bluuebunny/crossref_metadata_2025_split huggingface dataset:
Some identities of degenerate harmonic and degenerate hyperharmonic numbers arising from umbral calculus
Authors: Kim Taekyun , Kim Dae San , Kim Hye Kyung 
Published: October 2023

Abstract
Hyperharmonic numbers were introduced by Conway and Guy (The Book of Numbers, Copernicus, New York, 1996), whereas harmonic numbers have been studied since antiquity. Recently, the degenerate hyperharmonic and degenerate harmonic numbers were introduced as their respective degenerate versions. The aim of this article is to further investigate some properties and identities involving the degenerate hyperharmonic numbers and degenerate harmonic numbers. Especially, we derive some identities by making use of the transfer formula for associated sequences from umbral calculus.
Randomized vector iterative linear solvers of high precision for large dense system
Authors: Sabelfeld Karl K. , Kireeva Anastasiya 
Published: October 2023

Abstract
In this paper we suggest randomized linear solvers with a focus on refinement issue to achieve a high precision while maintaining all the advantages of the Monte Carlo method for solving systems of large dimension with dense matrices. It is shown that each iterative refinement step reduces the error by one order of magnitude. The crucial point of the suggested method is, in contrast to the standard Monte Carlo method, that the randomized vector algorithm computes the entire solution column at once, rather than a single component. This makes it possible to efficiently construct the iterative refinement method. We apply the developed method for solving a system of elasticity equations.
Multi-faceted plasmonic nanocavities
Authors: Bedingfield Kalun , Elliott Eoin , Gisdakis Arsenios , Kongsuwan Nuttawut , Baumberg Jeremy J. , Demetriadou Angela 
Published: October 2023

Abstract
Plasmonic nanocavities form very robust sub-nanometer gaps between nanometallic structures and confine light within deep subwavelength volumes to enable unprecedented control of light–matter interactions. However, spherical nanoparticles acquire various polyhedral shapes during their synthesis, which has a significant impact in controlling many light–matter interactions, such as photocatalytic reactions. Here, we focus on nanoparticle-on-mirror nanocavities built from three polyhedral nanoparticles (cuboctahedron, rhombicuboctahedron, decahedron) that commonly occur during the synthesis. Their photonic modes have a very intricate and rich optical behaviour, both in the near- and far-field. Through a recombination technique, we obtain the total far-field produced by a molecule placed within these nanocavities, to reveal how energy couples in and out of the system. This work paves the way towards understanding and controlling light–matter interactions, such as photocatalytic reactions and non-linear vibrational pumping, in such extreme environments.
Vector vortex beams sorting of 120 modes in visible spectrum
Authors: Jia Qi , Zhang Yanxia , Shi Bojian , Li Hang , Li Xiaoxin , Feng Rui , Sun Fangkui , Cao Yongyin , Wang Jian , Qiu Cheng-Wei , Ding Weiqiang 
Published: October 2023

Abstract
Polarization (P), angular index (l), and radius index (p) are three independent degrees of freedom (DoFs) of vector vortex beams, which have found extensive applications in various domains. While efficient sorting of a single DoF has been achieved successfully, simultaneous sorting of all these DoFs in a compact and efficient manner remains a challenge. In this study, we propose a beam sorter that simultaneously handles all the three DoFs using a diffractive deep neural network (D2NN), and demonstrate the robust sorting of 120 Laguerre–Gaussian (LG) modes experimentally in the visible spectrum. Our proposed beam sorter underscores the considerable potential of D2NN in optical field manipulation and promises to enhance the diverse applications of vector vortex beams.
Legal Aspects of Futile Therapy in the Face of the End of Life
Authors: Świderska Małgorzata A. 
Published: October 2023

AbstractThis article presents legal issues related to therapeutic decisions made by doctors and to euthanasia and assisted suicide, which are prohibited and penalized in the Polish legal system. The paper refers to the terms ‘futile therapy’ and ‘over-zealous treatment’. It was also considered appropriate to refer to the concept of resuscitation, which can be understood narrowly as cardiopulmonary resuscitation or broadly as all activities aimed at potentially reversing the dying process. Completion of resuscitation as it is broadly understood means that (unless there has been recovery) it is considered a futile therapy.De lege latathere are no statutory regulations in the Polish legal system that could be directly related to the decision to abandon futile therapy in order to assess its legal legitimacy. The aim of the study is to present the problem of futile therapyde lege lataandde lege ferendain the face of the end of life. The article also presents the latest draft of legal regulation regarding futile therapy developed by an interdisciplinary team appointed by the Patients’ Rights Ombudsman in the form of ‘Standards of conduct in medical therapies used in the end-of-life period’.
Post-bariatric hypoglycaemia diagnosed during pregnancy
Authors: Duggan Dave , Riguetto Cinthia Minatel 
Published: October 2023

Summary
There is a scarcity of literature relating to post-bariatric hypoglycaemia (PBH) in pregnancy. Recurrent hyperglycaemia and hypoglycaemia can have significant consequences for both the mother and the developing fetus. We describe a case of a young pregnant woman who was diagnosed with symptomatic PBH in the second trimester of pregnancy using continuous glucose monitoring (CGM) 3 years after Roux-en-Y gastric bypass (RYGB) surgery. Instigating a low glycaemic index and complex carbohydrate diet significantly improved the patient’s glycaemic excursions. Given that this condition is likely underdiagnosed as a complication of RYGB surgery, a greater awareness of this complication is needed. Patients should be adequately consented pre-operatively for this relatively frequent late surgical complication to enable patients to identify symptoms of this condition at an early stage and seek medical treatment.

Learning points

PBH is an important diagnosis in patients post-RYGB surgery, particularly in women of childbearing age when consequences of both hyperglycaemia and hypoglycaemia during pregnancy can adversely affect both mother and the fetus.

Adverse outcomes of recurrent hypoglycaemia to the fetus can include small for gestational age, intrauterine growth restriction and possible impairment of beta cell function.

Providing adequate carbohydrate intake to allow growth of the fetus during pregnancy while also attempting to resolve both hyperglycaemia and hypoglycaemia associated with PBH by reducing the intake of simple carbohydrates and high glycaemic index foods can prove challenging.

Patients should be adequately consented for late complications of RYGB surgery such as PBH in order to allow early recognition of symptoms and enable prompt treatment.
Evaluation of various commercial lipid removal sorbents for the detection of 18 neonicotinoid insecticides and their metabolites in meat by liquid chromatography tandem mass spectrometry
Authors: Li Kai , Guo Liqiang , Tian Guoning , Xu Xiaojie , Li Yajing 
Published: October 2023

AbstractA highly accurate and precise method for the simultaneous detection of 18 neonicotinoids and their metabolites in meat was developed using liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). To improve the pretreatment step of the method, five different commercially available clean-up materials (including C18+PSA (primary secondary amine), Z-Sep (with Discover DSC-C18), EMR-Lipid, SHIMSEN QuEChERS, and Clean-up LPAS) were studied in the treatment of three meat matrices: pork, duck and yellow croaker. Based on the recovery data, we found that among the five purification materials, SHIMSEN QuEChERS was slightly more effective than the others for 18 neonicotinoids. Therefore, SHIMSEN QuEChERS was used as the purification sorbent, and the extraction solvents, extraction methods and chromatographic and mass spectrometric conditions were optimized. A matrix-matched calibration method was applied for quantification. In three different meat matrixes (pork, duck, and yellow croaker), all the target compounds showed good linearity, both with values of r2 > 0.995. The average recovery of all neonicotinoids ranges from 63.4 to 114.2% (pork), 63.0–113.2% (duck), and 63.9–110.5% (yellow croaker). Relative standard deviations were all <15% for intraday and interday precision. The values of limit of detection (LOD) and limit of quantification (LOQ) were, respectively, ranging from 0.04 to 1.0 μg kg−1 and 0.10 to 2.0 μg kg−1. Compared with previous reports, this method has advantage in LOQs, indicating that it it may be a preferred choice for the detection of neonicotinoid pesticides in meat samples.
Quality-grade analysis of velvet antler materials using ultra-weak delayed luminescence combined with chemometrics
Authors: Zhu Jianxun , Fan Shasha , He Min , Wang Nan , Xu Xiaoru , Pang Jingxiang , Yan Yu , Li Li , Yang Jiale , Chang Wen-Te , Chang Tung-Ti , Zhao Ye , Han Jinxiang , Sun Mengmeng 
Published: October 2023

The pharmacological properties of velvet antler, a well-known animal-derived traditional Chinese medicine material and functional food, are extensively acknowledged globally. However, there are significant restrictions on the quality standard and control system of velvet antler. The four quality grades of velvet antler slices taken from Cervus nippon Temminck and Cervus elaphus Linnaeus were evaluated in this study using delayed luminescence (DL) and chemical analysis of protein and amino acid content. Our results demonstrated a significant degree of consistency in the assessment impacts of the measurements for identifying velvet antler slices of different quality grades from Cervus nippon Temminck and Cervus elaphus Linnaeus. Additionally, it is possible to distinguish velvet antler slices of Rangifer tarandus from those of other deer species by exploiting DL parameters (i.e., I0, Beta, Tau, and T). Moreover, there is a strong correlation between the DL parameters and particular amino acids detected in velvet antler slices. As an innovative, quick, and systematic methodology, DL enables the examination of the overall property of various grades of velvet antler slices. The integrated assessment using DL and chemical components can give a novel method for determining the quality of animal-derived herbs and functional foods.
Central Adiposity Increases Risk of Kidney Stone Disease through Effects on Serum Calcium Concentrations
Authors: Lovegrove Catherine E. , Bešević Jelena , Wiberg Akira , Lacey Ben , Littlejohns Thomas J. , Allen Naomi E. , Goldsworthy Michelle , Kim Jihye , Hannan Fadil M. , Curhan Gary C. , Turney Ben W. , McCarthy Mark I. , Mahajan Anubha , Thakker Rajesh V. , Holmes Michael V. , Furniss Dominic , Howles Sarah A. 
Published: October 2023

Significance Statement
Kidney stone disease is a common disorder with poorly understood pathophysiology. Observational and genetic studies indicate that adiposity is associated with an increased risk of kidney stone disease. However, the relative contribution of general and central adipose depots and the mechanisms by which effects of adiposity on kidney stone disease are mediated have not been defined. Using conventional and genetic epidemiological techniques, we demonstrate that general and central adiposity are independently associated with kidney stone disease. In addition, one mechanism by which central adiposity increases risk of kidney stone disease is by increasing serum calcium concentration. Therapies targeting adipose depots may affect calcium homeostasis and help to prevent kidney stone disease.

Background
Kidney stone disease affects approximately 10% of individuals in their lifetime and is frequently recurrent. The disease is linked to obesity, but the mechanisms mediating this association are uncertain.

Methods
Associations of adiposity and incident kidney stone disease were assessed in the UK Biobank over a mean of 11.6 years/person. Genome-wide association studies and Mendelian randomization (MR) analyses were undertaken in the UK Biobank, FinnGen, and in meta-analyzed cohorts to identify factors that affect kidney stone disease risk.

Results
Observational analyses on UK Biobank data demonstrated that increasing central and general adiposity is independently associated with incident kidney stone formation. Multivariable MR, using meta-analyzed UK Biobank and FinnGen data, established that risk of kidney stone disease increases by approximately 21% per one standard deviation increase in body mass index (BMI, a marker of general adiposity) independent of waist-to-hip ratio (WHR, a marker of central adiposity) and approximately 24% per one standard deviation increase of WHR independent of BMI. Genetic analyses indicate that higher WHR, but not higher BMI, increases risk of kidney stone disease by elevating adjusted serum calcium concentrations (β=0.12 mmol/L); WHR mediates 12%–15% of its effect on kidney stone risk in this way.

Conclusions
Our study indicates that visceral adipose depots elevate serum calcium concentrations, resulting in increased risk of kidney stone disease. These findings highlight the importance of weight loss in individuals with recurrent kidney stones and suggest that therapies targeting adipose depots may affect calcium homeostasis and contribute to prevention of kidney stone disease.
Una revisión sistemática en cuanto a la efectividad de cumplimiento de responsabilidades alimentarias en favor del niño (a) o adolescente
Authors: Hernandez Reyes Andrea Katheryn , Ugaldez León Estefany Yashiri , Talavera Cubas Marco Antonio 
Published: October 2023

El incumplimiento de la obligación de pensión de alimentos, acarrea un problema lo que conlleva que muchos menores se vean perjudicados, puesto que los alimentos cubren las necesidades básicas del niño(a) y adolescente.
El objetivo fue investigar de qué manera ante el incumplimiento de la responsabilidad alimentaria se hace efectiva las sanciones, cabe señalar que, en el Perú, los alimentos son derechos indispensables para el menor, de acuerdo a las necesidades que este requiera, para ello el obligado es quien debe cumplir con su responsabilidad.
La metodología fue de revisión bibliográfica estructurada de enfoque cualitativo, con diseño multimodal de análisis temático fenomenográfico desde 30 artículos de las bases de open access de Scielo, Scopus, Wos, realizando una búsqueda desde el método prisma, utilizando el método híbrido inductivo-deductivo. El muestreo fue no probabilístico, con criterios de inclusión y exclusión desde una revisión sistemática de artículos encontrados en la base de datos de revistas indexadas de rigor científico, únicamente en español, con una antigüedad de diez años.
Los resultados y discusión señalan que, en diversas partes de Latinoamérica, incumplen con prestar alimentos, ya que se suscitan diversos factores, lo que hace que el obligado incumpla con su responsabilidad alimentaria.
Finalmente, se concluye que, en base al análisis de la problemática planteada, en muchas situaciones no se cumple con efectuar las sanciones impuestas al obligado tras incumplir con su deber de prestar alimentos al menor. Para ello es necesario que se efectué correctamente las sanciones, para que los niños(as) y adolescentes no se vean perjudicados en su desarrollo y bienestar.
La ausencia de guía estomatológica legal frente a la valoración de lesiones al sistema estomatognático en Instituto de Medicina Legal peruano
Authors: Puerta Jarama Pedro Antonio , Cueva-Quezada Nilton Isaias 
Published: October 2023

El objetivo de la presente investigación fue identificar la ausencia de una guía estomatológica legal frente a la valoración de lesiones en el sistema estomatognático. Instituto de medicina legal, 2021. Para lograr tal fin, se recurrió a la metodología del enfoque cualitativo, tipo básico y de diseño fenomenológico, con la técnica basado en estudio de caso; asimismo, se contó con participantes expertos en la materia, a quienes se les proporcionó una guía de entrevista; así mismo, se empleó la guía de análisis de fuente documental para analizar los requerimientos que exige la investigación y dos expedientes judiciales como estudio de caso. Los resultados del trabajo de investigación fueron constituidos a través de la guía de entrevista, de análisis documental, estudio de caso, trabajos previos y corrientes teóricas, con la finalidad de contrastar nuestros supuestos a través de la triangulación de los datos obtenidos. Finalmente se concluyó que la relación entre la ausencia de una guía estomatológica legal frente a la valoración de lesiones al sistema estomatognático. Instituto de Medicina Legal, 2021 es directa, toda vez que los operadores de justicia no cuentan con una guía estomatológica legal lo cual predispone a que se resuelvan los fallos sin un rigor científico, técnico y procedimental específico.
Termómetro de la Violencia familiar en grupos vulnerables. Un analisis comparado Perú – Argentina
Authors: Cryan Glenda , Vela-Vásquez Rodolfo , Ludeña Manco Diego Conrado , Cueva-Quezada Nilton Isaias 
Published: October 2023

La pandemia del coronavirus y las medidas de aislamiento establecidas para prevenir los contagios masivos han cambiado la vida cotidiana de niños, niñas, adolescentes y mujeres, limitándose los vínculos que se establecen habitualmente por fuera del seno endogámico: amigos, docentes, familiares cercanos, profesionales de la salud, entre otros. Hoy compete un replanteamiento de la percepción de la violencia familiar que parte desde indagar las diferencias en la conceptualización de la violencia familiar y sus implicancias legales, sociales, económicas y culturales desde un análisis comparado para así instituir un termómetro que interprete la violencia en grupos vulnerables en su real contexto, proponiendo construir un instrumento desde una perspectiva interdisciplinaria y de políticas públicas que apunten a detectar, prevenir e intervenir con eficiencia ante este tipo de situaciones, evitando además cualquier sesgo de revictimización. La presente investigación es de enfoque cualitativo y tiene como propósito realizar un análisis fenomenológico desde un artículo original corto, de tipo básica, , con nivel descriptivo interpretativo, puntualizando las características adjetivas de la fenomenología presentada.
Temperature effect in the energy degradation of photovoltaic power system
Authors: AJ ALMAHDAWI Yasseen , KH ABBAS Mohammed , AL-SAMARI Ahmed , ALDABASH Nazar , HAFEDH Saadoon Abdul 
Published: October 2023

The modelling of output power for the photovoltaic system is essential for system design and local resource prediction. Accurate photovoltaic power modelling the foremost vital issue is systems efficiency analysis. The temperature plays the main role in the energy degradation of the photovoltaic systems, especially in the host sites. In this paper, experimental and theoreti-cal investigation into the photovoltaic module energy degradation due to temperature effects. This work objectives to investigate the photovoltaic power generated due to the ambient tem-perature effect. The presented results show that the ambient temperature has positive effects on the photovoltaic module energy production during the winter period and negative effects during the summer period. For the proposed photovoltaic system with a capacity of 2.97 kWp the expected theoretical annual energy production by about 554.01 kWh while the annual experiment production was l493.73 kWh. The novelty of the work is to estimate the energy losses due to the ambient temperature effect on the photovoltaic energy production.
Evaluation of collum angle of maxillary incisors on impacted vs non impacted canine Side: A CBCT analysis
Authors: Nazir Sheikh Zahid , Mushtaq Mohammad 
Published: October 2023

The angle which is formed between the crown axis and root axis of an upper central incisor is called collum angle and this angle serves as an important morphological feature for normal development of the dentition and plays a vital role during diagnosis and treatment planning and may vary in different malocclusions i.e; skeletal and dental malocclusions. To quantify and compare the collum angle (crown root angulation) of maxillary incisors (central and lateral incisor) in subjects with unilateral permanent maxillary canine impaction between the impacted and non impacted side using Cone Beam Computed Tomography (CBCT). Thirty subjects with unilateral permanent maxillary canine impaction who had to undergo fixed orthodontic treatment were selected and their CBCT images were analysed. The collum angle of maxillary central and lateral incisor on impaction and non impaction side was measured using CBCT imaging. Descriptive statistical analysis was carried out and the mean±standard deviation was calculated and comparison between two sides was made by using paired t-test and a p value of less &#60;0.05 was considered as statistically significant. The collum angle of central and lateral incisor between impacted and non impacted side were averaged. Thus, the mean±standard deviation and standard error of the collum angle (n-30) were calculated for maxillary central incisor and lateral incisor on both sides. The mean±sd of the collum angle of maxillary central incisor on impacted and non impacted side was 1.39±7.16 and 2.33±5.86 respectively with a p value of 0.282, while as the mean±sd of the collum angle of maxillary lateral incisor on impacted and non impacted side was 3.09±6.26 and 5.24±5.28 respectively with a p value of 0.060 which was considered as statistically insignificant between the two sides. A decrease in collum angle was found on impaction side with a more decreased value for lateral incisor when comparison was made with non impaction side, but no statistically significant difference was found.
Treatment of an adolescent patient with class ii division 1 malocclusion by extraction and forsus fatigue resistant device: Case report
Authors: Younus A Abrar , Ahmed Nausheer , Shetty Shreya K 
Published: October 2023

Treatment of a patient presenting with Class II malocclusion requires careful diagnosis and treatment planning to resolve esthetic, occlusal, and functional problems. Over the decades numerous treatment options have been presented to treat class II malocclusions. Orthodontic camouflage being a cost-effective, non-surgical treatment option has been well accepted by patients to mask their underlying skeletal discrepancy, while providing acceptable facial esthetics and occlusion.This case report presents the treatment by four first premolar extractions followed by Forsus Fatigue Resistant Device (FFRD) therapy in a 14 years old female patient with skeletal Class II base due to the retrognathic mandible, proclined upper and lower front teeth with an overjet of 5 mm, and unwilling for surgery in the future.After undergoing the treatment, an optimal static and functional occlusion was attained, yielding a favorable outcome.
Las redes sociales y la importancia de la mediación política en el comercio en vía pública
Authors: Silva Londoño Diana Alejandra 
Published: October 2023

El presente artículo muestra la pertinencia del estudio de las redes sociales en el comercio en vía pública, en especial de las establecidas con el sistema–político institucional, pues ellas posibilitan el uso de espacios que, en principio, son de carácter público. A través del análisis cualitativo, se revelan algunas de las principales características de este tipo de redes, lo mismo que su papel central en la mediación política. Este último, lejos de ser privativo del comercio en vía pública, es un rasgo principal de la cultura política mexicana.