bluuebunny/crossref_metadata_2025 huggingface dataset:
Deep multi-view feature fusion with data augmentation for improved diabetic retinopathy classification
Authors: Boualleg Yaakoub , Daouadi Kheir Eddine , Guehairia Oussama , Djeddi Chawki , Cheddad Abbas , Siddiqi Imran , Bouderah Brahim
Published: February 2025

Diabetic retinopathy (DR) is a leading cause of blindness worldwide, necessitating early detection to prevent severe visual impairment. Despite numerous proposed classification techniques, challenges persist due to the high parameter count of deep learning algorithms, imbalanced datasets, and limited performance. This study introduces a novel framework for DR classification that leverages multi-view deep features, multilinear whitened principal component analysis, tensor exponential discriminant analysis, synthetic minority oversampling technique, and deep random forest. We evaluated this architecture using the APTOS blindness dataset under a standard protocol. The results demonstrate that our architecture significantly improves classification accuracy, surpassing existing methods. Our contributions highlight a promising approach for enhancing DR classification performance.
Die Frage der Zurechnung. Ein Aspekt in der Kontroverse zwischen Kant und Reinhold über Willensfreiheit
Authors: Bondeli Martin
Published: February 2025

In his understanding of imputation, developed centrally in the Metaphysics of Morals, Kant favors the point of view of the (real and ideal) judge who applies the moral law to an acting person. Reinhold, on the other hand, when speaking of imputation, emphasizes the role of the autonomous and scrupulous acting person. This is a consequence of his view that free will is the faculty of a morally capable person to decide for or against the moral law. Considering the relevant insights of both positions, I argue that the notion of imputation should be understood in a multi-perspective manner and in the sense of a multi-place relation.
Ulrich, Kant und Kraus über Moralität und moralische Zurechenbarkeit
Authors: Imhof Silvan
Published: February 2025

Kant’s doctrine of the compatibility of the causal determinism of the natural world with causation through freedom brought a new approach to the debate on freedom and necessity that did not meet with everyone’s approval. In 1788, Johann Heinrich August Ulrich presented his Eleutheriologie, a comprehensive critique of Kant’s doctrine and at the same time a proposal for a deterministic moral theory. Kant read the Eleutheriologie, as evidenced by a few notes, and his friend Christian Jakob Kraus published a review of the work. Both responded to Ulrich’s objections by denying the possibility of a determinist moral theory and taking this as an argument in favour of the critical doctrine. In this article, I reconstruct Ulrich’s critique and his determinist moral theory as well as Kant’s and Kraus’s defences. In this early debate, both sides developed strategies that would recur in the following debate on the Kantian theory of freedom.
All-optical control of charge-trapping defects in rare-earth doped oxides
Authors: França Leonardo V. S. , Doshi Shaan , Zhang Haitao , Zhong Tian
Published: February 2025

Charge-trapping defects in crystalline solids play important roles in applications ranging from microelectronics, optical storage, sensing and quantum technologies. On one hand, depleting trapped charges in the host matrix reduces charge noise and enhances coherence of solid-state quantum emitters. On the other hand, stable charge traps can enable high-density optical storage systems. Here we report all-optical control of charge-trapping defects via optical charge trapping (OCT) spectroscopy of a rare-earth ion doped oxide (Y2O3). Charge trapping is realized by low intensity optical excitation in the 200–375 nm range. Charge detrapping or depletion is carried out by optically stimulated luminescence (OSL) under 532 nm stimulation. Using a Pr-doped Y2O3 polycrystalline ceramic host matrix, we observe charging pathways via the inter-band optical absorption of Y2O3 and via the 4f-5d transitions of Pr3+. We demonstrate effective control of the density of trapped charges within the Y2O3 matrix at ambient environment. These results point to a viable method for controlling the local charge environment in rare-earth doped crystals via all-optical means, and pave the way for further development of efficient optical storage technologies with ultrahigh storage capacity, as well as for the localized control of quantum coherence in rare-earth doped solids.
Prediction of hypoglycaemia in subjects with type 1 diabetes during physical activity
Authors: Moro Ornella , Sebastiani Giovanni
Published: February 2025

Introduction

Practicing physical activity (PA) on a regular basis is an important support for people with type 1 diabetes (T1D). However, exercise may induce in them hypoglycaemic events during or after it. One major consequence of this is that, to limit this risk, many people with T1D tend to avoid performing PA. The availability of modern continuous glucose-monitoring (CGM) devices is potentially a great asset for reducing the chances of hypoglycaemia (HP) due to PA. Several algorithms have already been proposed to predict HP in subjects with T1D. However, not many of them are specifically focused on HP induced by exercise. Among those, many involve a large number of covariates making the applicability more difficult, and none uses CGM values available during the training session.

Objectives

We study the problem of predicting hypoglycaemia events in subjects with T1D during PA. The final aim is to produce algorithms enabling a person with T1D to perform a planned PA session without experiencing HP.

Method

One of the two algorithms we developed uses the CGM data in an initial part of a PA session. A parametric model is fitted to the data and then used to predict a possible HP during the remaining part of the session. Our second algorithm uses the CGM value at the start of a session. It also relies on statistical information about the average rate of decrease of the aforementioned model, as derived from a previously measured CGM data during PA. Then, the algorithm estimates the probability of HP during the planned PA session. Both algorithms have a very simple structure and therefore are of wide applicability.

Results

The application of the two algorithms to a very large dataset shows their very good ability to predict HP during PA in people with T1D.
The Now-Defunct ResearchGate Score and the Extant Research Interest Score: A Continued Debate on Metrics of a Highly Popular Academic Social Networking Site
Authors: Teixeira da Silva Jaime A.
Published: February 2025

Academics might employ science social media or academic social networking sites (ASNSs), such as ResearchGate (RG), to showcase and promote their academic work, research, or published papers. In turn, RG provides usage statistics and performance metrics such as the now-defunct RG Score and the Research Interest Score (RIS) that offer a form of recognition about a researcher’s popularity, or how research is being used or appreciated. As part of a larger appreciation of how ASNSs contribute to knowledge sharing, in this article, the RG Score is reappraised, reflecting on why this metric may have been abandoned while reflecting on whether RIS is any better as an author-based altmetric. Similar to the RG Score, RG does not transparently indicate the precise equation used to calculate RIS, nor is any rationale provided for the weighting of its four factors (other reads, full-text reads, recommendations, and citations), which carry a relative weighting of 0.05, 0.15, 0.25, and 0.5, respectively. Ultimately, the responsible use of RG’s altmetrics lies in users’ hands, although caution is advised regarding their use to formally characterize or rank academics or research institutes.
Solving an isotropic grey matter tumour model via a heat transfer equation
Authors: Jamal Sameerah
Published: February 2025

The prevalence and growth characteristics of glioma tumours in human tissues are often modelled by a parabolic partial differential equation. It is essential to analyse tumour growth factors to establish mathematical benchmarks in understanding cancer progression. In this tumour study, we consider factors such as the tumour proliferation rates and the anisotropy of the spatial diffusion tensor. We aim to solve the resulting model together with its initial condition, to provide realistic biological predictions into the mechanism of cancer invasion, metastasis and life expectancy after diagnosis. The solutions are inspired by transformations that we propose to convert the tumour model into a heat equation. A key component in understanding the physics of cancer phenomena, is through obtaining precise solutions. Lie symmetries provide the mechanism to obtain exact solutions.
The negative indefinite nuddu ‘no one’ as a floating quantifier in Sicilian
Authors: Cruschina Silvio
Published: February 2025

This paper is concerned with a special use of the negative indefinite pronoun nuddu in Sicilian. Alongside its normal use as a negative pronominal quantifier (‘no one, nobody’), this element can be employed as a floating quantifier (‘none of us/you/them’). In this function, nuddu is not the subject of the sentence and, despite the semantic similarity, it cannot be analysed as the pronominal head of a partitive configuration. After presenting data on the diachronic development of this pronoun, which has resulted in inflectional loss, I discuss both syntactic and semantic arguments in favour of an adverbial analysis of this floating quantifier, according to which nuddu involves predicate modification.
Bipolar spectrum risk and social network dimensions in emerging adults: Two social sides?
Authors: Ibonie Stevi G. , Young Gerald , Ploe Montana L. , Mauss Iris B. , Alloy Lauren B. , Borelli Jessica L. , Bullock Ben , Holley Sarah R. , Jopling Ellen , Kamble Shanmukh , LeMoult Joelle , Mason Liam , Moriarity Daniel P. , Nusslock Robin , Okuma Amie , Rutledge Robb B. , Strauss Gregory , Villanueva Cynthia M. , Gruber June
Published: February 2025

Introduction: Bipolar spectrum disorders (BSDs) encompass severe and chronic mood disorders associated with social functioning difficulties. However, little work has examined more nuanced aspects of social functioning in BSDs. Methods: This investigation recruited 1,934 emerging adult college students to examine associations of self-reported bipolar spectrum risk (including both BSD risk and current mania and depressive mood symptoms) with social functioning with peers (including social network quantity and quality, social support, and social strain). Results: Self-reported BSD risk was associated with greater social strain, but also greater social network quantity (or size) and social support. Post-hoc results suggest that self-reported mood symptoms were similarly associated with increased social conflict, but also greater social network quantity (or size) and social support. Discussion: Taken together, these findings indicate a complex picture in which BSD risk and mood symptoms are associated with both social struggles as well as strengths. Implications for the involvement of social functioning in mood disturbance are discussed.
Analysis of Solar Power Plant Implementation as Renewable Energy in Learning at Wisuda Karya Vocational High School, Kudus
Authors: F. Shoufika Hilyana  , Rahayuningsih Margareta , Marianti Aditya
Published: February 2025

This article examines the implementation of Solar Power Plants (Id. Pembangkit Listrik Tenaga Surya - PLTS) as renewable energy sources in the learning process at Wisuda Karya Vocational High School, Kudus. The utilization of renewable energy, particularly solar power, has gained significant attention due to its sustainability and environmental benefits. The study aims to analyze the effectiveness and challenges of integrating PLTS into the curriculum at the vocational high school level. Through qualitative research methods, including interviews and observations, data were collected to assess the impact of PLTS implementation on students' learning experiences and environmental awareness. The findings indicate positive outcomes in terms of student engagement, practical knowledge acquisition, and environmental consciousness. However, several challenges were identified, such as initial investment costs, technical maintenance, and curriculum integration. Recommendations for addressing these challenges and optimizing PLTS implementation in vocational high school education are provided. This article contributes to the discourse on renewable energy education and offers insights for educators and policymakers interested in promoting sustainable practices in vocational learning environments.
ВЛИЯНИЕ ЦИКЛОВ ЗАМОРАЖИВАНИЯ - ОТТАИВАНИЯ НА СОПРОТИВЛЕНИЕ ДИНАМИЧЕСКИМ ВОЗДЕЙСТВИЯМ ФИБРОБЕТОНА
Authors: АЛЕКСЕЕВ К.Н. , ЗАХАРОВ Е.В.
Published: February 2025

Изучено влияние содержания базальтовой фибры диаметром 23 мкм на удельную энергоемкость разрушения бетона D2000 и легкого теплозащитного бетона D1000. Установлены закономерности воздействия знакопеременных температур на сопротивляемость фибробетона динамическим воздействиям. После 12 циклов (температура замораживания - 50 ±2 °С) затраты энергии на разрушение образцов бетона марки D2000 при объемном содержании фибры 2.7 % составили 1962 Дж/м2, что в 3.6 раза превышает энергоемкость разрушения образцов неармированной группы. Выявлено, что бетон на пористом демпфирующем заполнителе из вспученного вермикулита обладает более высокой сопротивляемостью к динамическим нагрузкам, чем бетон повышенной плотности. Энергоемкость разрушения теплозащитного бетона на основе вермикулита D1000 составила 5038 Дж/м2, мелкозернистого D2000 - 2326 Дж/м2. Энергоемкость разрушения неармированного бетона на основе вермикулита после трех циклов замораживания - оттаивания падает на 71 % c 5038 до 1473 Дж/м2, но при объемном содержании фибры 2.4 % энергоемкость разрушения фибробетона снижается на 9 % до 4608 Дж/м2. Полученные результаты могут способствовать повышению сопротивляемости торкрет-бетонных крепей ударным нагрузкам, в том числе после негативного воздействия циклов замораживания - оттаивания.

It is investigated how the content of basalt fiber with a diameter of 23 µm influences specific energy intensity of failure in concrete D2000 and in light heat-reflecting concrete D1000. The mechanisms of alternating temperature effects on dynamic impact resistance of fiber-reinforced concrete are determined. After 12 cycles (freezing temperature - 50 ± 2 °С), the energy cost of failure in the samples of concrete D2000 at the fiber volume ratio of 2.7% totals 1962 J/m2, which is 3.6 times higher than the energy intensity of failure in the samples of non-reinforced concrete. It is found that concrete with a porous absorbing aggregate made of expanded vermiculite possesses higher dynamic impact resistibility than high-density concrete. The energy intensity of failure was 5038 J/m2 in vermiculite-containing heat-reflecting concrete and 2326 J/m2 in fine-grain concrete D2000. The failure energy intensity in vermiculite-containing non-reinforced concrete after three freeze-thaw cycles drops by 71%, from 5038 to 1473 J/m2. At the fiber volume ratio of 2.4%, the energy intensity of failure in fiber-reinforced concrete decreases by 9%, to 4608 J/m2. These results can help increase the impact resistibility of shotcrete lining, including situations after the adverse effect of cyclic freeze-and-thaw.
ОБОСНОВАНИЕ ПРИМЕНЕНИЯ ПАРАМЕТРА ВЗАИМОДЕЙСТВИЯ ПРИ ВЫБОРЕ КОМБИНАЦИИ ФЛОТАЦИОННЫХ РЕАГЕНТОВ
Authors: СЕМЬЯНОВА Д.В. , КОНДРАТЬЕВ С.А.
Published: February 2025

Применение композиции собирателей - одно из перспективных направлений интенсификации флотационного процесса. При использовании смеси реагентов синергетический эффект от их взаимодействия проявляется не только на границе раздела фаз “минерал- жидкость”, но и на границе раздела “газ - жидкость”. Настоящая работа направлена на установление связи синергетического эффекта в понижении поверхностного натяжения комбинации катионного и анионного собирателей и синергизма этих реагентов во флотации. Проведены эксперименты по определению поверхностной активности физической формы сорбции при сочетании реагентов. Результаты сопоставлены с флотационной активностью комбинации и параметром взаимодействия компонентов смеси. Полученные данные послужат основой формирования расчетного метода подбора комбинации собирателей для флотационного обогащения.

Composition of collectors is one of the promising avenues in stimulation of flotation efficiency. When using a mix of reagents, their synergetic effect shows up not only at the mineral-liquid interface but at the gas-liquid interface as well. This study aims at connecting the synergetic effect of a cationic / anionic combination collector in reduction of surface tension with synergism of the surfactants in flotation. The tests were carried out to determine surface activity of physisorption in case of combination of these reagents. The results are comparted with the flotation activity and interaction parameter of the components of the combination. The findings can be a framework for the design approach to selecting combinations of collectors for flotation.
Caracterización de flavonoides y actividad antimicrobiana del extracto metanólico de hojas de Luma chequen (Molina) A. Gray
Authors: Fernández-Rebaza Gustavo Adolfo , Balladares Quintana Alfonso David , Soto-Tantaraico Edith Celia , Zeña-Chiara Elizabeth Nivia , Salazar-Salvatierra Maria Elena , Bonilla-Rivera Pablo Enrique
Published: February 2025

Introduction. The research of new alternatives to antimicrobial resistance has led to the exploration of medicinal plant extracts. Luma chequen has antimicrobial activity, but the secondary metabolites have not been identified. Objective. Characterize the chemical structures of flavonoids and to evaluate the antimicrobial activity of the methanolic extract of Luma chequen (Molina) A. Gray leaves. Methods. The methanolic extract of the leaves was prepared and its solubility with solvents of increasing polarity was evaluated, then a phytochemical screening was carried out, identifying different secondary metabolites. Thin layer chromatography (TLC) used standards and developers. The chemical structures of the flavonoids present in the methanolic extract were characterized by UV-Visible spectroscopy and displacement reagents. The antimicrobial activity was determined by the agar-well diffusion assay against Staphylococcus aureus, Bacillus subtilis, Escherichia coli and Pseudomonas  aeruginosa. Results. The extract was soluble in solvents of medium polarity. TLC detected the presence of phenolic compounds, flavonoids and alkaloids. UV-Visible spectroscopy identified five flavonoid chemical structures, including four flavones and one aurone. The extract presented broad-spectrum antimicrobial activity against gram-positive and gram-negative bacteria at concentrations of 50 to 100 mg/mL. Conclusions. Different secondary metabolites were detected by phytochemical screening and chromatography; in addition, five flavonoid structures were characterized by UV-visible spectrophotometry and diagnostic reagents. Likewise, the extract presented antimicrobial activity against Bacillus subtilis, Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli.
Endocarditis por Enterobacter cloacae en paciente con valvulopatíapreexistente y enfermedad periodontal
Authors: Cortez-Sandoval Maicol , Montesinos-Segura María Reneé , Vences Miguel A. , Olivares-López Joe C.
Published: February 2025

Infective endocarditis remains a potentially lethal disease with varied presentations. Enterobacter cloacae endocarditis has high mortality, partly due to antimicrobial resistance and limited clinical experience. We report a 57-year-old male with chronic heart failure and double aortic lesion, admitted with acute heart failure. Blood cultures were positive for E. cloacae. Despite antibiotics, fever spikes recurred, correlating with dental defocalization evaluations. Echocardiography revealed mitral valve vegetation. Dental necrosis and periodontitis were diagnosed. The patient received a 6-week antibiotic regimen and underwent dental treatment and Bentall surgery. After 3 years, clinical evolution was favorable. The case underscores the complexity of managing E. cloacae endocarditis, emphasizing the importance of timely antibiotics and surgical intervention.
Absceso tiroideo secundario a defecto de la hendidura branquial en un niño
Authors: Francia Rodas David , Rubio Sivina Silvana , Sullca Enriquez Mauro , Jump Salcedo Pamela , Atamari-Anahui Noé
Published: February 2025

Thyroid abscess is a rare complication because the thyroid gland is resistant to infections. We report an 8-year-old male child who presented with fever, odynophagia, and increased volume in the cervical region. In the left region of the neck, there was a soft erythematous tumor with pain on palpation. Imaging tests reported a collection compatible with thyroid abscess. He required surgical drainage and antibiotics. At seven months of follow-up, the ultrasound shows a branchial cleft defect. Thyroid abscess may be secondary to branchial cleft defect. This rare infection requires drainage in some cases and antibiotics due to endocrine and infectious complications that can compromise the patient's health. As in our case, follow-up is important to identify the cause.
Satisfacción y percepciones de estudiantes de medicina sobre una estrategia curricular de formación de competencias en investigación científica
Authors: Marcos Caballero Martín , Quispe Pérez Sebastián Jesús , Segami Makiya Jose Masayoshi , Romaní-Romaní Franco
Published: February 2025

Las escuelas de medicina han implementado estrategias curriculares para formar competencias en investigación, sin embargo, en Latinoamérica pocos estudios han evaluado dichas estrategias. Objetivo. Describir la satisfacción y las percepciones de los estudiantes de medicina en una universidad privada en Lima, Perú, que reciben una estrategia curricular de formación de competencias en investigación. Métodos. Realizamos un estudio transversal con un cuestionario virtual autoadministrado. Las asignaturas forman parte de dos componentes: la enseñanza orientada a la investigación y la enseñanza basada en la investigación. La satisfacción fue medida con una escala de 10 puntos y las percepciones con escala de Likert. Medimos los puntajes de la sumatoria de los ítems y los comparamos entre años de estudio. Resultados. Incluimos 273 estudiantes. Para el componente orientado, la mediana de satisfacción general fue 7 en las primeras 2 asignaturas y 8 en las 3 últimas.  La satisfacción general en las asignaturas del componente basado en investigación varió de 5 para clínica médica I a 9 para parasitología. En el componente orientado a la investigación hubo tendencia al incremento en el puntaje de percepciones (más favorables) a mayor año de estudio (K = 14,3; p = 0,007). En el componente basado en investigación, la asignatura de epidemiología tuvo una mayor mediana de puntaje, mientras que entre tesis I y II no hubo diferencias. Conclusiones. En las asignaturas teóricas la satisfacción y percepción mejoran a mayor año académico, sin embargo, en asignaturas que desarrollan un producto de investigación la reacción en el estudiante fue heterogénea.
Optimización de recuperación de Pb-Ag del proceso de flotación mediante la caracterización mineralógica de mineral polimetálico de la sierra norte del Perú
Authors: Valverde Díaz José David , Aramburú Rojas Vidal Sixto , Ortiz Barreto Jorge Alberto , Tiburcio Alva Rosa María , Aguilar Zevallos Sharon Elisa
Published: February 2025

A mineralogical characterization study to optimize lead-silver (Pb-Ag) recovery rate by flotation was conducted at three adits named Esmeralda, Orión, and Hércules. The variables investigated included the dosage of the reagent blend (AP-3418/AR-404), AR-242, and pH. At the Esmeralda adit, a recovery of 81.99% lead at a concentrate grade of 58.66% and 83.79% silver at a head grade of 310.64 oz/t was achieved using a dosage of 18 g/t reagent blend (AP-3418/AR-404), 5 g/t AR-242, and an optimum pH value of 11.5. At the Orión adit, a recovery of 81.71% lead at a concentrate grade of 61.6%, and 81.24% silver at a head grade of 85.39 oz/t were achieved using a dosage of 30 g/t reagent blend (AP-3418/AR-404), 5 g/t AR-242, and an optimum pH value of 10.5. Finally, at the Hércules adit, a recovery of 82.4% lead at a concentrate grade of 54.12%, and 80.88% silver at a head grade of 62.63 oz/t grade were achieved using a dosage of 30 g/t reagent blend (AP-3418/AR-404), 15 g/t AR-242, and a pH value of 11.5.
Manejo de residuos sólidos hospitalarios generados por los centros veterinarios de la ciudad de Machala, Ecuador
Authors: Pérez Rodríguez Jhonny Edgar , Iraizoz Barrios Ana María , Chávez Machado Jesús Ángel
Published: February 2025

This research paper is aimed at informing the results of a study conducted in 15 veterinarian centers located in Machala, El Oro province, Ecuador; in which physical, chemical, and microbiological properties of solid waste, that might have an impact on the environment and human health were analyzed. Random sampling, as well as systematic sampling was used in order to determine amount, humidity, density, and physical, physicochemical, microbiological composition of waste. The results allowed the researchers to determine the composition of waste generated by these veterinarian centers. Medical waste was found as predominant with 48%. It was also found the percentage of calorific capacity described as high in the majority of the veterinarian centers, as well as the microbiological characteristics, in which a high amount of mesophilic and pseudomona bacteria was established through leachate in all of the veterinary centers of the city.Said results will allow the development of strategies to improve the management of waste and biosecurity.
Recuperación de oro en minerales sulfurados de baja ley en la región de Casma
Authors: Aramburú Rojas Vidal , Azañero Ortiz Ángel , Calderón de Alvarado Julia , Gagliuffi Espinoza Pedro , Avilés Mera Pilar , Julca Vera Diego , Ortiz Barreto Jorge , Rivera Castillo Joel , Arauzo Gallardo Luís , Gutierrez Falcón Luís
Published: February 2025

The representative sample of low grade sulphide ore gold for this research study comes from the province of Casma Ancash department.The characterization of the sample was analyzed in the polarized light microscope, in the EAP. Geological Engineering at the National University of San Marcos (UNMSM), the results indicated the presence of the following mineralogical species such as Electrum, sphalerite, ilmenite, pyrite, hematite, goethite and bargains. Furthermore we found particles referred to gold, which are: Electrum-goethite, Electrum-Gangas, Electrum-goethite- Gangas.Based on the results of the characterization we realized metallurgical process like preconcentration Falcon performed in the concentrator, the results of the most representative process is 67.80%, obtaining in a granulometry of -200mesh, obtaining a concentrate grade of 16.20 g / TM, 57.04% of 41.60 radio recovery and concentration.With the tailing of the most representative test preconcentration, several metallurgical flotation tests were conducted, the most representative test was obtained, using 74.10 g / TM collector (AR1208), obtaining a concentrate grade of 11.36 g / TM, 92.27 and 88.11% recovery of concentration radio.Preconcentration and flotation,the concentrate of those process were joined and passed by remolienda, obtaining the Last granulometry of 80.27% -200 mesh with a head grade of 15.78 g / TM and with those results were realized metallurgical cyanidation process in bottled, but in different times, the most representative test is 72 hrs. cyanidation, yielding 87.94% gold recovery and a sodium cyanide consumption of 1.65 kg / TM.
Caracterización de POPs y PAHs en fragmentos plásticos: Estudio de Caso en el Callao
Authors: Herrera Amezquita Oscar , Castro Mandujano Olivio Nino , Zapata Gamarra Hernán Isaac , Pozo Gallardo Karla Andrea , Martiník Jakub , Audy Ondřej , Kukučka Petr , Příbylová Petra
Published: February 2025

This study evaluates microplastic pollution, persistent organic pollutants (POPs), and polycyclic aromatic hydrocarbons (PAHs) in the Bay of Callao, Peru. Sampling was conducted at six stations from Playa Pachacútec to La Punta, 500 meters from the coast. The collected microplastics were quantified, identifying adsorbed contaminant groups: PAHs, polychlorinated biphenyls (PCBs), DDT metabolites (DDX), pentachlorobenzene (PeCB), hexachlorobenzene (HeCB), and hexachlorocyclohexane (HCHs). The results showed 97.1204 items/m³ of microplastics, equivalent to 5,170,073.7321 items/km². Concentrations were 1749 ng/g for PAHs, 151.7 ng/g for PCBs, 311 ng/g for DDX, 13.0 ng/g for PeCB and HeCB, and 3.72 ng/g for HCHs. Compared to other studies, the Bay of Callao presents similar or higher contamination levels, especially in PAHs and DDX. This underscores the need for mitigation measures to reduce marine pollution and protect human health.
Anotaciones y etnografía histórica sobre Piura (1767) y los pueblos yungas registrados por un jesuita español, Mario Cicala, desterrado por el rey Carlos III
Authors: Espinoza Ortega Pavel , Espinoza Claudio César
Published: February 2025

This study provides a detailed perspective about northern Peru’s colonial history, highlighting local dynamics and the role of religious orders in documenting indigenous cultures. We focus on the work of Mario Cicala, a Jesuit who stayed in Piura in 1767 after being exiled by decree of King Charles III, and carefully documented the geography, social life, and customs of the Yunga people. His writings blend religious mission with ethnographic observation, offering unique insights into the interactions between social structures, religious practices, and eco nomic activities in the 18th century. This study facilitates a deeper understanding on the challenges faced by Piura society at that time, and how these local dynamics intertwined with a broader context of the Spanish colonial rule.
Streptococcus pyogenes okozta súlyos fertőzések halmozódása egy kórházi gyermekosztályra felvett betegek között
Authors: Lábodi Andrea , Balogh Tünde , Schnur János , Tálosi Gyula
Published: February 2025

A Bács-Kiskun Vármegyei Oktatókórház Gyermekosztályán 2023 tavaszán egy hónapon
belül négy súlyos állapotú gyermeket kezeltünk, akikben a betegség hátterében
Streptococcus pyogenes fertőzés állhatott. A kórokozó
súlyos, esetenként életveszélyes állapotot okozott. A betegek – egy kivételével
– ugyanarról a településről érkeztek, így felmerült ebben a közösségben az
invazív klón terjedésének lehetősége. Eseteinkben gyors klinikai állapotromlás
volt megfigyelhető. A nemzetközi szakirodalomban is fellelhető a különböző,
invazív A-csoportú Streptococcus (iGAS-) fertőzések időszakos
halmozódása, melyekért különböző klónok felelősek. Megfigyelhető ezen túl a
különböző víruskoinfekciók szerepe is. Közleményünk célja felhívni a figyelmet
az iGAS-fertőzések jelentőségére, tüneteire, a szepszis korai felismerésének
fontosságára, valamint arra, hogy a betegek időben a megfelelő progresszivitási
szintű intézetbe kerüljenek. Orv Hetil. 2025; 166(4): 154–159.
Procedury tworzenia prewencji prawnej poprzez instytucje compliance
Authors: Olszewski Jan
Published: February 2025

Celem artykułu jest przede wszystkim analiza prewencyjnej instytucji prawnej, jaką jest compliance. Może ona chronić każdy podmiot przed przypadkowymi nawet naruszeniami prawa przez organy wewnętrzne, ale także tworzyć zewnętrzne bariery ochronne. Jej wspólną cechą z amicus curiae jest obok oddziaływania prewencyjnego także to, iż wytwarzać może ona najbardziej kognitywną prezentację zagrożeń. W ten sposób jest to też tworzenie nowej wiedzy prawnej. W przypadku instytucji compliance autor znacznie dokładniej jednak omawia, jakie działania należy wykonać, aby praktycznie uruchomić tę powszechną już w Unii Europejską instytucję. Opisy ukierunkowane są tu również na wskazanie prawodawcom z parlamentu, jak w Polsce poprzez nowe instytucje prawne ułatwiać komercjalizację wiedzy i w większym zakresie pozyskiwać wiedzę ze środowisk naukowych.
Standardy Rady Europy w obszarze ochrony danych w świetle nowych wyzwań cywilizacyjnych
Authors: Siejak Paweł
Published: February 2025

Artykuł przedstawia działania podejmowane przez Radę Europy w zakresie ochrony danych. Zweryfikowano, czy działania te są tożsame z tymi podejmowanymi przez Unię Europejską, czy też mają charakter oryginalny. Podjęto próbę porównania, które rozwiązania są bardziej skuteczne.
Guniguni, Damdamin at Simbolismo sa mga Piling Tula ni Jose Corazon de Jesus: Disenyo ng Aralin
Authors: Porlas Ana Aubrey
Published: February 2025

Ang pag-aaral na ito ay nagsasagawa ng masusing pagsusuri sa mga piniling tula ni Jose Corazon de Jesus, na nakatuon sa ugnayan ng guniguni, damdamin, at simbolismo. Sa kabila ng mga naunang pag-aaral na tumutok sa tematikong nilalaman ng kanyang tula, may kakulangan sa detalyadong pagsusuri ng mga literar na kasangkapan at ang mga implikasyon nito. Layunin ng pananaliksik na ito na mas mapalalim ang pag-unawa sa kasanayan sa tula ni de Jesus at ang kahalagahan nito sa mensaheng tematikal. Ipinapakita ng pag-aaral ang paraan ng paggamit ni de Jesus ng personipikasyon at anthropomorphism upang bigyang-buhay ang mga bagay na walang buhay, na nagdadala ng emosyonal na tugon mula sa mga mambabasa. Binibigyang-diin din nito ang lungkot bilang pangunahing damdamin sa kanyang mga tula, na nag-uugnay sa kanya sa kanyang mambabasa. Bilang karagdagan, sinuri ang simbolikong kahalagahan ng mga pang-araw-araw na bagay sa kanyang mga tula, na nagbibigay ng malalim na kahulugan at lalim sa kanyang mga gawa. Nag-aalok ang pag-aaral ng isang estrukturadong plano ng aralin para sa pagsusuri ng tula, na naglalayong palalimin ang pag-unawa ng mga mag-aaral sa mga akda ni de Jesus. Sa pamamagitan ng pagsasama ng guniguni, damdamin, at simbolismo sa kurikulum, maaaring mapalawak ng mga guro ang kaalaman ng mga mag-aaral sa panitikang Pilipino. Sa huli, layon ng pananaliksik na ito na magbigay ng mas malalim na pag-unawa at pagpapahalaga sa mga tula ni de Jesus, na umaasa na makapagbigay inspirasyon sa mga iskolar, guro, at mambabasa.
Awiting Bisaya Sa Musika Ng Pilipinas (Vispop): Isang Mapanghamon Na Paglalakbay Sa Larangan Ng Komunikasyon At Pananaliksik Sa Wika At Kulturang Pilipino
Authors: Isulat Mitzi Riva , Orcullo Catherine
Published: February 2025

Ang wika ay isang mahalagang instrumento sa pakikipag-ugnayan at pagpapalaganap ng kultura. Kasama ng wika, ang musika ay isang paraan ng pagpapahayag ng damdamin at ideya. Sa pag-usbong ng Visayan Popular (VisPop), isang genre ng musika mula sa Kabisayaan, naging makulay ang pagtangkilik ng kabataan sa mga musikang Bisaya, bagamat mas popular ang banyagang musika. Dito pumapasok ang mahalagang papel ng guro sa pagpapalaganap ng wika at kultura sa pamamagitan ng mga awiting Bisaya. Ang pag-aaral na ito ay ginamitan ng kwalitatibong disenyo at thematic content analysis upang maipakita ang mensahe ng mga piling awiting Bisaya. Napili bilang kalahok ang mga Grade 11 na mag-aaral ng Pres. Carlos P. Garcia Technical Vocational School of Fisheries and Arts. Ang mga awit Bisaya ay may iba’t ibang mensahe tulad ng pag-ibig, pagkabigo, pagmamahal, at pagmamalaki sa pagiging Bisaya. Ipinakita sa mga awit ang malalim na pagpapahalaga sa pamilya, komunidad, at ugnayan ng mga tao. Iminumungkahi ng pag-aaral na isama ang mga awiting Bisaya sa kurikulum ng Komunikasyon at Pananaliksik upang mapalaganap ang pagpapahalaga sa sariling wika at musika ng Pilipinas.
„O cerkwiach chłop się pyta, któremu nulla o Bogu cognitio, nulla fides…”. Wyznaniowe motywy powstania Chmielnickiego w opiniach szlachty Rzeczypospolitej
Authors: Drozdowski Mariusz R.
Published: February 2025

The article is an attempt to answer the question of whether the nobility of the Republic of Poland was aware of the religious nature of the Cossack uprising of 1648. The proper lecture presents the views of the nobility on the religious motives underlying the armed resistance of the Cossacks against the Republic of Poland. These views had a fundamental influence on the nobility’s assessment of the nature of the Cossack uprising. A detailed analysis is presented, concerning such sources as correspondence, regional assembly instructions, occasional and journalistic literature, and the works of historiographers and memoirists. The analysis of the presented source material has proven that the nobility of the Republic of Poland was convinced of the religious overtones of the Cossack uprising. However, it should be clearly emphasized that this belief was based mainly on news reaching the nobility about the persecution of Catholic priests and the plundering of their temples by the Cossacks, and about the help provided to the Zaporozhians by the Orthodox clergy. The tendency of the Cossacks to put forward religious postulates, noticed by the nobility, was in itself devoid of – in their understanding – any deeper religious motivation and served primarily to implement the particular interests of the Zaporozhians.
Kozaczyzna jako czynnik w polskich sporach politycznych 1648–1649
Authors: Franz Maciej
Published: February 2025

In the years 1648–1649 the Polish-Lithuanian Commonwealth found itself on the verge of war with the Cossacks. The uprising of Bohdan Khmelnytsky led to a crisis in the state. The death of Władysław IV Vasa and the defeat of the Crown troops led to serious internal disputes in the Polish-Lithuanian state. The peace party clashed with the war party in the struggle for power. Both parties exploited the Cossack problem in this dispute. The Cossacks wanted to become a subject of Polish and Lithuanian politics. For the Polish and Lithuanian magnates, they were just one of the objects of political play. The years 1648–1649 were not stable in Polish politics and the Cossacks also took advantage of this.
Klerycy seminarium duchownego w Przemyślu w trakcie walk o twierdzę Przemyśl (1914–1915)
Authors: Dyrda Paweł
Published: February 2025

The subject of this article is the fate of the alumni of the Przemyśl Theological Seminary during the battles for the Przemyśl Fortress in the years 1914–1915. Faced with the advancing Russian troops, they decided to serve as orderlies in military hospitals. This service was extremely demanding due to the very difficult sanitary conditions, shortages of food, medicine, bandages, etc. Information about the life and work of the future priests during the successive sieges of the fortress is contained in the Chronicle of the Przemyśl Theological Seminary. It undoubtedly complements other accounts from this period.
Transnacionalizacão econômica vs autonomia das políticas nacionais: notas para a discussão de uma agenda de pesquisas
Authors: DAVID MAURICIO DIAS
Published: February 2025

RESUMO O processo de crescente internalização e integração dos mercados e da produção a nível mundial tem deixado um impacto considerável nas economias nacionais, deixando marcas na produção e no consumo, bem como na distribuição de rendimentos. Também tende a desafiar a forma como as políticas públicas são implementadas. Esta peça analisa esse cenário, visando compreender os diferentes cenários de transnacionalização do capital.
Produção de energia e modernização do vale do São Francisco
Authors: ANDRADE MANUEL CORREIA DE
Published: February 2025

RESUMO Este artigo busca analisar os métodos utilizados e os resultados alcançados pelo Estado na política de revitalização econômica do Vale do São Francisco. A importância deste vale resulta da sua situação geográfica; apesar de cortar uma região semiárida, o São Francisco é um rio abundante e perene. Por conta de suas quedas d’água, permite a construção de barragens, que serão utilizadas para produção de energia e também para o desenvolvimento da agricultura irrigada. A política governamental, que tem provocado o uso de verbas e utilização de técnicas modernas que não têm contribuído para melhores condições de vida da população local, também é analisada. Assim, há uma modernização sem desenvolvimento socioeconômico, tendo em vista o modelo utilizado pela intervenção do Estado.
Orçamento das estatais e controle político
Authors: MEREGE LUIZ CARLOS , NEDER RICARDO TOLEDO
Published: February 2025

RESUMO Este artigo analisa o papel e o financiamento das empresas estatais tendo em vista tanto a compreensão das funções clássicas do Estado e da transição democrática no Brasil quanto o desafio de ter uma tomada de decisão descentralizada.
Notas sobre a constituição do capitalismo na Rússia: da emancipação dos servos à grande indústria
Authors: OLIVEIRA FABRICIO AUGUSTO DE
Published: February 2025

RESUMO Este trabalho enfoca o período de transição em que se estabeleceram as principais condições para o modo de produção capitalista na economia russa. A escolha deste país deveu-se às características especiais do seu padrão de desenvolvimento. Na história econômica russa, ao contrário do caso britânico, o Estado e o capital estrangeiro foram os principais responsáveis pelas mudanças econômicas do país. Por outro lado, a formação de um sistema capitalista tem se baseado na grande propriedade fundiária e no empobrecimento dos camponeses, ao invés de uma forma realmente revolucionária baseada na economia camponesa. O estudo procurou apreender o processo histórico que gerou o mercado interno para o capitalismo e avaliar o papel tanto do Estado quanto do capital estrangeiro na formação da grande indústria que, de fato, já era uma realidade no final do século XIX.
Dualidade e ciclo longo
Authors: RANGEL IGNÁCIO M.
Published: February 2025

RESUMO A burguesia industrial assume o papel hegemônico que até então cabia ao latifúndio feudal. Esta é a grande transformação que ocorreu na sociedade brasileira nesta fase recessiva do ciclo de Kondratieff. São também analisados os principais eixos desta fase da crise econômica brasileira e apontados os dois principais aspectos que deverão nortear a fase de superação desta crise: a privatização dos serviços públicos e a maior intervenção do Estado no comércio exterior.
Uma nova contribuição para o debate sobre a demanda efetiva
Authors: LIMA JOÃO HERALDO , LEMOS MAURÍCIO BORGES
Published: February 2025

RESUMO O objetivo central do artigo é explorar algumas consequências da ausência da noção de tempo de giro (ou equivalente) na formulação da teoria da demanda efetiva. Inicia-se com uma tentativa de redefinir os esquemas de reprodução a fim de obter expressões que melhor sustentem a discussão pertinente. Em seguida, passa ao exame dos pressupostos que o princípio da demanda efetiva requer para operar e, finalmente, sugere a maneira como os conceitos desenvolvidos no livro II de O capital podem ser úteis para explicar as flutuações cíclicas do capitalismo.
A concepção keynesiana das crises econômicas e sua crítica com base em Marx
Authors: POLARI RÔMULO SOARES
Published: February 2025

RESUMO Este artigo analisa as limitações de explicação e solução oferecidas por Keynes, a respeito da crise econômica capitalista, à luz das ideias de Marx. Primeiramente, discute por que Keynes, mesmo apreendendo a vocação de crise do capitalismo, operando em condições de “laissez-faire”, não compreende suas causas, imanentes ao desenvolvimento das relações de produção capitalistas. Também tenta mostrar que somente em uma perspectiva não temporal, a solução keynesiana seria capaz de atenuar as contradições inerentes ao capitalismo e resolver os problemas decorrentes de sua crise. Por fim, desenvolve novas ideias na tentativa de apresentar como suficientemente firme a afirmação de que, a médio e longo prazo, os “remédios” keynesianos tendem a agravar as contradições que causaram a crise e criar novos problemas, incompatíveis com os interesses capitalistas.
Apontamentos sobre a conjuntura mundial: a “tempestade” da crise do capital
Authors: Barros Albani de
Published: February 2025

Resumo: Este artigo analisa a conjuntura mundial a partir do aprofundamento da crise do capital. Por meio de uma revisão bibliográfica, o texto aborda temas como a crise do capitalismo, políticas neoliberais, reestruturação produtiva, intensificação dos conflitos bélicos e a expansão da financeirização, com destaque para o crescimento do capital fictício e o aumento dos níveis de endividamento global. Também se examina o confronto entre Estados Unidos e China, explorando como essa rivalidade se insere e se intensifica no quadro de crises e transformações do sistema capitalista.
Análise da relação entre violência doméstica contra a mulher e tabagismo no Brasil
Authors: Mouzinho Isabela Tenório , Teixeira Evandro Camargos
Published: February 2025

Resumo: Este trabalho tem como objetivo analisar a relação entre a vitimização por violência doméstica sofrida pelas mulheres e a probabilidade de que elas fumem produtos do tabaco. Para tal, a partir dos dados da Pesquisa Nacional de Saúde (PNS) relativa ao ano de 2019, foram estimados modelos Probit. Os resultados indicaram que mulheres que relataram ter sido vítimas de violência doméstica têm probabilidade mais elevada de fumarem cigarros, charutos, cachimbos ou outros produtos do tabaco.
Azospirillum brasilense, urease inhibitor, and sulfur contributes on initial growth of wheat
Authors: Inacio K. A. M. , Abreu M. C. , Oliveira T. C. C. , Santos C. C. , Wagner F. E. , Mauad M.
Published: February 2025

Abstract Wheat (Triticum aestivum L.) is an annual crop with potential for cultivation expansion, requiring nutritional management that can favor the nitrogen use efficient and plant growth. We aimed to evaluate the initial growth of wheat in function of different nitrogen fertilization management, without or with Azospirillum brasilense and sulfur. The treatments consisted of the following management: CK (without cover fertilization), urea, urea with urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT), urea NBPT (80%) + ammonium sulfate (20%), without cover fertilizer + A. brasilense, urea + A. brasilense, urea NBPT + A. brasilense, and urea NBPT (80%) + ammonium sulfate (20%) + A. brasilense. Nutritional management contributed to phenotypic responses to shoot of the plants and culm diameter, especially compared to CK plants. Plants with NBPT + sulfur, without and with A. brasilense showed a higher chlorophyll index. CK plants and those only with A. brasilense had a lower number of tillers and numerically the shoot dry mass. Nutritional management with A. brasilense, urease inhibitor and sulfur contributed to the initial growth of wheat plants.
ANÁLISE DO FUNGICIDA CYMOXANIL POR ESPECTROFOTOMETRIA INFRAVERMELHA
Authors: Yajima Tomoko W. , Piedade J.R. , Piedade Maria F.
Published: February 2025

RESUMO Este trabalho descreve um método de análise para o fungicida cymoxanil, através da espectrofotomefria infravermelha. Normalmente, o cymoxanil é determinado por cromatografia Ifquida ou gasosa. Para efeitos quantitativos, utilizou-se a absorção 9,25gm, que corresponde aos dois grupos amina secundária -NH-. O método é exato, preciso e específico, desde que se faça a varredura total (2,5 a 15gm).