bluuebunny/crossref_metadata_2025 huggingface dataset:
Larvacide Activity of Bungur Plants (Lagerstroemia loudonii T. & B.)
Authors: Faramayuda Fahrauk , Hermanto Faizal , Windyaswari Ari Sri , Riyanti Soraya , Nurhayati Viola Aditya
Published: July 2022

The prevalence of DHF, especially in Indonesia, is still high. Dengue Hemorrhagic Fever (DHF) is a disease transmitted by the Aedes aegypti species mosquito vector. Therefore, reducing the incidence of DHF requires efforts to break the chain of transmission by inhibiting the growth of the Aedes aegypti mosquito vector. One of the plants that can inhibit the growth of A. aegypti mosquito larvae is the bungur plant. This study aimed to determine the larvicidal activity of ethanol extract of leaves, bark, stems, and fruit of bungur (Lagerstroemia loudonii T. & B.) against A. aegypti larvae. Extraction process used maceration method with 96% ethanol solvent. Phytochemical screening results showed that the ethanol extract of bungur leaves and fruit contains alkaloids, flavonoids, saponins, quinones, tannins, polyphenols, monoterpenoids, and sesquiterpenoids as well as steroids and triterpenoids, whereas in the ethanol extract bungur bark and stems contains alkaloids, flavonoids, saponins, quinones, tannins, polyphenols, monoterpenoids, and sesquiterpenoids. LC50 values of ethanol extract of leaves, bark, stems, and bungur fruit were 374.64 ± 11.88 µg/mL, 396.70 ± 3.99 µg/mL, 425.80 ± 8.15 µg/mL, and 312.54 ± 2.24 µg/mL, consecutively. The results showed that the ethanol extract of the leaves, bark, stems, and fruit of bungur could inhibit the growth of A. aegypti larvae. Ethanol extract of bungur fruit has the best larvicidal activity compared to other test extracts.
DESAIN TAPAK DAN STRATEGI PENGEMBANGAN ODTW DANAU UNGU DI KELURAHAN CEMPAKA
Authors: Hidayat Rahmat , Fithria Abdi , Rianawati Fonny
Published: July 2022

This research aims to identify the potential and tourist attractions in Cempaka Village by examining the preferences and perceptions of the parties towards tourism development as well as compiling recommendations for tourism development strategies and making site designs for tourist attractions in Cempaka Village. This research conducted was research in Cempaka Village, Cempaka Subdistrict, Banjarbaru City, South Kalimantan for 3 months. Analyze data utilizing SWOT. The outcomes showed that travel industry in Cempaka Town is Lake Ungu, the advancement methodology for Lake Ungu from the aftereffects of the investigation of interior and esternal variables of Lake Ungu, specifically 1.95 and 1.75 which are in quadrant II this position shows solid. be that as it may, faces incredible difficulties. The Telaga Ungu site configuration utilizes the idea of the travel industry which gives an assortment of visits in a single traveler area.Penelitaian ini bertujuan untuk mengidentifikasi potensi dan daya tarik wisata di Kelurahan Cempaka dengan mengkaji preferensi dan persepsi para pihak terhadap pengembangan wisata serta menyusun rekomendasi strategi pengembangan wisata dan membuat desain tapak objek daya tarik wisata di Kelurahan Cempaka. Penelitian ini dilakukan di Kota Cempaka, Wilayah Cempaka, Kota Banjarbaru, Kalimantan Selatan Selam 3 bulan. Analisis data menggunakan SWOT. Hasil penelitian menujukan wisata yang terdapat di Kelurahan Cempaka yaitu Danau Ungu, Strategi pengembangan untuk Danau Ungu dari hasil analisis faktor internal dan eksternal Danau Ungu yaitu 1,95 dan 1,75 yang Berada di kuadran II posisi ini menunjukkan solid namun menghadapi kesulitan besar. Desain tapak Danau Ungu menggunakan konsep wisata yang memberikan beragam wisata di dalam satu lokasi wisata
ANALISIS TINGKAT BAHAYA EROSI DI DAS MALUKA DENGAN SISTEM INFORMASI GEOGRAFIS (SIG)
Authors: Akbar Ilmi , Indrayatie Eko Rini , Badaruddin Badaruddin
Published: July 2022

Analysis of Erosion Hazard Levels using Geospatial Information Systems in a watershed needs to be known so that it does not become dangerous, especially in the Maluka watershed. This study aims to determine the level of erosion hazard in the Maluka watershed using the USLE (equationUniversal Soil Loss Equation), calculate the rate of erosion and determine the level of erosion hazard using Geographic Information System (GIS). The calculation of the erosion rate in this study ranged from 36.83 tons/ha/year to 3,339.71 tons/ha/year. The type of soil with the highest erosion rate is alluvial type with Open Land Cover (OLC) on steep slopes of 3,339.71 tons/ha/year. While the type of soil with the lowest erosion rate is the type of red yellow pedsolic with Plantation Land Cover (PLC) on flat slopes of 36.83 tons/ha/year. The Erosion Hazard Level (EHL) of the Maluka watershed in this study was grouped into low, medium to high. The level of Erosion Hazard on the low criteria has an area of 3,370.44 ha, on the medium criteria it has an area of 402.92 ha, and on the high criteria it has an area of 6.00 ha. From the observed land units, it was found that EHL in the Maluka watershed was dominated by low criteria, namely plantation land cover. Meanwhile, with high EHL criteria, the total area is low, namely in open land cover.Analisa Tingkat Bahaya Erosi menggunakan Sistem Informasi Geospasial dalam suatu DAS perlu diketahui agar tidak menjadi membahayakan, khususnya di DAS Maluka. Penelitian ini bertujuan untuk menentukan tingkat bahaya erosi di DAS Maluka menggunakan persamaan USLE (Universal Soil Loss Equation), menghitung besarnya laju erosi  serta menentukan tingkat bahaya erosi menggunakan Sisten Informasi Geografis (SIG). Perhitungan nilai laju erosi pada penelitian ini berkisar antara 36,83 ton/ha/thn sampai dengan 3.339,71 ton/ha/thn. Jenis tanah dengan nilai laju erosi terbesar ialah jenis alluvial dengan penutupan lahan terbuka (LTK) pada kelerengan curam yaitu sebesar 3.339,71 ton/ha/thn. Sedangkan jenis tanah dengan nilai laju erosi terendah ialah jenis tanah pedsolik merah kuning dengan penutupan lahan perkebunan (PKB) pada kelerengan datar yaitu sebesar 36,83 ton/ha/thn. Nilai Tingkat Bahaya Erosi (TBE) dari DAS Maluka pada penelitian ini dikelompokkan menjadi rendah, sedang hingga tinggi. Tingkat Bahaya Erosi pada kriteria rendah mempunyai luasan 3.370,44 ha, pada kriteria sedang mempunyai luasan 402,92 ha, dan pada kriteria tinggi mempunyai luasan 6,00 ha. Dari satuan lahan yang diamati, didapatkan hasil bahwa TBE di DAS Maluka didominasi oleh kriteria rendah yaitu pada penutupan lahan perkebunan. Sedangkan, pada kriteria TBE tinggi, total luasannya rendah yaitu pada penutupan lahan terbuka
IDENTIFIKASI KERUSAKAN BANGUNAN AKIBAT KUMBANG PERUSAK KAYU DI KOMPLEK BINCAU INDAH 1 DESA BINCAU KECAMATAN MARTAPURA KABUPATEN BANJAR
Authors: Humaidi Muhammad , Satriadi Trisnu , Ulfah Diana
Published: July 2022

The damage of buildings by the wood-destroying beetle to be identified to prevent its more rapid spread. The purpose of this study was to identify the level of damage of buildings and to identify wood destroying beetles in buildings in the Komplek Bincau Indah 1, Bincau Village, Banjar Regency, South Kalimantan. The method used in this study is a descriptive method to describe the actual situation about the object under study with direct observation and interview techniques. The samples taken were the houses of residents who were attacked by wood-destroying beetle as many as 36 samples. The captured beetles are then preserved to identify their species. The level of damage to buildings is divided into 3 levels, namely light damage 36.11%, moderate damage 58.33% and severe damage 5.55%. The average intensity of damage to the girder is 11.52%, the rafters are 11.66%, the truss is 11.52% and the frame is 3.33%, while the ceiling and door are not damaged (0%). The average attack rate of beetles that attack the Komplek Bincau Indah 1 in Bincau Village is 16.77%. There are two types of beetles that damage buildings in this study, namely Eastern carpenter bee (Xyocopa virginica) and the thread-waisted bee (Ammophila sp). The more dominant Eastern carpenter bee damage parts of the buildingKerusakan bangunan akibat kumbang perusak kayu dapat berpotensi secara serius sehingga perlu diidentifikasi untuk mencegah penyebaran yang lebih cepat. Tujuan pada  penelitiaan ini yaitu untuk mengidentifikasi tingkat kerusakan pada bangunan serta mengidentifikasi kumbang perusak kayu pada bangunan di Komplek Bincau Indah 1 Desa Bincau, Kab. Banjar, Kalimantan Selatan. Metode yang di gunakan pada penelitian ini adalah metode deskriptif untuk mengambarkan keadaan yang sebenarnya tentang objek yang diteliti dengan teknik observasi dan wawancara secara langsung. Sampel yang diambil ialah rumah warga yang terserang hama perusak kayu sebanyak 36 sampel. Kumbang yang ditangkap lalu diawetkan untuk diidentifikasi jenisnya. Tingkat kerusakan bangunan terbagi menjadi 3 tingkatan, yaitu kerusakan ringan 36,11%, kerusakan sedang 58,33% dan kerusakan parah 5,55%. Rata-rata intensitas kerusakan pada bagian gelagar 11,52%, bagian kasau 11,66%, bagian kuda-kuda 11,52% serta bagian kusen 3,33%, sedangkan pada plafon dan pintu tidak mengalami kerusakan (0%). Rata-rata tingkat serangan kumbang yang menyerang di Komplek Bincau Indah 1 Desa Bincau sebesar 16,77%. Jenis Kumbang yang merusak bangunan pada penelitian ini ada dua jenis kumbang yaitu Lebah Tukang Kayu (Xyocopa virginica) dan Lebah Berpinggang Benang (Ammophila sp). Lebah tukang kayu yang lebih dominan merusak bagian bangunan
Mapping of Teak (Tectona grandis) Growing Stock Volume based on Sentinel-2 Imagery Classification
Authors: Larasati Bekti
Published: July 2022

Remote sensing utilization for plantation forests management in Java was not yet widely used, whereas the ability of remote sensing data for land cover monitoring and forest resource mapping has been developed, ranging from low resolution imagery for global areas to moderate and high resolution for small scale areas. Data availability and human resources often become obstacles in the application. The emergence of Sentinel satellite images becomes an alternative because the dataset is free access and has moderate spatial resolution and high temporal resolution. This study aims to map the growing stock volume in UGM Educational and Training Forest using Sentinel-2 imagery. Three kinds of classification method based on machine learning algorithms i.e. Random Forest, K-NN and SVM were compared for land cover classification. An NDVI algorithm was also used for mapping the spectral value distribution. Moreover, a stand age distribution which obtained from KHDTK UGM manager were also map. A stand classification map based on land cover types, NDVI value and stand age distribution was created as a basis of growing stock volume estimation. The analysis show that the growing stock volume can be estimated using these method with RMSE 177,8 m3 and MAPE 21,9 m3.
KAJIAN BANJIR DI SUB DAS BATI-BATI DAS MALUKA KABUPATEN TANAH LAUT
Authors: Ummah Saidatul , Kadir Syarifuddin , Naemah Dina
Published: July 2022

Flooding has the potential to pose a danger to the human life and environment, and so it is necessary to conduct a flood study. This study have a purpose to identify the frequency of floods and determine the direction of flood recovery qualification in sub-watershed Bati-Bati Maluka Watershed Tanah Laut Regency. Village selection is done Purposive sampling which is a village that often experiences flood events, 6 villages in two sub-districts with the number of respondents as many as 80 respondents. Data analysis was conducted to establish the classification of watersheds in the research area, namely flood frequency data obtained from flood disaster event reports and direct observations. Then, the results of the study are presented in a descriptive analysis. The study of flood events in sub-watershed Bati-Bati Maluka Watershed Tanah Laut is the frequency of floods that occur in Bati-Bati subdistrict occurs flooding 1 time in a period of 2 years, with the duration of flooding that occurs is < 1 month and the average height of flood inundation 0.5 -1 meter. Meanwhile, in Kurau sub-district flooded once in a period of 2 years, with the duration of the flood that occurred is 1-2 months and the average height of flood puddles 0.5 - 1 meter. Recovery qualifications in Bati-bati and Kurau subdistricts are needed which can be done with two programs, namely long and short termBanjir dapat berpotensi menimbulkan kerusakan terhadap kehidupan manusia dan lingkungan, sehingga kajian banjir perlu dilakukan. Tujuan dari penelitian ini ialah untuk mengidentifikasi frekuensi banjir serta menentukan arahan kualifikasi pemulihan banjir di Sub DAS Bati-Bati DAS Maluka Kabupaten Tanah Laut. Pemilihan desa untuk lokasi penelitian dilakukan dengan metode Purposive sampling yaitu desa yang sering mengalami kejadian banjir, 6 desa di dua Kecamatan dengan jumlah responden sebanyak 80 responden. Analisis data dilakukan untuk menetapkan klasifikasi DAS di wilayah penelitian dengan pengamatan langsung untuk mengetahui data frekuensi banjir yang diperoleh dari laporan kejadian bencana banjir. Kemudian, hasil penelitian disajikan secara analisis deskriptif. Kajian Kejadian Banjir Di Sub DAS Bati-Bati DAS Maluka Kabupaten Tanah Laut ialah frekuensi banjir yang terjadi di Kecamatan Bati-Bati terjadi banjir 1 kali dalam kurun waktu 2 tahun, dengan lama banjir yang terjadi yaitu < 1 bulan dan  rata-rata tinggi genangan banjir 0,5 – 1 meter. Sedangkan, di Kecamatan Kurau banjir 1 kali dalam kurun waktu 2 tahun, dengan lama banjir yang terjadi yaitu 1 – 2 bulan dan rata-rata tinggi genangan banjir 0,5 - 1 meter. Kualifikasi Pemulihan di Kecamatan Bati-bati dan Kecamatan Kurau yang diperlukan ialah sedang yang dapat dilakukan dengan dua program yaitu jangka panjang dan jangka pendek.
DAMPAK PANDEMI COVID-19 TERHADAP PENDAPATAN PETANI KARET DI DESA AMBAWANG KECAMATAN BATU AMPAR
Authors: Sari Apriliawati Yunita Indah , Naparin Muhammad , Itta Daniel
Published: July 2022

The rubber plant (Hevea bransiliensis) is one of the plants that has a high enough economic value so that it can meet the living needs of most Indonesian people, but a virus was detected from Wuhan, China which then entered Indonesia in March 2020, which was identified as Covid-19. Pandemi of Covid-19 has an impact on various sectors in Indonesia, one of them is the economic sector. Ambawang village was the first village detected the Covid-19 virus in Tanah Laut Regency, thus causing little impact on the village. The purpose of this study is to compare farmers' income from rubber productivity before and during the Covid-19 pandemic. The method used is proportional stratified random sampling it uses 3 classes in the study and obtained a total sample of 165 as respondents. Data analysis used a statistical approach, namely the paired T-test. The results of this study indicate the average cost of each class in Ambawang village, namely for class 1 the average cost of rubber farmers is Rp.619,952, for class 2, which is Rp.1,275,124, while for class 3, it is Rp.4,356,986. Of the three classes in this study, after a parametric test using the Paired T-test showed that the Covid-19 pandemic has a significated impact on the income of rubber farmers.Tanaman karet (Hevea bransiliensis) adalah salah satu tanaman yang memiliki nilai ekomoni yang cukup tinggi sehingga dapat memenuhi kebutuhan hidup sebagian besar masyarakat Indonesia, namun terdeteksinya virus yang berasal dari Wuhan, China yang kemudian masuk ke Indonesia pada bulan Maret 2020 yang kemudian diketahui bahwa virus tersebut adalah Covid-19. Adanya Virus Covid-19 ini memberikan dampak diberbagai sektor di Indonesia salah satunya sektor ekonomi. Desa Ambawang adalah desa yang pertama kali terdeteksi adanya virus Covid-19 di Kabupaten Tanah laut, sehingga menimbulkan sedikit banyak pengaruh terhadap desa tersebut. Tujuan dari penelitian ini untuk membandingkan pendapatan petani karet dari produktivitas karet sebelum dan saat pandemi Covid-19. Metode yang digunakan yaitu proportionate stratified random sampling dalam pengambilan sampelnya karena meggunakan 3 kelas dalam penelitian dan didapat sampel keseluruhan 165 sebagai resoponden. Analisis data menggunakan pendekatan statistik yaitu uji parametik T-berpasangan. Hasil penelitian ini menunjukkan biaya rata-rata setiap kelas di Desa Ambawang yaitu untuk kelas 1 rata-rata biaya petani karet sebesar Rp.619.952, untuk kelas 2 yaitu sebesar Rp.1.275.124, sedangkan untuk kelas 3 yaitu sebesar Rp.4.356.986. Dari ketiga kelas dalam penelitian ini setelah dilakukan uji parametik menggunakan Uji T-Berpasangan menunjukkan hasil bahwa adanya pandemic Covid-19 memberikan dampak atau pengaruh yang signifikan terhadap pendapatan petani karet
SEBARAN TUMBUHAN ULIN (Eusideroxylon zwageri) DI KAWASAN HUTAN DENGAN TUJUAN KHUSUS (KHDTK) KINTAP PROVINSI KALIMANTAN SELATAN
Authors: Saputro Riski Dwi , Asyari Mufidah , Badaruddin Badaruddin
Published: July 2022

Ulin (Eusideroxylon zwageri) is a tree composed of wet tropical forests which is spread over almost the entire southern part of Sumatra, The Bangka-Belitung Islands and the entire Kalimantan region, this type of ironwood (Eusideroxylon zwageri) which is also known as belian and borneo iron wood, including one of the native tree species on the island of Borneo. The purpose of this study was to calculate the potential distribution of ironwood in the Kintap Special Purpose Forest Area (KHDTK). Mapping the distribution of ironwood found in the Kintap Special Purpose Forest Area (KHDTK) plot. The method used is the transect line method. The results of the potential distribution of ironwood at the tree level are 17 and have an IVI value of 168,45, for the pole level as much as 16 and has an INP value of 55,63, for the stake level there is 1 has an INP value of 6.14, there are 8 seedlings, which have an IVI value of 53,87. Ironwood plants are mostly located at an altitude of 50-65 m above sea level because of rare flooding and erosion, so that ironwood plants can grow well from an ecological aspect and ironwood grows well in tropical forestsUlin (Eusideroxylon zwageri) merupakan pohon yang tersusun dari hutan tropis basah yang tersebar dihampir seluruh wilayah Sumatera bagian selatan, Kepulauan Bangka-Belitung dan seluruh wilayah Kalimantan, jenis Ulin ini (Eusideroxylon zwageri) yang juga dikenal dengan nama belian dan kayu besi borneo, termasuk salah satu jenis pohon asli pulau Kalimantan. Tujuan dari penelitian ini yaitu menghitung potensi sebaran tumbuhan Ulin di Kawasan Hutan Dengan Tujuan Khusus (KHDTK) Kintap. Memetakan sebaran tumbuhan Ulin yang terdapat di Plot Kawasan Hutan Dengan Tujuan Khusus (KHDTK) Kintap. Metode yang dilakukan yaitu metode jalur transek . Hasil potensi sebaran tumbuhan Ulin yang paling banyak tingkat pohon sebanyak 17 dan memiliki nilai INP sebesar 31,06, untuk tingkat tiang sebanyak 16 dan memiliki nilai INP sebesar 55,63, untuk tingkat pancang ada 1 memiliki nilai INP sebesar 6,14, untuk tingkat semai ada 8 memiliki nilai INP sebesar 53,87. Tumbuhan Ulin sebagian besar berada pada ketinggian 50-65 m dari permukaan laut karena jarang terjadi banjir dan erosi sehingga membuat tumbuhan Ulin tersebut dapat tumbuh dengan baik dari aspek ekologi dan Ulin tumbuh dengan baik pada hutan tropis
ПРО ОДИН ПІДХІД ДО ФОРМАЛЬНОГО ОЦІНЮВАННЯ КВАЛІФІКАЦІЇ КРЕДИТНИХ АНАЛІТИКІВ КОМЕРЦІЙНОГО БАНКУ
Authors: Жуковська О. А.
Published: July 2022

Неефективне управління у сфері кредитування може призвести до суттєвих втрат і навіть банкрутства банку. Отже, для мінімізації можливих втрат фахівці банку мають провести кредитну оцінку платоспроможності потенційного позичальника на високому рівні. Цей факт і висока конкуренція банків у цій сфері призвела до широкого застосування скоринг систем. Водночас немає універсальної моделі кредитного скорингу і автоматизована система неспроможна зафіксувати підозрілу поведінку чи граничний стан клієнта. Таким чином, при прийнятті кредитного рішення доцільно спиратися не тільки на результати скоринг системи, але й на думку кваліфікованих експертів (кредитних аналітиків), що особливо важливо при зміні економічної ситуації. Тому побудована на байєсовських стратегіях класифікації формальна схема оцінки кваліфікації кредитного аналітика на основі наявної апріорної інформації є актуальною. Відповідно до запропонованого підходу для оцінки кваліфікації кредитних аналітиків проводиться їх тестування, використовуючи раніше відомі результати кредитних історій банку. Кандидату необхідно класифікувати колишніх позичальників банку, відносячи їх до одного з двох класів – благонадійний позичальник, який без проблем виконав умови кредитування або неблагонадійний позичальник, який повернув кредит у примусовому порядку. Якщо за результатами тесту середній ризик рішень кредитного аналітика менший за апріорний ризик рішень, які менеджер банку приймає лише на підставі знання ймовірностей появи благонадійних та неблагонадійних клієнтів, то кредитний аналітик вважається кваліфікованим. Також у статті наведено схему вибору найбільш кваліфікованих кредитних аналітиків у групу прийняття кредитного рішення на основі запропонованих формальних умов. Для практичного використання запропонованого підходу достатньо оцінити апріорні ймовірності благонадійних та неблагонадійних клієнтів у тестовій вибірці кредитних історій та умовні ймовірності помилок, які допускає потенційний кредитний аналітик при класифікації клієнтів банку з відомою кредитною історією. Надано модельний приклад, що ілюструє запропонований підхід.
The effect of thermal insulation of the lining on the heat exchange of rotating apparatuses
Authors: Shcherbyna Valerii , Shvachko Denys
Published: July 2022

Rotary kilns are used in many industries to process bulk raw materials. In the building materials industry, rotary kilns are widely used for heat treatment. However, the fuel utilization factor in rotary kilns is extremely low. Thus, the bulk of cement clinker is fired in furnaces, the thermal efficiency of which does not exceed 55-60%. Therefore, the task of increasing the efficiency of such units is extremely relevant. In operating furnaces, heat losses to the environment only through the furnace body reach 20-25% of the total heat of combustion. In this case, one of the main factors determining the thermal efficiency of furnace operation is the value of thermal resistance of lining.

The aim of the work is to study the evolution and temperature changes in the rotary kiln lining made of shaped refractory to reduce heat losses to the environment and improve the efficiency by increasing the thermal resistance of the lining. The increase in thermal resistance is achieved by changing the shape of the refractory by creating appropriate cells and introducing additional fibrous insulating material into them.

A mathematical model and software have been developed and numerical calculations have been carried out to determine non-stationary temperature fields in the lining with a thermal insulating element and to substantiate the choice of an appropriate thermal insulating fibrous material.

Analyzing the calculation results, it is possible to conclude about the expediency of using a lining with increased thermal resistance. The use of this technical solution makes it possible to reduce heat losses through the housing by 18-24%, to increase the amount of transferred material in the working zone by 1.5-8% due to the creation of an appropriate temperature field in the working volume, and to reduce the mass of the lining and the furnace as a whole. and increase the energy efficiency of the thermal unit.

The presence of cells with additional thermal insulation contributes to the emergence of thermal pulsations having oscillatory character and affecting the intensification of heat and mass exchange processes, which in general contributes to the performance of the thermal unit.

A significant advantage of this method is also the fact that increasing the energy efficiency of the furnace does not require additional fuel consumption, increasing the temperature or increasing the enthalpy of the combustion products.
Study of biological activity of lanthanum, cerium, and titanium oxide’s nanoparticles and their composites modified by silver
Authors: Vember Valeriia , Lavrynenko Olena , Zahornyi Maksim , Pavlenko Olesja , Benatov Danil
Published: July 2022

Nanocomposites based on TiO2, CeO2 and La2O3 are characterized by adsorption, bactericidal, and virucidal properties and are used to create antibacterial coatings with disinfection air and water. At the same time, the biological activity of silver-modified nanosized particles of lanthanum, cerium and titanium oxides is promising in terms of creating the latest materials for medical and biological purposes. The paper gives a general description of the phase composition, parameters of crystal lattices, sizes of primary particles (CSR), morphology and chemical composition of nanosized structures based on cerium, lanthanum, and titanium oxides synthesized by the chemical method. The effect of nanoparticles of lanthanum, cerium and titanium oxides and their composites modified with a silver (4 wt.%) on the growth peculierities of the microorganisms belonging to different systematic and physiological groups and the implementation of different types of life strategies was studied. It has been shown that silver-modified oxide nanoparticles inhibit the activity and growth processes of almost all studied microorganisms after annual exposure at a dose of 1 mg/ml, while unmodified oxide nanoparticles can show only weak traces of bacteriostatic effect. The difference in the reaction of bacteria belonging to different systematic groups in the incubation medium of the nanoparticles under study was revealed.
Waste Heat Recovery Systems with Isobaric Expansion Technology Using Pure and Mixed Working Fluids
Authors: Roosjen Sander , Glushenkov Maxim , Kronberg Alexander , Kersten Sascha
Published: July 2022

Economic expedience of waste heat recovery systems (WHRS), especially for low temperature difference applications, is often questionable due to high capital investments and long pay-back periods. By its simple design isobaric expansion (IE) machines could provide a viable pathway to utilize otherwise unprofitable waste heat streams for power generation and particularly for pumping liquids and compression of gases. Different engine configurations are presented and discussed. A new method of modelling and calculation of the IE process and efficiency is used on IE cycles with various pure and mixtures as a working fluid. Some interesting cases are presented. It is shown in this paper, that the simplest non-regenerative IE engines are efficient at low temperature differences between a heat source and heat sink. Efficiency of non-regenerative IE process with pure working fluid can be very high approaching Carnot efficiency at low pressure and heat source/heat sink temperature differences. Regeneration permits to increase efficiency of the IE-cycle to some extent. Application of mixed working fluids in combination with regeneration permits to significantly increase the range of high efficiencies to much larger temperature and pressure differences.
A Unique Observation of A Patient With Vulto-Van Silfhout-De Vries Syndrome
Authors: Bodunova Natalia , Vorontsova Maria , Khatkov Igor , Baranova Elena , Bykova Svetlana , Degterev Daniil , Litvinova Maria , Bilyalov Airat , Makarova Maria , Sagaydak Olesya , Danichevich Anastasiia
Published: July 2022

Introduction: VULTO-VAN SILFHOUT-DE VRIES SYNDROME (VSVS;OMIM#615828) is an extremely rare hereditary disease associated with impaired intellectual development and speech, delayed psychomotor development and behavioral anomalies, including autistic behavioral traits and poor eye contact. To date, 27 patients with VSVS have been reported in the world literature. Materials and Methods: We describe a 23y.o. male patient with autism spectrum disorder (ASD) who was admitted to the gastroenterological hospital with signs of pseudomembranous colitis. ASD was first noted in the patient at the age of 2.5y.o. Later he developed epileptic seizers and prominent growth retardation. Prior to the hospitalization he was excluded chromosomal aberrations, Martin-Bell syndrome, aminoacidopathies/aminoacidurias associated with ASD. Whole genome sequencing was prescribed to the patient at 23y.o. Results: The patient appeared to be a heterozygous carrier of “de novo” variant c.662C>T (p.S221L) in ex 4 of the DEAF1 gene. c.662C> T had not been previously described in genomic databases. According to the ACMG criteria this missense variant was considered to be pathogenic. VSVS was diagnosed in the patient. Conclusions: The phenotype of the patient is very similar to the data presented in the world literature. However, growth retardation and cachexia, not previously described in the articles, are of interest.
Recycling Strategies of Mine Tailing, with Environmental, Safety, Technical and Materials Considerations
Authors: Araujo Francisco S. M. , Llano Isabella Taborda , Fantucci Hugo , Nunes Everton Barbosa , Santos Rafael M.
Published: July 2022

Mining is an important industry that provides products and services through infrastructure systems worldwide. However, the global development promotes the steady growth and accelerated demand for minerals, resulting in the accumulation of hazardous waste in land, sea and air environments and, consequently a series of environmental and health problems. Restoration techniques from mining tailing have become increasingly discussed among scholars due to their potential to offer benefits over reducing tailings levels, thereby reducing environmental pressure for the correct management and adding value to previously discarded waste. This review paper critically explores available literature on the main techniques of mining tailing recycling, and discusses leading recycling technologies, including the advantages and drawbacks, as well as future perspectives. The findings of this review contribute as a reference for scholars as well as support for decisionmakers concerning the related environmental issues.
Endothelium: pro- and anti-thrombogenic activity of the vascular wall. Current state of the problem
Authors:   “Rusal Medical Centre” LLC, Moscow, Russian Federation, Panevina A.S. , Stuklov N.I. ,   Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation, Davydov A.I. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Parfenova O.A. ,   Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation, Barinova A.Yu. ,   “Rusal Medical Centre” LLC, Moscow, Russian Federation,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Bubnova M.M. ,   A.I.Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russian Federation, Panevin T.S. ,   V.A.Nasonova Scientific Research Institute of Rheumatology, Moscow, Russian Federation, Makarov O.E. ,   “Rusal Medical Centre” LLC, Moscow, Russian Federation, Basiladze I.G. ,   “Rusal Medical Centre” LLC, Moscow, Russian Federation,   Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation,   A.S.Loginov Moscow Clinical Scientific Center, Moscow, Russian Federation
Published: July 2022

This review considers the structure and regulation of endothelial activity, its role in angiogenesis and homeostasis maintenance. A special attention is paid to the influence of the vascular wall on the blood coagulation system and to the anti-thrombogenic properties of the endothelium. Different variants of endothelial dysfunction are presented, which can be severe and accompanied by high pro-thrombogenic activity, thrombosis, ischemia and fibrosis of organs and tissues or, conversely, have a slower course, in which the vascular intima involved in the process reduces its anti-thrombogenic function. The influence of these changes on homeostasis and the course of various diseases, including in obstetrics and gynecology, as well as the possibilities of modern diagnostics of endothelial dysfunction are discussed. Key words: endothelium, anti-thrombogenic activity of the vascular wall, endothelial dysfunction, pre-eclampsia
Ovarian pregnancy in a patient with endometriosis
Authors:   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Bryunin D.V. , Tarasenko Yu.N. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Lavrentyeva K.I. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Khokhlova I.D. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Dzhibladze T.A. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Lanchinsky V.I. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Asambaeva A. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Ishchenko A.I. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
Published: July 2022

The clinical observation of ovarian pregnancy in a 29-year-old patient with newly identified ovarian and peritoneal endometriosis, which is considered as a risk factor for ectopic pregnancy in the literature, is presented. This observation proves that ovarian pregnancy presents significant difficulties for the diagnosis: in our study, the diagnosis was established only during laparoscopy. The ovarian resection and the excision of the endometriotic foci were performed, which subsequently contributed to the onset of pregnancy with a favorable outcome – emergency delivery. Key words: ovarian pregnancy, endometriosis, surgical treatment
Thrombocytopenia mimicking HELLP syndrome in a pregnant woman with COVID-19
Authors:   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Dvoretsky L.I. , Davydov A.I. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Dyatlov N.V. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Doshchanova Zh.R. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation, Klindukhov I.A. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
Published: July 2022

Clinical observation of a pregnant woman with pre-eclampsia in whom a novel coronavirus infection COVID-19 combined with thrombocytopenia and elevated serum transaminase activity mimicked HELLP syndrome. Key words: pregnancy, transaminase activity, thrombocytopenia, COVID-19
Ultrasound diagnosis of early abdominal pregnancy
Authors:   “Zdravia Medical Clinic” LLC, Moscow, Russian Federation, Shishkina T.Yu. , Aksenova V.B. ,   Pirogov Russian National Research Medical University, Moscow, Russian Federation
Published: July 2022

A clinical observation of an early abdominal pregnancy is presented. The diagnosis was made by direct visualization of the fertilized egg in the abdominal cavity during ultrasound imaging; its mean internal diameter was 2.6 mm. No common clinical features of the disease were observed: no menstrual delay, abnormal menstruation, bloody vaginal discharge; urine test was negative before the day of expected menstruation (17 days before the patient’s visit). Ultrasound imaging was performed using a 3D/4D transvaginal transducer. Key words: abdominal pregnancy, tubal pregnancy, ectopic pregnancy, ultrasound diagnosis, three-dimensional ultrasound
Endometriosis-associated infertility: pathogenesis and possibilities of hormone therapy in preparation for IVF
Authors:   Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation, Orazov M.R. , Radzinsky V.E. ,   Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation, Orekhov R.E. ,   Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation, Tairova M.B. ,   I.M.Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russian Federation
Published: July 2022

Objective. Analytical review of the literature on endometriosis-associated infertility, its mechanisms and hormone therapy in preparation for in vitro fertilization (IVF). Endometriosis is considered the most common benign but potentially metastatic gynecological disease and occurs in approximately 10% of women of reproductive age, causing infertility in 40%. Patients with this disease often require the use of assisted reproductive technologies to increase the chances of pregnancy. However, endometriosis interferes with all aspects of the reproductive process and is associated with lower success rates than other indications for IVF. The mechanisms of infertility associated with endometriosis remain largely unknown. Several etiological factors of endometriosis-associated infertility are discussed, ranging from abnormal anatomy and fallopian tube obstruction due to pelvic adhesions to less studied factors such as proinflammatory cytokine responses leading to endometrial receptivity and impaired oocyte quality. Conclusion. To improve IVF outcomes in infertile patients with endometriosis, a long-term (3–6 months) hormone suppressive therapy before the cycle was suggested. Preliminary prescription of dienogest may improve clinical outcomes of pregnancy after IVF in patients with this disease. Dienogest has a favorable effect on both systemic and local inflammatory microenvironment, increases the number and quality of obtained oocytes, high-quality embryos and blastocysts, the rate of clinical pregnancy and live birth, which has been repeatedly shown in studies. Key words: endometriosis, IVF, IVF failure, dienogest, infertility
Strategies in Expressing Gratitude Performed by English Department Students in 5 th th and 7 Semester of Different Gender: A Socio-Pragmatics Approach
Authors: Arrum Regita Sekar
Published: July 2022

In this study, the researcher focuses on the analysis of the strategies in expressing gratitude performed by English Department students in 5th and 7th semester of different gender. The objectives of this study are (1) identifying the contexts, types, and functions that influence gratitude expression uttered by the 5th and 7th semester of English Department students based on gender differences, (2) analyzing and discovering the language pattern in gratitude expression used by the 5th and 7th semesters of English Department students based on gender differences. The researcher used a descriptive-qualitative method and employed Spradley’s analysis method in collecting and analyzing the data which includes domain, taxonomic, componential and cultural context analysis. The source of data is in the form of participants; the students of 5th and 7th semester in English Department whereas the data were taken from responses in the form of utterances in DCT answered by the participants. Throughout the taxonomic analysis, the data were classified into Cheng’s taxonomy (2005) of gratitude strategies.
THE JUSTICE AND EQUALITY IN HEALTHCARE: A REVIEW AND CRITICAL ANALYSIS OF THE 2016-2017 SOCIOLOGICAL PROJECT - MONOGRAPHS BY ZH.V. SAVELYEVA, L.M. MUKHARYAMOVA AND I.B. KUZNETSOVA
Authors:   Kazan State Medical University, OSLOPOV VLADIMIR N. , MISHANINA YULIANA S. ,   Kazan State Medical University, OSLOPOVA JULIA V. ,   Kazan (Volga Region) Federal University
Published: July 2022

Introduction. The study of social justice and equality in health care is presented in the context of scientific, expert and media conceptualizations of this phenomenon. Opinions and social perceptions of justice are characterized in terms of the liberal, socialist model of equitable health care and the modern concept of equality of opportunity in access to system resources. Aim. Conduct a critical analysis of the social project “Fairness and Equality in Health Care”, described in the monograph “Fairness and Equality in Health Care. Opinions of patients, experts and media discourse” by Zh.V. Saveleva, L.M. Mukharyamova, I.B. Kuznetsova. Material and methods. The article provides a review and critical analysis of the social project “Fairness and Equality in Health Care”, described in the monograph “Fairness and Equality in Health Care. Opinions of patients, experts and media discourse” by Zh.V. Saveleva, L.M. Mukharyamova, I.B. Kuznetsova. Results and discussion. The purpose of the project under review was to show how, through the analysis of the incidence in two Russian republics - the industrialized Republic of Tatarstan, and the predominantly agrarian Republic of Mari El - the cause of justice and equality in healthcare is presented and how contradictions can be resolved. Different positions, expectations regarding health care reforms and models of social justice are compared. The method of triangulation was used [lat. triangulum - triangle] quantitative and qualitative research methods. Semi-structured surveys of the population, experts, focus groups were conducted, and a mass survey was conducted. From the results obtained by the authors, 2 conclusions stand out: 1) an integrated approach to the analysis of equity in healthcare is needed; 2) actions are needed to equalize the accessibility of medical care to the population. Conclusion. Monograph “Fairness and equality in healthcare. Opinions of patients, experts and media discourse” by Zh.V. Saveleva, L.M. Mukharyamova, I.B. Kuznetsova, touches on one of the most burning issues that arise in modern Russian healthcare, issues that concern almost every inhabitant of Russia - "justice and equality". It is impossible to solve them in isolation from the global social policy in the state. The authors of the monograph literally keep their finger on the pulse of this important problem - as they say, they do it here and now. I hope that the authors will not confine themselves to one monograph on this vitally important topic (raising the question) and that the next monograph will be devoted to solving this most important problem.
IRON METABOLISM IN DISSEMINATED PULMONARY TUBERCULOSIS AND PNEUMOCYSTIS PNEUMONIA IN PATIENTS WITH HIV INFECTION
Authors:   Samara State Medical University, YAKOVLEVA ELENA V.
Published: July 2022

Introduction. The main disease that complicates HIV is Pneumocystis pneumonia. It often requires differential diagnosis with tuberculosis. Aim. The aim of the study was to conduct a comparative analysis of the clinical features and main indicators of iron metabolism in HIV infection with disseminated pulmonary tuberculosis and Pneumocystis pneumonia and to identify potential differential diagnostic markers of tuberculosis. Material and methods. The study included two groups of patients with HIV infection: 42 patients with disseminated pulmonary tuberculosis and 44 patients with Pneumocystis pneumonia. The clinical and laboratory data was carried out, the main indicators of iron metabolism were determined: iron concentration, hepcidin, ferritin. Statistical data processing was performed using the MedCalc 19.2.6 statistical software. Results and discussions. In the group of patients with Pneumocystis pneumonia, the proportion of patients with a severe condition is greater, the level of CD4-lymphocytes is significantly lower - 5 times less than in tuberculosis (p <0.001). Statistically significant differences between the groups were found for hepcidin and serum. The median for hepcidin is 1.4 times higher in group 1 than in group 2 (p <0.001), for serum - 1.5 times less in group 1 than in group 2 (р<0,001). In patients with HIV and pulmonary dissemination, a higher probability of tuberculosis was revealed with hepcidin more than 13810 pg/ml (sensitivity 80.95%, specificity 75%, ROC AUC 0.854) and with an iron concentration less than 10 μmol / L (sensitivity 85.7%, specificity 59.1%, ROC AUC 0.733). Conclusion. When examining patients with HIV infection and pulmonary dissemination syndrome who have a common anamnesis, clinical and radiological, laboratory data and a high degree of suspicion of tuberculosis, it was established by the analysis of ROC curves that the peptide hormone hepcidin has the greatest practical value for its further comprehensive study as a potential and a promising marker for the diagnosis of tuberculosis.
THE USE OF ENDONASAL ELECTROPHORESIS WITH MEXIDOL IN COMBINATION WITH ACUPUNCTURE IN THE TREATMENT OF PATIENTS WITH POST-COVID ANOSMIA
Authors:   Peoples’ Friendship University, Moscow, AL-ZAMIL MUSTAFA KH. , PUZIN MIKHAIL N. ,   Medical Dental Institute, Moscow, SHULAEV ALEXEY V. ,   Kazan State Medical University, KIPARISOVA ELENA S. ,   Federal State Budgetary Institution Federal Scientific and Practical Center of the Federal Medical and Biological Agency,  Moscow, LUBIMOV ALEXANDER V. ,   Medical Dental Institute, Moscow, SHILOVA TATYANA Y. ,   Medical Dental Institute, Moscow, RAMAZANOVA LIA SH. ,   Medical Dental Institute, Moscow, MAKKAEVA SAKINAT M. ,   Medical Dental Institute, Moscow, SKOROKHODOV ALEXANDER P. ,   Medical Dental Institute, Moscow, GUNTER NINA A. ,   Medical Dental Institute, Moscow
Published: July 2022

Introduction. A change or lack of odor in patients after suffering from Covid-19 caused the development of serious disturbances in appetite and nutrition, which led to a decrease in body weight and a deterioration in the function of the digestive system as a whole, followed by alimentary damage to internal organs. Aim. To study the effectiveness of the combined use of endonasal electrophoresis and acupuncture in the treatment of patients with post-covid anosmia. Materials and methods: 30 patients with a confirmed diagnosis of COVID-19 were under our supervision. All patients suffered from post-covid anosmia. 15 patients underwent exclusively drug therapy (control group) and 15 patients, in addition to drug therapy, underwent a course of endonasal electrophoresis of 5% Mexidol solution and acupuncture. All patients underwent testing of olfactory nerve function with the Sniffin ‘Sticks test before and after treatment. Results and its discussions: it was found that the use of endonasal electrophoresis in combination with acupuncture significantly enhances the effectiveness of drug therapy in improving the parameters of the olfactory nerve in the threshold test by 143.5% (p <0.01), the discriminatory test by 129.5% (p <0, 01), the identification test by 184.5% (p <0.01) and by the total number of points by 148.7% (p <0.01). Conclusion: High efficiency of combined use of endonasal electrophoresis of 5% Mexidol solution and acupuncture in the treatment of patients with post-covid anosmia was detected. This method of treatment increases the effectiveness of drug therapy by 1.5 times.