bluuebunny/crossref_metadata_2025 huggingface dataset:
Linear drive on the base of planetary pinion gear
Authors:   Ermolaev M.M. Pandurov M.A.
Published: August 2022

A linear drive based on a planetary pinion gear is developed. Known methods for converting rotational motion into translational one and their disadvantages are considered. A kinematic scheme of the developed mechanism that converts rotational motion into translational one is given. The calculations of the geometry of the engagement and the distribution of loads between its elements, the method of estimating of its resource are presented.
Keywords: movement transformation mechanism, planetary pinion gear.
mmermolaev@gmail.com
Prospects for the development of tolerance systems in mechanical engineering
Authors:   Denisov V.A. Kataev Yu.V. Solomashkin A.A. Gerasimov V.S.
Published: August 2022

Tolerance systems are presented for different modes of operation of machine parts, which are necessary when diagnosing the state of a part of a technical device in order to assess its reliability in terms of residual life. The directions of development of the system of tolerances with the use of information systems for monitoring resource indicators are substantiated.
Keywords: technical device, erviceability, resource, tolerance, tolerance system, diagnostics, wear rate, failure, operating time. va.denisov@mail.ru, ykataev@mail.ru, littor2013@gmail.com, shrecycling@yandex.ru
Library users, offerings and types of services in Poland
Authors: Fedorowicz-Kruszewska Małgorzata , Kruszewski Tomasz
Published: August 2022

Thesis/purpose of the article – The purpose of this article is to provide an overview of modern library and information services for users of Polish public and academic libraries. These have emerged due to the transformations resulting from technological progress, new document formats, innovative ways in which information circulates, evolving environments, and user needs, as well as social phenomena such as fragmentation of society, population ageing and a very low level of readership in Poland. Research methodology – Analysis and critical review of literature as well as content-related assessment of web services were performed. Major outputs/conclusions – The outline of library services offered by Polish public and academic libraries provided in this article is not exhaustive. However, it can reasonably lead to the conclusion that the library offerings in Poland in the 2nd decade of the 21st century is incomparably more extensive than even a dozen years back. The social and political transformations following 1989, Poland’s membership in European structures, the evolution of information and communication technologies, changing user needs and social metamorphoses as well as solutions developed in other countries being implemented have all largely shaped the current approach to the role of libraries. Libraries extend their fields of activity, entering areas previously set aside for cultural institutions. By offering a wider range of services for very diverse groups of recipients, they are becoming increasingly rooted in the public space.
Changing the paradigm of acquisition and cataloging in Polish research libraries. The impact of new information technology
Authors: Sanetra Krystyna
Published: August 2022

Thesis/purpose of the article – the purpose of this article is to present the impact of new information technologies on building and cataloguing library resources, and the ways modern research libraries have been functioning in the last 25 years. Methods – the analysis presented in the article is based on a thorough review of the literature, including conference proceedings, reports documenting the activities of research libraries, a study of statistical data illustrating changes in library holdings as well the author’s own knowledge and expertise acquired in the course of her work at the Jagiellonian Library and in cooperation with other libraries. Results / conclusions – the dissemination and implementation of new information technology has resulted in libraries starting to work in a hybrid model. Using modern tools they support both analogue and digital data as well metadata. Librarians, analysing the use of resources offered to users, favour to an increasing extent an access library model. The creation and development of this hybrid information environment has resulted in a wide cooperation of librarians that seems to facilitate meeting the coming challenges and changes in the way libraries will function in 21st century, where an important part will most likely be played by the further development of information technology.
NARODOWA STRATEGIA ROZWOJU BIBLIOTEK – NA PRZYKŁADZIE REPUBLIKI CZESKIEJ
Authors: NALEWAJSKA LILIANNA , NALEWAJSKA LILIANNA
Published: August 2022

Teza/cel – Narodowe strategie dla bibliotek są dokumentami kreślącymi kierunki rozwoju i modernizacji książnic w skali kraju. Celem artykułu jest przybliżenie tego rodzaju zapisów na przykładzie koncepcji strategii rozwoju książnic w Republice Czeskiej. Tło stanowią podobne dokumenty z innych krajów. Metody badań – W celu przeanalizowania dokumentów strategicznych oraz innych zapisów dotyczących standardów usług bibliotecznych wykorzystano metodę desk research – analizę piśmiennictwa dostępnego w sieci Internet. Wyniki i wnioski – Tworzenie krajowych strategii rozwoju bibliotek nie jest powszechną praktyką. Brak takich działań m.in. w Polsce. W krajach, gdzie tego typu dokumenty funkcjonują, powstają często na szczeblu ministerialnym lub są aprobowane przez instytucje rządowe. Strategie rozwoju bibliotek są tworzone po to, bywspomagały ustrukturyzowany rozwój książnic oraz wzmacniały ich oddziaływanie na społeczeństwo, zgodnie z wyznaczonymi w dokumentach kierunkami działań.
OTWARTE DANE BADAWCZE: SONDAŻOWA ANALIZA DOŚWIADCZEŃ I POTRZEB PRACOWNIKÓW UNIWERSYTETU IM. ADAMA MICKIEWICZA W POZNANIU
Authors: Kuczkowska Maria
Published: August 2022

Teza/cel: Otwarte dane badawcze od kilku lat stanowią temat dyskusji akademickich – mają zarówno gorących orędowników, jak i zagorzałych przeciwników. Dostrzegając różnorodność postaw, Biblioteka Uniwersytecka w Poznaniu (BU) wraz z pełnomocnikiem ds. otwartego dostępu Uniwersytetu im. Adama Mickiewicza (UAM) w Poznaniu zwróciła się z prośbą do naukowców z UAM o wypełnienie ankiety. Celem badania było zdiagnozowanie poziomu wiedzy, umiejętności i potrzeb pracowników z zakresu udostępniania danych badawczych. Postawiono hipotezę, że pracownicy UAM będą w tym zakresie zróżnicowani, a zróżnicowanie to będzie wynikać np. z reprezentowanych przez nich dyscyplin naukowych, stanowiska czy stażu pracy. Metoda: W badaniu zastosowano technikę ankiety; kwestionariusz udostępniono online w wewnętrznej sieci uczelnianej. Ankieta miała charakter jednorazowy; składała się z 13 pytań – respondenci mieli do wyboru pytania zarówno zamknięte jednokrotnego i wielokrotnego wyboru, jak i pytania otwarte. Wnioski: Hipoteza, iż stosunek do otwartych danych badawczych będzie wynikać z reprezentowanych dyscyplin naukowych, stanowiska czy stażu pracy, potwierdziła się tylko częściowo, ukazując, że choć na UAM tego typu zróżnicowanie występuje, to jego determinantami muszą być inne zmienne. Zaskakująca okazała się słaba znajomość zagadnień prawnych związanych z udostępnianiem danych badawczych. Wyraźnie zaznaczona przez respondentów potrzeba wsparcia w kwestii udostępniania danych badawczych wyznacza nowe zadania przed Biblioteką Uniwersytecką w Poznaniu.
IS SPACE FOR PEOPLE MORE IMPORTANT THAN SPACE FOR BOOKS? LIBRARY CONSTRUCTION IN THE LUBUSKIE VOIVODSHIP - NEW SEATS AND ARRANGEMENTS
Authors: Simonjetz Monika
Published: August 2022

Thesis/goal: The aim of the article is to present the implementation of library construction in the Lubuskie Voivodeship in 2010-2019. Research methods: participant observation was the basis; visits to libraries at various stages of construction/modernization, analysis of articles and statements about projects in the pages of regional literature, talks with librarians. Results and conclusions: on the basis of the analysis, 13 projects were presented, implemented in 10 towns of the Lubuskie Voivodeship: Kargowa, Nowa Sól, Wschowa, Zwierzyniec, Szczaniec, Kostrzyn nad Odrą, Międzyrzecz, Iłowa, Krosno Odrzańskie and Zielona Góra. In Zielona Góra, two modern branches were created in the main building, the seat of one of the city branches was changed, and an out-of-town branch was created.
Inclusão e diversidade: pessoas com deficiência no mercado de trabalho
Authors: Silva Andrea Quaesner , Grimm Isabel Jurema
Published: August 2022

Abordar a inclusão de pessoas com deficiência no mercado de trabalho brasileiro, implica considerar as complexidades inerentes à condição de ser deficiente e as transformações em nível social e organizacional, sucedidas ao longo das últimas décadas. Dessa forma, este artigo investiga a inclusão de pessoas com deficiência (PcDs) no mercado de trabalho,  identificando oportunidades de melhoria para enquadrá-lo nos preceitos de responsabilidade legal e social. A pesquisa ocorreu em uma empresa do setor de varejo, localizada na cidade de Curitiba (PR). De natureza qualitativa e viés descritivo, a coleta de dados aconteceu por meio de entrevistas  junto a lideranças e colaboradores portadores de deficiência.  Como resultado cconstatou-se a ausência de um projeto estruturado para as práticas de governança que integrem às estratégias da inclusão na organização o que pode dificultar o cumprimento da lei de cotas.
Relationship of Knowledge and Attitude about Stunting with Stunting Evidence
Authors: Indriani Farihah , Romdiyah  , Setiani Fibrinika Tuta
Published: August 2022

Introduction: Stunting is an abnormal growth of children that occurs in toddlers due to lack of nutrition from the womb until birth. Children who experience stunting have impaired growth and development. The objectives of the study was to measure the relationship between knowledge and attitudes about stunting with the incidence of stunting.

Methods: The research approach used a descriptive study with a cross sectional design. The respondents in this study were all mothers that had toddlers. The sample of the study were mothers who had children aged 0–59 months as many as 48 mothers. Analysis of univariate with frequency distribution and bivariate analysis with Chi-Square.

Results: Based on the results of the research, knowledge about stunting was good, namely 37 (77.1%), and mother's attitude about stunting was positive at 40 (83.3%) and stunting incidence was 62.5%. The findings with the Chi-Square test analysis revealed a significant effect between knowledge, attitudes about stunting and the incidence of stunting where knowledge with prevalence values and confidence intervals is 7.2 (1.59 – 32, 67) and attitudes with prevalence values and confidence intervals of 7, 0 (1.23 – 39.78).

Conclusion: The study declares that mothers with good knowledge effect signifantly toward incidence of stunting. Mothers with positive attitudes effect significantly toward stunting incidences.
Comparison of the Kalman Filter and the Unbiased FIR Filter for Network Systems with Multiples Output Delays and Lost Data
Authors: Uribe-Murcia Karen , Ortega-Contreras Jorge A. , Pale-Ramon Eli G. , Vazquez-Olguin Miguel , Shmaliy Yuriy S.
Published: August 2022

In this article, a comparison of the UFIR and Kalman filter to estimate a tracking vehicle system variables is developed considering two possible observation output models. The time stamp approach and the predictive compensation are used to analyze the problem from multiple perturbations, which produces random delayed data and losses during transmissions. For the estimation, a transformation model and a decorrelation covariance matrices are developed with the aim of assure optimal conditions and minimizing the estimation error. Finally, several real situations, miss modeling, uncertain noise covariances, and uncertain probabilities are proposed to demonstrate the effectiveness and robustness of the filter proposed.
Complete Electrical Equivalent Circuit Based Modeling and Analysis of Permanent Magnet Direct Current (DC) Motors
Authors: Altay Abdullah , Yildiz Ali Bekir
Published: August 2022

The modeling and analysis of permanent-magnet DC motor, whose attractiveness has increased with the availability of high-energy rare earth permanent magnet materials such as SmCo and NdFeB, is very important in recent years. The analysis of the established model is very important for researchers and engineers before siteworks. The most important features of the established model are that the equations are simple to obtain, the model can be set up using a simple platform, and ease of model analysis. Generally, for DC motor models, only the armature circuit model is given and only the equations of the mechanical system are given. In the armature circuit model, equations are obtained by switching to the s-domain, and analyzes are made on highly advanced platforms by using these equations. In this study, electrical equivalents of mechanical equations were obtained and both armature circuit and mechanical parameters of a DC motor were expressed as electrical circuit elements. Although the motor model includes mechanical parameters and variables, the whole model is expressed only with electrical elements and variables. Thus, a complete electrical equivalent circuit is proposed for the dynamic model of the permanent-magnet DC motor, in which both the armature and the mechanical part can be modeled as an electrical circuit. With the analyzes, the performance of the permanent magnet DC motor model was examined and it was seen that the system dynamics responses were compatible.
ВІРТУАЛЬНИЙ ВІЗИТ ДО ПІВНІЧНО-ЗАХІДНОГО УНІВЕРСИТЕТУ (США): ОСМИСЛЕННЯ ДОСВІДУ
Authors: Borodiyenko Oleksandra , Goldberg Bennett , Drane Denise
Published: August 2022

У статті представлено результати віртуального візиту провідного наукового співробітника відділу забезпечення якості вищої освіти Інституту вищої освіти НАПН України, доктора педагогічних наук, члена-кореспондента НАПН України Олександри Бородієнко до Північно-Західного університету (США). Схарактеризовано загальну програму візиту. Представлено тематику зустрічей з колективами Центру оцінювання програм, Інституту дизайну Сігал, Семінару викладачів фізики та астрономії. Висвітлено ключові питання, які обговорювались у ході зустрічей та становили спільний науковий і практичний інтерес: сучасний стан, проблеми та перспективи розвитку публічно-приватного партнерства закладів освіти України (на прикладі проєктів «Реалізація спільних проєктів публічно-приватного партнерства закладів професійної (професійно-технічної) освіти» (2020 р.) та «Створення наглядових рад закладів професійної (професійно-технічної) освіти» (2021 р.); сучасний стан, проблеми та перспективи розвитку партнерства між університетами та бізнесом в Україні; соціально-економічні наслідки широкомасштабної збройної агресії Російської Федерації, її вплив на систему освіти в цілому та вищої освіти зокрема; стратегії, підходи та інструменти оцінювання тренінгових програм (на прикладі проєкту з розвитку стратегічного мислення керівників закладів професійної (професійно-технічної) освіти, який реалізувався у 2019 р. за підтримки Програми розвитку ООН).
Impairments in goal-directed action and reversal learning in a proportion of individuals with psychosis
Authors: Suetani Shuichi , Baker Andrea , Garner Kelly , Cosgrove Peter , Mackay-Sim Matilda , Siskind Dan , Murray Graham K , Scott James G , Kesby James P.
Published: August 2022

Cognitive impairment in psychosis is one of the strongest predictors of functional decline. Problems with decision-making processes, such as goal-directed action and reversal learning, can reflect cortico-striatal dysfunction. The heterogenous symptoms and neurobiology observed in those with psychosis suggests that specific cognitive phenotypes may reflect differing causative mechanisms. As such, decision-making performance could identify subgroups of individuals with more severe cortico-striatal dysfunction and help to predict their functional decline. The present work evaluated the relationship between goal-directed action, reversal learning, and symptom profiles in those with psychosis. We assessed decision-making processes in healthy controls (N = 34) and those with persistent psychosis (N = 45), subclassifying subjects based on intact/impaired goal-directed action. Compared with healthy controls (<20%), a large proportion (58%) of those with persistent psychosis displayed impaired goal-directed action, predicting poor serial reversal learning performance. Computational approaches indicated that those with impaired goal-directed action had a decreased capacity to rapidly update their prior beliefs in the face of changing contingencies. Impaired decision-making also was associated with reduced levels of grandiosity and increased problems with abstract thinking. These findings suggest that prominent decision-making deficits, indicative of cortico-striatal dysfunction, are present in a large proportion of people with persistent psychosis. Moreover, these impairments would have significant functional implications in terms of planning and abstract thinking.
THE ROLE OF ELECTRONIC ACCOUNTING INFORMATION SYSTEMS IN EVALUATING THE PERFORMANCE OF NON-PROFIT GOVERNMENT UNITS
Authors: Hasson Aqeel Raham
Published: August 2022

Despite the long history since the emergence of government accounting, it has suffered some neglect by governments and accountants together. For a long time, accountants themselves have been concerned with whether the accounting information systems in government units differ from the accounting information systems in other units, and whether the developed countries have noticed the importance of electronic accounting information systems to address the problem of the stagnation of the government accounting system and have reinforced these systems with advanced types of modern technologies and advanced methods in order to be able to confront the problem and uproot it. Most developing countries turned to legalizing laws to adopt modern financial systems without taking into account the elements and requirements of ensuring the implementation of these legislations in practice. Thus, these legislations were weak and many of their provisions were not implemented in practice or were applied in a distorted way. The aim of the research is to determine the role of electronic accounting information systems in evaluating the performance of non-profit government units. The research concluded that there is a positive and incorporeal influence and correlation between electronic accounting information systems and performance evaluation of non-profit government units.
The book herbaria of Jacob Breyne (1637–1697) in the collection of Naturalis Biodiversity Center (Leiden, the Netherlands)
Authors: de Jong M. , Duistermaat H. , Stefanaki A. , van Andel T.R.
Published: August 2022

Historic herbaria can provide a wealth of information on a diversity of topics, including the past occurrence of plants, their abundance, names and uses. However,16th and 17th century herbaria are rare and very fragile, and can best be studied after digitization. The collection of Naturalis
Biodiversity Center in Leiden, the Netherlands, contains two book herbaria by Jacob Breyne (1637–1697) of Danzig (presently Gdańsk, Poland). These herbaria, dated 1659 and 1673, contain a total of 105 specimens in various states of intactness, and with or without original labels.
The identity of the specimens in the Leiden Breyne herbaria was not completely assessed previously. Here we discuss the taxa represented within these two historic herbaria as well as the information contained in the handwritten texts with in them. The two Breyne herbaria combined were found
to contain 62 species, representing 24 plant families. Both herbaria contain several species now rare around Gdańsk, including two species currently considered regionally extinct (Swertia perennis (Gentianaceae) and Dactylorhiza viridis (Orchidaceae)). Labels
with the specimens give a range of information on the collecting locations, ecology, abundance and/or use of the species. The Leiden Breyne herbaria reveal changes in the flora of northern Poland over the course of three centuries, as well as pre-Linnaean nomenclature, historic uses of plants
and international correspondence between scientists.
INCREASING STUDENTS’ ACTIVENESS AND ENGLISH VOCABULARY MASTERY THROUGH THREE PHASE TECHNIQUE
Authors: Astuti Indarti Puji
Published: August 2022

The research entitled Increasing Activeness and English Vocabulary Mastery through the Application of Three Phase Technique for Class X A3 MAN 3 Sleman, is Classroom Action Research. The purpose of this research is to apply the Three Phase Technique so that it can increase students’ activeness and English vocabulary mastery. This classroom action research was carried out in 2 cycles, each cycle consisting of 3 meetings. This research showed that the activeness of students from the initial conditions, cycle 1 and cycle 2 continued to increase. Percentage of the students’ English mastery who complete and exceed the KKM (from 37,94% to 82,76%). The indicator of the success of a minimum of this Classroom Action Research is, if the percentage of students whose learning scores have reached a minimum of 80%, then it has been successful. The conclusion of this Classroom Action Research is that students’ activeness and English Vocabulary Mastery have increased after learning is applied through the Three Phase Technique.
Approaches to the Application of Corporate Governance Regulations
Authors: Ekundayo Veronica Ngozi , Sodipo Bankole
Published: August 2022

To enhance good corporate governance practices, companies, as well as countries, have adopted and promulgated regulations and codes of best practices. To implement these regulations and practices, regulators adopt various approaches which can be broadly classified into voluntary, mandatory, and hybrid. This study examined the aforementioned approaches with particular attention to their strengths and weaknesses. The study employed a qualitative methodology using the doctrinal research method. The doctrinal method relied on primary and secondary sources. The primary sources included legislations and corporate governance codes while the secondary sources included books, e-books, journals, and articles. This methodology was deployed in appraising, interpreting, and applying these various sources of material used in the study. The study found that there are different variations and modifications to the approaches to the application of corporate governance regulations and practices. To facilitate a more efficient and effective corporate governance regime, a combination of the rule-based and principle-based approaches to the application of corporate governance is required.
The ALMA REBELS Survey: Average [C ii] 158 μm Sizes of Star-forming Galaxies from z ∼ 7 to z ∼ 4
Authors: Fudamoto Y. , Smit R. , Bowler R. A. A. , Oesch P. A. , Bouwens R. , Stefanon M. , Inami H. , Endsley R. , Gonzalez V. , Schouws S. , Stark D. , Algera H. S. B. , Aravena M. , Barrufet L. , da Cunha E. , Dayal P. , Ferrara A. , Graziani L. , Hodge J. A. , Hygate A. P. S. , Inoue A. K. , Nanayakkara T. , Pallottini A. , Pizzati E. , Schneider R. , Sommovigo L. , Sugahara Y. , Topping M. , van der Werf P. , Bethermin M. , Cassata P. , Dessauges-Zavadsky M. , Ibar E. , Faisst A. L. , Fujimoto S. , Ginolfi M. , Hathi N. , Jones G. C. , Pozzi F. , Schaerer D.
Published: August 2022

We present the average [C ii] 158 μm emission line sizes of UV-bright star-forming galaxies at z ∼ 7. Our results are derived from a stacking analysis of [C ii] 158 μm emission lines and dust continua observed by the Atacama Large Millimeter/submillimeter Array (ALMA), taking advantage of the large program Reionization Era Bright Emission Line Survey. We find that the average [C ii] emission at z ∼ 7 has an effective radius r

e
of 2.2 ± 0.2 kpc. It is ≳2× larger than the dust continuum and the rest-frame UV emission, in agreement with recently reported measurements for z ≲ 6 galaxies. Additionally, we compared the average [C ii] size with 4 < z < 6 galaxies observed by the ALMA Large Program to INvestigate [C ii] at Early times (ALPINE). By analyzing [C ii] sizes of 4 < z < 6 galaxies in two redshift bins, we find an average [C ii] size of r
e = 2.2 ± 0.2 kpc and r
e = 2.5 ± 0.2 kpc for z ∼ 5.5 and z ∼ 4.5 galaxies, respectively. These measurements show that star-forming galaxies, on average, show no evolution in the size of the [C ii] 158 μm emitting regions at redshift between z ∼ 7 and z ∼ 4. This finding suggests that the star-forming galaxies could be morphologically dominated by gas over a wide redshift range.
Direct Measurement of AIA 171 Coronal Loop Transparency
Authors: li Hongbo , Feng Hengqiang , Tian Zhanjun , Zhang Xuefei , Liu Jihong , Zhao Guoqing , Zhao Yan , Cai Hao , Liang Yuanxi , Guo Runze
Published: August 2022

Observations suggest that coronal loops should not be completely transparent. The transparency of coronal loops is rarely investigated in spite of its key role in coronal diagnostics. Here, we present an original investigation of Atmospheric Imaging Assembly 171 coronal loop transparency directly from the radiation of visually intersecting coronal loops, which strongly indicates that the coronal loops may have significant opaqueness on the 171 Å radiation, and therefore should not be optical thin structures at least for some coronal lines. We suggest that this result may not only be helpful for explaining some basic observational features of coronal loops, but also in bringing new clues to the radiation-based diagnostics.
A Search of TESS Full-frame Images for an Optical Counterpart of the Repeating FRB 20180916B
Authors: Tingay Steven J.
Published: August 2022

Recently, an association between an optical transient, AT2020hur, and a repeating fast radio burst, FRB 20180916b, has been suggested, based on a strong positional coincidence on the sky and the temporal coincidence with one of the fast radio burst’s activity periods (∼6 days duration every ∼16 days). This suggestion is explored further and tested in this paper, utilizing full-frame images from the Transiting Exoplanet Survey Satellite (TESS) across three of its observing periods in 2019 and 2020 (Sectors 18, 24, and 25). The discovery observations of AT2020hur took place between Sectors 18 and 24, within 5 days of the commencement of Sector 24 observations. The TESS observations cover at least six activity periods for the FRB. Thus, the TESS data provide excellent temporal coverage close in time to the discovery of AT2020hur and at known times of FRB activity and radio detection. From the TESS data, no evidence is found for repeating optical transients with the suspected emission timescale of ⪆1000 s.
Length–weight relation for seven Neotropical freshwater fish species (Actinopterygii) endemic to Central America
Authors: Bagley Justin C. , Breitman Maria Florencia , Johnson Jerald B.
Published: August 2022

In the presently reported study, we estimated length–weight relation (LWRs) for seven species of freshwater fishes from Central America. Samples were collected using seines from 60 sites across Nicaragua, Costa Rica, and Panama during field expeditions conducted between 1997 and 2012. The fishes were preserved and transported to the lab, where their total weight (W) was measured (to nearest 0.0001 g) and standard lengths were taken (to nearest 0.01 mm). Data were collected from four livebearers (Poeciliidae), Alfaro cultratus (Regan, 1908), Phallichthys amates (Miller, 1907), Poecilia gillii (Kner, 1863), and Priapichthys annectens (Regan, 1907); the cichlids (Cichlidae), Parachromis dovii (Günther, 1864) and Parachromis managuensis (Günther, 1867); and a silverside (Atherinopsidae), Atherinella hubbsi (Bussing, 1979). Estimates of parameter b ranged from 2.936 (A. hubbsi) to 3.696 (P. gillii), while estimates of parameter a ranged from 1.7 × 10−6 (P. gillii) to 1.9 × 10−5 (P. managuensis). Parameter b estimates were greater than three, consistent with allometric growth, with the exception of P. annectens, P. managuensis, and A. hubbsi, for which t-tests failed to reject the null hypothesis of isometric growth. Our results provide the first LWR information for five (71%) of these species and may prove useful for data imputation or estimating the biomass of poeciliid, cichlid, and atheriniform fishes in Central American rivers in the future.
Zen and the Art of Persistent Identifier Service Development for Digital Specimen
Authors: Islam Sharif , Theocharides Soulaine , Addink Wouter
Published: August 2022

One of the most desired (and still missing) elements to enable the concept of Digital Extended (Webster et al. 2021) Specimens is a persistent identifier (PID) for the new digital specimen object. Digital Specimens are created to act as a digital surrogate of the physical objects. Digital Specimens contain all data relevant to the specimens as well as derived data like genetic sequences, trait information, and references to publications, species and environmental information. A PID for the Digital Specimen is thus essential to link it to the extended information. Furthermore, the extended information also needs PIDs to create unique and resolvable references to enable bidirectional linking.

DiSSCo, Distributed System of Scientific Collections, has done extensive work to select the most appropriate PID scheme (Hardisty et al. 2021) and design a PID infrastructure for the pan-European specimen collections. The design was created in the Biodiversity Community Integrated Knowledge Library project (BiCIKL) with funding from the European Commission. The draft design has been discussed with technical specialists in the joint DiSSCo and Consortium of European Taxonomic Facilities (CETAF) community, with international stakeholders like GBIF and iDigBio. The draft was also presented at the 2022 conference of SPNHC (the Society for the Preservation of Natural History Collections) for further feedback, after which it was finalised.

This talk will provide a short overview of the key elements in the design of the Persistent Identifier system for Digital Specimens such as the metadata schema, a human friendly string format, and PID lifecycle with support for state changes of the physical object such as splitting and merging. We will illustrate this by showing the current status of development.

The Digital Specimen forms the backbone of the FAIR (Findable, Accessible, Interoperable, Reusable) services (Addink et al. 2021) in development by the DiSSCo Prepare project, a project to prepare for the new research infrastructure which currently involves 170 institutions in 23 countries holding an estimated 1,5 billion specimens. The Digital Specimen is a FAIR Digital Object with a PID and machine actionable metadata to make it FAIR. The PID service ensures the identifiers’ integrity and preserves these linkages, improving the FAIR quality of all specimen data. The talk will describe the system design and current test deployment setup, as well as delve into a few technical details of the Handle Server architecture, PID Kernel records, and a roadmap for the service development. The design and test work are done under the auspices of the BiCIKL project that aims to foster collaboration between infrastructures and develop bidirectional connections between the data so that they become part of a big FAIR data pool seamlessly available to researchers (Penev et al. 2022).
Chimeric Antigen Receptor-T Cell Therapy
Authors: Byun Ja Min , Yoon Sung-Soo
Published: August 2022

Chimeric antigen receptor (CAR) T-cell therapy constitutes a revolutionary advancement in personalized cancer treatment. During this treatment, a patient's own T cells are genetically engineered to express a synthetic receptor that binds a tumor antigen. CAR-T cells are then expanded for clinical use and infused back into the patient's body to attack cancer. CAR-T cells have produced remarkable clinical responses with B-cell malignancies. However, CAR-T cells therapy is not without problems. Barriers to effective CAR-T cells therapy include severe life-threatening toxicities and modest anti-tumor activity. In this review, we introduce the concept of CAR-T cells therapy, currently available CAR-T cells therapy options, and how to deal with adverse events.
Diagnosis and Management of Comorbidities Associated with Bronchiectasis
Authors: Choi Hayoung , Lee Hyun
Published: August 2022

Patients with non-cystic fibrosis bronchiectasis (hereafter referred to as bronchiectasis) often present with comorbidities. These comorbidities significantly impact symptoms, acute exacerbation, hospitalization, disease progression, and mortality in patients with bronchiectasis. Thus, accurate diagnosis and management of comorbidities associated with bronchiectasis are essential to reduce the disease burden of bronchiectasis. This review provides a state-of-the-art summary of key pulmonary and extra-pulmonary comorbidities associated with bronchiectasis, outlines clinical tools to quantify the prognosis of bronchiectasis, and suggests a workflow to diagnose and manage comorbidities associated with bronchiectasis.
Diagnosis of Small Intestinal Bacterial Overgrowth
Authors: Lee Tae Hee
Published: August 2022

Small intestinal bacterial overgrowth (SIBO) occurs when the small bowel is colonized by high numbers of abnormal microorganisms. There is no gold standard diagnostic test for SIBO. Both small bowel aspiration and breath testing have limitations as diagnostic tests. However, breath testing has the practical advantages of being readily available, inexpensive, and noninvasive.
Le discernement et la modération comme marques du progrès en 2100 ?
Authors: Aubert Jean-Éric
Published: August 2022

Personne n’avait vu venir la pandémie de Covid-19. Cela ne veut pas dire que le risque d’un virus mortel attaquant la planète n’avait pas été identifié par les prospectivistes. Telle est la difficulté de cette fonction : prévoir l’avenir, mais sans pouvoir dater exactement les évènements que l’on anticipe. Que sera devenue la notion de progrès en 2100 ? La planète se sera-t-elle effondrée ou se sera-t-elle livrée aux transhumanistes ? Probablement ni l’un ni l’autre, mais on peut prédire sans grand risque de se tromper que le discernement et la modération devront faire partie du paysage pour affronter les changements climatiques et sociétaux qui s’annoncent.
« Le temps de vivre ne manquera plus ». Guy Debord : la politique et le temps
Authors: Cochard Bertrand
Published: August 2022

Dès ses premières lettres à Hervé Falcou en 1950, et jusqu’à ses dernières œuvres, Guy Debord a attaché à la question et à l’expérience du temps une attention toute particulière. Au point d’y consacrer deux chapitres (chapitre v « Temps et histoire » ; chapitre  vi « Le temps spectaculaire »), et de les placer au centre de son principal ouvrage théorique : La Société du spectacle . Cet article propose une relecture du concept de spectacle à partir du prisme du temps, en distinguant le Spectacle (processus historique de séparation croissante des groupes sociaux d’avec l’histoire), le spectacle (dernière figure de ce processus) et les spectacles (dispositifs idéologiques destinés à justifier l’aliénation dans le temps). L’enjeu de cet article est de montrer qu’en conjuguant le matérialisme de Marx à l’idéalisme de Hegel, Guy Debord a construit une théorie du temps qui résonne de manière particulièrement forte dans l’époque contemporaine.
Impact of earthing up on groundnut (Arachis hypogaea L.) pod yield and its components
Authors: Desmae Haile , Sako Dramane , Konate Djeneba
Published: August 2022

Groundnut is an important crop grown by smallholder farmers in West Africa for both domestic and market consumption. In groundnut cultivation, earthing up, or covering the plant's base and lower nodes with soil, is a common practice. However, there is no consistent evidence about its economic benefit. From 2016 to 2018, a three-year experiment was conducted to assess the benefits of earthing up and establish the best time to do so to increase groundnut yield, thus filling a knowledge gap in the region. The experiment was set up in a split-plot design, with the planting arrangement as the main plot (ridge vs flatbed planting) and the timing of earthing up as the subplot. The earthing up timing was divided into ten treatments, ranging from no earthing up (control) to earthing up at 70 days after planting. Data was collected on the number of matured pods per plant, dry pod yield, dry haulm yield, shelling percentage, and 100 seeds weight. The results for the time of earthing up revealed that there was no statistically significant difference in dry pod yield and dry haulm yield except in 2017. Similarly, for the number of matured pods per plant, 100 seeds weight, and shelling percentage, there was no statistically significant difference between times of earthing up except for 100 seeds weight in 2018 and shelling percentage in 2017 and 2018. The individual years and combined analyses across years revealed no statistically significant difference between the main plots for all the five traits. The combined analysis for the times of earthing up showed a significant difference only for shelling percentage. Therefore, in the Sudan Savanah agro-climatic conditions of the semi-arid tropics of West Africa, earthing up may not be economically beneficial during a typical rainfall season with appropriate planting time. Instead, it could raise production costs, reducing the profit.
Experimental study of the performance of hemispherical solar still with optimum value of rocks as heat transfer enhancers
Authors: Al-wahid Wisam A. Abd , Saad Hussein Awad Kurdi , Hasan Zahraa Hamzah , Sopian Kamaruzzaman
Published: August 2022

Transformation of salty seawater into fresh water by the aid of solar energy is one of the solutions for overcoming the lack of these waters with an eco-friendly procedure. The use of solar stills is one of the solutions that use solar energy with a simple design to produce fresh water in small to moderate amounts. Hemispherical solar stills are one kind of still design that does not require a particle rotational orientation, and they have proved to be more efficient than traditional designs. Solar stills generally possess a low thermal efficiency, with limitations of working hours, i.e., only daytime. To overcome these problems, rocks placed in the saline water basin are used as heat storage materials to increase the working period of the design. In the present work, different amounts of river rocks are utilized to study the effect of this addition experimentally. Steady state tests are conducted to study the influence of these additive rocks on the enhancement of solar energy absorption, since increased working time is assured by published research. Two volumes of rocks (300 mL and 600 mL) were tested, and both increased water productivity, by 52% and 58%, respectively. The increases are explained by the increases in solar energy absorption, since steady state cases were used.
Numerical analysis of a fourth-order linearized difference method for nonlinear time-space fractional Ginzburg-Landau equation
Authors: Fei Mingfa , Li Wenhao , Yi Yulian
Published: August 2022

An efficient difference method is constructed for solving one-dimensional nonlinear time-space fractional Ginzburg-Landau equation. The discrete method is developed by adopting the $ L2 $-$ 1_{\sigma} $ scheme to handle Caputo fractional derivative, while a fourth-order difference method is invoked for space discretization. The well-posedness and a priori bound of the numerical solution are rigorously studied, and we prove that the difference scheme is unconditionally convergent in pointwise sense with the rate of $ O(\tau^2+h^4) $, where $ \tau $ and $ h $ are the time and space steps respectively. In addition, the proposed method is extended to solve two-dimensional problem, and corresponding theoretical analysis is established. Several numerical tests are also provided to validate our theoretical analysis.
Impact of polymer molecular weights and graphene nanosheets on fabricated PVA-PEG/GO nanocomposites: Morphology, sorption behavior and shielding application
Authors: Ghazi Rusul A. , Al-Mayalee Khalidah H. , Al-Bermany Ehssan , Hashim Fouad Sh. , Albermany Abdul Kareem J.
Published: August 2022

Molecular weight (Mw) is an important feature that affects the physicochemical properties of polymers and their matrices. This study focused on the impact of increasing the Mw of polyethylene glycol (PEG) (4, 8 and 20 K) mixed with polyvinyl alcohol (PVA). Graphene oxide (GO) nanosheets were employed to reinforce the polymer matrix by aquatic mixing-sonication-casting to prepare the nanocomposites and investigate their optical properties. Fourier transform infrared spectroscopy revealed strong interfacial interactions among the components and successful fabrication of the nanocomposites. Optical microscopy and scanning electron microscopy confirmed the fine homogeneity of the polymers and the excellent dispersion of nanosheets in the matrix. The absorption peak was located in the ultraviolet region related to GO. PEG Mw and GO additive significantly improved optical properties such as absorbance, real and imaginary dielectrics and the absorption coefficient constant up to 75%, 40%, 120% and 77%, respectively. An enhancement in the optical properties was also observed after the energy gap values for allowed and forbidden transitions were improved up to 90% and 375%, respectively. These findings suggest the potential of these materials for several applications, such as in photovoltaic devices and heavy metal ion absorption for nuclear waste management.
Analytic technique for solving temporal time-fractional gas dynamics equations with Caputo fractional derivative
Authors: Alaroud Mohammad , Ababneh Osama , Tahat Nedal , Al-Omari Shrideh
Published: August 2022

Constructing mathematical models of fractional order for real-world problems and developing numeric-analytic solutions are extremely significant subjects in diverse fields of physics, applied mathematics and engineering problems. In this work, a novel analytical treatment technique called the Laplace residual power series (LRPS) technique is performed to produce approximate solutions for a non-linear time-fractional gas dynamics equation (FGDE) in a multiple fractional power series (MFPS) formula. The LRPS technique is a coupling of the RPS approach with the Laplace transform operator. The implementation of the proposed technique to handle time-FGDE models is introduced in detail. The MFPS solution for the target model is produced by solving it in the Laplace space by utilizing the limit concept with fewer computations and more accuracy. The applicability and performance of the technique have been validated via testing three attractive initial value problems for non-linear FGDEs. The impact of the fractional order β on the behavior of the MFPS approximate solutions is numerically and graphically described. The jth MFPS approximate solutions were found to be in full harmony with the exact solutions. The solutions obtained by the LRPS technique indicate and emphasize that the technique is easy to perform with computational efficiency for different kinds of time-fractional models in physical phenomena.
The existence of entire solutions of some systems of the Fermat type differential-difference equations
Authors: Jiang Yeyang , Liao Zhihua , Qiu Di
Published: August 2022

In this paper, we investigate some systems of the Fermat type differential-difference equations with polynomial coefficients and obtain the condition for the existence of finite order transcendental entire solutions and the expression for the entire solutions. We also give some corresponding examples.
Enabling secure mutual authentication and storage checking in cloud-assisted IoT
Authors: Liu Dengzhi , Li Zhimin , Wang Chen , Ren Yongjun
Published: August 2022

Internet of things (IoT) is a technology that can collect the data sensed by the devices for the further real-time services. Using the technique of cloud computing to assist IoT devices in data storing can eliminate the disadvantage of the constrained local storage and computing capability. However, the complex network environment makes cloud servers vulnerable to attacks, and adversaries pretend to be legal IoT clients trying to access the cloud server. Hence, it is necessary to provide a mechanism of mutual authentication for the cloud system to enhance the storage security. In this paper, a secure mutual authentication is proposed for cloud-assisted IoT. Note that the technique of chameleon hash signature is used to construct the authentication. Moreover, the proposed scheme can provide storage checking with the assist of a fully-trusted entity, which highly improves the checking fairness and efficiency. Security analysis proves that the proposed scheme in this paper is correct. Performance analysis demonstrates that the proposed scheme can be performed with high efficiency.
DeTER Framework
Authors: Rangarajan (Ray) Parthasarathy  , Wyant David K. , Bingi Prasad , Knight James R. , Rangarajan Anuradha
Published: August 2022

The use of health apps on mobile devices by healthcare providers and receivers (patients) is proliferating. This has elevated cybersecurity concerns owing to the transmittal of personal health information through the apps. Research literature has mostly focused on the technology aspects of cybersecurity in mobile healthcare. It is equally important to focus on the ethical and regulatory perspectives. This article discusses cybersecurity concerns in mobile healthcare from the ethical perspective, the regulatory/compliance perspective, and the technology perspective. The authors present a comprehensive framework (DeTER) that integrates all three perspectives through which cybersecurity concerns in mobile healthcare could be viewed, understood, and acted upon. Guidance is provided with respect to leveraging the framework in the decision-making process that occurs during the system development life cycle (SDLC). Finally, the authors discuss a case applying the framework to a situation involving the development of a contact tracing mobile health app for pandemics such as COVID-19.
Subversion of the Dominant Logic of Heteronormativity in Akwaeke Emezi's The Death of Vivek Oji
Authors: Priyadharshan P. Guhan
Published: August 2022

Akwaeke Emezi's 2020 novel The Death of Vivek Oji narrates the death of the eponymous non-heterosexual character—as suggested by the title—and the emotional turmoil faced by people with non-heterosexual orientation. This chapter demonstrates how his death is the product of dominant logic—the prudishness of the Igbo society, which manifests heteronormative practices, and the legal system in Nigeria that castigate persons who diverge from normative sexual behaviour. Further, it examines the narration in the novel that subverts the heteronormativity perpetuated by the state and society, opening new avenues of resistance for non-heterosexual people in Nigeria that might otherwise be obscured in the narrative. The chapter considers the location of the experiences of the non-heterosexual characters in the novel in liminality so that the contradiction between the lived experience and the conformity articulated by the state and the society is apparent, which prepares the ground for resistance to occur.