bluuebunny/crossref_metadata_2025 huggingface dataset:
An Integrated Two-Factor Authentication Scheme for Smart Communications and Control Systems
Authors: Hoang Trong-Minh , Bui Van-Hau , Nguyen Nam-Hoang
Published: December 2023

Fast and reliable authentication is a crucial requirement of communications networks and has various research challenges in an Internet of Things (IoT) environment. In IoT-based applications, as fast and user-friendly access and high security are required simultaneously, biometric identification of the user, such as the face, iris, or fingerprint, is broadly employed as an authentication approach. Moreover, a so-called multi-factor authentication that combines user identification with other identification information, including token information and device identity, is usedto enhance the authentication security level. This paper proposes a novel twofactor authentication scheme for intelligent communication and control systems by utilizing the watermarking technique to incorporate the mobile device authentication component into the user’s facial recognition image. Our proposed scheme offers user-friendliness while improving user security and privacy and reducing authentication information exchange procedures to provide a secure and lightweight schema in real applications. The proposed scheme’s security advantages are validated using the widely accepted Burrows–Abadi–Needham (BAN) logic and experimentally assessed using the Automated Validation of Internet Security Protocols and Applications (AVISPA) simulator tool. Finally, our experimental results show that the proposed authentication scheme is an innovative solution for a smarthome control system, such as a smart lock door operation.
Stock and Structured Warrant Portfolio Optimization Using Black-Litterman Model and Binomial Method
Authors: Jayadi Cornelius Francis , Sumarti Novriana
Published: December 2023

In recent years, the number of Indonesian investors has rapidly increased during the COVID-19 pandemic which happened all around the world. There have been a massive number of influencers in social media who were promoting investment. Although stocks and warrants are interesting choices, mutual funds still become the main ones for beginners. Therefore, this research focuses on the development of a stock portfolio model using the Black-Litterman method which involves the investor’s views towards the stock returns. The research refers to one of the largest equity funds in Indonesia, that is Sucorinvest Equity Fund, by using the top ten of its stocks that are majority in the fund (as of April 28, 2023). Furthermore, this research also constructs a structured warrant portfolio, but it is separated from the initially constructed stock portfolio. Structured warrants could be an appropriate choice for low-budget investors. It was newly introduced in Indonesia in September 2022 so it is interesting to be observed. Based on the results and the implemented assumptions, the return obtained from the stock portfolio is superior to the observed fund’s return. Meanwhile, call structured warrant portfolio using the existing product in the market yields a negative return, because the exercise price and warrant offered price were too high. Thus, structured warrants could be considered overpriced at the moment, so the chance of obtaining profit is extremely small. Due to its similar properties to call and put options, we propose the warrant pricing and use it in simulations, so in the future, structured warrants may become an attractive instrument for the investors.
Initial Coin Offering Prediction Comparison Using Ridge Regression, Artificial Neural Network, Random Forest Regression, and Hybrid ANN-Ridge
Authors: Tran Toai Kim , Senkerik Roman , Vo Hahn Thi Xuan , Vo Huan Minh , Ulrich Adam , Musil Marek , Zelinka Ivan
Published: December 2023

Can machine learning take a prediction to win an investment in ICO (Initial Coin Offering)? In this research work, our objective is to answer this question. Four popular and lower computational demanding approaches including Ridge regression (RR), Artificial neural network (ANN), Random forest regression (RFR), and a hybrid ANN-Ridge regression are compared in terms of accuracy metrics to predict ICO value after six months. We use a dataset collected from 109 ICOs that were obtained from the cryptocurrency websites after data preprocessing. The dataset consists of 12 fields covering the main factors that affect the value of an ICO. One-hot encoding technique is applied to convert the alphanumeric form into a binary format to perform better predictions; thus, the dataset has been expanded to 128 columns and 109 rows. Input data (variables) and ICO value are non-linear dependent. The Artificial neural network algorithm offers a bio-inspired mathematical model to solve the complex non-linear relationship between input variables and ICO value. The linear regression model has problems with overfitting and multicollinearity that make the ICO prediction inaccurate. On the contrary, the Ridge regression algorithm overcomes the correlation problem that independent variables are highly correlated to the output value when dealing with ICO data. Random forest regression does avoid overfitting by growing a large decision tree to minimize the prediction error. Hybrid ANN-Ridge regression leverages the strengths of both algorithms to improve prediction accuracy. By combining ANN’s ability to capture complex non-linear relationships with the regularization capabilities of Ridge regression, the hybrid can potentially provide better predictive performance compared to using either algorithm individually. After the training process with the cross-validation technique and the parameter fitting process, we obtained several models but selected three of the best in each algorithm based on metrics of RMSE (Root Mean Square Error), R2 (R-squared), and MAE (Mean Absolute Error). The validation results show that the presented Ridge regression approach has an accuracy of at most 99% of the actual value. The Artificial neural network predicts the ICO value with an accuracy of up to 98% of the actual value after six months. Additionally, the Random forest regression and the hybrid ANN-Ridge regression improve the predictive accuracy to 98% actual value.
Haunted Flesh and Chaos Theory: Gender, State Violence and the Afterlife of Slave Rebellions
Authors: Finch Aisha
Published: December 2023

Abstract: This article explores the gendered afterlife of slave rebellions, building on historical and sociological scholarship that takes death and haunting as central analytics. It focuses on a moment of state repression in Cuba in 1844, in the aftermath of two substantive slave insurgencies, and the movement of enslaved and free people of color known as La Escalera. While a voluminous colonial record has documented the spectacle of public punishment in 1844, I trace an invisible, largely unarchived form of punishment that haunted Black people who were forced to witness acts of torture and execution, stalking their psychic worlds. Alongside the masculinization of this public punishment, this article explores a phenomenon that I call encumberment, which encompasses the absorption of state terror on the most intimate of levels; the act of contending and coping with torture's impact on wider communities; and the labor of rebuilding and caring for traumatized loved ones—all of which were deeply gendered processes. Yet if haunting was a central feature of moments like 1844, these moments were also characterized by a counter-haunting, illustrating how the aftermath of slave insurgencies also stalked and plagued the colonial state, and disrupted the fantasy of the rebellion's undoing. Encompassing the memory of collective Black rage, the colonial pursuit of public tranquility, the care for traumatized Black bodies and the attention to the dead, counter-haunting became central to the afterlife of 1844. The deep entanglement of haunting and counterlife was a critical legacy of this and other slave rebellions.
Modern Wendat Lexicography: Using XML to Reflect the Grammar and Lexicon of an Iroquoian Language
Authors: Lukaniec Megan , Holmes Martin
Published: December 2023

ABSTRACT: Building dictionaries with tools and methods emerging from Eurocentric traditions has proved problematic for Indigenous languages. We are building a dictionary for Wendat, an Iroquoian language formerly known as Huron that is being reawakened in Wendake, Québec. There are twelve manuscript dictionaries and lexicons for Wendat, created by missionaries during the seventeenth and eighteenth centuries. We are encoding the manuscripts using a standard Text Encoding Initiative (TEI) schema. However, when we came to create and encode a modern reconstructed Wendat dictionary, we were overly constrained by Eurocentric structures and assumptions inherent to TEI. Building our own custom XML schema allows us to better reflect Wendat grammar, responding to community needs and our evolving understandings of the language. This article describes the development of this schema, based on analysis of the archival documentation and related languages. Through this discussion, we will exemplify the schema we built and address the points of friction between TEI and Wendat grammatical structures. Our custom schema enables us to elegantly and economically represent exactly what our analysis of the language reveals, capturing elements of the language such as event-verb consequentiality, conjugation class, and stems, while avoiding incompatible elements and assumptions.
Designing Corpus-Creation Tools for Language Revitalization
Authors: Flavelle Darren , Lachler Jordan
Published: December 2023

ABSTRACT: We have developed a set of corpus-creation tools to support the documentation and revitalization of Isga I?abi (also known as Stoney ), a Siouan language spoken in Alberta. This project has emerged from a collaboration between community language champions and university-based researchers, with the goal of creating a new generation of Stoney speakers. The initial phase of the project has focused on expanding the documentary record of the language by creating a corpus of spoken Isga I?abi, recorded from nearly a dozen fluent speakers. We describe the particular constraints that informed the design of the project and how they led us to create several new tools for elicitation. First was an adaptation of the Summer Institute of Linguistics' Rapid Words Collection method, where, instead of focusing on individual lexemes, we collected thematically organized sentences displaying targeted grammatical properties. Next, we developed a photo prompter tool, which allows speakers to describe what they see in a photo, but also to discuss the photo with other speakers in spontaneous discourse. These simple tools allow the speakers to handle the day-to-day work of language documentation themselves, without needing a linguist to be present during those sessions. The outputs from this process (currently over fifty hours of audio) will find their way into various resources and activities for language teachers and learners. Insights from the Isga I?abi speakers themselves reflect on their use of the tools and their perspectives on the project to date.
Thematic Picture Dictionaries and Other Visual Resources for Costa Rican Indigenous Languages: Beyond Bilingual Equivalencies
Authors: Avendaño Carlos Sánchez , Angulo-Jiménez Henry
Published: December 2023

ABSTRACT: Picture dictionaries are thematically organized resources for the presentation of (especially referential) word meaning, mainly—and sometimes solely—through visual strategies such as illustrations, images, arrows, and colors. This article contrasts the bilingual alphabetical tradition with a monolingual visuo-thematic approach to the creation of lexicographic resources for Costa Rican Indigenous languages. It then illustrates the latter approach with the description of the process followed to create picture dictionaries and other visual resources for these languages in two projects of the University of Costa Rica: Linguistic Diversity and Patrimony of Costa Rica and Languages and Oral Traditions of Costa Rica (https://www.dipalicori.ucr.ac.cr). The resources produced in these projects correspond to the frame of collaborative dictionary-making as explained by Anderson (2020). The paper highlights the need to resist the perceived tendency to default to bilingual, alphabetically organized dictionaries to document minority languages. Instead, it invites readers to reconsider possible misconceptions regarding the complementary role of pictures in lexicographic products and encourages lexicographers and other stakeholders to consider monolingual visuo-thematic options for documenting, safeguarding cultural-linguistic knowledge, and supporting education and revitalization of under-resourced and endangered Indigenous languages.
Nagorno-Karabakh Conflict: What's Next?
Authors: Saparov Arsène
Published: December 2023

SUMMARY: The essay puts the recent culmination of the decades-long territorial dispute over Nagorno-Karabakh into a longer historical perspective including the post–World War II period. The available sources suggest that the conflict was framed not least by the Soviet administrative borders that contradicted the existing spatially arranged economic patterns as well as by the forced resettlements during late Stalinism. Eventually, the dispute acquired its current function of national identity-shaping and mobilization. The fact that the 1915 Armenian genocide has never been properly prosecuted or even admitted to by the Republic of Turkey and its close ally, independent Azerbaijan, has greatly contributed to the conflict's escalation. In Azerbaijan, the trauma of the defeat in the First Karabakh War in the early 1990s also made the eventual revanche in the form of retaking Nagorno-Karabakh as the ultimate political and cultural priority. Резюме: Эссе помещает многолетний территориальный спор вокруг Нагорного Карабаха, который недавно достиг своей кульминации, в долгосрочную историческую перспективу, уделяя особое внимание периоду после Второй мировой войны. Как свидетельствуют привлекаемые автором источники, несоответствие советских административных границ сложившейся пространственной организации экономической деятельности во многом способствовало эскалации конфликта. Немалую роль сыграло и насильственное перемещение населения региона позднесталинского периода. В итоге противостояние в Карабахе превратилось в источник формирования национальной идентичности и фактор национальной мобилизации. Отказ Турецкой Республики и ее близкого союзника – независимого Азербайджана – от признания и объективного расследования геноцида армян 1915 года также во многом способствовал эскалации конфликта. Кроме того, травма от поражения Азербайджана в Первой карабахской войне начала 1990-х гг. сделала реванш в форме возвращения Нагорного Карабаха главным политическим и культурным приоритетом политики этого государства.
“I Have Proved Both Perm and Assoc by Help of the Other Three”: Nicod to Russell 19 September 1923
Authors: Landini Gregory
Published: December 2023

Abstract: In anticipation of Russell’s new introduction to his 1925 second edition of Principia Mathematica , Jean Nicod wrote a letter which is reproduced in Russell’s Autobiography . In the letter, Nicod wrote: “Since you are re-publishing Principia , I may remind you that I have proved both Permutation and Association by help of the other three primitive props (Tautology, Addition, and the syllogistic prop.), where I only changed the order of some letters. It is in the Memoir I wrote for the b.a. degree. I have entirely forgotten how it is done.” In this paper, I surmise what Nicod had in mind.
Propagation of intense catastrophe beams in air
Authors: Wang Chunya , Ouyang Min , Hong Weiyi
Published: December 2023

This study uses numerical simulations to investigate the propagation of intense catastrophe beams in air. Our focus was on beams with high intensity below 1×1014W/cm2, which can cause the ionization of neutral atoms in air and create plasma paths. Due to the interaction between the Kerr effect, the self-focusing property of the catastrophe beam, and the defocusing caused by plasma, the propagation dynamics of the beam become very complicated. We analyzed three types of catastrophe beams with inward or outward main rings: ring Airy, ring Pearcey, and ring swallowtail. Additionally, our study also examined how these three self-focusing beams carrying orbital angular momentum behave in a plasma medium.
Historical archives reveal record rainfall and severe flooding in December 1867 resulting from an atmospheric river and snowmelt, western Washington, USA
Authors: Gavin Daniel G. , Bartlein Patrick J. , Mock Cary J.
Published: December 2023

The flooding of 1861-1862 in California and Oregon is the most severe flood event documented in the far western USA and stands as a benchmark for a worst-case atmospheric-river flooding event. In western Washington, historical data are sparser, and 19th-century flood events have consequently not been well documented. We found that rainfall observations from five locations spanning western Washington had no detectable bias when compared to nearby 20th and 21st-century comparator stations. Time series of the four-day precipitation sum revealed an event in December 1867 that was greater than any of the last century at three locations, and in the top two events at the other two locations. Summing over all locations, the regional three-day or four-day peak precipitation in 1867 exceeded the 150-yr recurrence magnitude by nearly 150 mm, indicative of non-stationarity of precipitation extremes. Newspapers and historical accounts document flood damage to settlements, farms, and bridges from the Columbia River to central Puget Sound. Reported high water levels at two locations indicate floodplains under more than a meter of water. Reanalysis data (20CRv3) is poorly spatially constrained in 1867, and underestimates the magnitude of this event, but it clearly shows the atmospheric-river cause of the event and supports snowmelt as a significant contributor to flooding. Compared to the most recent extensive flooding in 1996, the 1867 floods were likely of a similar extent but centered further north, and with notably more precipitation and enhanced by snowmelt. The 1867 rainfall amounts were also greater than those produced by the 2006 atmospheric river, though flooding in 2006 was not enhanced by snowmelt and record stream discharges were limited to mountain catchments. The combined rainfall and flood evidence from 1867 shows the potential for events more extreme than have occurred in recent history in the major urban corridors of western Washington.
Molecular traces of Drosophila hemocytes reveal transcriptomic conservation with vertebrate myeloid cells
Authors: Yoon Sang-Ho , Cho Bumsik , Lee Daewon , Kim Hanji , Shim Jiwon , Nam Jin-Wu
Published: December 2023

Drosophilahemocytes serve as the primary defense system against harmful threats, allowing the animals to thrive. Hemocytes are often compared to vertebrate innate immune system cells due to the observed functional similarities between the two. However, the similarities have primarily been established based on a limited number of genes and their functional homologies. Thus, a systematic analysis using transcriptomic data could offer novel insights intoDrosophilahemocyte function and provide new perspectives on the evolution of the immune system. Here, we performed cross-species comparative analyses using single-cell RNA sequencing data fromDrosophilaand vertebrate immune cells. We found several conserved markers for the cluster of differentiation (CD) genes inDrosophilahemocytes and validated the role ofCG8501(CD59) in phagocytosis by plasmatocytes, which function much like macrophages in vertebrates. By comparing whole transcriptome profiles in both supervised and unsupervised analyses, we showed thatDrosophilahemocytes are largely homologous to vertebrate myeloid cells, especially plasmatocytes to monocytes/macrophages and prohemocyte 1 (PH1) to hematopoietic stem cells. Furthermore, a small subset of prohemocytes with hematopoietic potential displayed homology with hematopoietic progenitor populations in vertebrates. Overall, our results provide a deeper understanding of molecular conservation in theDrosophilaimmune system.
The stone-to-metal transition reflected in the Iron Age copper production sites of Timna Valley, Israel
Authors: Shimelmitz Ron , Ben-Yosef Erez
Published: December 2023

Metalwork was a major technological innovation that displaced stone-tool technologies and transformed human society and the environment. However, our understanding of these processes remains partial. In this paper, we approach the stone-to-metal transition from a novel angle–the presence of flint knapping at metal production sites. Drawing on excavations at the Late Bronze and Iron Age copper smelting sites in Timna Valley, Israel, we demonstrate that systematic production of expedient stone tools was integral to these sites’ industrial operations, placing it at the heart of the very same metal circulation networks that were presumably responsible for its displacement. The observations from Timna, coupled with evidence for the use of chipped stone technology in other early Iron Age metallurgical contexts, support the hypothesis that it was probablyboththe high accessibility of iron and its qualities that put an end to the stone tool industry. Copper and bronze could not easily fulfill the function of thead hocstone tools and were not used to replace stone tools even if they were available and accessible.
Initiations of safer supply hydromorphone increased during the COVID-19 pandemic in Ontario: An interrupted time series analysis
Authors: Young Samantha , Gomes Tara , Kolla Gillian , McCormack Daniel , Dodd Zoë , Raboud Janet , Bayoumi Ahmed M.
Published: December 2023

Aims

Calls to prescribe safer supply hydromorphone (SSHM) as an alternative to the toxic drug supply increased during the COVID-19 pandemic but it is unknown whether prescribing behaviour was altered. We aimed to evaluate how the number of new SSHM dispensations changed during the pandemic in Ontario.

Methods

We conducted a retrospective interrupted time-series analysis using provincial administrative databases. We counted new SSHM dispensations in successive 28-day periods from March 22, 2016 to August 30, 2021. We used segmented Poisson regression methods to test for both a change in level and trend of new dispensations before and after March 17, 2020, the date Ontario’s pandemic-related emergency was declared. We adjusted the models to account for seasonality and assessed for over-dispersion and residual autocorrelation. We used counterfactual analysis methods to estimate the number of new dispensations attributable to the pandemic.

Results

We identified 1489 new SSHM dispensations during the study period (434 [mean of 8 per 28-day period] before and 1055 [mean of 56 per 28-day period] during the pandemic). Median age of individuals initiating SSHM was 40 (interquartile interval 33–48) with 61.7% (N = 919) male sex. Before the pandemic, there was a small trend of increased prescribing (incidence rate ratio [IRR] per period 1.002; 95% confidence interval [95CI] 1.001–1.002; p<0.001), with a change in level (immediate increase) at the pandemic date (relative increase in IRR 1.674; 95CI 1.206–2.322; p = 0.002). The trend during the pandemic was not statistically significant (relative increase in IRR 1.000; 95CI 1.000–1.001; p = 0.251). We estimated 511 (95CI 327–695) new dispensations would not have occurred without the pandemic.

Conclusion

The pandemic led to an abrupt increase in SSHM prescribing in Ontario, although the rate of increase was similar before and during the pandemic. The absolute number of individuals who accessed SSHM remained low throughout the pandemic.
Transformations, trajectories, and similarities of national production structures: A comparative fingerprinting approach
Authors: Nordlund Carl
Published: December 2023

This article proposes a network-analytical framework for the comparative study of national production structures in global production networks. Conceptualizing such structures as the linked networks of both domestic and foreign intermediate inputs, the latter constituting the characteristic feature of contemporary economic globalization, the proposed approach extracts a structural profile that captures the up- and downstream prominence of economic sectors for a particular country and year. These ‘fingerprints’ of national production structures can subsequently be compared on a pairwise basis, providing novel ways to determine and compare the structural similarities, transformations, and trajectories of national economies in the transnational production regime. Two shorter case studies exemplify the approach. The first applies clustering methods to explore spatiotemporal similarities of the production structures for 40 countries over the 1995–2011 period. Based on such similarities, an analytically useful classification into 11 structural types is proposed. The second study addresses structural transformations and trajectories during EU’s eastern enlargement, finding significant structural change, yet minuscule East-West convergence.
Gene expression changes throughout the life cycle allow a bacterial plant pathogen to persist in diverse environmental habitats
Authors: de Pedro-Jové Roger , Corral Jordi , Rocafort Mercedes , Puigvert Marina , Azam Fàtima Latif , Vandecaveye Agustina , Macho Alberto P. , Balsalobre Carlos , Coll Núria S. , Orellano Elena , Valls Marc
Published: December 2023

Bacterial pathogens exhibit a remarkable ability to persist and thrive in diverse ecological niches. Understanding the mechanisms enabling their transition between habitats is crucial to control dissemination and potential disease outbreaks. Here, we use Ralstonia solanacearum, the causing agent of the bacterial wilt disease, as a model to investigate pathogen adaptation to water and soil, two environments that act as bacterial reservoirs, and compare this information with gene expression in planta. Gene expression in water resembled that observed during late xylem colonization, with an intriguing induction of the type 3 secretion system (T3SS). Alkaline pH and nutrient scarcity—conditions also encountered during late infection stages–were identified as the triggers for this T3SS induction. In the soil environment, R. solanacearum upregulated stress-responses and genes for the use of alternate carbon sources, such as phenylacetate catabolism and the glyoxylate cycle, and downregulated virulence-associated genes. We proved through gain- and loss-of-function experiments that genes associated with the oxidative stress response, such as the regulator OxyR and the catalase KatG, are key for bacterial survival in soil, as their deletion cause a decrease in culturability associated with a premature induction of the viable but non culturable state (VBNC). This work identifies essential factors necessary for R. solanacearum to complete its life cycle and is the first comprehensive gene expression analysis in all environments occupied by a bacterial plant pathogen, providing valuable insights into its biology and adaptation to unexplored habitats.
Ipari vagy más forradalom, innovációs vagy civilizációs hullám zajlik-e?
Authors: Pataki Béla
Published: December 2023

Az „ipar 4.0” és a „4. ipari forradalom” közismert, gyakran használt kifejezések, de vannak, akik kritizálják őket. Az a legkevésbé fontos kritika, hogy a „sorszámozott ipari forradalmak” különböző változatainak tartalmában vannak különbségek. Fontosabb, hogy az emberi jólét és hatalomérvényesítő képesség indikátorainak görbéi az „első” ipari forradalom idején íveltek föl, a „második” és „harmadik” csak ugyanazt a trajektóriát folytatta. Az „első” ipari forradalommal jött létre a kapitalizmus, de egyik „további” sem hozott hasonló változást. Vannak alternatív elméletek különböző számú innovációs hullámokról. A Boston Consulting Group szerinti aktuális hullám, a mélytechnológia jellemzően fizikai termékekbe építi be az informatikát. Ha az emberiség történelmének egészére tágítjuk látókörünket, akkor mezőgazdasági, ipari és informatikai forradalmat különböztethetünk meg. Talán egy mesterségesintelligencia-forradalom is elkülöníthető lehet az informatikai forradalomtól. Ha túl könnyen osztogatjuk az „ipari forradalom” címkét, akkor devalváljuk azt, és nem vesszük elég komolyan az aktuális, várhatóan valóban sorsfordító hullámot.
Prácticas de discriminación racial en la Universidad Distrital Francisco José De Caldas
Authors: Marín Sandra , Navarro Mejía David
Published: December 2023

El presente estudio se enfoca en la discriminación racial en contextos universitarios, específicamente en la Universidad Distrital Francisco José de Caldas de Colombia. A través de una investigación cualitativa basada en entrevistas semiestructuradas a estudiantes, profesores y administrativos, se buscó comprender las prácticas discriminatorias existentes en la institución y las percepciones de los actores involucrados. Esto con el fin de identificar diversas formas de discriminación, como la exclusión de estudiantes afrodescendientes de actividades académicas y la asignación de roles estereotipados a ciertos grupos étnicos. La metodología empleada permitió una exploración detallada de las experiencias de los participantes y la comprensión de los factores subyacentes a la discriminación racial en la universidad. Los resultados revelan que las personas entrevistadas experimentan discriminación y exclusión en ámbitos como la educación y el trabajo, debido a su apariencia física y color de piel. Estos hallazgos respaldan la idea de que la pigmentocracia influye en la forma en que las personas son tratadas en la sociedad, pues se crean desigualdades basadas en el color de piel.
STUDY OF THE POSSIBILITY OF OBTAINING THERMAL INSULATING MATERIALS USING ASH WASTE
Authors: Manakova N. K. , Suvorova O. V. , Makarov D. V.
Published: December 2023

The possibility of obtaining inorganic block heat-insulating foams based on silica and ash-containing man-made waste is considered. The influence of modifying additives and technological modes on the structure and basic technical properties of foam silicates has been determined. As a result of the studies, the optimal content of ash waste was established in the amount of 5 – 15 %. The obtained foam silicates are characterized by physical and technical properties: density 0,36 – 0,45 g/cm3, strength 2,8 – 5,2 MPa, thermal conductivity 0,089 – 0,106 W/(m?K) and water absorption 14 – 22 %.
THE INFLUENCE OF MAGNETITE ON THE RADIO-ABSORBING PROPERTIES OF POROUS GLASS COMPOSITE IN THE HIGH-FREQUENCY REGION
Authors: Skirdin K. V. , Dorozhkin K. V. , Kazmina O. V.
Published: December 2023

The effect of the addition of magnetite in the form of pyrite stubs on the physico-mechanical and radio-absorbing properties of the synthesized glass composite by the method of “cold” foaming is considered. Replacing glass powder with magnetite in the initial liquid-glass composition reduces the foaming coefficient from 80 to 20 %, which is due to a decrease in the viscosity of the composition due to the particle size of the additive (160 ?m), their high density (5100 kg/m3) and porous structure. It has been established that the optimal content of magnetite for obtaining a material with radio-absorbing properties is no more than 10 %. A porous glass composite with an average pore size of 2, containing 10 % magnetite, has an absorption coefficient of electromagnetic radiation in the high-frequency range (120 – 250 GHz) on average 10 % more than a composite without an additive.
UNIFICATION OF A NEW TYPE OF AXIAL PISTON HYDRAULIC MACHINES WITH DOUBLEROW CYLINDER BLOCKS
Authors: Nizhegorodov A. I.
Published: December 2023

This article considers several designs of hydraulic machines with double-row inclined cylinder blocks with one and two oscillating units, which comprise a new type of axialpiston hydraulic machines. The hydraulic machines under consideration differ in terms of driving the cylinder blocks in a rotary motion, i.e., through cone rods with elongated pistons and through conic gears fixed to the blocks and drive discs. The former approach allows the working volume of the hydraulic machine to provide for the maximum angle of block inclination of 30°. The latter approach increases the working volume up to 50 % by increasing the block inclination angle to 40°, although implying a more complex design. Another specific feature of the considered designs consists in the symmetry of twin oscillating units in the former case and their non-symmetry in the latter case. This creates the possibility of developing standardized series of such hydraulic machines and unification of the major part of components. This question is esential for the development of series of standard sizes of such hydraulic machines including those with one double-row inclined block.
REVIEW OF THE PATHOVIEW ONLINE SERVICE FOR SHARING DIGITAL SAMPLES IN MICROSCOPY
Authors: Kasoyan K. T. , Shabalova I. P. , Sapozhkov V. A. , Churilova A. S. , Kataev G. A. , Falkov B. F.
Published: December 2023

The possibility of remote consultations of specialists in microscopy through the exchange of digital preparations is highly important in clinical laboratory diagnostics.
This review describes the Pathoview online service, which allows storing, viewing and exchanging clinical cases in the form of digital slides in common formats: SVS, TIFF, NDPI, MRXS, DCM. The service requires no additional software installation on your computer or mobile device. In Pathoview, the digital slide is available for viewing in any browser immediately after being uploaded to the service. The link-based sharing function significantly speeds up and simplifies the process of collaborative viewing and remote consultation of specialists.
COAGULASE-NEGATIVE STAPHYLOCOCCI AS CAUSATIVE AGENTS OF HEALTHCARE-ASSOCIATED INFECTIONS
Authors: Maslov Yu. N. , Galyamova L. A. , Ponomarev A. Yu.
Published: December 2023

Novel insight about coagulase-negative staphylococci (CoNS) have been discussed. Recently, CoNS were considered commensal symbionts of the skin and mucous membranes of humans and animals without clinical significance. Currently, CoNS are among the leading etiological agents of purulent-septic infections (PSI), including those that belong
to healthcare-associated infections (HAI).
The morphological and physiological characteristics of CoNS involved in the formation pathogenic potential are considered. The frequent presence of SCCmec chromosome cassettes in the CoNS genome determines the high level of their methicillin resistance which exceeds that of S.aureus.
In the conditions of high antibiotic pressure in the nosocomial environment, CoNS becomes a reservoir of resistance genes. The presence of unidentified types of use of SCCmec and the possibility of spreading mobile phenomena between CoNS and S.aureus causes clinical and epidemiological danger, the frequency of antibiotic use in HAI and an increased risk of pathogen circulation in the hospital environment.
The most frequent forms of HAI caused by individual representatives of the CoNS are presented. Vulnerable contingents for these infections are premature newborns and persons of any age with compromised immunity. The necessity of epidemiological control improving in the CoNS including local microbiological monitoring using modern molecular biological methods is justified.
DIAGNOSTICS OF THE PRESS POWER FRAME WITH THREADED CONNECTIONS OF LOAD-BEARING ELEMENTS BY STRAIN GAUGE METHOD
Authors: Shlyakhtenkov S. P. , Popkov A. A. , Vyplaven V. S. , Gulyev M. A. , Bobrov A. L. , Bekher S. A.
Published: December 2023

The distribution of tightening forces between several threaded connections of power elements of machines and mechanisms directly affects the strength and reliability of the entire structure. When operating heavily loaded mechanisms with threaded connections in excess of the deadlines set in the technical documentation, the likelihood of loosening the tightening increases. This negatively affects the distribution of stresses in the power frame and, under unfavorable conditions, can lead to an increase in the level of mechanical stresses to critical values. The purpose of the work is a strain gauge method for monitoring the power frame of a hydraulic stamping press with threaded connections to assess the operability of the structure and conclude on the feasibility of repairs. Using strain gauges and finite element modeling methods, the regularities of the distribution of deformations in the material of columns and press racks with a maximum workload of 10 thousand tons are established. It is shown that in the working cycle, deformations are determined by the force and moment of force associated with the eccentricity of the application of the working force. Criteria for assessing the quality of threaded connections based on the relative difference and simultaneity of changes in mechanical stresses in the material of columns and press racks have been developed. The immobility of the connections of the power frame of the press during operation with maximum effort is ensured by the uniformity of the stress distribution on the racks and columns, taking into account the error of the results of the strain gauge method of 5%. The influence of the sliding elements of the movable elements of the press on the experimentally established patterns of stress distribution is substantiated by the method of finite element modeling.
ZORUNLU KARŞILIK ORANLARINDAKİ UYGULAMA DEĞİŞİKLİĞİNİN BIST BANKA ENDEKSİ ÜZERİNDEKİ ETKİSİNİN ANALİZİ
Authors: KANDEMİR Şenol , SANLI Elif
Published: December 2023

Bu çalışmada Türkiye Cumhuriyet Merkez Bankası (TCMB)’ nın 23.04.2022 tarihinde yapılan 2022-24 sayılı duyurusu ile zorunlu karşılıkların bankaların bilançolarının pasif tarafına uygulanan zorunlu karşılıkların aktif tarafına da uygulanmaya başlanmasının BIST Banka Endeksinde yer alan bankaların pay fiyatlarına etkisi olay çalışması yöntemiyle analiz edilmiştir.

Pay fiyatlarının 23 Nisan 2022 tarihli zorunlu karşılık uygulamalarında meydana gelen değişime tepkisini ölçmek için ortalama anormal getirileri (AAR), t-test istatistikler ve p-değerleri hesaplanmıştır. Çalışma sonucu zorunlu karşılık uygulamasında meydana gelen değişim duyurusunun BIST banka paylarında anormal getirilere neden olduğu ve piyasanın yarı güçlü formda etkin olmadığını göstermektedir.
On the monotonic properties and oscillatory behavior of solutions of neutral differential equations
Authors: Masood Fahd , Moaaz Osama , Santra Shyam S. , Fernandez-Gamiz Unai , El-Metwally Hamdy
Published: December 2023

In this work, we study new asymptotic properties of positive solutions of the even-order neutral differential equation with the noncanonical operator. The new properties are iterative, which means they can be used several times. We also use these properties to obtain new criteria for oscillation of the studied equation.
Obstetric pulmonary embolism and long-term cardiovascular symptoms: a cross-sectional study in Western Mexico
Authors: Corona Gutierrez America Aime , Rosas Gomez Elvira Sarahi Michelle , Camarena Pulido Eva Elizabet , Lopez Aceves Luis Javier , Robledo Aceves Mireya , Bañuelos Avila Ana Jaqueline
Published: December 2023

Objectives

Pulmonary embolism (PE) is an important cause of maternal mortality. There are several guidelines for its diagnosis and management, but there is little information regarding follow-up and frequency of long-term complications. The aim of the study was to determine the frequency of long-term cardiovascular symptoms in patients who had obstetric PE.

Methods

Cross-sectional study including patients who had PE during pregnancy or the puerperium. A telephone interview was conducted at least one year after PE, to determine the frequency of cardiovascular symptoms, general health, and COVID-19 infection, considering the study was conducted during the 2020 pandemic.

Results

In five years (2015–2019) there were eleven patients with PE, two died during the acute phase, and the rest (nine) were alive and able to answer our interview. Cardiovascular symptoms were common (6, 67 %), the most frequent were fatigue, edema, and mild dyspnea. Four patients (44 %) had slight limitation of physical activity and one (11 %) had PE recurrence. Of the six symptomatic patients four had obesity and one was overweight.

Conclusions

There is a high frequency of long-term cardiovascular symptoms in patients who had PE during pregnancy or the puerperium. Stronger evidence is needed to design a long-term care pathway after obstetric PE.
Cuteness modulates size sound symbolism at its extremes
Authors: Schmitz Dominic , Cicek Defne , Nguyen Anh Kim , Rottleb Daniel
Published: December 2023

Despite the rapidly growing body of research on sound symbolism, one issue that remains understudied is whether different types of sensory information interact in their sound symbolic effects. The experimental study reported here consisted of two tasks and focused on one such potential interaction: size associations and cuteness. First, a forced-choice task was conducted in which size ratings were elicited for pseudowords containing different vowels and consonants. The pseudowords were introduced as names of alien creatures, which were used as visual stimuli in the experiment. Second, the cuteness of alien creatures was assessed in a judgement task. Both tasks were completed by the same group of German speakers. In line with previous research, /aː/ was associated with largeness and /iː/ was associated with smallness. Further, we found that cuteness modulates size associations in /aː/ and /iː/. For /aː/ judged size increased, while for /iː/ judged size decreased with increasing cuteness. Regarding consonants, we found that /ʁ/ evoked higher size associations than other consonants under investigation. Interactions of cuteness and consonants did not reach significance. Our findings call for the integration of other possible factors and features that might show sound symbolic effects or interactions with such in sound symbolism research.
Decision support system for the classification of Downey cells as a pre-diagnostic tool
Authors: Ardicoglu Akisin Yasemin , Akar Nejat , Burkay Cotelı Mert
Published: December 2023

Objectives

Epstein–Barr virus (EBV) is a member of the herpes virus that causes infectious mononucleosis (IM). Downey cell is the atypical lymphocyte of IM and can be seen in various conditions. Peripheral blood smear (PBS) microscopic evaluation is used to identify Downey cells. A lack of experienced professionals or professional errors may obstruct early and accurate diagnostics for the microscopic evaluation. The main objective of this study is to create a decision support system by digitizing the PBS samples. A general tool providing an inexpensive and measurable solution is envisioned to analyze the PBS samples in detail to give alerting flags to prevent missing Downey cells in manual analysis.

Methods

The PBS dataset collected was split into Downey positives and negatives. The negative set consisted of 5 leucocyte subtypes. Mantiscope, a cloud-based slide scanner system, was used to collect images from the physical PBS samples. Clinically and laboratory-confirmed 35 IM patients and 124 healthy PBS slides were selected for this procedure. A number of cell counts were obtained after the application of annotation and augmentation methods, and a partially balanced dataset was created for the artificial intelligence (AI) network training. The verification steps included the calculation of sensitivity, specificity, and Cohen’s kappa metrics from the partitioned testing set that was not used during training. A validation process was also performed over the manually identified PBS samples to measure whether the algorithm noticed the samples or not.

Results

After testing this setup, we have observed 98 % sensitivity and 99 % specificity for Downey cells. According to the validation procedure of Downey positive and negative samples that were carried out by the physicians, a sensitivity of 57 %, specificity of 100 %, and Cohen’s kappa value of 0.5 were observed. Besides, the accuracy was found to be 66 % according to the physicians’ evaluations employing the digital images which were identified by Mantiscope,

Conclusions

Decision support systems can alert the physician for Downey cells and increase the rate of true diagnosis in PBS evaluation. A higher sensitivity and specificity for the detection of Downey cells would be achieved. However, the variance over the dataset is a constraint for effective diagnosis. As the annotation and AI development process continues to collect more data from patients, the model can be updated for future releases.
Œnotourisme in Switzerland-Producer initiatives and policies
Authors: Inoue Takako
Published: December 2023

According to the International Organisation of Vine and Wine (OIV), Switzerland’s wine production in 2021 was 1 million hl, ranking 21st in the world. The Swiss wine production is supported by 2148 communes, where four languages are spoken (German, French, Italian and Romansh), and the vineyards, varying in altitude from 200 to 1150 m, where traditional wines characteristic of the local culture are produced. This paper discusses Œnotourisme (wine tourism) from a policy perspective, which in Switzerland, has become increasingly active in recent years. The paper considers sustainable agriculture and tourism from a policy perspective, examining the origins of the livelihood of agriculture and tourism, starting with landscape studies, and from the viewpoints of the grape and wine producers who operate Œnotourisme. The effects of the policy will be examined. Situating sustainability as it core. Wine tourism is referred to as Œnotourisme, the starting point of wine in this paper.
Do German winegrowers see a connection between biodiversity and wine tourism?
Authors: Tafel Maximilian , Szolnoki Gergely , Jedicke Eckhard
Published: December 2023

German winegrowers are increasingly creating habitats in wine landscapes that are necessary for the preservation of biodiversity. Since biodiversity in the landscape can have a positive impact on tourism attractiveness, one might assume that winemakers are also promoting tourism by doing so, but are they aware of this? The aim of this study is to explore whether German winegrowers see a link between biodiversity and tourism in wine regions and what this link might look like. For this purpose, 52 qualitative interviews were conducted with German winegrowers from all 13 German wine regions. The results show that German winemakers are aware of the central importance of the landscape in attracting tourists and that the clear majority of the interviewed winegrowers believe that a biodiverse landscape has a positive impact on tourism in wine regions. This work reveals unanswered research questions and opens a wide field for researchers to address the topic. Promoting biodiversity could be one of the most important factors contributing to the appeal of wine landscapes and could thus increase the attractiveness of wine regions for potential visitors. Ultimately, tourism flows could be optimized and the predominantly rural German wine regions could preserve their cultural heritage and develop into new aspects of sustainability.