bluuebunny/crossref_metadata_2025 huggingface dataset:
Флористичне різноманіття біотопів другої тераси (арени) Присамар’я
Authors: Baranovski B. O. , Karmyzova L. O. , Kulіk A. F. , Ivanko I. A. , Nikolaieva V. V. , Zhykharieva A. V.
Published: January 2025

Наведено характеристику різноманіття фізико-географічних умов та біоекологічну характеристику флори аренного ландшафту Присамар’я Дніпровського, яке є одним із добре збережених природних комплексів степової зони України. Друга піщана тераса (арена) займає майже половину площі долинно-терасового ландшафту Присамар’я і включає різні ділянки, які відрізняються розташуванням на геоморфологічному профілі річки Самари, що обумовлює різну міру зволоження, мікроклімату та різницю в ґрунтовому покриві та рослинності. За результатами проведеного систематичного, географічного, біологічного та екоморфічного аналізів установлено, що флора аренного ландшафту становить 457 видів судинних рослин – 34,4 % від загальної кількості видів (1159 видів) усього природного комплексу Присамар’я Дніпровського, які належать до 5 відділів, 7 класів, 90 родин. У складі флори серед клімаморф переважають гемікриптофіти, серед біоморф – багаторічники, серед геліоморф – сціогеліофіти, серед трофоморф – мезотрофи та оліготрофи, серед гігроморф – мезофіти та ксерофіти. У результаті проведеного ценоморфічного аналізу з’ясовано, що у складі флори серед ценоморф переважають псамофанти та сильванти. Раритетна фракція флори представлена 95 видами. Серед них один вид включено до Світового Червоного списку, три види – до Європейського Червоного списку, 17 видів – до Червоної книги України, 60 видів (а також види вищих раритетних категорій) занесено до Червоного списку Дніпропетровської області. Адвентивна флора представлена 29 видами судинних рослин, серед них 17 інвазійних. Географічний аналіз дослідженої флори аренного ландшафту Присамар’я показав, що в її складі переважає голарктичний (200 видів), голарктично-бореосубтропічний (44 види) та температно-меридіональний (32 види) зональний елементи. Аналіз за регіональним географічним елементом показав переважання євразійського елемента (284 видів). Інші види належать до північно-американського, африкансько-євразійського, європейського, середземноморського, а також космополітного елементів і представлені значно меншою кількістю видів. Аналіз трансформації аренного ландшафту Присамар’я за системою гемеробії свідчить, що за гемеробністю видів у флорі переважають види олігомезогемероби та мезогемероби. Все це свідчить про олігомезогемеробність цього ландшафту, що визначає аренний ландшафт Присамар’я в цілому як малотрансформований.
Властивості плодів рослин роду Sorbus за вегетації в умовах степового клімату
Authors: Liashenko O. V. , Khromykh N. O. , Didur O. O.
Published: January 2025

Робота висвітлює важливість рослинних ресурсів як основи сталості екосистем, збагачення їх біорізноманіття та надання фітомеліоративних сервісів, а також як вагомої складової оздоровлення і продовольчої безпеки населення, що визначає необхідність їх раціонального використання. Поряд із екологічними аспектами цінності рослинних ресурсів важливою складовою є також їх унікальний фітохімічний склад, що слугує джерелом виявлення нових біологічно активних речовин. Поширений у північній півкулі род Sorbus L. (горобина) представлений у флорі України природними та інтродукованими видами, які добре відомі в етномедицині, але недостатньо повно вивчені для ефективного використання рослинного матеріалу. У роботі досліджено закономірності впливу едафічних і кліматичних умов під час вегетації в степовій зоні на  характеристики плодів рослин горобини. Наведено показники температурного режиму і рівня опадів у період формування і дозрівання плодів (липень – вересень) упродовж 2022–2024 років. Надано характеристику фізико-хімічних особливостей ґрунтів Ботанічного саду ДНУ імені Олеся Гончара на тих ділянках, де ростуть рослини роду Sorbus L. Порівняльний аналіз морфометричних показників плодів у 2022–2024 роках виявив зниження маси сухих плодів горобини за високих температур повітря і значного дефіциту вологи під час дозрівання плодів у 2024 році. Найбільше зниження сухої маси зафіксовано для плодів S. domestica (у 3,9 разу; P ˂ 0,05), тоді як у плодів рослин S. torminalis показник зростав у 1,3 разу. Усереднений показник вологості плодів горобини знижувався від 51,95 % у 2022 році до 50,30 % у 2023 році та до найменшого (46,83 %) у 2024 році. Показано зниження загального вмісту поліфенолів у плодах горобини в 2024 році, порівняно з попередніми роками, найбільше (вдвічі) у плодах рослин S. hybrida і S. aria, найменше (на 13–20 %) – у плодах S. latifolia і S. torminalis. Накопичення флавоноїдів у плодах усіх рослин у 2024 році відбувалось на найнижчому рівні за роки досліджень, особливо в плодах S. latifolia, S. aucuparia і S. torminalis. Отримані результати свідчать, що вміст вторинних метаболітів у плодах рослин горобини є результатом реалізації генетичного потенціалу видів у певних едафічних і кліматичних умовах періоду вегетації, тому може слугувати прогностичним маркером для отримання кращого рослинного матеріалу. Етанолові екстракти плодів горобини демонстрували антибактеріальну й протигрибкову активність як проти музейних культур, у тому числі грамнегативних бактерій Klebsiella pneumoniae В920, так і проти стійких до антибіотиків клінічних штамів грам-позитивних бактерій Staphylococcus epidermidis та диплоїдного грибка Candida albicans. Отримані результати вказують на високий антимікробний потенціал плодів горобини, який потребує подальших досліджень.
Ecomorphic analysis of plant communities with Ambrosia artemisiifolia L. in the urban ecosystem of Dnipro city
Authors: Udzhmadzhuridze V. G. , Lisovets O. I.
Published: January 2025

The relevance of the study is due to the growing problem of invasive plant species, in particular ragweed, which has become a dominant weed in many regions of Europe, including Ukraine. This species not only adapts to the conditions of urbanized areas, but also significantly changes the structure of the vegetation cover, which can lead to the loss of biodiversity of native plant species. In the city of Dnipro, where anthropogenic factors contribute to the spread of ragweed, it is important to know its impact on plant communities. Within the urban ecosystem of the city of Dnipro, 343 species of vascular plants belonging to 74 families were found on 685 surveyed plots. The phytocoenoses with Ambrosia artemisiifolia include 300 species from 71 families, while 274 species from 64 families were recorded in phytocoenoses without this species. The adventitious component of plant communities is 128 species (37.3%), of which a significant proportion (70%) are neophytes, mainly with a North American primary range, many of which have become naturalized. Among the most dangerous invasive species in phytocoenoses without ragweed are Polygonum aviculare (57.6%), Hordeum murinum (51.6%) and Chenopodium album (49.2%). The communities with the presence of ragweed are dominated by Erigeron annuus (62.5%), Elytrigia repens (53.7%) and Chenopodium album (49.6%). The presence of ragweed is associated with a decrease in the coverage of competitive species such as Polygonum aviculare and Poa angustifolia, which probably indicates its allopathic activity. The analysis showed that in phytocoenoses with Ambrosia artemisiifolia, the average number of species is 16.64 ± 0.59, which is higher than in communities without ragweed (11.16 ± 0.48). This increase is explained by the emergence of synanthropic species that adapt to the conditions created by the invasion. However, the increase in species diversity is a sign of ecological imbalance, which can lead to the dominance of ragweed and the transformation of natural communities. Plant communities with and without ragweed have a similar phytocoenotic and bioecomorphic structure, which indicates favorable ecological conditions for the spread of this species in the urban ecosystem of Dnipro. Competition between species can be an effective factor that restrains the further spread of ragweed. This emphasizes the prospects of using interspecific competition as a method of regulating the invasion of A. artemisiifolia.
Нові знахідки раритетного виду Dianthus trifasciculatus Kit. у складі угруповань флори Придніпровської яружно-балкової системи і Мокрої Сури
Authors: Kyiak S. V.
Published: January 2025

Стаття присвячена вивченню сучасного поширення раритетного виду Dianthus trifasciculatus Kit. у межах природних комплексів Правобережного степового Придніпров'я. У процесі досліджень флори балки Щурівської і басейну річки Мокра Сура виявлено 7 локалітетів Dianthus trifasciculatus Kit., а також низку нових місцезнаходжень рідкісних для області та регіону видів у складі псамофітних угруповань. Тут зростає 26 регіонально рідкісних видів рослин, 13 видів, занесених до Червоної книги України, 3 види з Резолюції 6-ї Бернської конвенції та Додатків Оселищної директиви, що представлені у флорі України, 1 вид зі Світового Червоного списку. До списку рослин Дніпропетровської області, занесених до Червоної книги України, входить 56 видів судинних рослин, з них 13 видів зростає в межах балки Щурівської, що становить 23 % від загальної кількості червонокнижних видів Дніпропетровщини. Важливою і цікавою особливістю товщі пісків, що відшаровуються на правому схилі балки, є наявність брил червоних, збагачених оксидами заліза, пісковиків. Поблизу виходів пісковиків на піщаному ґрунті сформований характерний комплекс флори за участю Sempervivum ruthenicum Schnittsp. & C.B. Lehm, Pulsatilla pratensis (L.) Mill. s.l., Thymus pallasianus Heinr.Braun, Peucedanum arenarium Waldst. & Kit. (Taeniopetalum arenarium (Waldst. & Kit.) V. N. Tichomirov), Achillea leptophylla M. Bieb. Тут зростають Jurinea cyanoides (L.) Rchb і Pulsatilla patens (L.) Mill. s.l. – рідкісні види з Додатків Оселищної директиви, Додатку I Бернської конвенції, які надають перевагу біотопам з непорушеною структурою у складі раритетних ценозів. Дослідження раритетної фракції флори балкової системи в контексті збереження біорізноманіття Правобережного степового Придніпров'я може стати підґрунтям природоохоронної концепції сталого розвитку регіону.
MORPHOLOGICAL AND BIOMETRICAL DESCRIPTION OF LINOGNATHUS STENOPSIS BURMEISTER, 1838 AND BOVICOLA CAPRAE GURLT, 1843 FOUND IN GOATS
Authors: N. Nizamov
Published: January 2025

PURPOSE: The current study was performed to present a morphological and biometrical description of the sucking louse Linognathus stenopsis Burmeister, 1838 (Anoplura: Linognathidae) and the chewing louse Bovicola caprae Gurlt, 1843 (Ischnocera: Bovicolidae) found in goats. METHODS: A total of 100 male and 100 female lice of each species were subjected to morphological and biometrical identification. The key points used for identification were as follows: head length (HL), head width (HW), thorax length (TL), thorax width at the prothorax (TW), abdomen length (AL), abdomen width (AW), total body length (TBL), index of the head (IH = HL/HW), index of the body (IB = TBL/AW), last segment length (LSL), last segment width (LSW) and index of the last segment (ILS=LSL/LSW) as well as the ratio of the total body length to the head length (TBL/HL). RESULTS: The complete morphological description of the species L. stenopsis revealed that the TBL in females varies from 1.7 mm to 2.4 mm, while in males it ranges from 1.2 mm to 1.6 mm. The body length of female specimens of the species B. caprae ranges between 1.5–1.9 mm, and that of males between 1.0–1.4 mm. TBL in L. stenopsis is strongly influenced by AL. The analysis shows a distinctive connection between TBL and AW as well as in AL and AW of females. TBL in female B. caprae shows a strong correlation with AW and AL and in males between TBL and AL and TL. CONCLUSIONS: These morphological and biometrical descriptions could be used as a reliable marker for species identification.
Bobby Freeman: First Catch Your Peacock
Authors: Davidson Alan E
Published: January 2025

Bobby Freeman: First Catch Your Peacock: Image Imprint, Commercial Street, Griffithstown, Gwent: paperback, about 230 pages, £5.50.
John Nott: The Cook's and Confectioner's Dictionary, 3rd edn with additions, 1726
Authors: Davidson Alan E
Published: January 2025

John Nott: The Cook's and Confectioner's Dictionary, 3rd edn with additions, 1726: a facsimile edition furnished with an Introduction and Glossary by Elizabeth David: Lawrence Rivington (10 Sutherland Road, London W 13), 1980: 200 numbered copies only, bound in full leather: pages un-numbered, but about 400: £50.
Telur Dadar Padang
Authors: Editors The
Published: January 2025

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Fougasse
Authors: Editors The
Published: January 2025

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Stephanie Alexander: Stephanie's Feasts and Stories
Authors: Santich Barbara
Published: January 2025

Stephanie Alexander: Stephanie's Feasts and Stories: Sydney (Allen and Unwin) and London (Unwin Hyman) 1988: 306 pp, colour photographs and other illustrations, bibliography and index, Aus$ 34.95 or £16.95.
Those Frogs
Authors: Michael Nicholas , Hieatt Constance , Willis-Fear Rosamund , Gray Patience , Cane R F , Gautby Isobel M , Henisch Bridget Ann
Published: January 2025

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Wild cherry Prunus microcarpa: its phytochemical, antioxidant, enzyme inhibitory, anti-inflammatory, and acute toxicity approaches
Authors: A.j. Jabbar Ahmed , Abdul-Samad Ismail Parween
Published: January 2025

Therapeutic plants are potentially a great renewable biomolecule source with fewer downsides than synthetic chemicals. Prunus microcarpa Boiss. is a wild fruity plant prepared by hydro-distillation and consumed as a traditional remedy for many health defects. The study investigates the phytoconstituents, antioxidant, anti-inflammatory, and acute toxicity effects of methanolic extracts of P. microcarpa fruits and stems plus pedicles (MEPMF and MEPMSP). The total phenolics, flavonoids, anthocyanins, and tannins were spectrophotometrically estimated. The enzyme inhibitory action (against α-amylase and α-glucosidase), antioxidant potentials (using five different assays), and anti-inflammatory potentials (using the egg albumin denaturation procedure) were determined. Phytochemical profiling revealed increased total phenolics (76.34 and 121.45 mg gallic acid equivalent/g extract), flavonoids (210.30 and 18.93 mg GAE/g extract), anthocyanin (176.23 and 149.34 mg cyanidin 3-glucoside equivalent/g extract), and tannins (112.39 and 64.87 mg GAE/g extract) in MEPMF and MEPMSP, respectively. MEPMF had higher antioxidant potentials (130.83 and 117.12 mg TEs/g–1 extract in ABTS and DPPH assays, respectively) and higher reducing power actions (413.40, 141.23, and 97.62 mg TEs/g–1 extract in phospho-molybdenum, CUPRAC, and FRAP assays, respectively) than that of MEPMSP. MEPMF showed better inhibitory actions against α-amylase (IC50; 6.70 mg/mL), α-glucosidase (IC50; 5.72 mg/mL), and protein denaturation (IC50; 53.78 mg/mL) than that (IC50; 7.53, 6.28, and 84.42 mg/mL, respectively) of MEPMSP. According to biochemical evaluation, both extracts (2 and 5 g/kg) showed nontoxic effects in a two-week animal trial. In this first detailed record on P. microcarpa, the species exhibited numerous biological potentials attributed to its rich phytoconstituents, which also backed up its ethnomedicinal use.
Investigation of fault tolerance of helicopter transmission units in conditions of lubrication system failure
Authors:   Aviation Gearboxes and Transmissions – Perm motors, Zagumennov Nickolay , Salnikov Alexey ,   Perm National Research Polytechnic University
Published: January 2025

An overview of the development of the requirements of domestic and foreign airworthiness Standards for additional tests of helicopter transmission units (main gearboxes and other transmission gearboxes) in conditions of lubrication system failure is presented. The main factors influencing the change in the requirements of airworthiness Standards and the risks of validation and verification of certificates of airworthiness of domestic types of rotorcraft by importing countries in conditions of harmonization of their national airworthiness standards with American or European airworthiness Standards are considered. Foreign studies on the subject of fault tolerance research of helicopter transmission units are described; methods and means to ensure the efficiency of the gearbox in conditions of lubrication system failure. The conclusion is made about the limited applicability of published foreign materials for extrapolating the results of these studies to the analysis of domestic gearbox designs from the point of view of predicting fault tolerance in conditions of lubrication system failure. The concept of investigating the operability of domestic gearboxes in conditions of lubrication system failure is proposed, the main objectives of the study are formulated, and brief information about the results achieved is provided. It is proposed to apply the results of the study in the form of developing a methodology for predicting the efficiency of a gearbox in conditions of a lubrication system failure, taking into account its specific design features.
Volcano impact on the gas turbine engines operation
Authors:   Perm National Research Polytechnic University, Popova Diana , Sazhenkov Aleksey ,   UEC-Aviadvigatel
Published: January 2025

The paper analyzes the main mechanisms of the volcanic ash impact on various types of aviation gas turbine engines. The results of engineering tests of the operation of two-circuit gas turbine engines PW F100 under the influence of volcanic ash are presented. The impact of volcanic ash on the Rolls-Royce RB211-524D4 and General Electric CF6-80C2 engines of Boeing 747 aircraft when all aircraft engines were shut down in flight is considered. The main engine damages are: abrasive-erosive depreciation of compressor blades; formation and accumulation of deposits of melted ash particles on combustion chamber elements and high-pressure turbine blades.
It is confirmed that the most critical consequence of the impact of volcanic ash on a gas turbine engine is the formation and accumulation of vitreous deposits on the blades of the nozzle apparatus of the first stage of the turbine.
The foreign materials presented in open sources are compared with the results of certification tests of the PD-14 gas turbine engine for resistance to volcanic ash.
Further research directions have been identified as development of a model for the accumulation of ash material deposits on the first nozzle blades of a gas turbine, as well as modeling of generation zones (volumes) of the liquid phase of volcanic ash in the combustion chamber of a gas turbine engine at different engine operating modes, taking into account the temperature parameters of ash particles.
The presented research is performed under the leadership of Academician of the Russian Academy of Sciences A.A. Inozemtsev.
The effect of turbulent intensity on the calculation of flameless combustion at a low concentration of oxidizer
Authors:   Perm National Research Polytechnic University, Frolov Yurii , Rekka Elena ,   Perm National Research Polytechnic University, Bulbovich Roman ,   Perm National Research Polytechnic University
Published: January 2025

The paper examines the effect of turbulent intensity on the results of modeling flameless combustion MILD (Moderate Low Oxygen Dilution) using the EDC (Eddy dissipation concept). Calculating and setting the correct value of the turbulent intensity and hydraulic diameter when determining the initial calculation conditions allows us to obtain the most accurate results of modeling flame processes in the ANSYS FLUENT software package. The process of flameless combustion of methane (CH4) in a burner with a hot flow of the oxidizer Adelaide JHC (Jet Hot Coflow) at an oxidizer concentration (O2) was simulated 3, 6, 9 %. In the work, modeling was performed with calculated and selected values of two studied indicators that affect the calculation results. As a result, a comparison of the experiment with the simulation results was presented, namely, the concentration of combustion products and temperature at a distance of 30, 60, 90 mm from the entrance of the fuel and oxidizer into the simulation zone. This comparison shows that the obtained value based on the calculation of such indicators as combustion products (CO, CO2, H2O, OH) formed as a result of flameless combustion, allows us to obtain the best simulation results comparable to the experiment. These indicators mainly influence changes in the peak values of combustion products in the flameless combustion zone presented in the work, especially on carbon monoxide. This work shows the value of preliminary calculation of turbulent intensity and hydraulic diameter in modeling flame processes in the software package ANSYS FLUENT.
Damage to the ion engine electrode material during the launch of the spacecraft into low-earth orbit
Authors:   Perm National Research Polytechnic University, Razumovsky Egor , Shavshukov Vyacheslav ,   Perm National Research Polytechnic University
Published: January 2025

When launching a spacecraft into low-Earth orbit, the payload equipment is exposed to broadband vibration. When exposed to broadband vibration on the ion motor, which is a payload, there is a possibility of collision of the electrodes of the ionoptical system and their subsequent destruction. In order to avoid the destruction of the electrodes of the ion-optical system, it is necessary at the design stage of the ion engine to choose such geometric parameters as the placement of the electrodes and their thickness so that they meet the conditions of rigidity and strength and at the same time provide the required transparency and density of the ion current. The present study is devoted to a detailed study of the effect of mesoscale effects of damage to the C/С composite pyrocarbon matrix on the magnitude of the amplitude of oscillations of the electrode aperture and on macroscopic strength. Two-level models have been developed to assess the effect of processes at the meso level on the amplitude of movements of the electrode aperture. The developed mathematical model works on two levels: at the first level, the fields of macro stresses and macro deformations are determined by the finite element method in the ANSYS package, and at the second level, the boundary stochastic problem is solved by the method of integral equations. The result of the calculation of the second level is the density distribution of the probability of damage to the crystallites of the pyrocarbon matrix. The distribution densities determine the probability of damage to pyrocarbon crystallites and the volume fractions of damaged grains. To simplify the operation of the mathematical model, the continuous domain of the model is divided into subdomains in which the effective elastic properties of the C/C composite with a pyrocarbon matrix are degraded as a result of damage. The results of the numerical analysis of the effect of damage processes based on the developed model clearly demonstrate a decrease in structural rigidity when taking into account pro- cesses at the mesoscale level in comparison with the standard macroscale model. A comparison of the results obtained with the results of an intact electrode allows us to conclude that the amplitude of displacement of the aperture of the product increases. Based on the data obtained, the design of the ion-optical system can be improved at the design stage.
Synthesis of rational compositions of artifiсial neural networks for aerodynamic characteristics evaluating
Authors:   Tula State University, Vetrov Vyacheslav , Kostyanoy Evgeniy ,   Tula State University, Shiraev Alexander ,   Tula State University
Published: January 2025

When designing various objects, the problem of determining the parameters of air flow around a body arises. The use of numerical gas dynamics methods to solve these problems is not always justified, due to their high labor intensity and resource intensity, large time costs to obtain the result. Engineering calculation methods are much less labor intensive and resource intensive. However, the complexity of physical processes, the variety of geometric parameters, the large volume and heterogeneous nature of the available data have not allowed to formulate a unified methodology for engineering aerodynamic calculations at the moment. The authors of the article propose the use of artificial neural networks to determine aerodynamic parameters. In this paper, a preliminary structural and parametric synthesis of an artificial neural network to determine aerodynamic characteristics is carried out. An undemanding mathematical model for determining the drag coefficient based on the conical flow method is considered. Using this mathematical model, a database for training the neural network is formed. Three series of numerical experiments were conducted to determine the dependencies of the accuracy of the results on various parameters of the neural network and the data used for training. The dependencies of the accuracy of the results on the detailing of the description of the geometry of the object, on the number of neurons on the hidden layers and the number of hidden layers, on the volume of the training sample, on the structure of the neural network were considered. Based on the results of the analysis, key parameters were identified that have the greatest impact on the accuracy of the obtained results, and the rational values of these parameters were determined.
INTERVENÇÃO EDUCATIVA SOBRE MEDIDAS DE BIOSSEGURANÇA COM TRABALHADORES DA SAÚDE NO ENFRENTAMENTO DA COVID 19
Authors: Gomes Paloma Menezes , Lins Mikaeli Lisle Dantas , Castro Rebecca Dianci Andrades de , Melo Quezia Catharinne Cavalcante de , Santos Pollyanna de Ulhôa , Teixeira Anita Coelho dos Santos , Sousa Silvely Tiemi Kojo , Ferreira Marcus Vinicius Nascimento , Almeida Mirian Cristina dos Santos
Published: January 2025

Sabe-se que os trabalhadores da saúde, devido ao seu processo de trabalho, estão expostos a riscos de adoecimento por agentes biológicos. Este estudo buscou testar a efetividade de intervenção educativa sobre medidas de proteção contra contaminação, adotadas por trabalhadores da saúde no enfrentamento da COVID-19. Trata-se de um estudo quase-experimental, do tipo pré e pós-teste, com amostra não randomizada. Os dados foram coletados com trabalhadores da saúde vinculados ao município de Palmas – TO, antes de intervenção educativa, em duas fases: a primeira de junho a agosto de 2020 e a segunda de abril a junho de 2021. Os participantes responderam ao Questionário sobre o perfil pessoal e laboral e o Questionário para avaliação do conhecimento e comportamento referido sobre precauções padrão e precauções baseados na transmissão, incluindo paramentação e desparamentação e foram avaliados quanto a técnica de higienização das mãos com solução alcoólica fluorescente. Quanto às medidas de proteção adotadas no enfrentamento da COVID-19 verificou-se que a mediana da pontuação para precauções padrão foi de 15 em 2020 e 16 em 2021; ao passo que a mediana para precauções específicas foi de 7 em 2020 e 8 em 2021. Na associação da participação prévia em intervenção educativa sobre biossegurança e as variáveis precaução padrão, precaução específica e higienização das mãos verificou-se que ter participado da atividade educativa em 2020 foi fator de proteção (OR = 0,36; IC95%:  0,12-0,97) para higienização adequada das mãos. Evidenciou que a intervenção educativa emerge como uma ferramenta importante no enfrentamento de cenários similares aos da pandemia da COVID-19.
Intelligente Sensoren verbessern die Ergonomie in der Arbeitswelt
Authors:   Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK, Berlin, Grambow Niklas , Kuschan Jan ,   Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK, Berlin
Published: January 2025

Intelligent sensors improve ergonomics in the working environment
Demographic change presents new challenges for the industry. A growing proportion of older employees necessitates greater attention to ergonomic aspects and health risks in the workplace. By leveraging intelligent sensor technology, human actions can be analyzed, ergonomic conditions assessed, and workflows systematically optimized.
Neue TRGS 401 & Co – Praxisnahe Erläuterungen und Anwendungstipps
Authors:   Institut für Prävention und Arbeitsmedizin der DGUV, Institut der Ruhr-Universität Bochum (IPA), Gina Michal , Brüning Thomas ,   Institut für Prävention und Arbeitsmedizin der DGUV Institut der Ruhr-Universität Bochum (IPA), Kröger Elena ,   Institut für Prävention und Arbeitsmedizin der DGUV Institut der Ruhr-Universität Bochum (IPA), Hosbach Ingolf ,   Institut für Prävention und Arbeitsmedizin der DGUV Institut der Ruhr-Universität Bochum (IPA), Altenburg Christiane ,   Berufsgenossenschaft für Gesundheitsdienst und Wohlfahrtspflege; Hamburg, Pieper Birgit ,   Berufsgenossenschaft Holz und Metall, Dortmund, Rode Heiko ,   Arbeitsmedizinischer und Sicherheitstechnischer Dienst der Berufsgenossenschaft Nahrungsmittel und Gastgewerbe (ASD*BGN), Kamen-Heeren, Stark Ulrike ,   Berufsgenossenschaft Nahrungsmittel und Gastgewerbe; Mannheim, Steinmann Juliane ,   Unfallkasse NRW, Düsseldorf
Published: January 2025

New TRGS 401 & Co – Practical explanations and application tips. Practice-oriented assistance for occupational physicians on TRGS 401 and skin hazards
The current Technical Rules for Hazardous Substances (TRGS) 401 “Risk due to Skin Contact, Assessment - Evaluation - Measures” offers comprehensive guidelines for evaluating risks from skin contact with hazardous substances and redefines wet work. Since its release in November 2022, there have been uncertainties in interpretation and implementation, resulting in numerous inquiries at the accident insurance providers (UVT). This article addresses frequently asked questions and practical issues from a medical and scientific perspective and proposes pragmatic solutions to ease the implementation of the recommendations.
Instability of topsoil benches of a pit caused by dumping of waste rock outside an opencast coal mine
Authors: Golder A. , Dandapat S.P. , Roy I.
Published: January 2025

One of the consequences of large-scale opencast mining for coal is the disposal of an enormous volume of overburden material that needs to be removed. With the enlargement of opencast mines and associated high stripping ratios, the volume of overburden extraction is rising. Overburden from the initial mine cut has to be necessarily dumped outside the mining area until enough void is created inside the mine for back-filling operations. The quantity of overburden placed outside the mining area normally varies from 10% to 30% of the total overburden removal. The stability of these dumps placed outside the mining area is of prime importance from the point of view of smooth operations of the mines and safety of persons in and around the dumping area. Owing to increasing pressure on land use, mine operators do not have any other option other than to place the waste dumps very near to the surface edge of the pit, which may lead to failure of the topsoil benches of the working pit. This study identified major controlling parameters that influence a stable but economic combination of height and slope angle of external dumps located close to the edge of an open coal pit.
Re-evaluation of the PlatMine chromitite pillar strength database
Authors: Watson B.P. , Mabala M.I. , Kanda M.J.
Published: January 2025

A failed and stable Upper Group 2 chromitite pillar database was collected in 2007 as part of the PlatMine 1.2 pillar strength project. The database consisted of 177 pillars, of which 33 had failed. Most of the data were collected from various intermediate-depth mines near the town of Thabazimbi. Spans between rows of chain pillars were about 30 m. Pillar loads were estimated using pseudo-3D, elastic, boundary element modelling software. The pillar-load data were evaluated using a maximum likelihood regression analysis to determine strength parameters, following a similar approach to historically acceptable practice. The original formula was named the PlatMine Formula. This paper describes re-evaluations of the database, using a linear formula and several variations of the power formula. The formula providing the lowest standard deviation to the data in the database was considered the best representation of the pillars in the database. Through this rigorous process, a new formula for peak pillar strength was developed for Upper Group 2 chromitite pillars, which is unaffected by volume. The small standard deviation provided by this formula suggests a reliable relationship between strength and w/h ratio, in the w/h ratio range between 1.5 and 4.7. Accuracy, precision, and recall analysis confirmed the efficacy of this equation to the data in the database. Importantly, the new formula provided in the paper does not predict a significantly different strength to the current PlatMine formula, within the confines of the database.
The development of a linear cutting machine used to characterize FEM modelling parameters for cutting UG2 Reef
Authors: Du Preez U. , Heyns P.S. , Malan D.F.
Published: January 2025

South Africa has two main platinum reef deposits, namely the Merensky reef and the UG2 reef. These reefs are currently mined using traditional drilling and blasting methods. Mechanized cutting could potentially enable continuous mining, which would offer significant advantages. This would require thorough understanding of the cutability of the rock. To explore this, a linear cutting machine was developed to conduct laboratory scale cutting tests. This work describes the development and commissioning of the cutting machine using sandstone, as well as subsequent characterization tests on UG2 reef samples.
UG2 reef has large variability in strength on a millimeter scale. This introduces uncertainty in the test results due to added variance from one cut to the next for the same UG2 reef sample. Another problem is the variability in rock properties of the UG2 reef, when testing samples from different mines. The cutting tests led to fine fragmentation, which is known to be a significant problem for cleaning operations in underground stopes and warrants further research.
A finite element method simulation of the rock cutting was conducted using ANSYS LS-DYNA and the continuous surface cap model to simulate rock cutting in the UG2 reef. It was found that it is possible to use LS-DYNA with the continuous surface cap model to model rock cutting of UG2 reef and get acceptable results, but the user must calibrate the model parameters using the experimental results. Therefore, the model is only fit for one set of cutting parameters and further work is required to generalize results.
Back analysis of LG6/LG6A chromitite pillar strength using displacement discontinuity modelling
Authors: Le Roux P.J. , Malan D.F.
Published: January 2025

Almost no work has been published on the strength of pillars in mines exploiting the LG6/LG6A chromitite bands in the Western Bushveld Complex. The strength of these pillars is unknown, and the hard rock industry still uses the Hedley and Grant formula. Numerical modelling, using inelastic constitutive models, may be of some value in estimating the pillar strength, but this approach is difficult and prone to errors as many assumptions are made. This paper explores the alternative approach of the back-analysis of actual LG6/LG6A mining layouts, using displacement discontinuity codes to simulate the average pillar stresses on a mine-wide scale. From this, and underground observations, a 'minimum' pillar strength (K-value in the pillar strength formula) can be estimated. The codes TEXAN and Map3D are both used in the paper to simulate the actual pillar shapes and sizes in an LG6/LG6A mine. The results are encouraging as the two codes produced similar APS values for a complex pillar geometry. An estimated K-value of 77 MPa was determined for the LG6/LG6A pillars in this particular area. This is more or less similar to earlier work done for the UG2 chromitite seam, but higher than the K-value of 39 MPa for a linear formula obtained by other workers for LG6/LG6A pillars. Caution should therefore be exercised before using this higher value for all areas. The effect of element sizes and explicitly simulating the effect of the surface for shallow pillars is illustrated in the manuscript using both codes. The need for actual pillar observations and an iterative design process, which cycles between modelling and observations, is also emphasized.
Estudo para melhoria do conforto térmico e diminuição da formação de ilhas de calor urbana no centro de Recife, PE
Authors: Silva Paula Maciel , Ferraz Maria Eduarda
Published: January 2025

The present study aims to investigate the influence of the form of occupation of the territory on environmental conditions, with the aim of reducing the formation of Urban Heat Islands and increasing thermal comfort. The area chosen as the object of study is located in the center of Recife-PE. To prepare the diagnosis of the territory, the survey was carried out through field visits using the ESIG – Recife Geographic Information System as a basis for preparing the maps. From the data collected, it was possible to analyze the territory based on: the classification of Local Climatic Zones, the identification of Morphotypological Limits and the Environmental Indicator. Computer simulations were carried out using Autodesk Forma Software, which generated data that allowed a comparison between the different forms of occupation of the territory. Green corridors were inserted as a strategy to mitigate the effects of urbanization, which defined new scenarios that provided data to analyze the difference in air temperature and urban quality. These are strategies to reduce the formation of Urban Heat Islands also at the city scale.
Impacto de la cultura organizacional en la implementación efectiva de planes estratégicos en organizaciones: una revisión sistemática
Authors: Becerra Castro Mauricio Alejandro , Paz Becerra Alex , Condom Bosch José Luis , Soriano Soriano Gabriel
Published: January 2025

Este artículo presenta una revisión sistemática sobre el impacto de la cultura organizacional en la efectividad de la implementación de planes estratégicos en organizaciones durante la última década. A través de un análisis comparativo y de contenido, se estudian 31 artículos seleccionados de las bases de datos WoS y Scopus, y se evidencia el papel crucial de la cultura en el éxito o fracaso de las estrategias empresariales, también se destaca la influencia de la cultura en aspectos como la motivación de empleados, la toma de decisiones y el desempeño organizacional. Se discute la importancia de alinear la cultura con los planes estratégicos para una implementación efectiva. Se concluye con recomendaciones prácticas para la gestión de la cultura organizacional en el contexto de la planeación estratégica y se sugieren orientaciones para futuras investigaciones.
Estrategias, adaptación y ruinas. El despertar del arte chino contemporáneo y la búsqueda del diálogo (1978-2018)
Authors: Cecchi Franco
Published: January 2025

Conceived in the context of a broad investigation into the history of art and terri-tory, this article draws a broad trajectory of some of the most outstanding contributions of the artistic vanguard in China starting from the era of reform and opening inspired by Deng Xiaoping in 1978 with the goal of turning light it seeks the pursuit of a social, political and also urban dialogue, undertaken by a generation of artists who instigated a paradigm shift in contemporary art. Placing the focus on a history of art, more inter-connected and multidisciplinary and oriented towards cultural studies, we intend to bring new elements into artistic studies that have been expanding in recent decades in the context of globalization.
El retablo de estípites en la Baja Extremadura
Authors: Hernández Nieves Román
Published: January 2025

This work aims to study the typology of altarpieces that include estípite pilasters in its structure, focused on those located in southren Extremadura. In this sense, a series of elements are are analysed: concep of estípites, typers of altarpieces with estípite used in Extremadura, decorative elements, materials, and also, location with the Spanich and Extremadura temples. Addicionally, those masters involved in this typology of alterpieces are studied and referenced.
Cultura gráfica en los espacios sacros: consideraciones en torno a un redescubierto conjunto de grisallas en los límites de la antigua diócesis de Cartagena
Authors: Jaquero Esparcia Alejandro
Published: January 2025

The aim of this research is to look at in the visual sources that inspire the mural decorations made in the sacred spaces of Antique Cartagena’s diocese during the Early Modern Age. More of these paintings are occulted under repaints, poorly maintained, or completely disappeared. We will take the opportunity the restoration of a wall paintings made with the grisaille technique in the sacristy of the Assumption Church of Yeste (Albacete). Thus, the main objective of the research is to analyse the artistic culture that allow these authors to configure scenes in full harmony with the artistic models executed in the great artistic centres of the diocesan area. Likewise, we link it to the graphic sources that inspired these artists.
El incendio de la parroquia de Santa Marina en 1864. Pérdida del Sueño de San José de Murillo
Authors: Regalado González-Serna Víctor Daniel
Published: January 2025

This investigation analyse the fire that affected the Seville parish of Santa Marina on February 2nd 1864 reconstructing it. Traditionally, the accident has been attributed to an unfortunate candle, although this investigation provides new data on the matter giving new possibilities. Thanks to the judicial process developed after the fire we can understand this terrible event much better. Likewise, it will be able to contribute to the historiography of Spanish Baroque art with data on two unpublished canvases of Saint Joseph by Murillo that were lost in the fire, one of them dealing with the Dream of Saint Joseph.
Full 18S metabarcoding of environmental samples of various substrats with Minion Nanopore v1
Authors: Blandenier Quentin , Gibson Nicholas , K. Tice Alexander , E Jones Robert , P. Jones Erin , E. Baird Richard , A. Zurweller Brendan , W. Brown Matthew
Published: January 2025

We describe here a flexible protocol for eDNA metabarcoding with Oxford Nanopore's MinIon MK1C platform from sampling to sequencing. The first section summarizes some key steps of sampling and sample preservation for both aquatic and terrestrial environments. The second one describes the DNA extraction protocol with the DNeasy PowerSoil Pro Kit of Qiagen for different types of samples (i.e., soil, liquid and dead plant materials). Our DNA amplification and bead purification protocols are characterized in the third section. Finally, the library prep with the Native amplicon Barcoding Kit 96 V14 (SQK-NBD114.96) and sequencing with the R10.4.1 flow cells (FLO-MIN114) and MinION Mk1C device are presented in the last sections. This protocol has been optimized for protists (microbial eukaryotes) and 18S marker, but should be easily adjustable for other organisms, by modifying the sampling and DNA extraction sections, or other markers, even longer ones such as the full ribosomal operon, if need be. Our goal is to teach/train researchers from different fields and different expertise on obtaining nanopore sequences from environmental samples by guiding them from protocol to protocol, focusing on the key steps, and informing them of the expected results based on our 3 runs performed so far. A comprehensive bioinformatic pipeline to treat the data produced, as well as a methodological article discussing this method and the best ways to use it are in preparation.
FOMO's Impact on Consumer Loyalty: Beverage Industry Study in the Social Media Age
Authors:   LSPR Institute of Communication & Business, Indonesia, Harwinda Alfilonia , Aruman Akhmad Edhy ,   LSPR Institute of Communication & Business, Indonesia, Setyaningtyas Emilya ,   LSPR Institute of Communication & Business, Indonesia
Published: January 2025

This study investigates the rise of the brand ‘MIXUE’ that operates in the beverage sector, especially tea and ice cream-based drinks. They are known for their fresh tea products and unique ice cream variants. It explores the transient nature of hype in the franchise sector, particularly how the feeling of Fear of Missing Out (FOMO), driven by Social Media Marketing (SMM), product quality, value for money, and service quality, impacts customer loyalty and purchase intentions. Employing a deliberate sampling method, the research gathered data from 233 participants through questionnaires and analysed using SPSS and SEM-LISREL tools. The findings reveal that FOMO, alongside SMM, product quality, perceived value, and service quality, significantly influences customer loyalty. Notably, FOMO greatly affects loyalty and buying intent, but surprising dynamics are at play, such as the negative impact of excessive SMM and purchase intentions on loyalty. The results suggest that while value for money may decrease FOMO, it enhances purchase intention and loyalty, underscoring the importance of providing substantial value. This research provides new insights into the management strategies, indicating the effectiveness of using FOMO in marketing to boost loyalty, but warns against overusing SMM. It also highlights the roles of product quality, service, and value in cultivating FOMO and loyalty. The study's theoretical contribution lies in exploring how FOMO, SMM, product quality, value, and service influence consumer behaviour, suggesting that further research is needed to understand these dynamics fully.

Keywords: Fear of Missing Out (FOMO), Social Media Marketing (SMM), product quality, value for money, purchase intention.
Effective or Not? The Crisis Communication in Social Media Indonesia COVID-19 Team Affect Behavioural Intentions to Get Vaccination with Big Data Analysis
Authors:   LSPR Institute of Communication and Business, Indonesia, Pinariya Janette Maria , Yulianti Wulan ,   LSPR Institute of Communication and Business, Indonesia, Yunia Anita ,   LSPR Institute of Communication and Business, Indonesia, Diaz Ivan Aquiles Arias ,   LSPR Institute of Communication and Business, Indonesia
Published: January 2025

The COVID-19 epidemic, the most significant economic crisis to hit the planet in the previous fifty years of human history, is about to occur in 2020, and it saw an equally dire state of affairs in Indonesia's economy as elsewhere. To overcome this crisis, the government marketed the immunization program as a "game changer" for achieving herd immunity and the country's economic revival. Unfortunately, the vaccinations continue to have a low uptake. To avert this, a special committee must be formed to ensure a successful vaccination program to try and carry out various vaccine campaigns to gain full public awareness, one of which is through social media. This research used a mixed methods approach, combining quantitative and qualitative research techniques, mainly applied to social science theories and transformative paradigms. This research aims to measure the effectiveness of the COVID-19 team's crisis communication in delivering vaccine campaigns on social media, especially on Twitter, belonging to KPCPEN, a government-made group tasked with carrying out Indonesia's economy. The results show that greater crisis responsibility and response lead to higher behavioural intentions to vaccinate among netizens. Twitter data collection shows that netizens give positive tone tweets about booster vaccinations directed by the government. This is also supported by various communication strategy steps formed by the government so that people know about getting vaccines. Future research could compare remote communities that have difficulty accessing information from the government and measure the effectiveness of how it affects them.

Keywords: Indonesia vaccination, COVID-19, economic recovery, big data, social media.