bluuebunny/crossref_metadata_2025_split huggingface dataset:
Introduction to the Fourier transform studying the oscillations of a pendulum
Authors: Alvarado Reyes José Manuel , Stern Forgach Catalina 
Published: June 2023

Students of physics, engineering and related majors; generally, do not know the usefulness and applications of transforming a signal from the time domain to the frequency domain. The mathematics that makes possible this transformation is well known to senior students of the majors, but vaguely applied in teaching laboratories. The main phenomena that could provide us with frequency information, the pendulum and the spring, are minimized by focusing only on obtaining the mathematics dictated in books. The pendulum is the most studied physical system in teaching laboratories from precollege up to college levels; this phenomenon is analyzed mathematically in most of the related literature in the area of Physics and Engineering. It is an introduction to the wave phenomenon. However, teaching paradigms, focus on the plain demonstration that periods are invariant to suspended masses, if and only if the oscillation is within angles not greater than 10 degrees from their normal. The use of technologies, computational and electronic, also focuses on the demonstration of such assertion. In the present work, a mechanical-electrical system was designed that allows to observe, in real time, on the screen of an oscilloscope, the swinging behavior of a pendulum. This system makes evident that the swing movement of a pendulum can be described by a sine function, but also with this same system, and with the help of a digital oscilloscope, it is possible to simultaneously observe the signal generated in the temporal domain and in the frequency domain. This innovation not just breaks the paradigms of teaching but also promotes an alternative to valuable observations promotes understanding.
Little Girls, Big Dreams
Authors: Vaclavik Kiera 
Published: June 2023

AbstractPublished 70 years apart and adopting contrasting approaches to real-world detail, Lewis Carroll's Alice books and Noel Streatfeild's Ballet Shoes bear a number of affinities. Both portray dynamic, creative, and skillful girls whose dreams and destinies they probe. In this article, I highlight Alice's inventiveness and the curtailment of her dreams, then examine Streatfeild's employment of a production of Alice in Wonderland to delineate two distinct modes of female creativity. While the endings of the two works seem distinct, offering far greater possibilities of self-fulfilment for Streatfeild's heroines, neither is unproblematic. If Streatfeild has no time for the interpersonal relationships and domesticity imposed upon Alice, she nevertheless insists upon a hierarchized value system that downgrades the very creativity it purportedly celebrates.
Critical and Coalitional Pedagogies Embodied by Girls of Color
Authors: Brown Tashal 
Published: June 2023

AbstractIn this article, I explore girlhood pedagogies embodied and enacted by girls of color who participated in a social justice leadership program. I facilitated dialogues with these girls that unearthed how white supremacy and heteropatriarchy shape their sociopolitical realities. Drawing on the insights the girls offered and scholarship from women of color feminists theorizing and enacting solidarity, I define and illustrate critical and coalitional girlhood pedagogies. I evidence how girls of color embodied this praxis by engaging in dialogue in spaces that welcome the gravity, vulnerability, and divergent perspectives that emerged through examinations and reflections on their encounters with oppression and argue that spaces that center critical and coalitional girlhood pedagogies engender criticality, compassionate understanding, and coalitional thinking and acting.
Isotherms and Kinetics Study for Adsorption of Nitrogen from Air using Zeolite Li-LSX to Produce Medical Oxygen
Authors: Mohammed Ali Marwa Hussein , Almilly Raghad F. , Abid Riyadh Kamil 
Published: June 2023

This research investigates the adsorption isotherm and adsorption kinetics of nitrogen from air using packed bed of Li-LSX zeolite to get medical oxygen. Experiments were carried out to estimate the produced oxygen purity under different operating conditions: input pressure of 0.5 – 2.5 bar, feed flow rate of air of 2 – 10 L.min-1 and packing height of 9-16 cm. The adsorption isotherm was studied at the best conditions of input pressure of 2.5 bar, the height of packing 16 cm, and flow rate 6 Lmin-1 at ambient temperature, at these conditions the highest purity of oxygen by this system 73.15 vol % of outlet gas was produced. Langmuir isotherm was the best models representing the experimental data., and the model parameters were the maximum monolayer coverage (qm) 200 mg. g-1 and Kl 0.00234 L.mg -1. Also, from the Freundlich isotherm model, the sorption intensity (n) indicated favorable sorption of 1.435. The average free energy estimated from the DRK isotherm model was 0.02 KJ.mol-1, which proved the adsorption process to follow physical nature. The results got from experiments showed a coincidence to the pseudo-first-order kinetic model.
Gamification Mechanics Usage for UGC Promotion in Online Library Marketing
Authors: Maranchak Mykola , Maranchak Nadiya 
Published: June 2023

The aim of the article is to highlight effective gamification mechanics in the Internet marketing of the information and library industry for stimulating the creation of modern custom content forms, or User Generated Content (UGC), which can improve the position and organic coverage of the official library account in Web 2.0.
Research methods were based on general scientific principles of theory and practice unity, systematicity, complexity, cognition comprehensiveness. The achievement of this set goal was facilitated by the use of general scientific (description, analysis, synthesis, comparison, generalization), and special (bibliographic, selective observation, grouping, content analysis) methods at the empirical and theoretical research levels.
Scientific novelty of the study consists in the following: identified gamification mechanics for UGC stimulation that contribute to the Internet marketer’s activity effectiveness in the information and library sphere; suggestions for the use of gamification types approved in other industries, and characteristic features of the game in attracting users to interaction with library institutions in Web 2.0.
Main conclusions. Among the priority tasks of library Internet marketers is to support the interaction with the existing custom base, and attract new users to information and library institutions. The usage of the latest content formats, as well as the involvement of Web 2.0 customers in its creation and distribution, contribute to these tasks. Regardless of whether the audience is involved in the UGC creation through the gamification activation, other mechanics or its own initiative, the custom content increases the trust in libraries of those people who are tired of direct advertising and do not respond to it. Gamification mechanics are just one of the possible ways to attract an audience to UGC, but the experience of international and Ukrainian companies proves their effectiveness, and the necessity of their usage by Internet marketers of any field, including the information and library industry.
The Role of Electronic Libraries in Cultural Heritage Saving and Accessibility
Authors: Anisimova Olha , Rebreniuk Yuliia 
Published: June 2023

The aim of the article is to highlight the importance of saving cultural heritage, to investigate the role played by electronic libraries in this process, and to analyze current directions of their activity, as well as problems of their adaptation to the realities of today.
Research methods ground on the combination of general scientific, interscientific and actually scientific principles of scientific knowledge: objectivity, historicism, research evidence, conceptual and terminological uniformity and accuracy, integrity, practical orientation. Theoretical, culturological and social-communication-informational approaches were also used, which made it possible to analyze the role of electronic libraries as a system of social and informational communications aimed at effective saving and accessibility of rare and unique documents.
Scientific novelty consists in highlighting the dynamics of the technological development of information technologies, and their use for saving and accessibility of cultural heritage, the analysis of projects of electronic libraries successful use for saving and accessibility of rare and unique documents. The advantages of electronic libraries over the traditional ones were analyzed in detail, including their effectiveness in saving and accessibility of rare and unique documents that could be damaged or lost due to age or other factors.
Main conclusions. The results of the study proved the important role of electronic libraries in saving and accessibility of rare and unique documents. The significant importance of electronic libraries as a system of social and informational communications aimed at effective saving and accessibility of rare and unique documents was confirmed Safeguarding them from damage and destruction, making these documents accessible to a wide audience via Internet, prove to enable people from all over the world to study and research rare and unique documents that would otherwise be available only to a limited number of researchers.
Deposit of Intellectual Activity Results: Challenges and Opportunities of Open Access and Open Science for Ukraine
Authors: Zharinova Alla , Yaroshenko Tetyana 
Published: June 2023

The aim of the article is to study the place of the process of depositing the intellectual activity results within the paradigm of open science; to summarize relevant international developments; to offer their use for the transformation of the deposit system in Ukraine.
Research methods. The article uses a set of general scientific methods of generalization and analysis, synthesis and forecasting, as well as special library science methods, which made it possible to achieve the declared goal.
Scientific novelty of obtained results lies in grounding the need in modification of policies and procedures for depositing intellectual property results, and the creation of necessary infrastructure, taking into consideration the concepts of open access and open science, as well as the corresponding international practice.
Main conclusions. The open science paradigm implementation is a current world trend, which enables immediate and constant access to the results of scientific research and data. Many challenges are brought about by this tendency for both scientists and those ones in charge of publishing, storing, and preserving data, such as libraries. The transformation of the system of intellectual property results depositing in Ukraine should take into account the best international experience in the development of research infrastructure, and the creation of repositories of publications and data; ensuring their compatibility and interoperability; more active introduction of the culture of preprints and open review; the development of public license and copyright policies; the needs of relevant research and practices in the field of digital curatorship. Especially, all the highlighted above should be viewed in the aspect of the National Open Science Plan which was approved in Ukraine in October, 2022, the need for integration with the European Open Science Cloud, and the new version of the Law of Ukraine “On Copyright and Related Rights”, which has entered into force since January 1, 2023.
economía popular y la lucha por el reconocimiento como actor sindical en la Argentina
Authors: Hindi Guadalupe 
Published: June 2023

El siguiente artículo se propone abordar los procesos recientes de organización de los “excluidos” en clave de economía popular en la Argentina. Nos interesa detenernos puntualmente en las modalidades que adquiere la demanda por el reconocimiento como actor sindical de la Confederación de Trabajadores de la Economía Popular que nuclea a un conjunto de organizaciones sociales surgidas al calor de la resistencia de la avanzada neoliberal durante la década del 90 en este país. Indagamos allí, los modos en que las propias reivindicaciones y demandas de las organizaciones nucleadas en dicha Confederación tensionan con diferentes miradas en torno a las instituciones del mundo del trabajo.
El análisis propuesto se enmarca en los resultados de una investigación cualitativa, que articula la observación de la escala cotidiana, con entrevistas en profundidad, el acervo documental y las voces públicas.
Combating Poor Mental Health in Emergency Responders: Helping Emergency Responders Overcome (HERO) Act
Authors: Derynda Brittany , Gupta Krisha A. , Bhattacharya Shreya , Hollar T. Lucas 
Published: June 2023

Suicide rates are alarmingly higher among emergency responders than the general public, and it is estimated that 30% of first responders develop behavioral health conditions compared with 20% in the general population. Emergency responders experience their share of work-related stresses, but mental health problems in this demographic are often under-reported. For example, only 40% of suicides committed by emergency responders are reported. Amid these issues, there is a lack of best practice guidelines for mental health treatment among emergency responders. Hence, the stage is set for legislation to focus on improving mental health among emergency responders.
The Helping Emergency Responders Overcome (HERO) Act seeks to improve mental health among emergency responders through improved detection, prevention, and treatment, ultimately leading to decreased rates of suicide. The HERO Act would implement data systems to capture rates and risk factors related to suicide, establish behavioral health and wellness programs within emergency responder departments, and implement evidence-based best practices to identify, prevent, and treat post-traumatic stress disorder in emergency responders.
Osteopathic family medicine physicians play a crucial role in screening and managing poor mental health among their patients. Caring for the body, mind, and spirit is a core tenet of osteopathic medicine; therefore, osteopathic family physicians are uniquely positioned to help emergency responders overcome their mental health struggles. Given the prevalence of emergency responders who receive care from such physicians, and the value osteopathic medicine can offer this population, we encourage the profession to contribute to discussions surrounding the HERO Act.
Dose-escalating ruxolitinib for refractory hemophagocytic lymphohistiocytosis
Authors: Song Yue , Li Xiaoli , He Xuefeng , Zhou Fei , Du Feng , Wang Ziyan , Chen Suning , Wu Depei 
Published: June 2023

BackgroundHemophagocytic lymphohistiocytosis (HLH) is a severe disorder characterized by excessive secretion of cytokines. Even with the recommended HLH-94/2004 regimen, over 30% of patients remain refractory to frontline therapy or relapse after an initial response, leading to poor clinical outcomes. Ruxolitinib, a JAK1/2 inhibitor targets key cytokines in HLH, has shown promising therapeutic effects. However, there has been little attention given to patients who do not respond to ruxolitinib and whether an escalating dose can provide a resolution.MethodsThis study analyzed eight HLH patients who received dose-escalating ruxolitinib who had previously failed to respond to the general dose. The efficacy and safety were mainly analyzed.ResultsOverall, four out of eight (50%) patients achieved better remission after dose escalation. Two patients who only showed improvement with the general dose achieved complete remission (CR) after dose escalation, and the other two patients also achieved CR after dose escalation when they did not respond to the general dose. The median time to achieve the best overall response was 18.5 days (IQR 13.25–23.75 days). There was no correlation of treatment outcome with blood count, liver function, LDH, cytokines, ferritin levels, NK cell activity, or the time to initiation of ruxolitinib and maximum dosage. The etiology of HLH (p=0.029) and level of sCD25 (p=0.021) correlated with treatment response to dose-escalating ruxolitinib. The area of sCD25 under the ROC curve was 0.8125 (95% CI 0.5921 to 1.033, p=0.035) when using 10,000 pg/ml as the cut-off value for predicting therapeutic effects. After a median follow-up of 159 days, two patients died, and the estimated 2-month overall survival rate was 75%. Adverse effects possibly related to the dose-escalating of ruxolitinib included two cases of extremity pain and one of aminotransferase increased. No grade 3 or higher adverse events were reported.ConclusionThis is the first comprehensive study on the use of dose-escalating ruxolitinib in HLH. Ruxolitinib at an escalated dose represent a viable and relatively safe solution for managing refractory HLH. The levels of sCD25 (with a cut-off of 10000pg/ml) can serve as an indicator for early consideration of chemotherapy during treatment.
Experimental investigation of micro EDM drilling in the CFRP using response surface methodology
Authors: Kaushik Nitish , Jha Sanjay Kumar , Anand Ravi Shankar 
Published: June 2023

Recently, most of the conventional (industrial) materials such as steel, aluminum, and copper are being replaced by composite materials. Among the various composite materials, CFRP material is one of the most popular materials in many industries due to its excellent mechanical properties like-high strength, high modulus, compressive strength, etc. However, the micro hole in micro EDM drilling in the CFRP composite material is challenging due to fiber orientation, uneven distribution of conducting fiber, and delamination affecting the material removal rate (MRR) and micro hole quality performance. The objective of the article is to optimize the process parameters for optimum hole quality in the micro EDM drilling of CFRP composites. For this purpose, response surface methodology is applied to investigate the effect of the input process parameters which are voltage, capacitance, and tool rotation speed on material removal rate, roundness error, and tapper of the micro-hole. The experiments have been conducted according to the box behnken design of experiments. Regression equations, and response surfaces are developed. Optimum responses are determined by the desirability function approach. The experimental investigation shows that capacitance is the highly significant factor among the input process parameters affecting hole quality output responses such as material removal rate, roundness error, and tapper. The MRR increases with increasing the capacitance and tool rotation speed initially but its value decreases on further increasing the capacitance at a particular voltage. Roundness error and the tapper initially decrease on increasing capacitance and tool rotation speed then increases. The optimum material removal rate and hole quality are obtained in a range of 150–250 nF capacitance, and 1400–1600 rpm tool rotation speed, at 100 voltage.
Comparative effectiveness of biologics for patients with moderate-to-severe psoriasis and special area involvement: week 12 results from the observational Psoriasis Study of Health Outcomes (PSoHO)
Authors: Piaserico Stefano , Riedl Elisabeth , Pavlovsky Lev , Vender Ronald B. , Mert Can , Tangsirisap Nithi , Haustrup Natalie , Gallo Gaia , Schuster Christopher , Brunner Patrick M. 
Published: June 2023

IntroductionPsoriasis localized at the scalp, face, nails, genitalia, palms, and soles can exacerbate the disease burden. Real-world studies comparing the effectiveness of treatments for these special areas are limited.MethodsPsoriasis Study of Health Outcomes (PSoHO) is an international, prospective, non-interventional, study comparing the effectiveness of anti-interleukin (IL)-17A biologics (ixekizumab and secukinumab) compared to other approved biologics and the pairwise comparative effectiveness of ixekizumab relative to five other individual biologics for patients with moderate-to-severe psoriasis. To determine special area involvement, physicians answered binary questions at baseline and week 12. The proportion of patients who achieved special area clearance at week 12 was assessed. Missing outcome data were imputed as non-response. Comparative treatment analyses were conducted using frequentist model averaging.ResultsOf the 1,978 patients included, 83.4% had at least one special area involved at baseline with the scalp (66.7%) as the most frequently affected part, followed by nails (37.9%), face/neck (36.9%), genitalia (25.6%), and palms and/or soles (22.2%). Patients with scalp, nail, or genital, but not palmoplantar or face/neck psoriasis, had significantly higher odds of achieving clearance at week 12 in the anti-IL-17A cohort compared to the other biologics cohort. Patients with scalp psoriasis had a 10–20% higher response rate and significantly greater odds (1.8–2.3) of achieving clearance at week 12 with ixekizumab compared to included biologics.ConclusionBiologics demonstrate a high level of clearance of special areas at week 12 in a real-world setting. Patients with scalp, nail, or genital involvement have significantly higher odds of clearance at week 12 with anti-IL-17A biologics compared to other biologics.
Amyloid beta-correlated plasma metabolite dysregulation in Alzheimer's disease: an untargeted metabolism exploration using high-resolution mass spectrometry toward future clinical diagnosis
Authors: Yang Jingzhi , Wu Shuo , Yang Jun , Zhang Qun , Dong Xin 
Published: June 2023

IntroductionAlzheimer's disease (AD) is a leading cause of dementia, and it has rapidly become an increasingly burdensome and fatal disease in society. Despite medical research advances, accurate recognition of AD remains challenging. Epidemiological evidence suggests that metabolic abnormalities are tied to higher AD risk.MethodsThis study utilized case-control analyses with plasma samples and identified a panel of 27 metabolites using high-resolution mass spectrometry in both the Alzheimer's disease (AD) and cognitively normal (CN) groups. All identified variables were confirmed using MS/MS with detected fragmented ions and public metabolite databases. To understand the expression of amyloid beta proteins in plasma, ELISA assays were performed for both amyloid beta 42 (Aβ42) and amyloid beta 40 (Aβ40).ResultsThe levels of plasma metabolites PAGln and L-arginine were found to significantly fluctuate in the peripheral blood of AD patients. In addition, ELISA results showed a significant increase in amyloid beta 42 (Aβ42) in AD patients compared to those who were cognitively normal (CN), while amyloid beta 40 (Aβ40) did not show any significant changes between the groups. Furthermore, positive correlations were observed between Aβ42/Aβ40 and PAGln or L-arginine, suggesting that both metabolites could play a role in the pathology of amyloid beta proteins. Binary regression analysis with these two metabolites resulted in an optimal model of the ROC (AUC = 0.95, p &lt; 0.001) to effectively discriminate between AD and CN.DiscussionThis study highlights the potential of advanced high-resolution mass spectrometry (HRMS) technology for novel plasma metabolite discovery with high stability and sensitivity, thus paving the way for future clinical studies. The results of this study suggest that the combination of PAGln and L-arginine holds significant potential for improving the diagnosis of Alzheimer's disease (AD) in clinical settings. Overall, these findings have important implications for advancing our understanding of AD and developing effective approaches for its future clinical diagnosis.