bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Ka-Band SiGe BiCMOS Quasi-F−1 Power Amplifier Using a Parasitic Capacitance Cancellation Technique †
Authors: Manouras Vasileios , Papananos Ioannis 
Published: March 2023

This paper deals with the design, analysis, and implementation of a Ka-band, single-stage, quasi-inverse class F power amplifier (PA). A detailed methodology for the evaluation of the active device’s output capacitance is described, enabling the designing of a second-harmonically tuned load and resulting in enhanced performance. A simplified model for the extraction of time-domain intrinsic voltage and current waveforms at the output of the main active core is introduced, enforcing the implementation process of the proposed quasi-inverse class F technique. The PA is fabricated in a 130 nm SiGe BiCMOS technology with fT/fmax=250/370 GHz and it is suitable for 5G applications. It achieves 33% peak power-added efficiency (PAE), 18.8 dBm saturation output power Psat, and 14.7 dB maximum large-signal power gain G at the operating frequency of 38 GHz. The PA’s response is also tested under a modulated-signal excitation and simulation results are denoted in this paper. The chip size is 0.605×0.712 mm2 including all pads.
Crisscrossed Identities and Black Feminist Perspectives in Lucía Mbomío’s Novel Hija del camino (2019)
Authors: Navarro Betsabé 
Published: March 2023

Some claim there is a lack of attention to black studies in current literary and academic fields in Spain. Even though there is an emerging wave of Afro-Spanish writers in the first quarter of the twenty-first century, many of them denounce the struggle they experienced to see their stories published and state that Afro-Spanish literature is absent from Spanish universities’ curricula. Among the recent black voices that have achieved recognition in Spain is journalist and writer Lucía Mbomío, who condemns, in her debut novel Hija del camino (2019), the traumatic experiences that black women undergo with racism and sexism in Spain. With the aim of giving representation to the literature of Afro-Spanish women writers, the present article analyzes Mbomío’s novel from the perspective of black studies, black feminism, and cultural studies.
Mango Peel Nanofiltration Concentrates to Enhance Anaerobic Digestion of Slurry from Piglets Fed with Laminaria
Authors: Macedo Antónia , Fragoso Rita , Silva Inês , Gomes Tânia , Martins Cátia F. , Freire João Bengala , Duarte Elizabeth 
Published: March 2023

The environmental impact of biowaste generated during animal production can be mitigated by applying a circular economy model: recycling, reinventing the life cycle of biowaste, and developing it for a new use. The aim of this study was to evaluate the effect of adding sugar concentrate solutions obtained from the nanofiltration of fruit biowaste (mango peel) to slurry from piglets fed with diets incorporating macroalgae on biogas production performance. The nanofiltration of ultrafiltration permeates from aqueous extracts of mango peel was carried out using membranes with a molecular weight cut-off of 130 Da until a volume concentration factor of 2.0 was reached. A slurry resulting from piglets fed with an alternative diet with the incorporation of 10% Laminaria was used as a substrate. Three different trials were performed sequentially: (i) a control trial (AD0) with faeces resulting from a cereal and soybean-meal-based diet (S0); (ii) a trial with S1 (10% L. digitata) (AD1), and (iii) an AcoD trial to assess the effect of the addition of a co-substrate (20%) to S1 (80%). The trials were performed in a continuous-stirred tank reactor (CSTR) under mesophilic conditions (37.0 ± 0.4 °C), with a hydraulic retention time (HRT) of 13 days. The specific methane production (SMP) increased by 29% during the anaerobic co-digestion process. These results can support the design of alternative valorisation routes for these biowastes, contributing to sustainable development goals.
Geographical Exploration of the Underrepresentation of Ethnic Minority Cyclists in England
Authors: Kokayi Afua , Shiode Shino , Shiode Narushige 
Published: March 2023

Cycling is encouraged as a means of sustainable urban transport, yet its uptake rate is uneven between different ethnic groups. The ethnic minority population in England is underrepresented as cyclists, but the reasons for this are unclear. Through linear regression and Geographically Weighted Regression (GWR), this research investigates the spatial distribution of the propensity to cycling among the ethnic minority population and the white population across England with the aim to identify the contributing factors toward the discrepancy of cycling rates between both groups and how these factors vary geographically. Results from OLS regression suggest that cycle rates are generally affected most by hilliness, the presence of school-age children, and income, with the presence of school-age children affecting the ethnic minority group and hilliness affecting the white group the most. The use of GWR revealed that income generally reduces cycle rates but has a positive impact in London for both groups. The length of cycleways and the length of 20 mph speed limit roads per unit area were statistically insignificant, but their local coefficients in GWR showed strong regional variations for both groups. The study also found that, with the exception of the level of income, ethnic minority cyclists are less sensitive to contributing factors than the white cyclists.
PECULIARITIES OF SELF-ATTITUDE OF EDUCATIONISTS WITH DIFFERENT LEVELS OF EMOTIONAL BURNOUT
Authors: Metelska N. 
Published: March 2023

The article presents the results of an empirical study of the problem of emotional burnout of pedagogues. In particular, an analysis of the peculiarities of self-attitude of educationists with different levels of emotional burnout is made.
The nature of the connection between the level of emotional burnout of educationists and the peculiarities of their professional self-consciousness, in particular self-attitude as one of the components of a specialist’s self-consciousness, is analyzed. The results of the comparative study proved that inspite rather high indicators of self-approval and positive self-esteem, the studied pedagogues are not sure that their personality is interesting for others, and they are also convinced that other people and colleagues are not interested in them. We came to the conclusion that most of the symptoms and phases of emotional burnout are not formed within the group of the studied educationists, but they are characterized with a certain emotional closedness, aloofness and indifference, which can be an indicator of their emotional exhaustion, and against this background any emotional involvement into professional affairs and communications can cause the feeling of excessive fatigue of pedagogues.
The results of a comparative analysis of peculiarities of the self-attitude of educationists with different levels of emotional burnout indicate a general high level of self-attitude of the subjects, but do not exclude the formation of professional deformations of them. In general, it was found that a high level of positive self-attitude of educationists correlates with a low level of manifestation of symptoms and phases of burnout in their professional activities. Educationists with a positive self-attitude are less likely to feel emotional exhaustion, fatigue, and desolation caused by professional activity. In addition, pedagogues with positive self-attitude are less likely to experience the leveling of professional achievements, disruption of professional communications, dissatisfaction with themselves as professionals and their own professional activity, as well as psychosomatic diseases, perception of the conditions of professional activity and interpersonal relationships in the professional area as psychologically traumatic.
Sodium magnetic resonance imaging shows impairment of the counter-current multiplication system in diabetic mice kidney
Authors: Nakagawa Yusuke , Kaseda Ryohei , Suzuki Yuya , Watanabe Hirofumi , Otsuka Tadashi , Yamamoto Suguru , Kaneko Yoshikatsu , Goto Shin , Terada Yasuhiko , Haishi Tomoyuki , Sasaki Susumu , Narita Ichiei 
Published: March 2023

Background:
Sodium magnetic resonance imaging can non-invasively assess sodium distribution, specifically sodium concentration in the countercurrent multiplication system in the kidney, which forms a sodium concentration gradient from the cortex to the medulla, enabling efficient water reabsorption. This study aimed to investigate whether sodium magnetic resonance imaging can detect changes in sodium concentrations under normal conditions in mice and in disease models such as a mouse model with diabetes mellitus. Methods: We performed sodium and proton nuclear magnetic resonance imaging using a 9.4-T vertical standard-bore super-conducting magnet. Results: A condition of deep anesthesia, with widened breath intervals, or furosemide administration in 6-week-old C57BL/6JJcl mice showed a decrease in both tissue sodium concentrations in the medulla and sodium concentration gradients from the cortex to the medulla. Further, sodium magnetic resonance imaging revealed reductions in the sodium concentration of the medulla and in the gradient from the cortex to the medulla in BKS.Cg-Leprdb+/+ Leprdb/Jcl mice at very early type-2 diabetes mellitus stages compared to corresponding control BKS.Cg-m+/m+/Jcl mice. Conclusions: The kidneys of BKS.Cg-Leprdb+/+ Leprdb/Jcl mice aged 6 weeks showed impairments in the countercurrent multiplication system. We propose the utility of 23Na MRI for evaluating functional changes in diabetic kidney disease, not as markers that reflect structural damage. Thus, 23Na MRI may be a potential very early marker for structures beyond the glomerulus; this may prompt intervention with novel efficacious tubule-targeting therapies.
INFLUENCE OF ZHEZHELEVSKY GRANITE QUARRY WASTEWATER ON THE FORMATION OF PLANT COMMUNITIES
Authors: Medvid O. , Kotsiuba I. , Khomiak I. 
Published: March 2023

The work is devoted to studying the impact of reclaimed water discharge on the dynamics and state of plant communities in the Zhezheliv granite quarry. The purpose of the study is to study the effect of return water on plant communities in the territory of the planned activity of the Private Joint-Stock Company "Zhezhelivsky Quarry". To achieve the goal, the following tasks were set: to investigate and classify plant groups in the territory of the planned activity of the Zhezheliv granite quarry; to establish the leading factors that change during the release of return waters; to predict the probable environmental impact of reclaimed waters on rare components of the biota. The territory of the Zhezheliv granite deposit is a typical anthropogenic landscape with a high level of anthropogenic transformation with a large share of fallows and shrubs. The biota of the studied territory consists of trivial, often synanthropic flora and fauna. They are represented by zonal
species common to this area. The vegetation of the studied area belongs to 11 classes, 12 orders, 14 unions, and 18 associations according to the Brown-Blanquet classification. No settlements, species of flora, and fauna, which are included in the Red Book of Ukraine, the Green Book of Ukraine, and annexes to the resolutions of the Berne Convention, were found on the territory of the deposit. Coastal ecosystems with autotrophic blocks in the form of vegetation classes Phragmiti- Magnocaricetea and Salicetea purpurea are affected by return water discharges. The discharge of reclaimed water from the Zhezheliv quarry stabilizes the existence of eutrophic coastal habitats with Phragmitetum australis and Typhetum angustifoliae vegetation associations. Also, by increasing the long-term wetting regime in the coastal areas, the condition of the Salici-Populetum association improves, which on the banks of rivers outside the zone of planned activity can acquire the status of a rare habitat (G1.11. Riverine Salix woodland). According to indicators of the dynamics of natural dynamics and the level of anthropogenic transformation, coastal habitats are euhemerobic ecosystems at the stage of transition from the herbaceous to the tree-shrub stage of the autogenic succession. Raising the water level due to the discharge of Reclaimed waters will contribute to their restoration and return to a less transformed state.
Ethical images and storytelling amidst differing expectations
Authors: Ogbu Oluchi G. 
Published: March 2023

Non-governmental organizations (NGOs) and non-profit organizations (NPOs) seek creative ways to raise awareness about issues and connect with donors to raise the resources required to address the needs of the communities they work with. This paper highlights ethical challenges and lessons learned in using images and storytelling in the development sector. This article resulted from a capacity-building event on the ethical use of images from development projects. It draws from the event itself, which was organized by the Manitoba Council for International Cooperation (MCIC) in 2022, and from conversations leading up to and following the event between the author, guest speakers, and additional stakeholders. The workshop was led by two representatives from MCIC member organizations. These two guest speakers shared experiences of using images and storytelling in their work in the Global South. Based on these conversations, this article highlights unequal power relations around the use of images from development projects, emphasizing organizations’ ethical challenges and how storytelling is (re)constructed amidst competing needs and expectations. The paper contributes to the ongoing discourse on ethical storytelling in fundraising and the need for decolonial storytelling.
Methodological approaches to assessing the quality of fish food products using sensory analysis: scientific review
Authors: Sytova M. V. 
Published: March 2023

The purpose of the work: to propose express methodological approaches for establishing the quality and ensuring the safety of fish food products based on the use of sensory analysis, based on the results of a scientific review.The methods that were used: a descriptive-analytical research method was used, a theoretical analysis of scientific, reference and methodological literature, as well as international and national regulatory documents in the field of organoleptics (sensorics) of food products was carried out.The element of novelty is the systematization of information on methodological approaches to assessing the quality of fish food products using sensory analysis, followed by the development of a methodological manual for use in the fisheries industry.Research results: determination of methodological system techniques for organoleptic (sensory) assessment of the quality of raw materials of aquatic origin and food products from it.Practical significance: the possibility of using operational approaches to assessing the quality and safety of fish food products as express methods. The research materials will be used in the preparation of a methodological manual on quality control and safety of fish food products using sensory analysis for use in the fish processing industry and trade, for the implementation of control and supervisory measures, as well as for use for educational purposes.
PROBLEMS OF TRANSITION TO INTERNATIONAL FINANCIAL REPORTING STANDARDS IN	GEORGIA
Authors: Teona Gigineishvili Teona Gigineishvili , Anzor Kuratashvili Anzor Kuratashvili 
Published: March 2023

Forming a proper system of accounting, reporting and auditing and bringing it in line with modern standards is a complex task for any country. Regarding this, Georgia is not an exception, as the work to improve the accounting system has been carried out since the 90s. Georgia is a developing country striving to get as close as possible to international standards in the context of globalization. This process has been particularly dynamic in the last 10 years, and the Law about Accounting, Reporting and Auditing legislated in 2016 is an important step, which aims to achieve financial transparency in the country and promote economic growth. The law was adopted in accordance with the directives of the Association Agreement with the European Union of 2014. The implementation of the new regulations in practice was connected with a number of problems, including:
	Lack of qualification in accountants and auditors;
	Low awareness of financial reporting standards;
	Difficulty in perceiving the provisions of IFRS standards;
	Low level of corporate culture;
	Corrections included in international standards not familiar to accountants ;
	Increasing cost of annual accounting services for companies.
The article examines the problems associated with the reform of accounting and auditing in Georgia, and offers relevant recommendations.
Keywords: Mandatory reporting, reform, international standards.
Modified Weighted Rayleigh Distribution and Its Bivariate Extension
Authors: Muhammed Hiba Zeyada , Abdelghany Hagar Mohamed 
Published: March 2023

In this paper, a new version of weighted Rayleigh distribution is constructed and studied. The statistical properties of the new distribution including the behavior of hazard and reversed hazard functions, moments, the central moments, moment generating function, mean, variance, coefficient of skewness, coefficient of kurtosis, median, mode, quantiles, stochastic ordering, exact information matrix and order statistics are also obtained, a simulation study and real data applications are performed. Furthermore, a bivariate extension of the new distribution called the bivariate modified Rayleigh (BMWR) distribution is introduced. The proposed bivariate distribution is of type Farlie–Gumbel–Morgenstern (FGM) copula. The BMWR distribution has modified weighted Rayleigh marginal distributions. The joint cumulative distribution function, the joint survival function, the joint probability density function, the joint hazard rate function and the statistical properties of the BMWR distribution are also derived.
Recognizing Tourmaline in Mineralized Porphyry Cu Systems: Textures and Major-Element Chemistry
Authors: Beckett-Brown Christopher E. , McDonald Andrew M. , McClenaghan M. Beth 
Published: March 2023

AbstractSamples of tourmaline supergroup minerals from seven mineralized porphyry systems (Cu, ±Au, ±Mo), including Casino (Yukon Territory, Canada), Coxheath (Nova Scotia, Canada), Donoso breccia-Los Bronces (Chile), Highland Valley Copper (British Columbia, Canada), New Afton (British Columbia, Canada), Schaft Creek (British Columbia, Canada), and Woodjam (British Columbia, Canada), were examined at a variety of scales to evaluate their relationships with mineralization. Data from paragenetic observations show that tourmaline supergroup minerals are generally early hydrothermal minerals that predate both mineralization and alteration (e.g., overgrown and crosscut by). In general, tourmaline supergroup minerals occur as sub- to euhedral crystals that are black in hand sample and can be found in a variety of mineralized settings (including breccias, veins, and disseminations) and alteration assemblages (including potassic, sodic-calcic, phyllic, propylitic, and argillic). As tourmaline supergroup minerals are physically and chemically resilient and occur throughout a given porphyry system, they are comprehensive recorders of the type and extent of various geochemical processes that exist during the complex genesis of these systems. Data from BSE imaging shows two primary zonation types: concentric and sector. These are interpreted to reflect conditions of rapid crystallization and disequilibrium. Results from SEM-EDS analyses show that most tourmaline supergroup minerals are dravite (∼80% of grains), with the remainder being primarily classified as schorl. Porphyry tourmaline supergroup minerals exhibit remarkably consistent ∼2.0 apfu Mg values (range: 0.69–2.89), with the majority of tourmaline supergroup minerals plotting along the oxy-dravite–povondraite trend, reflecting the predominance of the Al3+ ↔ Fe3+ substitution at constant Mg values. This pattern starts from the povondraite side (reflecting the oxidizing nature of early porphyry mineralizing fluids) and trends toward oxy-dravite as a porphyry system evolves, a feature that can, in turn, be interpreted to reflect relative emplacement depths. In mineralized porphyry systems, tourmaline supergroup minerals exhibit remarkably similar physical and chemical characteristics among the systems examined, suggesting that the source and geological processes must be extraordinarily similar. Unfortunately, these characteristics are not unique to porphyry systems and such observations should be integrated with additional data, such as trace element mineral chemistry, to effectively discriminate tourmaline supergroup minerals that have formed in porphyry systems.
Mineralogy of K-Rich Rocks from the Jharia Basin in Jharkhand: Indications for Cretaceous Lamproite Magmatism in Eastern India
Authors: Kaur Parminder , Patel Suresh C. , Mitchell Roger H. , Tappe Sebastian , Pruseth Kamal L. , Saini Jaspreet , Singh Amritpaul , Kaur Gurmeet 
Published: March 2023

AbstractPotassic dikes of early Cretaceous age (ca. 115 Ma) are emplaced in the Gondwana sedimentary basins of the Damodar valley in eastern India. Two potassic dikes in the Jharia basin (Ena and Moonidih) are characterized by the presence of olivine macrocrysts and phenocrysts, together with microphenocrysts of olivine, phlogopite–biotite, ilmenite, and apatite. These are set in a groundmass of phlogopite, apatite, ilmenite, spinel, and K-feldspar. Microphenocrystal and groundmass Al-Na-poor diopside and Al-poor Ti-rich amphibole are present in the Ena dike, whereas rutile, pyrite, galena, Zr-Ti-rich garnet, and quartz are minor phases occurring in the Moonidih dike. Two populations of relatively fresh olivine (I and II) are found in the Ena dike, in contrast to the Moonidih dike, where olivine macrocrysts and microphenocrysts are completely replaced by secondary magnesite, serpentine, and talc. The occurrence of fresh olivine in the Ena dike is reported for the first time in the Jharia basin. High forsterite (Fo) and Ni together with low Ca and Mn contents of the olivine-I macrocrysts suggest a mantle-derived xenocrystic origin. In contrast, the olivine-II population has high Ca and Mn, but relatively low Fo and Ni, suggesting a magmatic origin. Rimward decreasing Al and increasing Fe contents in zoned phlogopite crystals, plus the presence of groundmass spinel with compositions along the titanomagnetite trend (T2), indicate the lamproitic affinity of the K-rich dike rocks. Using a mineralogical-genetic classification scheme, the Ena and Moonidih dikes are classified as olivine-phlogopite-diopside-apatite-amphibole-feldspar lamproite and olivine-phlogopite-apatite-feldspar lamproite, respectively. We use the compositional variations of phlogopite, amphibole, apatite, and spinel to understand better the magmatic evolution and crystallization history of these potassic dikes. The Cretaceous lamproite magmatic event in eastern India was sourced from ancient metasomatized lithospheric mantle, with low-degree partial melting either triggered in the periphery of the impinging Kerguelen mantle plume head or induced by distant subduction.