperatures 5, 10, and 28°C. The evaluation was done by 25 respondents by using hedonic scale from the range of like very much until dislike very much. This hedonic evaluation was assessed, based on colour, freshness, aroma, and texture. Parameters observed were moisture and water soluble extract content. These parameters observed at interval 3 days for 21 days or until the samples were rejected by respondents for at least one of hedonic factors. Results showed that at temperature 28°C, galangal can be stored for 3 days. However, at temperature 10 and 5 °C, galangal can be stored for 12 and 21 days, respectively. The energy act ivation (EA) and the rate of quality change (Q10) due to water soluble extract were higher than those of water content. Nevertheless, these two parameters cannot be used in prediction the shelf-life of fresh galanga.
Rancang Bangun Unit Penghasil Asap Cair yang Terintegrasi dengan Pengering Kabinet
Authors: Syah Hendri , Hartuti Sri , Juanda Juanda
Published: June 2023

Abstrak. Pemanfaatan energi panas buangan dari proses kondensasi asap cair belum banyak diaplikasikan, selama ini panas dibuang ke media air yang disirkulasikan. Penelitian ini bertujuan untuk mendesain dan menguji fungsional unit penghasil asap cair yang terintegrasi dengan pengering kabinet. Penelitian ini terdiri dari tiga tahapan yaitu perancangan (desain struktural dan fungsional), pabrikasi, dan uji fungsional hasil rancangan. Perekayasaan ini menghasilkan unit penghasil asap cair yang terintegrasi dengan pengering kabinet. Alat ini terdiri dari empat komponen utama yaitu tabung pirolisator, pipa penukar panas, pengering kabinet serta kondensor. Berdasarkan uji fungsional, alat ini telah dapat menghasilkan asap cair dengan volume berkisar antara 2300 – 3182 ml selama 5 jam proses pembakaran tempurung kelapa. Wadah 1 merupakan wadah yang paling banyak menampung asap cair dibandingkan wadah 2, hal ini menunjukan proses kondensasi lebih banyak terjadi pada pipa penukar panas Design and Construction of Machine for Liquid Smoke Production Integrated with Cabinet DryerAbstract. Utilization of released heat energy from the condensation of liquid smoke has not been widely applied. Recently, the heat generated from the process was discharged and circulated into water as a cooling media. This research aimed to design and test a functional of liquid unit integrated with a dryer cabinet. The study consisted of three steps including design (structural and functional design), manufacturing, and testing a functional of results designed. This research and development produced liquid smoke integrated with the dryer cabinet. This machine consisted of four main components including tube of pirolisator, heat exchanger, condenser and dryer cabinet. Based on the functional test, this machine had been able to produce liquid smoke, ranged from 2300 to 3182 ml for 5 hours burning process of coconut shells. The first container was a container that received much more liquid smoke compared with the second container 2.  This research revealed that condensation process occurs more frequently in the heat exchanger pipe.
Estado de salud bucal de mujeres privadas de su libertad del Centro penitenciario Buen Pastor en Asunción Paraguay -2021
Authors: Zárate Noemí , Noguera Paula , Zacarias+ Ana , González Cristina , Recalde Rocío , Giosa Gelda
Published: June 2023

Las personas privadas de libertad son susceptibles a la formación de caries e infecciones periodontales debido a la reclusión. El objetivo del estudio fue determinar el estado de salud bucal de mujeres privadas de libertad del Centro Penitenciario, Casa del Buen Pastor, Asunción, Paraguay en noviembre del 2021. El estudio fue descriptivo, cuantitativo de corte transverso. Fue realizado por alumnos de Odontología de la Facultad de Ciencias Biomédicas de la Universidad del Norte. Incluyó a mujeres privadas de su libertad en el Centro penitenciario Casa del Buen Pastor de Asunción-Paraguay, mayores de 18 años, con consentimiento informado y residencia mayor de 6 meses en el centro de reclusión. Las variables sociodemográficas fueron registradas en una ficha clínica dental redactada según los objetivos trazados en el trabajo de investigación mediante encuestas. Se realizaron sesiones educativas de promoción y prevención de la salud bucal. De las 193 mujeres privadas de libertad encuestadas e inspeccionadas, 33 (17%) superaban los 50 años, las demás eran jóvenes entre 18 y 40 años. Provenían de Gran Asunción 102 (53%); tenían educación secundaria 59 (31%) y 6 (3%) educación terciaria. La mayoría de las inspeccionadas, presentaron dientes cariados, perdidos y obturados (CPO); 123 (64%) presentaron un índice CPO alto, 54 (28%) regular y 15 (8%) bajo. Se observaron alteraciones en tejidos periodontales, como agrandamiento gingival, recesiones, manchas en la mucosa, úlceras y fístulas.
New records of brachiopods from the Lower Miocene deposits of the Qom Formation of the Isfahan province, Central Iran
Authors: Bitner Maria Aleksandra , Bahrami Ali , Josheghani Mansooreh Sani , Yazdi Mehdi , Zágoršek Kamil
Published: June 2023

The study presents new records of brachiopods from the Lower Miocene deposits of the Qom Formation from two sections, Bagh and Ramsheh in the Isfahan province, Central Iran. Three species, i.e. Argyrotheca bitnerae, Joania cordata, and Platidia anomioides, have been identified in the investigated material. All species are present in the Bagh section whereas in the material from Ramsheh A. bitnerae was not found. Although the species recognized here were already described from the Miocene of the Qom Formation, this is their first report from the localities of Bagh and Ramsheh, providing new data on the distribution of brachiopods in the Cenozoic of Iran.
Análisis de la problemática ambiental en Villa de la Paz-Matehuala-Cerrito Blanco, San Luis Potosí
Authors: Hernández-Martínez Jejanny Lucero , Mendoza-Chávez Yadira Jazmín , Romero Francisco Martín , Martínez-Villegas Nadia
Published: June 2023

El suelo de Villa de la Paz y Matehuala, en San Luis Potosí, México, se encuentra contaminado por metales pesados. La responsable de la contaminación en Villa de Paz ha sido la industria minera, mientras que la industria metalúrgica lo ha sido en Matehuala. En éste último, la contaminación por As ha incluso llegado a impactar el agua subterránea del acuífero somero. El agua subterránea contaminada llega a la localidad de Cerrito Blanco y es utilizada para uso de la población (irrigación de cultivos, pasto y actividades recreativas). La zona de interés (Villa de la Paz, Matehuala y Cerrito Blanco) ha sido estudiada para determinar la afectación al suelo, al agua y a la salud de la población. En este trabajo se realizó una búsqueda sistemática de la literatura publicada disponible. La literatura fue gestionada y evaluada de acuerdo a la metodología propuesta por la EPA en el año 2012 que comprende los siguientes factores: sólidez, aplicabilidad y utilidad, claridad e integridad, incertidumbre y variabilidad y evaluación y revisión. Los trabajos que aprobaron dichos factores de evaluación fueron utilizados para analizar y sintetizar la información. El estudio de la zona de interés comenzó hace 25 años. A lo largo del tiempo, se ha encontrado contaminación del suelo de Villa de la Paz por la presencia de la industria minera, así como exposición de la población a Pb y As. También, se han encontrado altas concentraciones de As en el agua subterránea de un acuífero somero en Matehuala que llega a Cerrito Blanco a través de un sistema de lumbreras. Mientras la contaminación del suelo se atribuye principalmente a la industria minera, la contaminación del agua subterránea se atribuye a la industria metalúrgica, donde la movilidad del As presente en el suelo está controlada por procesos de disolución/precipitación de arseniatos metálicos. Sin embargo, la contaminación tiende a reducirse de 91.5 mg/L de As a 11.2 mg/L a lo largo de 1.3 km atribuyéndose esto a dos procesos: dilución y atenuación natural vía el ascenso capilar del agua subterránea. El último proceso resulta interesante de estudiar a mayor profundidad, así como la continuidad de la investigación que versa en la remediación del suelo y el agua subterránea. Al tratarse de un sitio con suelos altamente contaminados con As, ricos en Ca (ambiente semiárido) y bajas concentraciones de oxihidróxidos de hierro la información generada hasta ahora puede dar oportunidad a replicar los métodos empleados en otros sitios con características semejantes.
Estimación espacio-temporal de la distribución de la recarga potencial en el Valle de Toluca
Authors: Rodríguez-Campero Cecilia , Garfias Jaime , Martel Richard , Navarro-de León Ignacio
Published: June 2023

El cálculo de la recarga potencial es un aspecto esencial en la gestión de recursos hídricos, planeación del desarrollo urbano/agrícola y la definición de las tasas de bombeo, a fin de prevenir o mitigar la sobreexplotación de acuíferos. En el Valle de Toluca, las altas tasas de extracción han inducido descensos piezométricos acompañados de un desbalance hídrico, al rebasar el volumen de recarga media anual. En este estudio, se desarrolló un balance de humedad del suelo a paso de tiempo 24 horas para la estimación de la recarga potencial histórica y futura. El periodo de análisis comprende de 1980 a 2021, y una proyección hasta 2050 con base en tres escenarios probables de precipitación, temperatura y crecimiento urbano. Los resultados indican un volumen promedio anual de recarga de 369.5 Mm3 con una tasa de 174.5 mm/año, alcanzando los 355.7 mm/año en épocas húmedas. La distribución espacial sugiere una recarga condicionada mayormente por la climatología en las zonas montañosas, mientras que, en el centro del Valle, se asocia con la modificación del uso del suelo. La expansión de la mancha urbana se posiciona como factor preponderante en el aumento de la escorrentía y el gradual decremento de la intercepción y la evapotranspiración real. La disminución en la recarga es una constante en los potenciales escenarios de recarga futura, en comparación con el histórico promedio, se proyecta un cambio negativo de 16.59%, 19.99% y 22.61% para los escenarios bueno, moderado y malo respectivamente. Las tasas de recarga potencial obtenidas constituyen un parámetro inicial en modelos de flujo y análisis regionales de la cuenca.
El magnetismo y el color como indicadores de cambios en el suelo por quema agrícola
Authors: Iniesta-Martínez Lizeth , García-Ruiz Rafael , Sánchez Rufo , Goguitchaichvili Avto , Bautista Francisco
Published: June 2023

La quema agrícola es una práctica común en las plantaciones de caña de azúcar en México, se le atribuyen efectos positivos y negativos sobre el suelo. Sin embargo, no existe un consenso sobre los cambios que provoca la quema del suelo, por lo que es necesario estudiar este fenómeno a través de indicadores de bajo costo y rápido análisis. Las técnicas magnéticas y de color pueden ser métodos indirectos, rápidos y económicos que pueden ayudar a comprender los cambios químicos que la quema agrícola provoca en los suelos. Este trabajo tuvo como objetivo evaluar el color y la susceptibilidad magnética como indicadores de cambio en el suelo por efecto de la quema agrícola. El estudio se realizó en un Vertisol cultivado con caña de azúcar en Tabasco, México. Se tomaron muestras de suelo en diez sitios dentro de la parcela, en cada sitio se colectaron muestras cada dos centímetros hasta 20 cm de profundidad del suelo, antes y después de la quema agrícola. En total se analizaron 200 muestras de suelo. Durante las quemas, se registraron las temperaturas del suelo a 0, 2 y 5 cm de profundidad. Los parámetros e índices de color se analizaron con el sistema CIE-L*a*b*, y la susceptibilidad magnética de alta y baja frecuencia se midieron con un equipo Bartington MS2. Después de la quema agrícola, los suelos mostraron un aumento de los tonos oscuros a cuatro centímetros de profundidad. Los parámetros magnéticos también mostraron cambios en el suelo para los 4 cm de profundidad después de la quema agrícola. Los resultados muestran que el color y la susceptibilidad magnética son propiedades del suelo eficientes para identificar las modificaciones del suelo causadas por la quema agrícola. En este estudio de caso, el efecto de la quema agrícola en los cultivos de caña de azúcar fue de corto plazo y superficial en el Vertisol.
Association of Umbilical Cord Igg Covid Antibody Levels with Maternal Factors
Authors: Manavalan Devassy Dr. Brinda , George Dr Maria , Julia Dr. Sr.
Published: June 2023

Background: The transmission of SARS-CoV-2 from mother to fetus and the development of protective antibodies in newborns are critical aspects of maternal and neonatal care during the COVID-19 pandemic. Understanding the association between umbilical cord IgG COVID-19 antibody levels and maternal factors, including gestational age of acquiring infection, COVID-19 clinical category, and immunization status, can provide insights into neonatal immunity and guide strategies for optimizing maternal and neonatal care.

Methods: This study aimed to investigate the association between umbilical cord IgG COVID-19 antibody levels and maternal factors in a cohort of pregnant women with confirmed SARS-CoV-2 infection. Maternal data, including gestational age of acquiring infection, COVID-19 clinical category, and immunization status, were collected. Umbilical cord blood samples were obtained at delivery, and IgG COVID-19 antibody levels were measured using standardized assays. Statistical analyses were performed to assess the associations between maternal factors and neonatal antibody levels.

Results: Preliminary results showed that gestational age of acquiring infection was positively associated with umbilical cord IgG COVID-19 antibody levels (p<0.001). Neonates born to mothers infected in the third trimester had significantly higher antibody levels compared to those infected in the first or second trimesters. Additionally, there was a significant positive correlation between COVID-19 clinical category and umbilical cord IgG antibody levels, with more severe maternal illness associated with higher neonatal antibody levels. Maternal immunization status also demonstrated a positive association with umbilical cord IgG COVID-19 antibody levels, indicating that vaccinated mothers had higher levels of antibodies transferred to their infants.

Conclusion: This study highlights the association between umbilical cord IgG COVID-19 antibody levels and maternal factors, including gestational age of acquiring infection, COVID-19 clinical category, and immunization status. The findings suggest that infection in the third trimester, more severe maternal illness, and maternal immunization are associated with higher levels of neonatal antibodies. These results have important implications for understanding neonatal immunity and guiding maternal and neonatal care during the COVID-19 pandemic. Further research with larger cohorts is warranted to validate these findings and inform evidence-based strategies for optimizing maternal and neonatal outcomes.
Morphobiological features of generative organs of fertile and sterile table beet plants and their variability as a result of self-pollination (review)
Authors: Vetrova S. A. , Kozar E. G. , Fedorova M. I.
Published: June 2023

Beet is considered a difficult breeding object due to its biological peculiarities that make it difficult to obtain hybrid seed progeny. In cross-pollinated crops, the maximum hybridization is achieved by using sterile mother plants, which are extremely rare in the nature. Inbreeding is one of the ways to isolate genotypes with cytoplasmic male sterility, which are controlled by recessive alleles of nuclear genes and S-factor of mitochondrial DNA, from a complex heterogeneous population. The main distinguishing features allowing to identify plants with male sterility are the structure and coloring of anthers, and the quality composition of pollen. The diversity of phenotypic manifestation of marker coloration in sterile anthers is determined by the ratio of different pigments. Diversity of pollen grains of fertile and sterile plants is caused by differences in their development at the late stages of androgenesis. The degree of sterilization varies in different genotypes, which is associated with complex regulatory mechanisms of interaction between the genetic apparatus of the nucleus and the cytoplasm. Along with abnormalities of pollen grain micropopulations, self-fertilization results in morphological changes in the structure of inflorescences and number of flower organs, which has a direct impact on the seed productivity of plants. The studies summarized in this publication are relevant and essential for the search of effective ways to control plant development in ontogenesis and universal selection criteria in the process of creating fundamentally new forms of plants, which is especially important for breeding.
Evaluation of melon varieties by valuable economic characteristics in the conditions of the Volgograd Volga Region
Authors: Kornilova M. S. , Ryabchikova N. B.
Published: June 2023

Relevance. The main direction of breeding melon Bikovskaya cucurbits breeding experimental station – branch of the FSBSI FSVC is the creation of varieties with valuable economic characteristics, especially with resistance to bioand abiotic environmental factors. To meet the needs of commodity producers and the population, varieties are needed not only with high yields, but also attractive appearance, good taste qualities. Very important: the rich color of the bark background, the proportional shape of the fruit and the sweet juicy pulp.

Materials and methods. The research was carried out in 2020–2022 at the Bikovskaya cucurbits breeding experimental station – branch of the FSBSI FSVC. The object of research is melon varieties created over the past five years. The Osen variety was used as a standard. The main method of selection work with melon is intervarietal hybridization followed by individual selection.

Results. Melon varieties were evaluated according to valuable economic characteristics, 6 best varieties were identified in comparison with the standard. In terms of yield, 2 varieties were distinguished (16.3 t/ha and 17.3 t/ha); in terms of dry matter content, 2 varieties (19%); in terms of large-fruited 1 variety (6.0 kg); in terms of the bright color of the bark background, 1 sample (bright yellow).
Impacts of climate change on vegetable production and ways to overcome them
Authors: Bukharov A. F. , Fedosov A. Yu. , Ivanova M. I.
Published: June 2023

Vegetables play a key role in food security and nutrition as the food system shifts from food quantity to dietary quality and health benefits. One of the main reasons for the low production and declining average yields of most vegetable crops is climate change. Important limiting factors in maintaining and increasing vegetable crop yields are rising temperatures, reduced water availability for irrigation, flooding and salinity. Under changing climatic conditions, crop failures, declining quality and increasing pest and disease problems are becoming commonplace and making vegetable production unprofitable. Since many physiological processes and enzyme activity are temperature dependent, they will be greatly affected. Drought and salinity are two important effects of rising temperatures that reduce vegetable crop yields. These impacts of climate change also affect the emergence of pests and diseases, host-pathogen interactions, distribution and ecology of insects, timing of emergence, migration to new locations, and their ability to overwinter, all of which become a major barrier to vegetable production. To mitigate the adverse effects of climate change on the productivity and quality of vegetable crops, sound adaptation strategies need to be developed. Emphasis should be placed on the development of production systems that improve water efficiency and are adapted to hot and dry conditions. Technological practices, such as mulching with crop residues and plastic materials, help maintain soil moisture. Excessive soil moisture due to heavy rains becomes a serious problem that can be solved by growing crops in raised beds. An effective way to solve these problems is to create genotypes that are resistant to high temperatures, moisture, salinity and resistance to climatic conditions, using traditional and non-traditional breeding methods, genomics, biotechnology, etc.
Breeding work on new potato genotypes under the conditions of Primorsky Kray
Authors: Voznyuk V. P. , Anikina O. V. , Kim I. V.
Published: June 2023

Relevance. Potato is one of the most important agricultural crops used for various purposes. Its tubers are an essential food product for many people worldwide. The development of breeding technologies and an accelerated marketing of new promising potato genotypes play a significant role in the industry of potato production today. FSBSI “FSC of Agricultural Biotechnologies of the Far East named after A.K. Chaiki” conducted a complex study on potato hybrids.

The research goal was to evaluate and select promising potato hybrids with high yield, marketability, and resistance to the most dangerous diseases. The experiments were carried out in our breeding nurseries located at Putsilovka v., Ussuriysk district, in the Kazachka river valley. Hybrids Purple potato × Manifest and (Aspiya×Qusto) × Manifest were used as the research object. The methodology of FSBSI “N. I. Vavilov All-Russian Institute of Plant Genetic Resources” and FSBSI “Russian Potato Research Center” were employed for the trials of the material. Fifty-two potato varieties from different maturity groups were used as pollen sources.

Results. As the result, seventy-one hybrid combinations were created, 2272 flowers were pollinated, and 640 potato fruits were obtained. The efficiency of the crossing was 28.2%. Hybrids Pri15-12-23 Purple potato × Manifest and Pri-15-15-7 (Aspiya×Qusto) × Manifest had the highest rate of potato fruit formation. These accessions were characterized by good taste and high yield (48.7-51.0 t/ha), starch content (13.9-16.3 %), and vitamin C (15.0-15.4 mg/100 g). Tubers of these genotypes were oblong-oval or round with yellow flesh and small eyes. The studied accessions showed resistance to the main plant pathogens of the Russian Far East. Currently the obtained genotypes are tested for resistance to potato wart disease (S. Endobioticum, Dahlem pathotype) in the State variety trials. These accessions generate significant interest for breeding.
Influence of chelated microfertilizers on growth processes and yield of table watermelon under agricultural conditions of the Volgograd Volga region
Authors: Galichkina E. A. , Nadezhkin S. M.
Published: June 2023

Relevance. The Volgograd region is a region of risky farming. In the spring-summer period, the cultivated crop (melons) is often exposed to stress factors: spring frosts, abnormal heat, temperature changes, which negatively affects the growth and development of plants. In this regard, it is necessary to develop new adaptive agrotechnical methods for the cultivation of melons and gourds in order to obtain stable yields of high quality.

Material and methodology. The object of research is watermelon, variety Meteor. Water-soluble fertilizers were studied – Helaton Extra and Aquarin vegetable for soaking seeds before sowing and foliar treatment of plants during the growing season.

Results. During the research period of 2019-2021, new types of microfertilizers were studied.

When using preparations Aquarin vegetable and Helaton Extra for different methods of processing, a positive effect on the growth and development of table watermelon plants, as well as on the increase in the leaf plate, was noted. Helaton Extra for soaking seeds and treating plants had the maximum impact on the growth processes of early table watermelon. As a result of the research, the yield of the studied variety also increased. The average weight of the fetus in all variants increased compared to the control variant by 2.7-5.3%. The length of the growing season in all variants increased from 2 to 4 days, which favorably affected the increase in yield. Comparative analysis of growth processes and productivity of watermelon variety Meteor when using new forms of water-soluble fertilizers for seed soaking and foliar treatment of plants showed greater efficiency from their use.