bluuebunny/crossref_metadata_2025 huggingface dataset:
The Biological Monitoring as a Source of Information on Environmental Pollution with Heavy Metals
Authors: Wacławek Maria , Świsłowski Paweł , Rajfur Małgorzata
Published: February 2023

The influence of environmental pollution on living organisms has been known for a long time, but it was not until the second half of the twentieth century that methodical studies on the influence of anthropopressure on changes in ecosystems began. Living organisms began to be used as biological indicators of environmental pollution. Cyclical and quantitative studies of pollutant concentrations in bioaccumulators have become the basis of modern biological monitoring (biomonitoring) of environmental pollution. Biomonitoring studies are carried out with the passive method (passive biomonitoring), in which living organisms occurring in their natural environment are analysed, and with active methods (active biomonitoring), in which, for example, plants living in the environment with low pollution are transferred and displayed in more polluted ecosystems e.g. heavy metals. The analysis of trace elements, including heavy metals accumulated in algae, mosses and lichens used in biological monitoring provides a lot of information on, among others concentration and origin of pollutants and the directions of their spread. Biomonitoring is used to assess the level of contamination of selected ecosystems, as well as the impact of individual emitters on the environment. An important element in determining the concentrations of trace elements in biological material used in biomonitoring is the proper planning of the experiment, taking into account, among others: methods of collecting or exposing samples, selection of analytical methods and methods of evaluation and interpretation of results. The aim of the presented long-term research, conducted by the Research Team of the Institute of Biology of the University of Opole, was to show that analytical techniques using biota samples can provide reliable data on the past, present and future state of the environment. However, it should be remembered that in order for the results of biomonitoring studies to be reliable and comparable, the applied research methodologies should be consistent and repeatable. In the presented research, Palmaria palmata and Spirogyra sp. algae, Pleurozium schreberi mosses, Hypogymnia physodes and bark of deciduous trees were used. In samples of biological material by the method of atomic absorption spectrometry, the concentrations of heavy metals, including Ni, Cu, Zn, Cd and Pb, were determined. On the basis of the conducted research, it was unequivocally stated that the biomonitoring methods are a good complement to the classic methods of environmental quality assessment. The analysis of the elements accumulated in the biological material provides us with information about the quality of the examined ecosystems, the introduced pollutants and their potential sources. This information allows for the introduction of effective measures to improve the quality of the environment.
Environmental Emissions Dispersion Modelling, Principles and Algorithms; Cross-Border CZ-PL Course for Master’s Students
Authors: Štěpánek Vladimír , Kříž Jan , Hyšplerová Lidmila , Keder Josef , Ziembik Zbigniew , Lyčka Antonín
Published: February 2023

Regular mathematical modelling of the dispersion of emissions from large sources is required by law in all EU countries. It is also used in risk analysis to predict releases of toxic substances from various technologies, from volcanic activity and possibly also terrorist acts. However, there is a shortage of experts in this very specific and demanding profession in the labour market in most EU countries. In a collaboration between academicians from neighbouring University of Hradec Králové and University of Opole and experts from important ecological companies of both regions we designed and verified as a part of a four-year pedagogical project supported by the EU a comprehensive education system in mathematical modelling of emission dispersion with exchange field trips and internships of students during cross-border Polish-Czech university education. The paper consists of two separate parts. The first part is focused on implementation of innovative lesson “Principles, algorithms, and differences of environmental dispersion emissions models”, used on both sides of Polish-Czech border region. An example of the use of the educational package of the Gaussian plume model with PC Templates, who was modified in cooperation between teachers from both cross-border universities and experts from professional companies is presented here too. Our four-year experience with student motivational field trips to professional companies in both border regions and exchange one-month professional internships for interested students to two Czech professional companies, where students learn to work with to the Gaussian plume model and one Polish professional company, where students are introduced to the Gaussian puff model is also discussed. The following separate second part will be focused on the innovative lesson of multivariate statistical methods of environmental data analysis, which are required for processing materials for modern mathematical modelling of the dispersion of emissions in practice. The target users of this two-part innovative courses are students of the MSc degree in Physical Measurement and Modelling at the University of Hradec Králové and students of the MSc degree in environmental studies at the University of Opole. However, it is also open to other Czech and foreign students and professionals.
Noul Materialism: Ipoteze Și Contexte
Authors: Gogoșeanu Mihaela-Oana
Published: February 2023

The aim of this paper is to reflect the directions proposed by the new materialism’s theorists by revealing them in a field in which the new materialist perspective has not experienced the same emergence as in cultural studies or philosophy: literature, an area whose socio-cultural implication will enable the correlations with the art of performance. For this purpose, after a brief theoretical introduction, “hypothesis”, of the approach, whose role is in fact to clarify the ideas that the new materialism supports, we reveal a series of neo-materialist “contexts” in the literatures of Urmuz and Matei Vişniec, and in the performances of Marina Abramović, in which the hybridization of the human is the central aspect that allows to present neo-materialist perspective of the corpus.
Poetica Nemărginirii în Poemele Luminii: Transcendență Și Interioritate
Authors: Necșa Olivia Maria
Published: February 2023

The aim of this work is to analyze and interpret Lucian Blaga’s volume called “Poems of light” (Poemele luminii). The conquest of the outer infinity and the transposition to the inner, existential universe represent the points of interest that are going to be explored. In Blaga’s works, it seems that the soul knows no limits, but it cannot conquer infinity if it does not give up its physical existence, its chemical matter. The study will therefore depict several stages in achieving infinity, from the spatial perspective, to the abstract, spiritual one, considering also the dualistic view that the poet has on the various manners of erasing limits. Giving up on “being” in order to reach “feeling” represents the main act of courage that the lyrical voice assumes with the help of the strongest emotion: love.
Margini Și Repere Metafizice în Poezia Blagiană
Authors: Pietraru Iulia
Published: February 2023

The aim of the present study is to follow how certain theoretical ideas related to the concept of “limit” are transposed in Lucian Blaga’s poetry. The poet’s obsession with metaphysical destruction is well-known. Rationalism destroys the mystery, meaning that it puts limits on the process of intentional and assumed Luciferian knowledge. The poet uses an archaic imaginary to place things in the universality, to go beyond what the human being can perceive. To sum up, the idea I want to demonstrate is that there are several types of limits in Lucian Blaga’s poetry, which will be analyzed, looking at some poems. I have referred to the volumes „Poemele luminii”, „Pașii profetului”, „În marea trecere”, „Lauda somnului”, „Corăbii cu cenușă”, „Cântecul focului”, „Ce aude unicornul” and „Ultimele poezii”.
Jurnalul Lui Mihail Sebastian – Între Autenticitate Și Ficțiune
Authors: Toader Ionela
Published: February 2023

Mihail Sebastian’s diary was published posthumously, over fifty years after the writer’s death, by the Humanitas Publishing House, under the title Journals 1935-1944, its publication being considered the major literary event of 1996. Faithful to Jules Renard’s diary, which he read and about which he also wrote, Mihail Sebastian is an adept of authenticity and sincerity in diary writing. The fact that it was published more than fifty years after the author’s death - a totally unexpected death - without the author having any possibility of processing it, is the best argument in favor of authenticity. Mihail Sebastian’s Journal is a mixed type of diary, which captures a complex existence, mirroring the events he participates in, what he does and how he acts, but especially what he feels, being faced with certain situations. Thus, the Journal becomes a space of small history, as Eugen Simion calls insignificant everyday events, but also of big history, which is written as the Second World War starts, unfolds and ends, one of the more significant historical events that humanity has experienced and to which Mihail Sebastian was a witness. This is the reality that Mihail Sebastian experiences, a reality that could undergo a slight transfiguration, caused by the subjective angle from which the events are viewed. It is precisely this inherently subjective angle that, to a greater or lesser extent, makes intimate writing a fiction of nonfiction.
Reprezentări Ale Maladivului La M. Blecher Și Thomas Mann
Authors: Piloiu Andreea
Published: February 2023

The present paper focuses on the ailments of modern man, whether we consider the physiological aspect, or whether we refer to the metaphorical, ontological dimension, and performs a comparative analysis between the work of M. Blecher and the novel The Enchanted Mountain by Thomas Mann. Illness - the overarching theme of the novels - receives numerous valences, from the most noble to the most detestable, but what remains common to these texts advanced for analysis is the existential crisis, the inner void that the characters experience acutely. The universe that both the Romanian and the German author create is permeated by the specter of death, which, without being tragically experienced, rather gives off a strange fascination, and ends up creeping into the thoughts, habits and belongings of the characters, becoming a kind of obsession that convulsively controls everyone, but which they paradoxically ignore, with just as much indifference. On a macro level, the smoldering malaise can be assimilated on the level of all mankind, as if foreshadowing the dire fate of humanity in the upcoming period.
Existence result of the global attractor for a triply nonlinear thermistor problem
Authors: Ammi Moulay Rchid Sidi , Dahi Ibrahim , Hachimi Abderrahmane El , Torres Delfim F. M.
Published: February 2023

We study the existence and uniqueness of a bounded weak solution for a triply nonlinear thermistor problem in Sobolev spaces. Furthermore, we prove the existence of an absorbing set and, consequently, the universal attractor.
A Nonlocal Model for Reconstructing Images Corrupted by Cauchy Noise
Authors: Bendaida F.
Published: February 2023

The aim of this paper is to present the mathematical and numerical study of a nonlocal nonlinear model based on the variable exponent p(x)-Laplacian for removing Cauchy noise, which is a type of impulsive and non-Gaussian degradation. The proposed model benefits from the performance of the nonlocal approach to preserve small details and textures, and the efficiency of the variable exponent to reduce the execution time. To demonstrate the reliability of our proposed model, we provide some experimental denoising results and illustrate the comparison with some models from the literature.
Independence, infinite dimension, and operators
Authors: Idrissi Nizar El , Kabbaj Samir
Published: February 2023

In [Appl. Comput. Harmon. Anal., 46 (2019), 664673] O. Christensen and M. Hasannasab observed that assuming the existence of an operator T sending en to e

n

+1 for all n ∈ ℕ (where (e

n
)
n

∈ℕ is a sequence of vectors) guarantees that (e

n
)
n

∈ℕ is linearly independent if and only if dim{e

n

}

n

∈ℕ = ∞. In this article, we recover this result as a particular case of a general order-theory-based model-theoretic result. We then return to the context of vector spaces to show that, if we want to use a condition like T(e

i
) = e

ϕ

(

i

) for all i ∈ I where I is countable as a replacement of the previous one, the conclusion will only stay true if ϕ : I → I is conjugate to the successor function succ : n ↦n + 1 defined on ℕ. We finally prove a tentative generalization of the result, where we replace the condition T(e

i
) = e

ϕ

(

i

) for all i ∈ I where ϕ is conjugate to the successor function with a more sophisticated one, and to which we have not managed to find a new application yet.
New asymmetric perturbations of FGM bivariate copulas and concordance preserving problems
Authors: El maazouz Mohamed , Sani Ahmed
Published: February 2023

New copulas, based on perturbation theory, are introduced to clarify a symmetrization procedure for asymmetric copulas. We give also some properties of the symmetrized copula mainly conservation of concordance. Finally, we examine some copulas with a prescribed symmetrized part. The start point of the treatment is the independence copula and the last one will be an arbitrary member of Farlie-Gumbel-Morgenstein family. By the way, we study topologically, the set of all symmetric copulas and give some of its classical and new properties.
Mechanical Vibrations Analysis in Direct Drive Using CWT with Complex Morlet Wavelet
Authors: Łuczak Dominik
Published: February 2023

Modern industrial process and household equipment more often use direct drives. According to European policy, Industry 4.0 and new Industry 5.0 need to undertake the effort required to ensure a sustainable, human-centric, and resilient European industry. One of the main problems of rotating machines is mechanical vibrations that can limit the lifetime of the final product or the machine in which they are applied. Therefore, analysis of vibration in electrical drives is crucial for appropriate maintenance of the machine. The present article undertakes an analysis of vibration measured at the laboratory stand with multiple dominant frequencies in the range 50–500 Hz. The fast Fourier transform (FFT) gives information about the frequency component without its time localisation. While the solution made available by the short-time Fourier transform (STFT) is able to overcome the problem of FFT, it still has limitations, particularly in terms of there being a lacuna in time and frequency localisation; accordingly, the need is felt for other methods that can give a good localisation in time and frequency. In the article, the continuous wavelet transform (CWT) was investigated, which requires selection of the wavelet function (kernel of transformation). The complex Morlet wavelet was selected with description of its central frequency and bandwidth. CWT and STFT time-frequency localisation capabilities were compared to investigate data registered from the direct-drive laboratory stand. CWT gives better frequency localisation than STFT even for the same frequency resolution. Vibration frequencies with near-locations were separated in CWT and STFT joined them into one wide pick. To ensure a good extraction of frequency features in electric drive systems, the author, based on analysing the results of the present study, recommends that CWT with complex Morlet wavelet be used instead of STFT.
Research on Saturation Diving in Poland and its Implementation. Part I A. General Characteristics of Saturation Diving Research in Our Poland. Pioneer Times; 1967-1985
Authors: Skrzyński Stanisław
Published: February 2023

The article is the first in a series of articles on the research and implementation of saturation diving technology in our country which presents the specific Polish conditions and achievements against the background of economic and historical circumstances. In view of the fact that research and implementation has a history of more than half a century, selected key figures of this period are recalled, some of whom have disappeared in the fogs of history. In the specialized literature of the world, the Polish underwater habitats of Meduza are among top 6 countries that researched and implemented, this high technology of saturation diving. Regarded as the inspirer, pioneer and creator of the first saturation diving, he designed and developed the technique and decompression with the cooperation of a team of enthusiasts from clubs and professional divers, as well as engineering staff from the Tri-City enterprises. In the first part of the article the author characterizes the saturation dives in comparison with short dives with particular emphasis on decompression, which is the key to safe diving. The article also takes into account the technical conditions for the implementation of the first saturation dives. The author discusses the general methodology of validation and verification of the assumed decompression, referring to the Polish conditions. He describes how the medical, technical, and organizational problems of implementation of saturation diving were solved in the pioneering period against the background of world achievements. Furthermore, the author describes Polish habitat constructions of Meduza and Geonur types and their application to underwater work on the Polish shelf and coastal areas. Despite the great progress in the field of medicine and technology, as well as organization, the problems of saturation diving, despite the passage of time, remain relevant, as these are the most difficult dives from the point of view of organization, underwater physiology and safety technology.
Establishment of national diagnostic dose reference levels (DRLs) for routine computed tomography examinations in Jordan
Authors: Radaideh Khaldoon , Al-Radaideh Ali , Ramli Ramzun Maizan , Saleh Abdallah , Alshayeb Rasha
Published: February 2023

Background: Dose reference levels (DRLs) are used as indicators as well as guidance for dose optimization and to ensure justification of appropriate dose for a given clinical indication. The main aims of this study were to establish local DRLs for each CT imaging protocol as a reference point to evaluate the radiation dose indices and to compare our DRLs with those established in other countries and against the internationally reported guidelines.

Materials and methods: 2000 CT dose reports of different adult imaging protocols from January 2021 until April 2022 were collected retrospectively at different hospitals in Jordan. Data were collected from CT scans that were performed using different types and models of CT scanners and included four adult non-enhanced, helical CT imaging protocols; Head, Chest, Abdomen-Pelvis, and Chest-Abdomen-Pelvis.

Results: The average doses of CTDIvol, DLP, and effective dose were (65.11 mGy, 1232.71 mGy·cm, 2.83 mSv) for the head scan, (16.6 mGy, 586.6 mGy·cm, 8.21 mSv) for the chest scan, (17.91 mGy, 929.9 mGy·cm, 13.9 mSv) for the abdomen-pelvis scan, and (19.3 mGy, 1152 mGy·cm, 17.25 mSv) for the chest-abdomen-pelvis scan. In comparison with results from different international studies, DLP values measured in the present study were lower for the chest-abdomen-pelvis and abdomen-pelvis CT scans, and higher for the head CT and chest CT scans.

Conclusions: It is very important that each country establishes its own DRLs and compares them with those reported by other countries, especially the developed ones. It is also important that these levels are regularly updated.
Optimal Dispatch of the Energy Demand in Electrical Distribution Grid with Reserve Scheduling
Authors: Dwijendra Ngakan Ketut Acwin , Anupong Wongchai , Althahabi Ahmed Majed , Abdulameer Sabah Auda , Al-Azzawi Waleed Khalid , Jaber Mustafa Musa , Zahra Musaddak Maher Abdul , Al Mashhadani Zuhair I.
Published: February 2023

The operation of the electrical systems is a major problem for electrical companies’ subject to uncertainties threatening. In this study, the optimal management of the energy demand in the electrical distribution grid is done by interval optimization approach under electrical price uncertainty. The management of the energy demand is implemented via incentive-based modelling of the demand response programs (DRPs). The incentive-based modelling as reserve, and based on bid price for reduction of the electrical demand at peak hours is proposed. The interval optimization approach is used for the minimization of the electrical price uncertainty effects. The main objective in the proposed approach is minimizing operation cost; epsilon-constraint method is utilized to solve the problem. Finally, an electrical distribution grid has been used at various case studies to numerical simulation results and positive effects of the proposed modelling under uncertainties.
The Role of Leptin and Adiponectin in Rheumatoid Arthritis
Authors: Mikic Stefan , Jakovljevic Vladimir , Veselinovic Mirjana
Published: February 2023

Rheumatoid arthritis (RA) is an autoimmune systemic inflammatory disease, characterized by chronic synovial inflammation and destruction of cartilage and bone, results in varying degrees of deformity and functional disability. Previous research has shown that there is a link between adipokines and RA, but also other systemic diseases such as cardiovascular disease and diabetes mellitus. Adipokines are biologically active substances, which are predominantly or exclusively secreted from adipocytes of adipose tissue, or other adipose tissue cells such as: preadipocytes, immune cells infiltrated in AT, or other cell types within this tissue. These molecules play a significant role in energy homeostasis and metabolism regulation, and are also involved in chronic inflammation and metabolic dysfunctions. Some of the adipokines act like hormones in glucose homeostasis and appetite regulation, while others, like cytokines, support the link between obesity and insulin resistance with the immune system and the inflammatory process. However, the clear role of adipokines in pathological conditions has not yet been established. This review will focus on current knowledge about the role of the two most prominent adipokines, leptin and adiponectin, in the pathogenesis of RA.
Identification Environmentally Friendly Fishing Gear Tools Based on the Code of Conduct for Responsible Fisheries at Aceh Barat Daya
Authors: Mutia Aprilla Ratna , Musiani Musiani , Chaliluddin Chaliluddin , Djamani Rianjuanda , Muhammad Muhammad
Published: February 2023

Aceh Barat Daya is a land area of Aceh which is directly opposite the Indian Ocean. The fishing gear in Southwest Aceh Barat Daya includes; hand line fishing gear, long line fishing gear, tug line fishing gear, ring trawl fishing gear, beach trawl fishing gear, floating chart fishing gear, gill net fishing gear. The purpose of this study was to identify environmentally friendly fishing tools based on the Code of Conduct for Responsible Fisheries (CCRF). Data collection was carried out by interviewing fishermen using descriptive methods. This research was conducted in November 2021. The results of this study indicate that environmentally friendly fishing gear are; tuna longline, tug line, hand line, gill net, floating chart, ring trawler. While fishing gear that is less environmentally friendly are; Beach trawler.Keywords: Aceh, Aceh Barat Daya, CCRF, environmentally friendly, fishing gear
A Study of Essential Oils from Patchouli (Pogostemon cablin Benth.) and Its Potential as an Antivirus Agent to Relieve Symptoms of COVID-19
Authors: Isnaini Nadia , Khairan Khairan , Faradhilla Meutia , Sufriadi Elly , Prajaputra Vicky , Ginting Binawati , Muhammad Syaifullah , Lufika Raihan Dara
Published: February 2023

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a new type of virus that attacks the respiratory system and has caused the global epidemic of coronavirus disease 2019 (COVID-19). Some persons who are infected with this virus develop symptoms ranging from a typical cold to fever to more severe illnesses, such as Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS). The development of a SARS-CoV-2 vaccine is being actively researched but will likely take more than a year to become available to the general public. As a result, numerous researchers are actively extracting the components of active chemicals in herbal plants with antiviral potentials, such as patchouli (Pogostemon cablin Benth.). Patchouli essential oil, found in this Lamiaceae plant, has a wide range of effects, including antibacterial, antifungal, antioxidant, antimutagenic, anticancer, anti-inflammatory, and aromatherapy. More than 140 chemicals have been isolated and identified from the patchouli plant, including terpenoids, phytosterols, flavonoids, organic acids, lignins, alkaloids, glycosides, alcohols, and aldehydes. Patchouli essential oil is mainly composed of sesquiterpene molecules, most of which are patchouli alcohol. Essential oils derived from herbal plant extracts have also been shown to be potent antiviral agents against various viruses. The efficacy of patchouli essential oil, as well as its potential as an antiviral agent to treat SARSCoV-2, will be investigated in this review.
Self-Healing Concept in The Quran: An Analysis of Sakana and Ithma'anna Words
Authors: Robbani* A. Syahid , Mukhlis Abdul , Astari Rika , Maryamah Nur Aini , Aufa Alifatul
Published: February 2023

Self-healing term is widely used by the youth generation lately in the cyber and real world. People comprehend the term as the effort to heal oneself from heart discomfort caused by a failure, pressure, anxiety, disappointment, insecurity, et cetera, and the effort to seek inner serenity and tranquility. However, unfortunately, some people choose to do self-healing in the wrong and deviant way. Therefore, this research aims to straighten up and reveal the self-healing concept in the Quran by analyzing the words Sakana and Ithma'anna and their derivation embodying the meaning of tranquility. This study is library research by implementing a semantic approach. The applied data collection method was documentation using primary and secondary data, i.e., the Quran, Al-Misbah, Al-Qurthubi, and Ibn Kathir exegesis. This research result indicates that Allah sends down tranquility for those with mental readiness and decorates themselves with commendable qualities. This research also conveys several deeds that can be done as self-healing, which in reality is contrary to the habits of today's younger generation. Eventually, the serenity that all man desires is eternal tranquility, which is included in the group of people who are called upon by Allah and addressed by 'O tranquil soul' when he dies and on the Day of Resurrection.
The influence of the border position of the Russian-Ukrainian border regions on their regional development
Authors: EPIFANOVA Natal'ya S.
Published: February 2023

Subject. The article considers problems of international trade and geopolitical rivalry in the modern world. Objectives. The purpose is to assess the economic development of regions of the Russian Federation bordering Ukraine. Methods. The study employs methods of synthesis, analysis, and generalization. Results. I made calculations and interpreted various indicators of economic development of border regions of the Russian Federation, having a common border with Ukraine, calculated the Grubel-Lloyd index for major commodity groups for a number of border areas. The paper shows that after the political crisis of 2014, there was a reorientation of foreign economic relations in most Russian regions bordering Ukraine, and the barrier function of the border began to dominate over the contact one. Conclusions. To increase the effectiveness of the participation of border regions in foreign trade of the Russian Federation, it is crucial to apply a differentiated approach to regional policy implementation.
State support for small and medium-sized businesses of the Russian Federation to overcome the effects of sanction restrictions in 2022: Issues of application
Authors: UMAROV Husan S.
Published: February 2023

Subject. This article discusses the development issues of small and medium-sized businesses in the context of large-scale sanctions against the Russian economy sectors, as well as individuals and legal entities.
Objectives. The article aims to define the role of the government to strengthen and improve the Russian economy in the context of sanction restrictions and overcome the consequences of the coronavirus pandemic.
Methods. For the study, I used general scientific research methods.
Results. Based on a comparative analysis of the financial indicators of the development of small and medium-sized businesses for 2021–2022, the article presents a preliminary assessment of the effectiveness of State support for small and medium-sized businesses in Russia in 2022.
Conclusions. Prompt response to the imposition of new sanctions is required at the legislative level.
The Effectiveness of Productive Zakat Distribution on The Welfare Level of Mustahiq a Study at BAZNAS in Depok City
Authors: Khodijah Qodiryani Masayu Ustadzah , Amelia Erika
Published: February 2023

Poverty is the result of social problems and inequality in development. This is evidenced by an increase in unemployment of 9.87% and a decrease in people's income of 0.09% per capita. The existence of the Zakat Fund Policy managed by BAZNAS has succeeded in reducing the percentage of poverty by 0.05% in 2022. However, this decline is still far from recovering as before due to the inequality between urban and rural areas, in particular, Depok City, West Java, which has the smallest poverty percentage. This study aims to determine the effectiveness of zakat (DCR) and the BAZNAS Welfare Index (IKB) to calculate the welfare level of 100 Mustahiq. Then use a linear regression approach to find the effect. The results of the study prove that BAZNAS Depok City has an effectiveness in distributing zakat funds of 79%, and the results of the IKB assessment are declared good, which is 0.63. Therefore, with these data, it is proven that the effect of the effectiveness of distribution on the welfare level of Mustahiq is 79%. These results imply that the BAZNAS Depok City Zakat Distribution Program has been effective.
The analysis of the current state of medicines for ophthalmology registered in Ukraine
Authors: Fetisova O. G. , Andryukova L. М. , Shpychak O. S.
Published: February 2023

Aim. To analyze the range of ophthalmic medicines registered in Ukraine as of May 2022.
Materials and methods. The classical (traditional) method of analysis and generalization of information was used for the study. The analysis of the range of ophthalmic medicines (MD) registered in Ukraine was carried out using data from the State Register of Medicines of Ukraine and Compendium 2022 listing medicines according to the ATC classification system. The following characteristics of the study were selected: drug belonging to a certain group of the ATC classification, dosage form (DF), component by a medicinal substance (MS), manufacturing companies and their countries of origin, the container filling volume and the primary packaging material for liquid DF.
Results. The article presents the results of the analysis of the range of drugs for the treatment of various eye diseases. As of May 2022, 293 drugs for the treatment of eye diseases were registered in the State Register of Medicines of Ukraine, of which 25 entries were duplicated due to the introduction of changes in the information about identical medicinal products and the information of them was not taken into account in the study. It has been found that there is a significant range of drugs for the treatment of various eye diseases, covering all groups of medicines according to the ATC classification. The studies have shown the overwhelming dominance of the following characteristics of ophthalmic medicines in each of the categories studied: according to the ATC – S01E anti-glaucoma and miotic agents, according to the origin of the manufacturer – foreign manufacturers, according to DF – eye drops, according to the drug composition – monocomponent, by the container filling volume – 5 ml, and by the material of the primary packaging – polymer containers.
Conclusions. The presence of a wide assortment provides opportunities to more fully meet the needs of ophthalmological branch of medicine in ophthalmic medicines of all groups of drugs according to the ATС classification.
Fotogrametría de alta resolución espacial: utilizando el método estructura de movimiento (SfM) y vehículos aéreos no tripulados.
Authors: De la Llata Quiroga Edna
Published: February 2023

La obtención de modelos de elevación digital de alta resolución espacial requiere de tecnologías geoespaciales modernas, como la Altimetría Laser y el escaneo láser terrestre. Sin embargo, estas tecnologías presentan algunas limitaciones, como un alto costo y el requerimiento de una elevada logística. La integración de novedosos avances en tecnología computacional y análisis de imágenes, junto con el uso de plataformas aéreas de bajo costo representan una alternativa viable para la generación de fotogrametría de alta precisión. Este trabajo integra el uso de vehículos aéreos no tripulados de bajo costo con cámaras fotográficas digitales comunes y el método de análisis de imágenes conocido como estructura de movimiento. Esta integración permite el desarrollo de fotogrametría con resolución espacial por debajo de un metro utilizando un mínimo de puntos de control. Se generó una ortofoto con resolución de 20cm y un modelo de elevación digital con resolución de un metro mediante el método de estructura de movimiento. El modelo de elevación digital presentó ventajas sobre un modelo generado por altimetría laser (LiDAR) cuya resolución espacial es de cinco metros, mientras que el método de SfM presentó mayor resolución, así como una red de drenaje con mayor detalle. Los resultados de este trabajo pueden ayudar al desarrollo de técnicas de bajo costo para la detección de cambios en la superficie terrestre que requieren de alta precisión y continuo monitoreo.
Gobernanza territorial y ordenamiento territorial en la Mancomunidad del Chocó Andino de Pichincha
Authors: Campo Ramírez Lizeth Patricia
Published: February 2023

La noción de gobernanza es parte de un marco referencial que nos permite comprender y analizar los procesos organizativos y participativos de la gestión pública a nivel territorial. Desde esta perspectiva, el objetivo central de esta investigación es analizar las dinámicas y transformaciones territoriales en las comunidades y espacios de la Mancomunidad del Chocó de Pichincha, en adelante MCA, pasando por los procesos de gobernanza y ordenamiento, los actores clave y los modelos de gestión territorial que se traslapan en la realidad empírica de la mancomunidad, esto en el periodo comprendido entre su declaratoria 2014 y 2021. El estudio devela que la MCA aparece como una plataforma de coordinación intermedia, capaz de crear nuevos espacios de negociación efectivos y flexibles entre múltiples actores, mediante co-arreglos que reúnen tanto la administración central y los intereses del colectivo y del territorio al que atiende, a la luz de la gobernanza ambiental. Las experiencias de gestión territorial como las que se dan bajo la MCA, muestran que sí es posible avanzar de manera simultánea en el doble objetivo de fortalecer los medios de vida rurales a la vez que la conservación, la regulación y la restauración sostenible de los paisajes andinos.
La transformación cultural de las cosas y las formas de hacer. Una apuesta en diálogo a partir de los trabajos de Sennet y Appadurai
Authors: Ramón Margueliche Juan Cruz
Published: February 2023

La propuesta del trabajo se centra en poner en diálogo dos obras de corte cultural. La primera se refiere a “La vida social de las cosas. Perspectiva cultural de las mercancías” del antropólogo indio Arjun Appadurai. La segunda obra se centra en el libro “El artesano” del sociólogo estadounidense Richard Sennet. Ambos trabajos se ponen en diálogo e intercambio para repensar las trasformaciones culturales que atraviesa la sociedad en relación al carácter ontológico de las cosas y a las (nuevas) formas de hacer. Muchas veces trabajamos sobre procesos y transformaciones a gran escala perdiendo así de vista las pequeñas piezas socio-culturales que configuran las vidas de las sociedades. En este sentido, la propuesta de Appadurai parte de una antropología de las cosas, en donde para comprender la vida social de los objetos debemos seguirlos, ya que sus significados están inscriptos en sus formas, usos y trayectorias (Appadurai, 1991). Por su parte, Sennet rescata el rol del artesano por su conexión entre la mano y la cabeza, como un actor-productor de una materialidad que debe ser reivindicada. En este sentido, el artesano busca una recompensa emocional, a partir de determinados logros producto de su habilidad única. Y se diferencian estas formas de hacer con los patrones de producción y consumo que impone el sistema capitalista.  Por lo tanto, el objetivo del trabajo se centra en comprender la perspectiva socio-cultural de las cosas y de las formas de hacer en los tiempos actuales, tratando de identificar otras formas de abordar estos elementos y categorías. La mirada retrospectiva e historiográfica les permite a los autores centrase en objetos de estudios para comprender sus tensiones, cambios y (dis) continuidades. La metodología utilizada para este artículo se sustentó en una lectura sistematizada de los dos libros identificando campos relacionales para poner las obras en diálogo. Para ello se decidió tomar una tercera obra “La corrosión del carácter. Las consecuencias personales del trabajo bajo el nuevo capitalismo” también de Sennet. Esta elección se sustentó en que este tercer libro dispone de una estructura argumentativa que nos permite aunar estas ideas en una unidad espacial determinada. Ante la ausencia de un trabajo de campo, dicha obra nos permitió reponer los campos y categorías emergentes en un plano de corte empírico. Consideramos que, si bien no se puede entender como un trabajo de campo en el sentido tradicional, sin embargo, la experiencia analizada en el texto nos permite escenificar las reflexiones de los autores en los textos propuestos.
Implementing Kampus Merdeka
Authors: Afriansyah Anggi , Voak Adam , Fairman Brian , Suryono Ivan , Muslim Fikri
Published: February 2023

In 2020, the Ministry of Education, Culture, Research and Technology of the Republic of Indonesia introduced a significant educational policy reform entitled Kampus Merdeka. Kampus Merdeka provides a national approach for Work Integrated Learning (WIL) opportunities for Higher Education students to enhance their future career prospects. However, many challenges have clouded Kampus Merdeka’s execution and its desired resultant impact. Indonesian Higher Education institutions are experiencing significant implementation challenges. This discussion paper aims to undertake a review of the current available literature related to Kampus Merdeka, to better understand the policy’s broader operationalization and future implications for the sector. This discussion focuses on four key themes: Higher Education Management and Administrative Practices, Curriculum Change, Academic Staff Preparedness and Defining and Reshaping Roles and Responsibilities of Academics. The article concludes with reflections concerning the strengthening of the evidence base for Kampus Merdeka’s future operationalization.
أثر إستراتيجية التفكير المقلوب في تعديل الفهم الخاطئ للمفاهيم الكيميائية لدى طلاب الصف الثاني المتوسط
Authors: Issa Al-Jubouri Mahmoud Khalaf Obaid
Published: February 2023

هدف البحث التعرف على أثر إستراتيجية التفكير المقلوب في تعديل الفهم الخاطئ للمفاهيم الكيميائية لدى طلاب الصف الثاني المتوسط، تكونت عينة البحث من (54) طالباً موزعين بالتساوي على المجموعتين التجريبية والضابطة، بواقع(27) طالباً في كل منهما، ولتحقيق هدف البحث وضع الباحث فرضية صفرية رئيسية تتفرع منها ثلاث فرضيات، كما قام بإعداد اداة البحث الاختبار التشخيصي للمفاهيم ذات الفهم الخاطئ، الاختبار البعدي للمفاهيم ذات الفهم الخاطئ، والتأكد من صدقه وثباته، وبعد انتهاء التجربة والتي استمرت لأكثر من شهرين تم اختبار عينة البحث بعديا، ولتحليل البيانات احصائيا تم استخدام نظام الرزم الاحصائية (Spss)، وقد اظهرت النتائج تفوق طلاب المجموعة التجريبية التي درست باستخدام استراتيجية التفكير المقلوب على طلاب المجموعة الضابطة في "اختبار تعديل الفهم الخاطئ"
Debris Collision Risk Analysis Following Simulated Cislunar Spacecraft Explosions
Authors: Boone Nathan R. , Bettinger Robert A.
Published: February 2023

This research simulates spacecraft explosions in cislunar space and analyzes the resulting risk to other notional spacecraft. Three case studies are considered, which include simulations of spacecraft explosions during Earth–moon Hohmann transfers, along the manifold of the [Formula: see text] Earth–moon Lagrange point, and at the stable [Formula: see text] and [Formula: see text] Earth–moon Lagrange points. Debris from the explosions is propagated using a four-body dynamical model that incorporates the gravitational forces of the Earth, moon, and sun. Finally, the risk to nearby cislunar spacecraft is quantified using two different models for the vulnerability of spacecraft to debris, which include a logistic vulnerability model that incorporates only debris particle mass and a ballistic limit vulnerability model that incorporates both particle mass and velocity. The results from each model are compared to evaluate their application to cislunar debris scenarios. The results of this study showed potential debris hazards to spacecraft near Earth from a mishap during an Earth–moon transfer and hazard probabilities to nearby cislunar spacecraft on the order of [Formula: see text] from Lagrange point mishaps. Overall, research into cislunar debris propagation enhances operational planning outside the traditional near-Earth paradigm of spacecraft mission operations and increases understanding of the debris-related consequences of mishaps within this orbital regime.
Reliability Optimization of a Mars Oxygen Production Plant
Authors: Hinterman Eric D. , Khopkar Piyush P.
Published: February 2023

The Mars Oxygen ISRU Experiment (MOXIE) is an instrument onboard NASA’s Perseverance rover. On April 20th, 2021, MOXIE generated oxygen on Mars from the carbon dioxide present in the Martian atmosphere, demonstrating, for the first time, in-situ resource utilization (ISRU) on the surface of another celestial body. Learnings from MOXIE on Mars have aided in the design of a scaled-up version of MOXIE. Oxygen generated from this scaled-up system would be used as propellant in a Mars Ascent Vehicle that would enable the crew to return to Earth once their mission was complete, as well as in life support systems. Failure of any of its subsystems would result in a loss of mission due to the inability of the crew to return to Earth. Accordingly, risk analysis is one of the most crucial steps in the design of the scaled-up MOXIE that must be completed and understood before building and launching the system to Mars. The intent of this paper is to present a comprehensive, quantitative analysis of the operational risks associated with this Mars ISRU plant. We then present an approach to optimize the reliability of each subsystem using a modified probabilistic risk assessment and heuristics-based optimization algorithm.
Mission Architecture to Reach and Operate at the Focal Region of the Solar Gravitational Lens
Authors: Helvajian Henry , Rosenthal Alan , Poklemba John , Battista Thomas A. , DiPrinzio Marc D. , Neff Jon M. , McVey John P. , Toth Viktor T. , Turyshev Slava G.
Published: February 2023

We present initial results of an engineering study on the feasibility of a space mission to the focal region of the solar gravitational lens (SGL). The mission goal is to conduct exoplanet imaging operations at heliocentric distances in the range [Formula: see text] astronomical units (AU). Starting at 547.6 AU from the sun, light from an exoplanet located behind the sun is greatly amplified by the SGL. The objective is to capture this light and use it for multipixel imaging of an exoplanet up to 100 light years distant. Using a meter-class telescope, one can capture the data needed to produce images of the exoplanet with a surface resolution measured in tens of kilometers and to identify signs of habitability. The data are acquired pixel by pixel while moving an imaging spacecraft within the image. Given the long duration of the mission, decades to reach 900 AU, we address an architecture for the fastest possible transit time while reducing mission risk and overall cost. The mission architecture implements solar sailing technologies and in-space aggregation of modularized functional units to form mission capable spacecraft. The study reveals elements of such a challenging mission, but it is nevertheless found to be feasible with technologies that are either extant or in active development.
Propeller Rotation Effects on Pitching Moment for Transport Aircraft with Conventional Tail
Authors: Zhao Shuai , Li Jie , Yang Zhao , Qian Ruizhan , Xu Ruifei
Published: February 2023

The effects of the propeller rotation direction on the pitching moment characteristics for a typical twin-engine turboprop aircraft with a conventional tail at low and moderate angles of attack under high-power conditions are investigated through unsteady Reynolds-averaged Navier–Stokes simulations. The numerical method is validated using wind-tunnel data for a twin-engine T-tail turboprop aircraft. The computational results of the conventional tail configurations indicate that the corotating propellers significantly degrade the longitudinal stability at low angles of attack in the takeoff configuration. By comparison with corotating propellers, counter-rotating inboard-up propellers not only increase the lift but also lead to a notable improvement in longitudinal stability, especially at low angles of attack. In contrast, the counter-rotating outboard-up propellers further reduce the negative pitching moment curve slope of the airframe. Analysis of the flowfield demonstrates that the effects of the propeller rotation direction significantly alter the downwash gradient at the horizontal tailplane by affecting the vertical location of the high-downwash region. The effectiveness of the horizontal tailplane and the longitudinal stability of the aircraft are therefore changed.
Level-Set Mass-Conservative Front-Tracking Technique for Multistep Simulations of In-Flight Ice Accretion
Authors: Donizetti Alessandro , Bellosta Tommaso , Rausa Andrea , Re Barbara , Guardone Alberto
Published: February 2023

This paper presents a novel level-set-based approach to model evolving boundary problems for in-flight ice accretion. No partial differential equations are solved as in the standard level-set formulation, but simple geometrical quantities are employed to provide an implicit discretization of the updated boundary. This method avoids mesh entanglements and grid intersections typical of algebraic and mesh deforming techniques, making it suitable for generating a body-fitted discretization of arbitrarily complex geometries as in-flight ice shapes, including the collision of separate ice fronts. Moreover, this paper presents a local ice thickness correction, which accounts for the body’s curvature, to conserve the prescribed iced mass locally. The verification includes ice accretion over an ellipse and a manufactured example to show the proposed strategy’s advantages and robustness compared to standard algebraic methods. Finally, the method is applied to ice accretion problems. A temporal and grid convergence study is presented for automatic multistep in-flight simulations over a NACA0012 airfoil in rime, glaze, and mixed ice conditions.