bluuebunny/crossref_metadata_2025 huggingface dataset:
Geolocation of Fixed Emission Sources Produced by Artisan Brick Kilns in the Atmospheric Basin of the City of Juliaca, Peru
Authors: Tapia José Luis Pineda , Huamaní Edwin Huayhua , Monroy Kevin Fidel Quispe , Huahuachampi Milagros Lupe Salas , Sucasaca Robinson Chaiña , Flores Milton Edwar Humpiri , Vilca Dennis Enrique Mamani , Flores Cristian Abraham Cutipa , Ccopa Deyna Lozano
Published: November 2024

Objective: The study objective is to investigate the application of georeferencing systems to identify the geospatial location of fixed sources of atmospheric emissions produced by artisanal brickyards in the air basin of Juliaca city-Peru.
 
Theoretical Framework: Previous studies have shown that artisanal brickyards are a significant source of air pollution in developing urban and on the outskirts. Emissions of fine particles, nitrogen oxides and other pollutants from the burning of traditional fuels, such as firewood and coal contribute to the degradation of air quality and can have adverse effects on human health and the environment. The georeferencing application and geospatial analysis techniques in the atmospheric pollution study have allowed a better understanding of the spatial distribution of emission sources and their impact on the environment. These tools are essential to identify and map the artisanal brickyard locations and to evaluate their contribution to air pollution in urban and on the outskirts.
 
Method: The methodology adopted for this research includes data collection and compilation of existing information; georeferencing of brickyards through the use of geographic information systems (GIS); analysis of geospatial data for the identification of spatial patterns; preparation of thematic and spatial distribution maps; and the interpretation of results.
 
Results and Discussion: The study results highlight the importance of locating the fixed sources of emissions produced by artisanal brick factories in the Juliaca air basin. This precise spatial identification provides a solid basis for the formulation of policies and mitigation strategies aimed at reducing air pollution in the region, in addition to representing fundamental data for the use and exploitation of GIS for environmental protection and modelling, among others.
 
Research Implications: The results can be applied or influence practices in the environmental and forestry engineering field, the ICTs application, modelling and simulation, and territorial planning, among others.
 
Originality/Value: This study contributes to the literature using georeferencing techniques for environmental modelling purposes. The relevance and value of this research are evident in obtaining georeferenced points for the estimation of emission factors for the predictive calculation of volumes, flows and dispersion of pollutants in an air basin.
The Feminist Quest: Reimagining the Relationship between Language, Gender, and Identity in The Knife of Never Letting Go (2008) by Patrick Ness
Authors: Penfold Alice
Published: November 2024

This article examines the ways in which contemporary young adult (YA) fantasy novels can create subversive spaces to question gender norms and ideologies that shape discourses. Contemporary YA fantasy novels, I argue, can draw attention to how language and gender are socially constructed and offer new ways of perceiving and defining a sense of self that challenges Western society’s dominant patriarchal ideology. Young readers can see themselves but also imagine different possibilities of who they should or could be. Through close textual analysis of The Knife of Never Letting Go by Patrick Ness (2008), and drawing upon feminist poststructuralism, Bakhtinian theory, and YA fantasy scholarship, I consider the ways in which this contemporary YA fantasy novel presents the interconnectedness of language, gender, and identity and how the physical and metaphorical converge through the quest motif. I explore how social structures and dominant norms, including monolithic and governing meanings in gender and language, can be subverted and critiqued, giving young protagonists – and young readers – the opportunity to challenge gendered norms in the process of identity formation.
Is it possible to go from control to super responder to remission in asthma?
Authors: Blaiss Michael S.
Published: November 2024

Background: Asthma, a chronic airway inflammatory disease, traditionally focuses on symptom control and minimizing complications as per asthma guidelines. Recently, the concept of achieving clinical remission has emerged as a more ambitious treatment goal. Objective:
This review explores clinical remission (on and off treatment), super-responders, and complete remission (on and off treatment) in asthma. It also examines the potential of biologics in achieving clinical remission for severe asthma. Methods: A literature review on
clinical remission, super-responders, and complete remission in asthma, along with biologics and remission was conducted. Results: Leading allergist/pulmonologist groups and professional societies worldwide have proposed criteria for clinical remission. Whereas core elements
such as no systemic corticosteroids, no exacerbations, and stable and/or improved lung function for at least a year are generally agreed on, specific details remain under debate. U.S. guidelines incorporate stricter criteria for clinical remission. In addition, the term “super-responder”
describes patients with severe asthma and with major quality-of-life improvements after receiving biologics. Despite limited studies, biologics seem to produce remission rates (20‐40%), depending on the criteria used. Conclusion: A universally accepted definition
for clinical remission in asthma remains under development. The concept of super-responder requires further investigation in research and clinical settings. Whereas early studies show promise, biologic therapies, although revolutionary for severe asthma treatment, do not guarantee clinical
remission for most patients.
Basic concepts in preserving holistic well-being in interstitial lung diseases: A MIHRA and G-FoRSS collaborative summary
Authors: Saketkoo Lesley Ann , Obi Ogugua N. , Varga Janos , Poole Janet L. , Varjú Cecilia , Alexanderson Helene , Paik Julie J. , Pettersson Henrik , Regardt Malin , Saygin Didem , Shapiro Lee , Shenoi Susan , Chaudhry Humza A. , de Groot Ingrid , Domsic Robyn T. , Fligelstone Kim , Frech Tracy M. , Gupta Latika , Highland Kristin B. , Lanis Aviya , Machado Pedro M. , Maillard Sue , Rife Eileen C. , Sari Fulden , Shafranski Barbara , Valenzuela Antonia , Voet Nicoline B.M. , Volkmann Elizabeth R. , Wahezi Dawn M. , Patterson Karen C. , Russell Anne-Marie
Published: November 2024

Background: Interstitial lung diseases (ILD) are a heterogenous group of diseases that involve inflammation and/or fibrosis of the lung parenchyma. ILD can exert significant stress on a person’s extrapulmonary systems, eroding organ and physical function. Thus, ILD
can accelerate age-related vulnerabilities that lead to early onset frailty, which makes frailty prevalent in ILD at any age. Frailty confers a three-fold increase of, and predicts, mortality in ILD. Objective: To present a feasible approach to understanding and addressing
holistic health in ILD to fortify physical and psychological capacity markedly enhances a person’s tolerance of ILD and aging. Methods: From our previous published work that consisted of serial Medline and PubMed scoping reviews (with search terms such as frailty,
interstitial lung disease, ILD, idiopathic pulmonary fibrosis, IPF, systemic sclerosis, sarcoidosis, well-being), patient focus groups, ILD outcome measures deconstruction and linking to the World Health Organization’s International Classification of Disability, and nominal group processes,
we iteratively isolated factors that seem to accelerate and, importantly, protect against and reverse frailty. These factors were presented at The Eastern Pulmonary Conference in September 2024 and summarized herein. Results: The result is a collective statement that (a)
summarizes health-care system responsibilities in providing sustainable, humane environments for patients and clinicians; (b) advocates for early intervention and shared decision-making from the time of diagnosis to fortify well-being when living with ILD; and (c) offers guidance to fortify
physical, mental, and social well-being as well as health literacy and strength of patient voice. Conclusion: Proactive measures to protect against frailty begins at the time of diagnosis. Interventions that are incremental and based on patient priorities and preferences
introduce a feasible approach to holistic well-being.
Personalized management of aspirin-exacerbated respiratory disease: From clinical presentation to therapeutic strategies
Authors: Wallace Dana V.
Published: November 2024

Aspirin-exacerbated respiratory disease (AERD), defined as the triad of asthma, chronic rhinosinusitis with nasal polyps (CRSwNP), and development of upper- and/or lower-respiratory symptoms after exposure to aspirin or other cyclooxygenase-1 inhibitors, has a prevalence of up to 30%
for adults with asthma and with CRSwNP. The pathogenesis is likely due to a combination of abnormal genetic variants and environmental exposures, which results in types 1, 2, and/or 3 inflammation and dysregulation of arachidonic acid metabolism. Patients with AERD often fail to respond to
conservative medical treatment, including all topical corticosteroids, antileukotrienes, and saline solution irrigation; furthermore, short courses of SCS generally provide only temporary improvement. Advanced therapeutic options include endoscopic sinus surgery; aspirin treatment after aspirin
desensitization; and biologics, e.g., dupilumab, omalizumab, and mepolizumab. A successful and long-lasting clinical response often requires combination or sequential treatments with more than one of these therapeutic approaches. After a review of the efficacy, safety, and logistical
considerations of each of these therapeutic options, an algorithmic approach for patient management is presented.
Threatened Species of Amphibians and Reptiles from Vu Quang National Park and Their Conservation Values
Authors: Anh Pham Van , Dinh Anh Tran , Duc Minh Le , Danh Ky Nguyen , Canh Toan Thai , Viet Hung Nguyen , Thanh Tu Bui , Trong Hoang Dinh , Van Thuy Tran , Thi Hong Vien Nguyen
Published: November 2024

Based on five field surveys in 2023 and 2024, we herein provide a list of 24 threatened species of amphibians and reptiles from Vu Quang National Park, Ha Tinh Province. Among them, four species are listed in the Governmental Decree No. 64/2019/ND-CP, 13 species are listed in the Governmental Decree No. 84/2021/ND-CP, 13 species are listed in the CITES Appendices, 17 species are listed in the Vietnam Red Data Book (2007), and 13 species are listed in the IUCN Red List (2024). Seven species with the highest level of conservation priority due to their small populations are Python molurus, Ophiophagus hannah, Platysternon megacephalum, Cuora cyclornata, Cuora galbinifrons, Sacalia quadriocellata, and Indotestudo elongata. The major threat to the herpetofauna of the national park is illegal hunting.
Antibacterial and Antifungal Characteristics of Hydroxyl Apatite Composite Material Coated on Nitrogen-doped TiO2 (HA/N-TiO2)
Authors: Thi Hue Nguyen , Thi Ha Giang Nguyen , Hoang Nam Nguyen , Thanh Sang Ho , Viet Ha Mai , Thi Ha Nguyen
Published: November 2024

Photocatalytic technology using nano-material HA/TiO2 has been widely applied worldwide to treat pollutants, kill airborne gram-negative and gram-positive bacteria, and candida fungi, especially indoor air. In this study, HA/N-TiO2 material was synthesized with oxidation-reduction absorption properties and  photocatalytic ability in the visible-light irradiation that helps reduce costs compared to using ultraviolet light (UV). The structure and morphology of the material were evaluated using XRD, SEM methods, showing HA/N-TiO2 has a spherical crystal structure, sharp, and uniform with particle sizes ranging from 10 to 30 nm. To assessment of the antibacterial and antifungal efficiency of the material, we inoculated the culture of microorganisms on 10x10 cm tiles coated with HA/N-TiO2 solution with the coating thickness of 0.3 µm. This coating thickness resulted in optimal antibacterial efficacy. With continuous fluorescent light 20 W exposure for 1-9 hours, up to 96-100% of inoculated bacteria were eliminated. In real-scale experiments on the wall surfaces, the quantity of bacteria and mold decreased by 20% after 30 days when treated with HA/N-TiO2 solution compared to the control sample. HA/N-TiO2 material has the potential to treat bacteria and fungi on a practical scale if there is further cost-benefit analysis extensive research.
Nutrition Knowledge, Attitude, and Practice of Students in the Faculty of Environmental Sciences, VNU University of Science
Authors: Thi Minh Hang Tran , Thi Quynh Nga Nguyen
Published: November 2024

Healthy nutrition plays a crucial role in improving health and preventing disease within communities. This study aims to evaluate the current state of nutrition knowledge, attitudes, and practices, as well as the factors influencing nutritional choices among students in the Faculty of Environmental Sciences. A questionnaire survey method was used for data collection. The research findings indicate that 80% of students possess good general knowledge about nutrition, with female students representing 85,2% and male students 73,2%. Regarding attitudes, 74,7% of students display a positive general attitude toward nutrition. Students majoring in Food Science and Technology exhibit a higher rate of positive attitudes (87,0%) compared to those in Environmental Engineering Technology (73,7%) and Environmental Sciences (86,4%). Furthermore, 74,7 % of students demonstrate good general practices in nutrition. Notably, students living with their families tend to have worse nutritional practices than those residing in boarding houses or dormitories. The study also reveals that students with good nutritional knowledge and positive attitudes are more likely to have better nutritional practices. Factors influencing students' nutritional choices, in descending order of importance, include: i) Hygiene and safety; ii) Nutritional and health benefits; iii) Costs and prices; iv) Environmental protection; v) Personal interests and habits; and vi) Convenience.
Síndrome del túnel carpiano
Authors: Levy Amoldo , Ortega Elmer
Published: November 2024

La compresión del nervio mediano dentro del túnel carpiano contra el ligamento transverso origina el síndrome del túnel carpiano (STC). Afecta a 1 % de la población general y el riesgo de padecer síntomas en el transcurso de la vida ea 10%. El STC ea la neuropatía por atrapamiento más común: la mano dominante se afecta con mayor frecuencia. Se estudiaron 1548 casos en 20 años en Call, con una relación hombre-muer de 1:4; solamente 7%de casos fueron remitidos como STC. Casi 78% presentaron signo de Tlnel positivo. Las parestesias se observaron en más de 80% de los casos. A 19% de los pacientes se les encontró debilidad muscular, siendo el abductor del pulgar el músculo más comprometido. El reposo fue efectivo en 33% de los casos; la infiltración en 34% y 92.6% de loa pacientes mejoraron con cirugía.
Quality in aesthetic medicine and surgery. a systematic review of clinical practice guidelines
Authors: Maes-Carballo Marta , Estrada-López Carlos Roberto , Martínez-Martínez Carmen , Alberca-Remigio Claudia , Cámara-Martínez Cristina , Josa-Martínez Benito Miguel , Trigueros Rubén
Published: November 2024

Background:Guidelines in medicine are essential tools to provide quality and standardised medical care. We analysed the quality of aesthetic medicine guidelines.
Methods: A systematic review with a prospective registration protocol (https://osf.io/8pdyv) of databases (MEDLINE, EMBASE, Web of Science, Scopus, CDSR), web pages of scientific societies and grey literature was done from inception to February 2023 and without language restrictions. Quality was evaluated using AGREE II (% of the maximum score), RIGHT (% of the total 35 items) and a shared decision making (SDM) quality assessment tool (31 items score) individually and in duplicate, respectively.
Results:Six (86%) guidelines were classified as not recommended; one (14%) was recommended with modifications, and all were classified as poorly reported (7/7; 100%). The median overall quality was 27% (IQR: 26-43) and 26% (IQR 1536) for AGREE II and RIGHT, respectively. No document used these tools for its development. SDM appeared superfluity in almost all of the guidelines explored.
Conclusions:Aesthetic medicine and surgical guidelines had low quality and must be improved. There is a wide range of improvement, especially in applicability, reporting of evidence, recommendations, conflict of interest, quality control and SDM. These guidelines require a rigorous methodology based on systematic reviews to ensure quality evidence-based recommendations.
3d printing applied to building development around the world: a systematic literature review
Authors: Vélez Loaiza Sebastián , Ortiz Albert , Gómez Daniel , Thomson Peter , García Jose Jaime , Sandoval Eimar
Published: November 2024

The construction industry is undergoing a transformation towards automation, and 3D printing is at the forefront of this revolution. However, to optimise 3D printing in construction, it is crucial to consider the printer’s scale, the printing material’s rheological properties, and the printed structure’s mechanical properties. This paper provides an overview of the state of the art in this field, including the promising technologies, such as D-Shape and Contour Crafting, used in building applications. The paper also compares the use in 3D printing of conventional materials, like concrete, with non-conventional earth-based materials, such as sand, clay, and mud, or combinations with cementing materials. This review highlights the need for more research on alternative materials to concrete, particularly in developed countries. Nevertheless, earth-based materials offer significant potential for 3D printing in developing countries, where they are readily available. However, further research is necessary to improve the mechanical properties of 3D-printed elements, particularly for large-scale structures, to ensure their reliability and safety, making 3D printing a mainstream building method.
Adaptación a la variabilidad climática como estrategia para la regulación de los servicios hidrológicos en microcuencas abastecedoras de acueductos rurales
Authors: Bolaños Portilla Isabel Cristina , Restrepo Tarquino Inés
Published: November 2024

A nivel rural, las microcuencas abastecedoras están sufriendo los impactos de la variabilidad climática, lo cual agudiza los conflictos sociales y ambientales por la escasez de agua, como en el caso de la mayoría de acueductos rurales colombianos. Adicionalmente, la prestación de servicios de agua y saneamiento, la gestión de recursos y la toma de decisiones para adaptarse a los cambios del clima se ven afectados por la brecha existente entre zona urbana y rural. La disminución de la oferta de los servicios ecosistémicos hidrológicos incrementa la vulnerabilidad del sistema humano y natural, concebido en esta investigación como el socio ecosistema. En Colombia, el marco regulatorio del abastecimiento y usos múltiples del agua en la zona rural es todavía incipiente, así como lo es el estudio integrado de variables del socio ecosistema a partir del cual se puedan plantear opciones de adaptación útiles para los planeadores de las cuencas. Por ello esta investigación tuvo como propósito contribuir con la regulación de servicios ecosistémicos hidrológicos en microcuencas abastecedoras de acueductos rurales mediante el desarrollo de un modelo conceptual como herramienta para la toma de decisiones en adaptación con enfoque de protección al socio ecosistema. Este libro presenta los resultados de la investigación doctoral, con beca financiada por Colciencias, que propone herramientas metodológicas validadas y ajustadas a contextos reales rurales, con las cuales se puedan conocer los puntos críticos que afectan directamente el abastecimiento y que mediante la acción de los planeadores de las cuencas puedan tener opciones de adaptación a la variabilidad climática, protegiendo los servicios ecosistémicos hidrológicos y disminuyendo la vulnerabilidad de las microcuencas abastecedoras frente a la escasez de agua.
ПЕРСПЕКТИВЫ КОМПЛЕКСНОЙ ОЦЕНКИ ПОЧВЕННОГО ПЛОДОРОДИЯ НА ОСНОВЕ ИНТЕРПРЕТАЦИИ ДАННЫХ ДИСТАНЦИОННОГО ЗОНДИРОВАНИЯ ЗЕМЛИ
Authors: Якушев В.В.
Published: November 2024

Показана актуальность развития дистанционных методов оценки состояния сельскохозяйственных угодий на основе спутниковых и аэрофотоснимков, полученных в различных спектральных диапазонах. Даны описание математического аппарата, используемого при обработке данных ретроспективного анализа доступных спутниковых снимков за несколько предшествующих лет, и выявление на их основе различных по плодородию участков. Приведены результаты кластеризации данных на примере пространственно-ориентированных карт продуктивности, полученных с помощью ретроспективного анализа снимков сельскохозяйственного поля в Краснодарском крае (Усть-Лабинский район).

The article shows the relevance of the development of remote methods for assessing the condition of agricultural land based on satellite and aerial photographs obtained in various spectral ranges. The description of the mathematical apparatus used in the processing of data from a retrospective analysis of available satellite images for several previous years and the identification of different fertility sites based on them is given. The results of data clustering are presented using the example of spatially oriented productivity maps obtained using a retrospective analysis of images of an agricultural field in the Krasnodar Territory, Ust-Labinsk district.
ВЛИЯНИЕ ДЛИТЕЛЬНОГО ПРИМЕНЕНИЯ УДОБРЕНИЙ НА ПЛОДОРОДИЕ ВЫЩЕЛОЧЕННОГО ЧЕРНОЗЕМА И ПРОДУКТИВНОСТЬ САХАРНОЙ СВЕКЛЫ В ЦЧР
Authors: Девятова Т.А. , Минакова О.А.
Published: November 2024

Показано улучшение агрохимического состояния чернозема, выщелоченного при длительном внесении минеральных удобрений (N135P135K135) под сахарную свеклу в сочетании с 25 т/га навоза в пару: повысилось содержание подвижных форм NPK, а также гумуса и нитрификационная способность почвы. Эта доза удобрений не способствовала значительному подкислению почвы. Длительно используемые удобрения повышали урожайность корнеплодов сахарной свеклы и продуктивность 1 га пашни на 20,9-39,9 и 20,4-37,9% соответственно; отмечался рост содержания сухого вещества корнеплодов на 1,4-2,2 абс. %, 1 кг NPKобеспечивал получение 5,33-13,1 кг корнеплодов.

The improvement of the agrochemical state of leached chernozem with prolonged use of the N135P135K135 system of mineral fertilizers for sugar beet in combination with 25 t/ha of manure in fallow has been proven, which resulted in an increase in the content of mobile forms of NPK, as well as the content of humus and the nitrification ability of the soil. This dose did not contribute to significant acidification of the soil. Long-term fertilizers increased the yield of sugar beet root crops and the productivity of 1 ha of arable land by 20.9-39.9% and 20.4-37.9%, respectively; there was an increase in the dry matter content of root crops by 1.4-2.2 abs.%. 1 kg of NPK provided 5.33-13.1 kg of root crops.
СРАВНИТЕЛЬНАЯ ХАРАКТЕРИСТИКА ДЕРНОВО-ПОДЗОЛИСТЫХ ПАХОТНЫХ И ЗАЛЕЖНЫХ ПОЧВ МОЖАЙСКОГО РАЙОНА
Authors: Наумов В.Д. , Стрелков Д.А. , Седых В.А. , Каменных Н.Л. , Шмакова К.А.
Published: November 2024

Почвенный покров Можайского района представлен дерново-подзолистыми почвами, различающимися по степени проявления дернового и подзолистого процессов почвообразования. По гранулометрическому составу преобладают среднесуглинистые разновидности, сформированные на моренных средних суглинках. Установлено, что дерново-подзолистые пахотные и залежные почвы разного возраста незначительно различаются по мощности гумусового горизонта (2,1 до 2,3 %), характеру распределения гумуса по профилю, реакции среды, суммой поглощенных оснований, гидролитической кислотности и т.д. На пашне коэффициент почвенного плодородия составляет – 0,62, на залежи возрастом до 10 лет – 0,63, возрастом от 10 до 20 лет – 0,64, возрастом более 20 лет – 0,61.

The soil cover of Mozhaisk district is represented by sod-podzolic soils, differing in the degree of manifestation of sod and podzolic soil formation processes. The granulometric composition is dominated by medium loamy varieties formed on moraine medium loams. Studies have found that sod-podzolic arable and fallow soils of different ages differ slightly in the thickness of the humus horizon (2.1 to 2.3%) and in the nature of the distribution of humus along the profile, the reaction of the medium, the amount of absorbed bases, hydrolytic acidity, etc. On arable land, the coefficient of soil fertility is 0.62, for deposits up to 10 years old – 0.63 and for deposits aged 10 to 20 years – 0.64, for deposits over 20 years old – 0.61.
ЭФФЕКТИВНОСТЬ МИНЕРАЛЬНЫХ УДОБРЕНИЙ ПРИ ВЫРАЩИВАНИИ ОЗИМОЙ ПШЕНИЦЫ В УСЛОВИЯХ НЕУСТОЙЧИВОГО УВЛАЖНЕНИЯ СТАВРОПОЛЬСКОГО КРАЯ
Authors: Сычев В.Г. , Гречишкина Ю.И. , Матвиенко А.В.
Published: November 2024

Обобщены данные по внесению минеральных удобрений, урожайности озимой пшеницы и гидротермическим коэффициентам за период с 1996 по 2023 г. Объектом исследования выступила зона неустойчивого увлажнения, рассмотренная на примере данных по Шпаковскому округу Ставропольского края. Данные разделены на 3 группы по показателю ГТК: оптимальнаявлагообеспеченность (0,9<ГТК<1,1), пониженная влагообеспеченность (ГТК<0,9), повышенная влагообеспеченность (ГТК>1,1). Корреляционный анализ для первой группы (оптимальная влагообеспеченность) выявил сильную взаимосвязь эффективности азота и фосфора с урожайностью озимой пшеницы (r=0,93 и r=0,95). По второй группе (пониженная влагообеспеченность) взаимосвязь умеренная (r=0,56 и r=0,39), для третьей группы (повышенная влагообеспеченность) – сильная с азотом (r=0,80) и умеренная с фосфором (r=0,60). Связь с калием для всех трёх групп незначительная.

The data on the application of mineral fertilizers, winter wheat yields and hydrothermal coefficients for the period from 1996 to 2023 are summarized. The object of the study was an unstable humidification zone, considered on the example of data on the Shpakovsky district of the Stavropol Territory. The data are divided into 3 groups according to the GTC indicator: optimal moisture supply (0.9<GTC<1.1), reduced moisture supply (GTC<0.9), increased moisture supply (GTC>1.1). Correlation analysis for the first group revealed a strong correlation between nitrogen and phosphorus application and yield (r=0.93 and r=0.95). In the second group, the relationship is moderate (r=0.56 and r=0.39), for the third – strong with nitrogen (r=0.80) and moderate with phosphorus (r=0.60). In our opinion, the relationship with potassium is insignificant for all three groups.
Эффективность магниевого удобрения АгроМаг в агроценозе с картофелем в зависимости от почвенно-климатических условий
Authors: Аканова Н.И. , Козлова А.В. , Серегина И.И. , Полухин А.А. , Кутырева Д.Е.
Published: November 2024

Приведены результаты исследования эффективности магнийсодержащего удобрения в качестве мелиоранта в севообороте с картофелем. Выявлено прямое действие и последействие мелиорантов линейки АгроМаг марок А и В на урожайность и качество картофеля сорта Коломба, а также на изменение агрохимических и физико-механических свойств темно-серых лесных почвы. Установлено, что внесение магнийсодержащего мелиоранта увеличивает урожай клубней картофеля, наибольший урожай был получен при дозе 600 кг/га АгроМаг марка В и составил 18,0 т/га.

The article presents the results of a study of the effectiveness of a magnesium-containing fertilizer as an ameliorant in a crop rotation with potatoes The direct effect and aftereffect of the AgroMag line of ameliorants of brands A and B on the yield and quality of the Colomba potato variety, as well as on changes in the agrochemical and physical-mechanical properties of dark gray forest soils, were revealed. It was established that the introduction of a magnesium-containing ameliorant increases the yield of potato tubers; the highest yield was obtained at a dose of 600 kg/ha of AgroMag grade B and amounted to 18.0 t/ha.
АГРОЭКОЛОГИЧЕСКАЯ ОЦЕНКА ПРОДУКТИВНОСТИ ЯРОВОЙ ПШЕНИЦЫ В АГРОЛАНДШАФТАХ НИЖНЕКАМСКОГО РАЙОНА РЕСПУБЛИКИ ТАТАРСТАН
Authors: Прохоров А.А. , Куприянов А.Н. , Борисов Б.А. , Ефимов О.Е.
Published: November 2024

В рамках работы, проведена оценка вклада группы основных агроэкологических факторов в итоговую урожайность яровой пшеницы с использованием модели метода главных компонент и многомерной регрессии. Урожайность пшеницы по результатам 2022 года варьировала в пределах от 22,1 до 53,6 ц/га при среднем значении 40,8 ц/га. Установлено, что в условиях лесостепной зоны Республики Татарстан наиболее значимые факторы, влияющие на урожайность яровой пшеницы - группа переменных, определяющих условия тепло- и влагообеспеченности, а именно: сумма осадков за период вегетации, сумма температур за период вегетации, морфометрические параметры крутизны и экспозиции склонов. Способ и глубина обработки почвы не оказывали существенного влияния на итоговую урожайность, как и ряд других анализируемых переменных: формы используемых удобрений, предшественники в севообороте и т.д. Такая переменная как экспозиция склона не была достоверно связана с урожайностью. При корреляции методом Спирмена R=0,30 ед., что не является достоверным при n=33, но при этом экспозиция оказывала существенное воздействие на обеспеченность температурами > 10°С и количество осадков (R=0,78 ед. и - 0,77 ед.) – наиболее сильные и важные факторы формирования урожайности. При проведении анализа различий средних с использованием критерия Тьюки при уровне значимости р=0,05 в подвыборках при группировке по сортам и агроэкологическим группам земель не было установлено достоверных различий.

Within the framework of the work, the contribution of the group of main agroecological factors to the final yield of spring wheat was assessed using the principal component method model and multivariate regression. Wheat yields based on the results of 2022 ranged from 22.1 c/ha to 53.6 c/ha with an average value of 40.8 c/ha. It was established that in the conditions of forest-steppe zone of Tatarstan the most significant factors affecting the yield of spring wheat are a group of variables that determine the conditions of heat and moisture availability, namely: the amount of precipitation during the growing season, the sum of temperatures during the growing season, morphometric parameters of slope steepness and exposure. The method and depth of tillage did not have a significant effect on the final yield, as well as a number of other variables analyzed: forms of fertilizers used, predecessors in crop rotation, etc. Such variable as slope exposure was not significantly related to yield. At correlation by Spearman's method R=0.30 units, which is not reliable at n=33, but at the same time the exposure had a significant effect on temperature availability > 10° and precipitation (R=0.78 units and -0.77 units) - the strongest and most important factors of yield formation. When analyzing the differences of mean differences using Tukey's criterion at the significance level of p=0.05, no significant differences were found in sub-samples when grouped by variety and agro-ecological land groups.
К 120-ЛЕТИЮ СО ДНЯ РОЖДЕНИЯ ученого-агрОхимика АЛЕКСАНДРА ВАСИЛЬЕВИЧА ПЕТЕРБУРГСКОГО
Authors: Налиухин А.Н. , Торшин С.П. , Смолина Г.А.
Published: November 2024

Статья посвящена памяти известного учёного-агрохимика, ведущего специалиста по питанию растений профессора Александра Васильевича Петербургского. Показано становление выдающегося ученого как исследователя, педагога и руководителя. Описан вклад А.В. Петербургского в развитие основ агрохимической науки, в разработку агроприёмов, направленных на повышение урожайности сельскохозяйственных культур.

The article is dedicatedto the memory of the famous scientist-agrochemist,a leading specialist in plant nutrition, Professor Alexander Vasilyevich Peterburgsky. The formationof an outstanding scientist asa researcher, teacher and leader is shown. The contribution of A.V. Peterburgskyto the development of the foundations of agrochemical science, to the development of agricultural techniques aimed at increasing crop yieldsis described. The article was written in connection with the 120th anniversaryof A.V. Peterburgsky.
Harnessing the Crystal Structures of Perfluoroiodoarenes (PFIArs) for the Design of Halogen-Bond Donor Catalysts
Authors: KATO Masayuki , NAKASHIMA Fumio , OHTSUKA Naoya , NISHIOKA Yukina , IZUMISEKI Atsuto , FUJINAMI Takeshi , OISHI Shunya , SUZUKI Toshiyasu , MOMIYAMA Norie
Published: November 2024

This study investigates the use of perfluoroiodoarenes (PFIArs) as halogen-bond (X-bond) donors in anion-binding catalysis, focusing on the design and effectiveness of two-point X-bond donor catalysts. A comprehensive analysis was carried out, including crystal structure determination, density functional theory (DFT) calculations, and binding constant (K) measurements, to assess catalyst performance. While structural parameters, such as dihedral angles and C–I bond lengths, demonstrated strong correlations between the crystal structures and computed models, their relationship with K values and reaction yields was weaker. Correlation analysis demonstrated that the Gibbs free energy (ΔG) values of the chloride (Cl–) complexes were more strongly correlated with the K values (r = +0.74) and moderately correlated with the yields (r = +0.52), compared to atomic distances. The two-point X-bond design, exemplified by catalysts such as 1a-syn, exhibited superior Cl–-binding ability, with a K value of 9.3 × 103 M–1, a 40-fold increase compared to C6F5I. The findings highlight that, while structural information can be deduced from both crystal and computational data, precise conformational control, as indicated by ΔG values, is a more reliable predictor of catalytic performance. These results provide important quantitative insights for the development of efficient X-bond-driven organocatalysts, underscoring the critical role of ΔG values in designing high-performance catalysts.
Access to Arynes from Arenes via Formal Dehydrogenation: Increased Efficiency and Scope, Synthetic Applications and Mechanistic Analysis
Authors: Roberts Riley , Metze Bryan , Javaly Nicole , McCormick Theresa , Stuart David
Published: November 2024

Arynes undergo a wide range of diverse chemical transformations making them highly versatile reactive in-termediates for organic synthesis. Access to arynes has long been dominated by pre-functionalized reagents such as the venerable o-trimethylsilylaryl triflate class of substrates. However, a move toward the development of methods to access arynes that are both mild and efficient has prompted research into aryl “onium” aryne precursors. We have leveraged aryl “onium” species as intermediates in an overall net dehydrogenation of simple arenes as an efficient way to generate and trap arynes. Herein, we describe two strategies to achieve mild and efficient access to arynes. 1) The development of a one-pot method that converts simple arenes into aryl thianthrenium salts and uses them in situ to generate arynes; the net transformation of arene to trapped aryne is achieved within two hours. 2) The development of a two-step process to convert arenes into aryl(Mes)iodonium salts and ultimately trapped arynes to expand the scope of arenes compatible; the net transformation is complete within four hours. Mechanistic analysis through competition experiments, deuterium kinetic isotope effects (DKIE) and Density Functional Theory (DFT) provide key insight into the similarity and differences of the two approaches described in this work and yield a user’s guide for selecting the appropriate strategy based on the arene.
Structural Insights into the Mechanism of a Vanadium-Dependent Bromoperoxidase Enabled by High-Resolution Cryo-EM
Authors: Hessefort Logan Z. , Williams Dewight R. , Biegasiewicz Kyle F.
Published: November 2024

Vanadium-dependent haloperoxidases (VHPOs) are a uniquely robust class of enzymes capable of performing electrophilic halogenation of organic substrates. Despite their emerging biotechnological significance, the precise catalytic and halide-selection mechanisms of VHPOs under native conditions remains largely unexamined. Herein, we leverage single-particle cryogenic transmission electron microscopy (cryo-EM) to provide insight into the catalytic mechanism of the vanadium-dependent bromoperoxidase from Corallina pilulifera (CpVBPO) under catalytically relevant conditions. Specifically, we have collected the first set of high-resolution cryo-EM structures of CpVBPO in four catalytically relevant states including binding to phosphate, orthovanadate, orthovanadate and bromide, and orthovanadate and hydrogen peroxide. The collected structures, resolved at 2.2 to 3.2 Å, reveal deviations from previously reported X-ray diffraction (XRD) structures, particularly in the geometry of the vanadate cofactor and key residue interactions in the active site. Our findings suggest a trigonal planar, metavanadate-like geometry for the vanadate cofactor in the resting state, contradicting the commonly proposed orthovanadate geometry containing an apical hydroxo ligand. Furthermore, the dynamic roles of residues Asp335 and Leu337 in halide specificity in the catalytic cycle are proposed through observed conformational changes upon bromide binding. Using pKa calculations and structural analyses, a mechanism for generating hypobromous acid, mediated by His487, is presented. This study not only refines the structural and mechanistic understanding of CpVBPO, but also demonstrates the capabilities of cryo-EM to capture native-like enzyme structures under catalytically relevant conditions, offering a more informative approach for investigating the mechanistic features of VHPOs.
Theory-driven Discovery of Thermally Stable Mechanophore for Self-strengthening Materials
Authors: Jiang Julong , Wang Zhi Jian , Staub Ruben , Harabuchi Yu , Varnek Alexandre , Gong Jian Ping , Maeda Satoshi
Published: November 2024

Mechanophores that readily undergo bond cleavage upon mechanical stimuli normally contain a highly strained ring or reactive unit with weak bonds, which are usually thermally unstable. Here, we propose a general theory-driven procedure for selecting thermally stable radical-type mechanophore which can be used in self-strengthening materials. First, following our previous work, it is confirmed that a conformational motif called “node” along the force transduction direction enhances the force effect by generating a severe distortion on the breaking covalent bond. Molecules possessing bridged rings are ideal candidates to have a “node”, as the bridged structure helps to fix the key dihedral angle. Our computational exploration then focused on camphanediol and pinanediol, which do not have highly strained ring or intrinsically weak covalent bond, but a node ensured by a small dihedral angle. Our simulations predicted that polymer chains including these molecular skeletons easily undergo a C−C bond homolysis under relatively low tensile force and efficiently generate mechanoradicals. Subsequently, our automated reaction path exploration calculations unveiled the fate of the mechanoradicals by enumerating their possible reaction channels, and suggested that camphanediol can generate long-lived radicals, which can be utilized to develop self-strengthening materials. Therefore, we prepared double-network (DN) hydrogels containing camphanediol moiety and found that these novel DN hydrogels do have a good self-strengthening performance. Moreover, thanks to the present design guideline not assuming strained rings or weak bonds, such a camphanediol-containing DN hydrogel showed a good thermal and UV stability.
DFT Studies on the Ground State, First Singlet Excited State, and Triplet State of Triphenylamine and Its Dimer
Authors: Johns Malachi , Shahbaz Muhammad , Wang Lichang
Published: November 2024

Density functional theory (DFT) calculations were carried out to study triphenylamine and its dimer linked by methyl groups in order to understand the degeneracy and conjugation in Wannier organic small molecule (OSM) dimers. Both molecules’ structures are optimized in the ground state S0, the first singlet excited state S1, and the triplet state T1, with dichloromethane and toluene as the solvents, at the B3LYP/6-31+g(d,p) level of theory. We report optimized parameters for each state of each molecule in each solvent, as well as the UV-Vis, phosphorescence, and fluorescence spectra. The dimer’s combination of electronic degeneracy and conjugation result in a higher absorption intensity at longer wavelengths than triphenylamine, which could pave the way for future pivotal research in the rational design of OSMs for organic solar cells by allowing simultaneous absorption intensity to increase and wavelength tunability. A discussion was made on the analysis of coherent double excitations unique to Wannier OSM dimers.
STD and WLOGSY NMR Based Fingerprinting Reveals Subtle and Biologically Relevant Differences in Short Linear Motif Binding
Authors: Rylands Marwaan , Kusza Daniel , Clarke David , de la Torre Beatriz , Albericio Fernando , Edkins Adrienne , Veale Clinton
Published: November 2024

Interactions between Short Linear Motifs (SLiMs) and a partner domain are commonly exploited as simplified functional models of transient Protein-Protein Interactions (PPI) for characterizing interfacial associations between partner proteins. In this study, we report the use of a ligand-observed NMR approach, where through unambiguous assignment of 1H resonances of two closely related SLiMs, whilst bound to their partner domain (HopTPR2A ), we could assign STD and WLOGSY NMR signals to specific regions in the peptide backbone. These data revealed subtle alterations in magnetization transfer, resulting from changes in the binding mode of each SLiM respectively. The ability to detect and compare these changes at sub-residue resolution, provided differing fingerprints of SLiM binding. This approach therefore represents a broadly accessible method for identifying binding hot spots and interrogating the impact of structural variations on SLiM-domain interaction stability, and by extension transient PPIs.
Assisted Nanopatterning of Tin-based Inorganic Resist: Effect of Peripheral Functional Group Population on Resolution and Sensitivity
Authors: Nandi Santu , Ghosh Ketaki , Kumar Sunil , Mondal Iswar Chandra , Chauhan Manvendra , Khillare Lalit , Kumar Sharma Satinder , E Gonsalves Kenneth , Ghosh Subrata
Published: November 2024

While inorganic resists are emerging as possible potential candidates for sub-10 nm node semiconductor fabrication, fundamental understanding on such promising chemical compositions is inevitably paramount to confront the concerning challenges associated with inorganic resists. Given that assisted nanopatterning of inorganic resists may significantly improve the patterning capability of inorganic resists along with addressing the vertical shrinkage issue of resist film during processing and patterning to a greater extent, we present an interesting fundamental aspect of matrix parameters on the sensitivity, resolution and extent of film shrinkage. We have shown that the population of peripheral functional groups on the organic matrix plays a major role in determining the resolution and sensitivity of the resist composition, and highly balanced presence of functional groups per matrix unit is very critical. Also, the structural features of the matrix play an important role in governing the overall sensitivity. Using calix-arene scaffold as a matrix and tin oxohydroxide as inorganic component, the new resist compositions have been explored for sub-20 nm patterning with sharp features using electron beam lithography. We successfully printed ~22 nm line/space (L/S) patterns with LER of 2.10 ± 0.03. Finally, we have established through structure-performance relationship studies that matrix assisted nanopatterning has potential to address the shrinkage of inorganic resist film. The radar chart diagram established the co-relation between matrix structure and resist performance.
ОБ ОДНОМ МЕТОДЕ ПОСТРОЕНИЯ НЕРЕГУЛЯРНОЙ СЕТКИ ДЛЯ ОДНОМЕРНОГО УРАВНЕНИЯ КОНВЕКЦИИ-ДИФФУЗИИ
Authors: Ладыгин С. А. , Карачурин Р. Н. , Шильников К. Е. , Рябов П. Н.
Published: November 2024

В данной работе предлагается новый метод построения нерегулярной сетки для численного решения задач, содержащих одномерное уравнение конвекции-диффузии, часто встречающегося в различных областях вычислительной математики, физики и химии. Традиционные подходы либо используют регулярные сетки с большим числом узлов, либо адаптивные сетки, требующие перестройки на каждом шаге решения, что может быть вычислительно затратным. Наш метод основан на преобразовании неоднородной сетки в равномерную с помощью функции локальных деформаций, определяемой на основе критерия монотонности. Это позволяет получать монотонное решение на сетке с существенно меньшим числом узлов, повышая тем самым экономичность разностной схемы. Мы рассматриваем как стационарное, так и нестационарное уравнения конвекции-диффузии, описывая соответствующие алгоритмы построения сеток для дивергентной и недивергентной форм записи конвективных членов. Приведены примеры применения метода к различным задачам, демонстрирующие его преимущества по сравнению с существующими подходами на регулярных сетках. Представленный подход сочетает в себе преимущества нерегулярных сеток для повышения эффективности решения и использование критерия монотонности для обеспечения устойчивости схемы, расширяя возможности численных методов для дифференциальных уравнений.
A DYNAMIC ANALYSIS OF THE IMPACTS OF A CONSUMPTION TAX INCREASE AND A PRODUCTIVITY SHOCK: CALIBRATED FOR THE BRAZILIAN ECONOMY
Authors: Giudici Thiago Drummond de Mendonça
Published: November 2024

Objective: Analyze the effects of high consumption tax on key macroeconomic variables.
 
Method: The analysis employs both a Dynamic General Equilibrium (DGE) model and a Dynamic Stochastic General Equilibrium (DSGE) model, calibrated to the Brazilian economy. The models simulate the impact of an increase in the consumption tax on key macroeconomic variables and the impact of a productivity shock in an economy with and without taxation, respectively.
 
Results and Discussion: The results show that an increase in the consumption tax leads to a gradual decline in the capital stock and a sharp reduction in labor supply. Furthermore, productivity shocks have weaker positive effects on investment, output, consumption, and the capital stock in an economy with high taxation compared to one without it. The discussion emphasizes the importance of these findings in understanding the trade-offs between taxation and economic activity.
 
Research Implications/Value: The findings suggest that effective allocation of tax revenues—such as investments in infrastructure, education, and technology—is essential to mitigate the negative impacts of consumption taxes on economic performance and foster long-term productivity and growth.