bluuebunny/crossref_metadata_2025 huggingface dataset:
Voie négative, vue négative: Le théâtre de l’appel de Valère Novarina
Authors: Hong Inhye
Published: April 2023

Negative Path, Negative View: Valère Novarina's Theatre of Appeal In Novarina’s work, the word establishes a “lyrical gesture” : it calls. Since the appearance of what is called constitutes the drama itself, we can consider the lyricism as communication between the subject and the object as the process of creation. This creative gesture is doubly negative. First of all, the writer does not exist anymore in the creation process accomplished with the spectators. Secondly, Novarinian fiction is defined by its negative qualities : informal and timeless, it develops a negative view that opens behind the language.
La purification ardente et l’échec. Antonin Artaud lu par Josep Palau i Fabre
Authors: Castella-Martinez Sergi
Published: April 2023

Fiery Purification and Failure: Antonin Artaud read by Josep Palau i Fabre

Antonin Artaud’s « Théâtre de la cruauté » consists in the extreme display of the conflictive nature of the world. The Catalan poet Josep Palau i Fabre highlighted the poetic and negative dimensions of Artaud’s project and insisted on its failure, addressing its impossible objectivation and its similarity with alchemy. The article aims to identify the central elements of Palau’s interpretation, annihilation and debirth, and to assess their inscription in an experimental poetics proposal inspired by alchemy.
Apophatisme et non-dualité dans le Vedānta et chez Ad Reinhardt
Authors: Scalco Diego
Published: April 2023

Apophatism and Non-duality in the Vedanta and in Ad Reinhardt's work

The Ultimate Paintings, a series of abstractions made by Ad Reinhardt during the 1960s, are coupled with writings with obvious affinities to the apophatic formulas of the commentaries of the Upanishads (the philosophical conclusions of the Vedas) known as the “nondual Vedānta” (Advaita Vedānta). The abstractions themselves refer to the model of the yantra, the geometrical diagram into which Brahmanic iconography is supposed to subside. In this instance, the apophasis defeats the attempt to signify through painting and language what constitutes itself in painting and language.
Presence of Female Expert Comment Providers in Covid-19-related News in Bangladeshi Mainstream Newspapers
Authors: Meherun Nahar  , Sanjoy Basak Partha  , Tasnim Tabassum
Published: April 2023

The capacity of the media to influence political, social, and cultural practices and beliefs has grown beyond the scope of their role as information providers. When it comes to gender relations, the media not only reflects the realities of society but also contributes to its construction by highlighting misconceptions, inequalities, and perceived distinctions between women and men. However, studies reveal that news portrays a world in which women, especially as expert comment providers, are drastically underrepresented and rendered invisible as compared to men. This study examines how Bangladeshi mainstream media uses women as Covid-19 experts. Six national newspapers (The Daily Prothom Alo, The Daily Samakal, The Daily Ittefaq, The Daily Star, New Age, and The Asian Age) were evaluated to assess the situation. This study's data analysis from four months of each daily produced comparable findings to those of the global survey. Less than 10% of the specialists selected by the newspapers to offer their opinions in pieces about Covid-19 were female. In-depth interviews with the journalists were undertaken to uncover why fewer female experts' opinions are considered in the newspapers to address the problem more thoroughly.
Penggunaan Pendekatan Keterampilan Proses Dalam Meningkatkan Hasil Belajar Pesawat Sederhana Siswa Di Kelas V SD Kristen II Makale Kabupaten Tana Toraja
Authors: Vonny Susanna
Published: April 2023

Ilmu Pengetahuan Alam dan Teknologi secara global telah mengalami berbagai perkembangan. Hal ini dapat dilihat dan dirasakan dalam kehidupan sehari-hari yang terjadi di lingkungan sekitar kita. Belajar Sains bukan hanya sekedar menghafalkan konsep dan prinsip Sains,  melainkan dengan pembelajaran Sains diharapkan siswa dapat memiliki sikap dan kemampuan yang berguna bagi dirinya dalam memahami perubahan yang terjadi di lingkungannya. Tujuan Sains diajarkan di Sekolah Dasar adalah untuk membina dan menyiapkan peserta didik agar nantinya peserta didik tanggap dalam menghadapi lingkungannya. Penelitian ini dilaksanakan di kelas V SD Kristen II Makale, dengan jumlah siswa 15, yaitu 8 orang putra, dan 7 orang putri. Penggunaan pendekatan keterampilan proses dalam pembelajaran pokok bahasan pesawat sederhana dapat meningkatkan hasil belajar siswa kelas V SD Kristen II Makale Kabupaten Tana Toraja. Hal ini terbukti adanya perkembangan aktivitas belajar dari siklus pertama dengan kualifikasi Baik ke siklus  kedua dengan kualifikasi Sangat Baik.
Pengaruh Kecerdasan Emosional Terhadap Hasil Belajar Matematika Siswa Kelas VII SMP Katolik Makale
Authors: Lasarus Lasarus , Pratini Tiara
Published: April 2023

Kecerdasan emosional adalah kemampuan untuk mengenali perasaan sendiri dan perasaan orang lain, mengendalikan diri, mengolah emosi, memotivasi diri sendiri, dapat berempati, dan kemampuan untuk membangun hubungan dengan orang lain. Hasil belajar matematika adalah hasil yang diperoleh oleh siswa setelah melakukan aktivitas pembelajaran matematika dalam periode waktu tertentu  yang diwujudkan berupa angka.Penelitian ini bertujuan untuk mengetahui ada tidaknya pengaruh kecerdasan emosional terhadap hasil belajar matematika siswa kelas VII SMP Katolik Makale. Penelitian ini merupakan penelitian kuantitatif. Sampel dalam penelitian ini adalah siswa kelas VII SMP Katolik yang dipilih secara random sampling yang berjumlah 20 siswa. Angket kecerdasan emosional yang digunakan dalam penelitian ini menggunakan angket yang sudah valid dan sudah pernah digunakan untuk menelitih yang diadopsi dari skripsi Vermidayanti Arung Kambu yang berjumlah 25 butir pertanyaan, dan untuk  hasil belajar matematika siswa adalah nilai ulangan harian matematika siswa yang diperoleh dari guru bidang studi yang bersangkutan di SMP Katolik Makale. Teknik analisis data dilakukan dengan menggunakan statistik desriptif dan inferensial. Hasil penelitian menunjukkan bahwa terdapat pengaruh kecerdasan emosional terhadap hasil belajar matematika siswa kelas VII SMP Katolik Makale sebesar 26,7%. Selebihnya 73,3% dipengaruhi oleh faktor-faktor lain. Hasil analisis regresi diperoleh nilai konstan 112,044 dan koefien regresi untuk variable kecerdasan emosional sebesar 0,374, sehingga diperoleh persamaan regresi linear sederhana Y = 112,044 + 0,374X.
Perfil dos protocolos de ensaios clínicos sobre COVID-19 com participação da Fiocruz
Authors: Vilenia
Published: April 2023

Introdução: Durante a pandemia do coronavírus 2019 (COVID-19), houve uma aceleração das pesquisas clínicas, o que traz uma preocupação com a qualidade do dado que é gerado e registrado. No Brasil, a Fiocruz tem papel estratégico na saúde pública. Objetivos: Identificar a atuação da Fiocruz em estudos clínicos relacionados à COVID-19. Analisar as diferentes terminologias utilizadas para se referir à participação da Fiocruz e, adicionalmente, mapear a região desses estudos. Além disso, mensurar a quantidade dos estudos aprovados nas plataformas de registro de estudos clínicos e bases ético regulatórias. Dentre estes, analisar as características metodológicas e de boas práticas dos protocolos dos estudos intervencionais. Métodos: Foram revisadas as bases de dados da Agência Nacional de Vigilância Sanitária (ANVISA), Registro Brasileiro de Ensaios Clínicos (ReBEC), Clinical Trials.gov, InternationalClinical Trials Registry Platform (ICTRP) e o boletim semanal de ética em pesquisa da Conep - edição especial Coronavírus. Resultados: Foram encontrados 53 estudos clínicos sobre COVID-19 com a participação da Fiocruz, dos quais 39 como instituição proponente. Dentre os 53 estudos, 19 estão em plataformas de registro. Sobre os estudos intervencionais registrados, 5 são de prevenção e 9 de tratamento. A intervenção mais analisada nesses estudos foi cloroquina/hidroxicloroquina. Observou-se ainda uma maior concentração desses estudos clínicos na região Sudeste, com o total de 38. Conclusão: Foram analisadas algumas limitações no delineamento metodológico, que podem afetar o alcance dos estudos. Espera-se que os dados obtidos para conhecer o perfil de atuação da Fiocruz sejam utilizados para orientação futura de estudos clínicos sobre COVID-19.
Impact of Westernization on Ghanaian Culture and Fashion
Authors: Adade Abena
Published: April 2023

Purpose: The study sought to analyze the impact of westernization on Ghanaian culture and fashion.

Methodology: The study adopted a desktop methodology. Desk research refers to secondary data or that which can be collected without fieldwork. Desk research is basically involved in collecting data from existing resources hence it is often considered a low cost technique as compared to field research, as the main cost is involved in executive’s time, telephone charges and directories. Thus, the study relied on already published studies, reports and statistics. This secondary data was easily accessed through the online journals and library.

Findings: The results show that findings revealed that fashion is an accessible and flexible means of expressing modernity and there were some forms of fashion in terms of clothing, present among Ghanaians before Europeans arrived on the coast. Ghanaian fashion and the youth are being influenced by foreign factors with a mixture of both traditional and foreign design concepts to meet international standards.

Unique Contribution to Theory, Practices and Policies: The trickle-down and trickle-up theory may be used to anchor future studies in the fashion sector. The study results will also benefit other stakeholders such as the policy makers as well as researchers and scholars from different parts of the world. The top management of fashion industry in the country will also use the study findings to improve the culture and ensure high and stable performance in all their activities and programs. The study recommends that the adoption of effective social protection development policies in the fashion industry will help to improve efficiency in their major operations and activities.
Probiotic Possibilities In Crohn’s Disease: A Research Review Article
Authors: Vijay Abhinav , Han Alvin
Published: April 2023

Crohn’s Disease (CD) is a chronic autoimmune disease in the Inflammatory Bowel Disease (IBD) family.  The presence of certain pathogenic bacteria can cause the disease, but so can the absence of helpful ones. The microorganisms in the gut microbiome carry out many vital tasks, and with missing bacteria these tasks are not carried out. Main treatments for CD are: immunosuppressants, anti-inflammatory drugs, steroids, antibacterial drugs, and biologics, each one offers particular benefits and harmful side effects. Treatments have increased the chances of developing cancers, and illnesses, since the immune system is oftentimes compromised. In a healthy individual these microbes play a large part in our bodies, protecting us from pathogens, “teaching” the immune system, aiding in digestion and improving nutrient absorption. In CD patients the microbial composition in the gut microbiome is unbalanced, introduction of probiotics would bring balance back to the gut. All clinical trials performed so far gave patients the same formula of probiotics. However, each individual has a unique microbiome composition, which these trials failed to take into consideration. Considering this, a possible treatment plan may require a multi-strain probiotic treatment that is tailor fitted for each individual. Therefore, moving forward clinical trials should test tailor fitted probiotic formulas, which could show more promising results.
DIFICULDADES NA IMPLEMENTAÇÃO DO CUSTEIO ABC NAS EMPRESAS
Authors: Soares de Souza Daniel , Cruz José Elenilson , Pires de Carvalho Josué , De Souza Silva Antônio Ytalo
Published: April 2023

Processos de implantação e manutenção do método de Custeio Baseado em Atividades (ABC) nas empresas são permeados por dificuldades específicas do contexto/realidade de cada negócio, como mostram estudos do campo. Com base em revisão sistemática de estudos publicados no período de 1998 a 2019 sobre o método do custeio ABC, este trabalho teve por objetivo identificar e sistematizar os principais fatores dificultadores da implantação e manutenção do custeio ABC nas empresas. Os resultados indicaram 32 fatores que podem ser agrupados em quatro categorias: 1) determinação dos direcionadores de custo, 2) nível de controles internos, 3) resistência da média gerência, 4) custo de implantação e manutenção, e 5) desestímulo da alta gerência. Essas categorias estão interligadas, de forma que podem ser encadeadas numa estrutura de relações de causa e efeito. A partir desses achados, futuros estudos podem investigar efeitos das dificuldades na implantação do custeio ABC em outras variáveis organizacionais, como motivação e comportamento de colaboradores. Apoiados na aplicação de questionários estruturados, novos estudos podem aplicar análise fatorial exploratória e regressão linear múltipla para identificar possíveis relações das categorias aqui identificadas com o sucesso/fracasso da implantação do Custeio ABC nas empresas.
PSYCHOBIOTICS; A NEW FRONTIER IN TREATMENT OF DEPRESSION
Authors: Bosco Aan Mery , Mishra Bharat , Sojan Christy
Published: April 2023

The gut microbiota is a diverse multitude of bacteria, fungi, protozoa and viruses. The gut- brain axis forms a bilateral pathway between the intestinal microbiome and CNS, its collaborative action having both direct and indirect effect in the body. Intestinal dysbiosis is linked to elevated stress, anxiety and depression which alter the normal functioning. The current paradigm focuses on the effect of probiotics on the neurological disorder and how commensal bacteria can reverse action and alleviate depressive symptoms.Various preclinical and clinical studies have shown evidences suggesting the administration of certain probiotic strains have therapeutic effect in cognitive and behavioural disorders. This article reviews on themutualistic association between the gut- brain axis,impact ofgut microbiota in neurologic disorders and the psychotropic effect of probiotics in depressive patients.
PHARMACOLOGICAL APPLICATIONS AND PHARMACOKINETIC MODIFICATIONS OF N-ACETYLCYSTEINE
Authors: Joshy Annamol , Thomas Anitta , Baby Elza , Biju Sijin , Mishra Bharat , Jose Nancy
Published: April 2023

NAC, an acetylated cysteine compound, is a proteinogenic acid. Being a glutathione recurs or NAC is rather unique because of the multifaceted chemical properties of the cysteinyl thiol group of the molecule. This critical review focuses on the pharmacological applications and pharmacokinetic modifications of NAC to provide a better understanding. NAC was earlier used as a mucolytic agent in various respiratory illnesses and is now widely used as the specific antidote for acetaminophen overdose. In course of time, it has proven to be beneficial in many conditions such as HIV infection, COPD exacerbations, heart diseases, treatment of pulmonary fibrosis, Alzheimer’s, and Parkinson’s disease; helps in the prevention of contrast-induced kidney damage during procedures, etc. Preliminary studies also suggest NAC maintains a major role as cancer chemo protective, adjunct in the eradication of Helicobacter pylori, prophylaxis of gentamicin-induced hearing loss in patients, and also found to have some clinical usefulness as a chelating agent in the treatment of acute heavy metal poisoning. Despite its beneficial traits with limited side effects, bioavailability remains a major concern. Hence different pharmacokinetic modifications of NAC like N-acetyl cysteine amide (NACA), N-acetyl-L-cysteine ethyl ester (NACET), Liposomal-N-acetyl cysteine, Effervescent tablet of N-acetyl cysteine, Acetyl cysteine oral inhalation, etc may ameliorate this major drawback. As a result, to develop a more well-designed and reliable indication; to optimize the dose of NAC, larger controlled trials with longer follow-up sections is demanded in the future. Thus, this review brings forward comprehensive knowledge about the possibilities to introduce NAC as a protective and tolerable medication for these various conditions.
Impact Assessment of CFLD Pulses on Pigeonpea Productivity and Profitability in Farmer’s Field
Authors: Kumar Anjani , Kumar Amrendra , Kumari Pushpa , Kumar Sujeet
Published: April 2023

Front line demonstration is the most appropriate method to transfer improved technology in farmer’s field. The study was conducted by ICAR-ATARI, Patna (Bihar and Jharkhand) on pigeon pea during crop season from 2019-2021. Study was conducted in 5520 number of demonstrations, altogether covering 1708.80 ha land area during the three years. Among the different varieties assessed it was observed that cv. NDA-1 and IPA-203 were outperformed in Bihar and Jharkhand respectively. The findings with respect to technology gap, extension gap and technology index of different cultivars grown were varying from 0.121 to 1.49 t/ha; 0.309 to 0.673 t/ha and 6.72 per cent to 49 per cent, respectively in Bihar and Jharkhand. The overall demonstration yield varied between 1.04 to 1.78 t/ ha which is 22.55 per cent to 71.68 per cent more than the farmer’s practices prevailing. Improved technology used under demonstration plot promoted higher yield than the local check with respect to highest net return from demonstration plot was Rs. 70365/ha and Rs. 47037.50/ha and the B:C ratio ranged from 1.33 to 2.82 and 1.02 to 2.43 in Bihar and Jharkhand respectively. Productivity and profitability can be enhanced by appropriate use of critical inputs and newer technological intervention.
C(X) determines X - a unified theory
Authors: Mitra Biswajit , Das Sanjib
Published: April 2023

One of the fundamental problem in rings of continuous function is to extract those spaces for which C(X) determines X, that is to  investigate X and Y such that C(X) isomorphic with C(Y ) implies X homeomorphic with Y. Later S. Banach and M. Stone proved independently with slight variance, that if X is compact Hausdorff space, C(X) also determine X. Their works were maximally extended by E. Hewitt by introducing realcompact spaces and later Melvin Henriksen and Biswajit Mitra solved the problem for locally compact and nearly realcompact spaces. In this paper we tried to develop a unified theory of this problem to cover up all the works in the literature introducing a notion called P-compact spaces.
A counter example on a Borsuk conjecture
Authors: Cholaquidis Alejandro
Published: April 2023

The  study  of  shape  restrictions  of  subsets  of Rd has  several  applications in many areas, being convexity, r-convexity, and positive reach, some of the most famous, and typically imposed in set estimation.  The following problem was attributed to K. Borsuk, by J. Perkal in 1956:find an r-convex set which is not locally contractible.  Stated in that way is trivial to find such a set.  However, if we ask the set to be equal to  the  closure  of  its  interior  (a  condition  fulfilled  for  instance  if  the set  is  the  support  of  a  probability  distribution  absolutely  continuous with respect to the d-dimensional Lebesgue measure), the problem is much  more  difficult.   We  present  a  counter  example  of  a  not  locally contractible set, which is r-convex.  This also proves that the class of supports with positive reach of absolutely continuous distributions includes strictly the class ofr-convex supports of absolutely continuous distributions.
Interpolative contractions and discontinuity at fixed point
Authors: Taş Nihal
Published: April 2023

In this paper, we investigate new solutions to the Rhoades' discontinuity problem on the existence of a self-mapping which has a fixed point but is not continuous at the fixed point on metric spaces. To do this, we use the number defined as n(x,y)=[d(x,y)]β[d(x,Ty)]α[d(x,Ty)]γ[(d(x,Ty)+d(x,Ty))/2]1−α−β−γ, where α , β , γ ∈ ( 0,1 ) with α + β + γ < 1 and some interpolative type contractive conditions. Also, we investigate some geometric properties of Fix(T) under some interpolative type contractions and prove some fixed-disc (resp. fixed-circle) results. Finally, we present a new application to the discontinuous activation functions.
Concrete functors that respect initiality and finality
Authors: Mynard Frédéric
Published: April 2023

We study concrete endofunctors of the category of convergence spaces and continuous maps that send initial maps to initial maps or final maps to final maps. The former phenomenon turns out to be fairly common while the latter is rare. In particular, it is shown that the pretopological modification is the coarsest hereditary modifier finer than the topological modifier and this is applied to give a structural interpretation of the role of Fréchet-Urysohn spaces with respect to sequential spaces and of k' -spaces with respect to k -spaces.
THE EFFECT OF EXISTENTIAL AUTHENTICITY AND OBJECT-BASED AUTHENTICITY ON THE BEHAVIOR INTENTION OF SLOW TOURISTS
Authors: Nguyen Thị Huyen  , Nguyen Thi Thu
Published: April 2023

The research is carried out to understand slow tourists’ behavior through analyzing the impact of perceived authenticity. The SPSS and AMOS software were used to analyze the structural equation model (SEM). In this study, authenticity was considered from both object-based and existential authenticity. Data was collected from 518 tourists who has visited Hue or slow destination at least once. The results shows that both existential and object-based authenticity had a positive impact on desire and intention to join slow toursism. In addition to the direct effect, existential authenticity is considered as a mediator in the relationship between object-based authenticity and intention to revisit the destination. Based on the results, theoretical and managerial implications are discussed to propose solutions to improve the rate of slow tourists.

Keywords: Authenticity; Behavior Intention; Existential Authenticity; Object-Based Authenticity.
Удосконалення системи екологічного оподаткування викидів двоокису вуглецю в Україні в повоєнний період
Authors: Ilchuk Mykola , Berezovska Lyudmyla , Tomashevska Olha , Ivanov Yevhen
Published: April 2023

Мета. Мета дослідження – виявлення проблем наявної системи екологічного оподаткування за викиди двоокису вуглецю в Україні та розробка напрямів її вдосконалення в повоєнний період.

Методологія / методика / підхід. Для проведення дослідження використано такі методи, як: кабінетне дослідження (збір і вивчення статичної інформації); порівняльний (зіставлення ситуації щодо екологічного оподаткування в Україні та ЄС); регресійний аналіз (визначення впливу ставки податку за викиди двоокису вуглецю на скорочення викидів); дескриптивне моделювання (моделювання механізму екологічного оподаткування).

Результати. Провівши порівняння обсягів викидів двоокису вуглецю від стаціонарних джерел забруднення у 2019 р. з розміром надходжень від екологічного податку за викиди двоокису вуглецю в атмосферне повітря, визначили, що частка неоподатковуваних викидів становила 21,5 %, або 26,1 млн т. Побудувавши регресійне рівняння залежності для визначення впливу ставки податку за викиди двоокису вуглецю стаціонарними джерелами забруднення (Х) на скорочення викидів СО2 (Y), установили, що збільшення ставки на 1 % приводить до зменшення викидів СО2 на 9,7 % стосовно до середніх значень у вибірці. Відповідно до проведеного дослідження, викиди двоокису вуглецю протягом 2019–2020 рр. скоротилися на 10,1 % при зростанні ставки податку у 24,4 раза, а у 2021 р. – зросли на 9,9 % порівняно з попереднім роком. На основі аналізу механізму оподаткування викидів двоокису вуглецю в атмосферне повітря в Україні виявлено його недоліки, пов’язані з необхідністю проведення інвентаризації для встановлення факту перевищення граничного обсягу викидів двоокису вуглецю в атмосферне повітря, що призводить до заниження обсягів викидів законним шляхом.

Оригінальність / наукова новизна. Уперше запропоновано механізм екологічного оподаткування для сільськогосподарських підприємств, які порушують науково обґрунтовану структуру посівних площ, для призупинення негативних процесів деградації ґрунтів і стабілізації агроекологічної ситуації в Україні. Отримали подальший розвиток пропозиції щодо впровадження податку на споживання енергетичних ресурсів шляхом розробки моделі механізму оподаткування вуглецевим податком на викопні палива в Україні.

Практична цінність / значущість. Основні результати дослідження можна використовувати для вдосконалення податкової та ґрунтоохоронної політики держави під час розробляння заходів, спрямованих на декарбонізацію промисловості і сільського господарства та пришвидшення інтеграції вітчизняної економічної системи до систем країн ЄС.
Методичний підхід до визначення розміру оптимальної сировинної зони в логістичній системі молокопереробного підприємства
Authors: Antoshchenkova Vitalina , Onegina Viktoriya , Gutsul Tetiana , Boblovskyi Oleksandr , Kravchenko Yuliia
Published: April 2023

Мета. Метою статті є вдосконалення методичного підходу до визначення оптимальної сировинної зони в логістичній системі молокопереробного підприємства з використанням економіко-математичного інструментарію.

Методологія / методика / підхід. У дослідженні використано такі методи, як аналіз, синтез, узагальнення, індукція, дедукція – для визначення підсистем логістичної системи молокопереробного підприємства, чинників розміру його сировинної зони, формулювання висновків щодо методичного підходу до оцінювання її раціонального розміру; економіко-математичне моделювання та кластерний аналіз – для визначення раціонального розміру сировинної зони молокопереробного підприємства; графічний – для візуальної презентації кластерного аналізу сировинної зони підприємства із заготівлі молока за методом Варда. Дослідження виконували на основі статистичних даних головного управління статистики у Чернігівській області, звітності сільськогосподарських підприємств Чернігівської області та даних власних спостережень авторів за 2011–2021 рр. (для розрахунку окремих показників ураховували дані за 2020–2021 рр.).

Результати. Визначено особливості, місце й завдання логістичної діяльності в молокопродуктовому підкомплексі, розроблено концептуальну модель логістичної системи молокопереробного підприємства, яка складається з функціональної й забезпечувальної підсистем та охоплює виробничі, закупівельні, транспортні, сертифікаційні, складські й переробні процеси, мінімізує логістичні ризики. З метою виявлення резервів оптимізації сировинної зони проведено кластерний аналіз (методом кластеризації обрано метод Варда) на основі даних щодо обсягів закупівлі молока, віддаленості від заводу та потенційних можливостей розширення сировинної зони. Побудовано економіко-математичну модель, що дозволяє визначати оптимальну сировинну зону заготівельного підприємства за критерієм мінімуму транспортних витрат на доставку молочної сировини, а також визначати оптимальну структуру виробництва молочної продукції за критерієм мінімуму технологічних витрат на переробку сировини при виробництві різних видів продукції з урахуванням обсягів споживчого попиту. Апробація економіко-математичної моделі дозволила визначити раціональну віддаленість виробників молока від молокопереробного підприємства на відстані 46–56 км у досліджуваному регіоні.

Оригінальність / наукова новизна. Удосконалено методичний підхід до визначення оптимальної сировинної зони в логістичній системі молокопереробного підприємства з використанням економіко-математичного інструментарію та шляхом застосування кластерного аналізу за методом Варда.

Практична цінність / значущість. Результати дослідження можуть бути використані для розрахунку оптимальної сировинної зони молокопереробних підприємств, що сприятиме сталому розвитку молокопродуктового підкомплексу, усіх його учасників – від виробників сировини (молока) до кінцевого споживача.
Dependency of vertical velocity variance on meteorological conditions in the convective boundary layer
Authors: Dewani Noviana , Sakradzija Mirjana , Schlemmer Linda , Leinweber Ronny , Schmidli Juerg
Published: April 2023

Abstract. Measurements of vertical velocity from vertically pointing Doppler lidars are used to derive the profiles of normalized vertical velocity variance. Observations were taken during the FESSTVaL (Field Experiment on Submesoscale Spatio-Temporal Variability in Lindenberg) campaign during the warm seasons of 2020 and 2021. Normalized by the square of the convective velocity scale, the average vertical velocity variance profile follows the universal profile of Lenschow et al. (1980). However, daily profiles still show a high day-to-day variability. We found that moisture transport and the content of moisture in the boundary layer could explain the remaining variability of the normalized vertical velocity variance. The magnitude of the normalized vertical velocity variance is highest on clear-sky days and decreases as the absolute humidity increases and surface latent heat flux decreases on cloud-topped days. This suggests that moisture content and moisture transport are limiting factors for the intensity of turbulence in the convective boundary layer. We also found that the intensity of turbulence decreases with an increase in the boundary layer cloud fraction during FESSTVaL, while the latent heating in the cloud layer was not a relevant source of turbulence in this case. We conclude that a new vertical velocity scale has to be defined that would take into account the moist processes in the convective boundary layer.
Development and characterization of the Portable Ice Nucleation Chamber 2 (PINCii)
Authors: Castarède Dimitri , Brasseur Zoé , Wu Yusheng , Kanji Zamin A. , Hartmann Markus , Ahonen Lauri , Bilde Merete , Kulmala Markku , Petäjä Tuukka , Pettersson Jan B. C. , Sierau Berko , Stetzer Olaf , Stratmann Frank , Svenningsson Birgitta , Swietlicki Erik , Thu Nguyen Quynh , Duplissy Jonathan , Thomson Erik S.
Published: April 2023

Abstract. The Portable Ice Nucleation Chamber 2 (PINCii) is a newly developed continuous flow diffusion chamber (CFDC) for measuring ice nucleating particles (INPs). PINCii is a vertically-oriented parallel plate CFDC that has been engineered to improve upon limitations of previous generations of portable CFDCs. This work presents a detailed description of the PINCii instrument and the upgrades that make it unique compared to other operational CFDCs. The PINCii design offers several possibilities for improved INP measurements. Notably, a specific icing procedure results in low background particle counts, which demonstrates the potential for PINCii to measure INPs in very low concentrations. High spatial resolution walltemperature mapping enables the identification of temperature inhomogeneities on the chamber walls. This feature is used to introduce and discuss a new method to analyze CFDC data. A temperature gradient can be maintained throughout the evaporation section in addition to the main chamber, which enables PINCii to be used to study droplet activation processes or to extend ice crystal growth. A series of both liquid droplet activation and ice nucleation experiments were conducted at temperature and saturation conditions that span the spectrum of PINCii’s operational conditions (−50 ≤ temperature ≤ −15 °C and 100 ≤ relative humidity with respect to ice ≤ 160 %) to demonstrate the capabilities of PINCii. In addition, typical sources of uncertainty in CFDCs, including particle background, particle loss, and variations in aerosol lamina temperature and relative humidity, are quantified and discussed for PINCii.
Reallocation of elemental content and macromolecules in the coccolithophore Emiliania huxleyi to acclimate to climate change
Authors: Zhang Yong , Zhang Yong , Ma Shuai , Chen Hanbing , Li Jiabing , Li Zhengke , Xu Kui , Huang Ruiping , Zhang Hong , Han Yonghe , Sun Jun
Published: April 2023

Abstract. Global climate change leads to simultaneous changes in multiple
environmental drivers in the marine realm. Although physiological
characterization of coccolithophores has been studied under climate change, there is limited knowledge on the biochemical responses of this
biogeochemically important phytoplankton group to changing multiple
environmental drivers. Here, we investigate the interactive effects of
reduced phosphorus availability (4 to 0.4 µmol L−1), elevated pCO2 concentrations (426 to 946 µatm), and increasing light intensity (40 to 300 µmol photons m−2 s−1) on elemental content and macromolecules of the cosmopolitan coccolithophore Emiliania huxleyi. Reduced phosphorus availability reduces particulate organic nitrogen (PON) and protein contents per cell under 40 µmol photons m−2 s−1 but not under 300 µmol photons m−2 s−1. Reduced phosphorus
availability and elevated pCO2 concentrations act synergistically to
increase particulate organic carbon (POC) and carbohydrate contents per cell under 300 µmol photons m−2 s−1 but not under 40 µmol photons m−2 s−1. Reduced phosphorus availability, elevated pCO2 concentrations, and increasing light intensity act synergistically to increase the allocation of POC to carbohydrates. Under elevated pCO2 concentrations and increasing light intensity, enhanced carbon fixation could increase carbon storage in the phosphorus-limited regions of the oceans where E. huxleyi dominates the phytoplankton assemblages. In each type of light intensity, elemental-carbon-to-phosphorus (C:P) and nitrogen-to-phosphorus (N:P) ratios decrease with increasing growth rate. These results suggest that coccolithophores could reallocate chemical elements and energy to synthesize macromolecules efficiently, which allows them to regulate their
elemental content and growth rate to acclimate to changing environmental
conditions.
Accounting for Precipitation Asymmetry in a Multiplicative Random Cascades Disaggregation Model
Authors: Maloku Kaltrina , Hingray Benoit , Evin Guillaume
Published: April 2023

Abstract. Analytical Multiplicative Random Cascades (MRCs) are widely used for the temporal disaggregation of coarse-resolution precipitation time series. This class of models applies simple scaling laws to represent the dependence of the cascade generator on the temporal scale and the precipitation intensity. Although determinant, the dependence on the external precipitation pattern is usually disregarded. Our work presents a unified MRC modelling framework that allows the cascade generator to depend in a continuous way on temporal scale, precipitation intensity and a so-called precipitation asymmetry index. Different MRC configurations are compared for 81 locations in Switzerland with contrasted climates. The added value of the dependence of the MRC on the temporal scale appears to be unclear, unlike what was suggested in previous works. Introducing the precipitation asymmetry dependence in the model leads to a drastic improvement of model performance for all statistics related to precipitation temporal persistence (wet/dry transition probabilities, lag-n autocorrelation coefficients, lengths of dry/wet spells). Accounting for precipitation asymmetry seems to solve this important limitation of previous MRCs. The model configuration that only accounts for the dependence on precipitation intensity and asymmetry is highly parsimonious, with only five parameters, and provides adequate performances for all locations, seasons and temporal resolutions. The spatial coherency of the parameter estimates indicates a real potential for regionalisation and for further application to any location in Switzerland.
Estimating nitrogen and sulfur deposition across China during 2005–2020 based on multiple statistical models
Authors: Zhou Kaiyue , Xu Wen , Zhang Lin , Ma Mingrui , Liu Xuejun , Zhao Yu
Published: April 2023

Abstract. Due to the rapid development of industrialization and substantial economy, China has become one of the global hotspots of nitrogen (N) and sulfur (S) deposition following Europe and the USA. Here, we developed a dataset with full coverage of N and S deposition from 2005 to 2020, with multiple statistical models that combine ground-level observations, chemistry transport simulations, satellite-derived vertical columns, and meteorological and geographic variables. Based on the newly developed random forest method, the multi-year averages of dry deposition of OXN, RDN and S in China were estimated at 10.4, 14.4 and 16.7 kg N/S ha−1 yr−1, and the analogous numbers for total deposition were respectively 15.2, 20.2 and 25.9 kg N/S ha−1 yr−1 when wet deposition estimated previously with a GAM model was included. The Rdry/wet of N stabilized in earlier years and then gradually increased especially for RDN, while that of S declined for over ten years and then slightly increased. RRDN/OXN was estimated to be larger than 1 for the whole research period and clearly larger than that of the USA and Europe, with a continuous decline from 2005 to 2011 and a more prominent rebound afterwards. Compared with the USA and Europe, a more prominent lagging response of OXN and S deposition to precursor emission abatement was found in China. The OXN dry deposition presented a descending gradient from east to west, while the S dry deposition a descending gradient from north to south. After 2012, the OXN and S deposition in eastern China declined faster than the west, attributable to stricter emission controls. Positive correlation was found between regional deposition and emissions, while smaller deposition to emission ratios (D/E) existed in developed eastern China with more intensive human activities.
Differential bleaching of quartz and feldspar luminescence signals under high turbidity conditions
Authors: Mey Jürgen , Schwanghart Wolfgang , de Boer Anna-Maartje , Reimann Tony
Published: April 2023

Abstract. Sediment burial dating using optically stimulated luminescence (OSL) is a well-established tool in geochronology. An important but often inapplicable requirement for its successful use is that the OSL signal is sufficiently reset prior to deposition. However, subaqueous bleaching conditions during fluvial transport are vastly understudied, for example the effect of turbidity and sediment mixing on luminescence bleaching rates is only poorly established. The possibility that slow bleaching rates may dominate in certain transport conditions led to the concept that OSL could be used to derive sediment transport histories. The feasibility of this concept is still to be demonstrated and experimental setups to be tested. Our contribution to this scientific challenge involves subaquatic bleaching experiments, in which we suspend saturated coastal sand of Miocene age in a circular flume and illuminate it for discrete time intervals with natural light. We record the in-situ energy flux density received by the suspended grains in the UV-NIR frequency range by using a broadband spectrometer with a submersible probe. Our analysis includes pre-profiling of each sample following a polymineral multiple signal (PMS) protocol. Using the PMS, the quartz dominated blue stimulated luminescence signal at 125 °C (BSL-125) decays slower than the K-feldspar dominated infrared stimulated luminescence signal at 25 °C (IR-25) even under subaerial conditions. The BSL-125 from purified quartz shows the opposite behaviour, which renders the PMS unreliable in our case. We find a negative correlation between suspended sediment concentration and bleaching rate for all the measured signals. For outdoor bleaching experiments we propose to relate the measured luminescence dose to the cumulative received irradiance rather than to the bleaching time. Increases in the sediment concentration lead to a stronger attenuation of the UV/blue compared to the red/NIR wavelength. This attenuation thereby follows an exponential decay that is controlled by the sediment concentration and a wavelength-dependent decay constant, λ. As such λ could potentially be used in numerical models of luminescence signal resetting in turbid suspensions.
pyESDv1.0.1: An open-source Python framework for empirical-statistical downscaling of climate information
Authors: Boateng Daniel , Mutz Sebastian G.
Published: April 2023

Abstract. The nature and severity of climate change impacts vary significantly from region to region. Consequently, high-resolution climate information is needed for meaningful impact assessments and the design of mitigation strategies. This demand has led to an increase in the coupling of Empirical Statistical Downscaling (ESD) models to General Circulation Model (GCM) simulations of future climate. In contrast to dynamical downscaling, the Perfect Prognosis ESD (PP-ESD) approach has several benefits, including low computation costs, the prevention of the propagation of GCM specific errors, and high compatibility with different GCMs. Despite their advantages, the use of ESD models and the resulting data products is hampered by (1) the lack of accessible and user-friendly downscaling software packages that implement the entire downscaling cycle, (2) difficulties to reproduce existing data products and assess their credibility, and (3) difficulties to reconcile different ESD-based predictions for the same region. We address these issues with a new open-source Python PP-ESD modeling framework pyESD. pyESD implements the entire downscaling cycle, i.e., routines for data preparation, predictor selection and construction, model selection and training, evaluation, utility tools for relevant statistical tests, visualization, and more. The package includes a collection of well-established Machine Learning algorithms and allows the user to choose a variety of estimators, cross-validation schemes, objective function measures, hyperparameter optimization, etc., in relatively few lines of code. The package is well documented, highly modular, and flexible. It allows quick and reproducible downscaling of any climate information, such as precipitation, temperature, wind speed, or even short-term glacier length and mass changes. We demonstrate the use and the effectiveness of the new PP-ESD framework by generating weather station-based downscaling products for precipitation and temperature in complex mountainous terrain in Southwest Germany. The application example covers all important steps of the downing cycle and different levels of experimental complexity. All scripts and datasets used in the case study are publicly available to (1) ensure the reproducibility and replicability of the modeled results, and (2) simplify learning to use the software package.
Hydrological response to climate change and human activities in the Three-River Source Region
Authors: Su Ting , Miao Chiyuan , Duan Qingyun , Gou Jiaojiao , Guo Xiaoying , Zhao Xi
Published: April 2023

Abstract. The Three-River Source Region (TRSR), which is known as “China's Water Tower” and affects the water resources security of 700 million people
living downstream, has experienced significant hydrological changes in the
past few decades. In this work, we used an extended variable infiltration
capacity (VIC) land surface hydrologic model (VIC-Glacier) coupled with the
degree-day factor algorithm to simulate the runoff change in the TRSR during 1984–2018. VIC-Glacier performed well in the TRSR, with Nash–Sutcliffe efficiency (NSE) above 0.68, but it was sensitive to the quality of the limited ground-based precipitation. This was especially marked in the source region of the Yangtze River: when we used Precipitation Estimation from Remotely Sensed Information Using Artificial Neural Networks – Climate Data Record (PERSIANN-CDR), which has better spatial details, instead of ground-based precipitation, the NSE of Tuotuohe station increased from 0.31 to 0.86. Using the well-established VIC-Glacier model, we studied the contribution of each runoff component (rainfall, snowmelt, and glacier runoff) to the total runoff and the causes of changes in runoff. The results indicate that rainfall runoff contributed over 80 % of the total runoff, while snowmelt runoff and glacier runoff both contributed less than 10 % in 1984–2018. Climate change was the main reason for the increase in runoff in the TRSR after 2004, accounting for 75 %–89 %, except in the catchment monitored by Xialaxiu station. Among climate change factors, precipitation had the greatest impact on runoff. Finally, through a series of hypothetical climate change scenario experiments, we found that a future simultaneous increase in precipitation and temperature would increase the total runoff, rainfall runoff, and glacier runoff. The snowmelt runoff might remain unchanged because the increased precipitation, even with seasonal fluctuations, was basically completely compensated for by the decreased solid-to-liquid precipitation ratio. These findings improve our understanding of hydrological processes and provide insights for policy-makers on how to optimally allocate water resources and manage the TRSR in response to global climate change.
The sensitivity of primary productivity in Disko Bay, a coastal Arctic ecosystem, to changes in freshwater discharge and sea ice cover
Authors: Møller Eva Friis , Christensen Asbjørn , Larsen Janus , Mankoff Kenneth D. , Ribergaard Mads Hvid , Sejr Mikael , Wallhead Philip , Maar Marie
Published: April 2023

Abstract. The Greenland ice sheet is melting, and the rate of ice loss has increased 6-fold since the 1980s. At the same time, the Arctic sea ice extent is decreasing. Meltwater runoff and sea ice reduction both influence light and nutrient availability in the coastal ocean, with implications for the timing, distribution, and magnitude of phytoplankton production. However, the integrated effect of both glacial and sea ice melt is highly variable in time and space, making it challenging to quantify. In this study, we evaluate the relative importance of these processes for the primary productivity of Disko Bay, west Greenland, one of the most important areas for biodiversity and fisheries around Greenland. We use a high-resolution 3D coupled hydrodynamic–biogeochemical model for 2004–2018 validated against in situ observations and remote sensing products. The model-estimated net primary production (NPP) varied between 90–147 gC m−2 yr−1 during 2004–2018, a period with variable freshwater discharges and sea ice cover. NPP correlated negatively with sea ice cover and positively with freshwater discharge. Freshwater discharge had a strong local effect within ∼ 25 km of the source-sustaining productive hot spots during summer. When considering the annual NPP at bay scale, sea ice cover was the most important controlling factor. In scenarios with no sea ice in spring, the model predicted a ∼ 30 % increase in annual production compared to a situation with high sea ice cover. Our study indicates that decreasing ice cover and more freshwater discharge can work synergistically and will likely increase primary productivity of the coastal ocean around Greenland.