bluuebunny/crossref_metadata_2025 huggingface dataset:
Gravitational circulation in straits and estuaries
Authors: Hansen Donald V. , Rattray Maurice
Published: December 2021

A coupled set of partial differential equations and associated boundary conditions is written to describe circulation and salt-flux processes for estuaries in which turbulent mixing results primarily from tidal currents. Similarity solutions, motivated by characteristic salinity distributions observed in estuaries, are obtained for this set of equations and are compared with observational data. The circulation is separated into modes analogous to the barotropic, baroclinic, and Ekman modes of oceanic circulation. The salinity distribution, although coupled to the velocity distribution, is found to vary independently of it as well. The theoretical results are discussed in regard to: (i) correlation between the vertical variations of mean velocity and salinity, (ii) the role of this correlation in maintaining the steady-state salinity distribution in estuaries, and (iii) some implications for computations of flushing and dispersion of contaminants.
Indirect quantitative analysis of soluble solid content in citrus by the leaves using hyperspectral imaging combined with machine learning
Authors: Guo Lianbo , Hunag Weihua , Zheng Weinan , Chen Feng , Wang Weiliang , Zhang Deng , Hu Zhenlin , Chu Yanwu
Published: December 2021

Due to the effect of bagging on fruit growth, non-destructive and in situ soluble solid content (SSC) in citrus detection remains a challenge. In this work, a new method for accurately quantifying SSC in citrus using hyperspectral imaging of citrus leaves was proposed. Sixty-five Ehime Kashi No. 28 citruses with surrounding leaves picked at two different times were picked for the experiment. Using the principal components analysis combined with Gaussian process regression model, the correlation coefficients of prediction-real value by citrus and its leaves in cross-validation were 0.972 and 0.986, respectively. In addition, the relationship between citrus leaves and SSC content was further explored, and the possible relationship between chlorophyll in leaves and SSC of citrus was analyzed. Comparing the quantitative analysis results by citrus and its leaves, the results show that the proposed method is a non-destructive and reliable method for determining the SSC by citrus leaves and has broad application prospects in indirect detection of citrus.
Accurate internal deformation measurement of an indentation test using micro-CT and self-adaptive digital volume correlation
Authors: Zou Xiang , Wang Bo
Published: December 2021

Mechanical indentation testing is a widely used technique for determining local mechanical properties of materials. Accurate measurement of internal deformation in the indentation test is necessary for further study of material properties. Therefore, an in situ experimental measurement strategy combining micro-CT imaging and self-adaptive digital volume correlation (SA-DVC) is proposed. Unlike conventional DVC, SA-DVC can automatically identify the optimal subvolume size for each calculation point, which can effectively minimize measurement errors. The efficacy of the proposed method is first verified by the simulated indentation experiment. Then, it is used to analyze the deformation of epoxy resin composite in a real indentation experiment. Measurement results indicate that the proposed method can estimate three-dimensional displacement and strain fields with enhanced accuracy, and further application of the obtained measurement results on material parameter identification and stress field reconstruction is expected.
Purely spectrometric method to measure the bias refractive index including its dispersion and the swelling or shrinking of holographic materials
Authors: Altmeyer S. , Matrisch J. , Bauer N. , Frensch M.
Published: December 2021

A novel method to determine the application relevant parameters of holographic film materials is presented. The procedure is capable of measuring the refractive index

n
0

of the unrecorded material at the recording wavelength

λ
0

, the bias refractive index

n
(
λ
)

of the recorded medium including its dispersion, and the shrinkage parameter

S

. Measurements rely on spectrometer data only, i.e., there is no necessity for Bragg angle determination. Experimental data for the holographic film material HX 200 from Covestro are presented. Theoretical analysis suggests that the method is equally well suited to determine the relevant temperature dependencies, too.
A fusion data security protection scheme for sensitive E-documents in the open network environment
Authors: Liu Lei , Cao Mingwei , Sun Yeguo
Published: December 2021

E-documents are carriers of sensitive data, and their security in the open network environment has always been a common problem with the field of data security. Based on the use of encryption schemes to construct secure access control, this paper proposes a fusion data security protection scheme. This scheme realizes the safe storage of data and keys by designing a hybrid symmetric encryption algorithm, a data security deletion algorithm, and a key separation storage method. The scheme also uses file filter driver technology to design a user operation state monitoring method to realize real-time monitoring of user access behavior. In addition, this paper designs and implements a prototype system. Through the verification and analysis of its usability and security, it is proved that the solution can meet the data security protection requirements of sensitive E-documents in the open network environment.
Mindfulness predicts less depression, anxiety, and social impairment in emergency care personnel: A longitudinal study
Authors: Westphal Maren , Wall Melanie , Corbeil Thomas , Keller Dagmar I. , Brodmann-Maeder Monika , Ehlert Ulrike , Exadaktylos Aristomenis , Bingisser Roland , Kleim Birgit
Published: December 2021

Medical personnel working in emergency rooms (ER) are at increased risk of mental health problems and suicidality. There is increasing evidence that mindfulness-based interventions can improve burnout and other mental health outcomes in health care providers. In contrast, few longitudinal prospective studies have examined protective functions of dispositional mindfulness in this population. The objective of this study was to examine whether mindfulness prospectively predicts anxiety, depression, and social impairment in a sample of emergency care professionals. The authors administered online surveys to ER personnel prior to work in ER, and at 3 and 6 months follow up. Participants were 190 ER personnel (73% residents, 16% medical students, 11% nurses). Linear mixed effects regression was used to model longitudinal 3-month and 6-month follow up of depression, anxiety, and social impairment. Predictors included time-varying contemporaneous work stressors, perceived social support at work and life events, and baseline dispositional mindfulness, demographics, and workplace characteristics. Mindfulness indexed when starting ER work predicted less depression, anxiety, and social impairment 6 months later. Mindfulness remained a strong predictor of mental health outcomes after controlling for time-varying stressful events in emergency care, negative life events, and social support at work. Mindfulness moderated the adverse impact of poor social support at work on depression. To our knowledge, this is the first longitudinal study to show that mindfulness prospectively and robustly predicts anxiety, depression, and social impairment. Results support the role of mindfulness as a potential resilience factor in at-risk health care providers.
CANDIDATE: A tool for generating anonymous participant-linking IDs in multi-session studies
Authors: Sandnes Frode Eika
Published: December 2021

Background

To ensure the privacy of participants is an ethical and legal obligation for researchers. Yet, achieving anonymity can be technically difficult. When observing participants over time one needs mechanisms to link the data from the different sessions. Also, it is often necessary to expand the sample of participants during a project.

Objectives

To help researchers simplify the administration of such studies the CANDIDATE tool is proposed. This tool allows simple, unique, and anonymous participant IDs to be generated on the fly.

Method

Simulations were used to validate the uniqueness of the IDs as well as their anonymity.

Results

The tool can successfully generate IDs with a low collision rate while maintaining high anonymity. A practical compromise between integrity and anonymity was achieved when the ID space is about ten times the number of participants.

Implications

The tool holds potential for making it easier to collect more comprehensive empirical evidence over time that in turn will provide a more solid basis for drawing reliable conclusions based on research data. An open-source implementation of the tool that runs locally in a web-browser is made available.
Predicting hospital readmission risk: A prospective observational study to compare primary care providers’ assessments with the LACE readmission risk index
Authors: Walji Sakina , McIsaac Warren , Moineddin Rahim , Kalia Sumeet , Levy Michelle , Tu Karen , Bell Chaim M.
Published: December 2021

Purpose

This study aims to determine if the primary care provider (PCP) assessment of readmission risk is comparable to the validated LACE tool at predicting readmission to hospital.

Methods

A prospective observational study of recently discharged adult patients clustered by PCPs in the primary care setting. Physician readmission risk assessment was determined via a questionnaire after the PCP reviewed the hospital discharge summary. LACE scores were calculated using administrative data and the discharge summary. The sensitivity and specificity of the physician assessment and the LACE tool in predicting readmission risk, agreement between the 2 assessments and the area under receiver operating characteristic (AUROC) curves were calculated.

Results

217 patient readmission encounters were included in this study from September 2017 till June 2018. The rate of readmission within 30 days was 14.7%, and 217 discharge summaries were used for analysis. The weighted kappa coefficient was 0.41 (95% CI: 0.30–0.51) demonstrating a moderate level of agreement. Sensitivity of physician assessment was 0.31 (95% CI: 0.22–0.40) and specificity was 0.80 (95% CI: 0.77–0.83). The sensitivity of the LACE assessment was 0.42 (95% CI: 0.25–0.59) and specificity was 0.79 (95% CI: 0.73–0.85). The AUROC for the LACE readmission risk was 0.65 (95% C.I. 0.55–0.76) demonstrating modest predictive power and was 0.57 (95% C.I. 0.46–0.68) for physician assessment, demonstrating low predictive power.

Conclusion

The LACE index shows moderate discriminatory power in identifying high-risk patients for readmission when compared to the PCP’s assessment. If this score can be provided to the PCP, it may help identify patients who requires more intensive follow-up after discharge.
Serum sodium on admission affects postoperative in-hospital mortality in acute aortic dissection patients
Authors: Huang Pengfei , Wang Hongyan , Ma Dong , Zhao Yongbo , Liu Xiao , Su Peng , Zhang Jinjin , Ma Shuo , Pan Zhe , Shi Juexin , Hou Fangfang , Zhang Nana , Zheng Xiaohui , Liu Nan , Zhang Ling
Published: December 2021

Background

Acute aortic dissection (AAD) is very fatal without surgical treatment. Higher serum sodium can increase in-hospital mortality of many diseases; however, the effect of serum sodium on postoperative in-hospital mortality in AAD patients remains unknown.

Methods

We collected a total of 415 AAD patients from January 2015 to December 2019. Patients were classified into four categories (Q1-Q4) according to the admission serum sodium quartile. The cox proportional hazards model evaluated the association between serum sodium and in-hospital mortality. All-cause in-hospital mortality was set as the endpoint.

Results

By adjusting many covariates, cox proportional hazards model revealed the in-hospital mortality risk of both Q3 and Q4 groups was 3.086 (1.242–7.671, P = 0.015) and 3.370 (1.384–8.204, P = 0.007) respectively, whereas the risk of Q2 group was not significantly increased. Univariate and multiple Cox analysis revealed that Stanford type A, serum glucose, α-hydroxybutyrate dehydrogenase and serum sodium were risk factors correlated with in-hospital death in AAD patients.

Conclusion

The study indicates that the admission serum sodium of AAD patients has a vital impact on postoperative hospital mortality.
Key determinants of deposits volume using CAMEL rating system: The case of Saudi banks
Authors: AL-Najjar Dania , Assous Hamzeh F.
Published: December 2021

CAMEL is considered one of the well-known banking rating systems used to build a proper bank ranking. In our paper, we investigate the CAMEL rating for Saudi banks, which is considered the second largest banking sector in GCC. The Saudi banking sector consists of 11 banks and is the leading sector in the Saudi stock index (TASI). In this research, we aim to determine the ranking of Saudi banks according to CAMEL composite and CAMEL overall ratings and explore the effects of these ratings on banks’ total deposits for the period from 2014 to 2018. The methodology involves four phases. In the first phase, we calculate the key financial ratios of CAMEL’s composites for each bank. In the second phase, we rank the banks from 1 to 11 to each one of CAMEL’s composites for each bank per year. In the third phase, we rank Saudi banks according to CAMEL composite and CAMEL overall. Finally, in the fourth phase, we run a regression model using CAMEL financial ratios rank as independent variable and banks’ total deposits as a dependent variable. Using the stepwise regression method, the results indicated that the best regression model has an adjusted R2 of 73.4% and a standard error of around 0.58. The results further indicated that capital measured by CAR, management as an efficiency ratio, earning with ROE proxy, and liquidity as loans to deposits have positive effects on banks’ total deposits. Meanwhile, earnings as net interest income to net revenue and liquidity calculated by CASA have a negative effect on banks’ total deposits. Finally, asset quality ratios and the rest of the ratios have no significant effect on banks’ total deposits.
Bioinformatics analysis for the role of CALR in human cancers
Authors: Li Yijun , Liu Xiaoxu , Chen Heyan , Xie Peiling , Ma Rulan , He Jianjun , Zhang Huimin
Published: December 2021

Cancer is one of the most important public health problems in the world. The curative effect of traditional surgery, radiotherapy and chemotherapy is limited and has inevitable side effects. As a potential target for tumor therapy, few studies have comprehensively analyzed the role of CALR in cancers. Therefore, by using GeneCards, UALCAN, GEPIA, Kaplan-Meier Plotter, COSMIC, Regulome Explorer, String, GeneMANIA and TIMER databases, we collected and analyzed relevant data to conduct in-depth bioinformatics research on the CALR expression in Pan-cancer to assess the possibility of CALR as a potential therapeutic target and survival biomarker. We studied the CALR expression in normal human tissues and various tumors of different stages, and found that CALR expression was associated with relapse free survival (RFS). We verified the expression of CALR in breast cancer cell lines by vitro experiments. Mutations of CALR were widely present in tumors. CALR interacted with different genes and various proteins. In tumors, a variety of immune cells are closely related to CALR. In conclusion, CALR can be used as a biomarker for predicting prognosis and a potential target for tumor molecular and immunotherapy.
Genomic prediction using low-coverage portable Nanopore sequencing
Authors: Lamb Harrison J. , Hayes Ben J. , Randhawa Imtiaz A. S. , Nguyen Loan T. , Ross Elizabeth M.
Published: December 2021

Most traits in livestock, crops and humans are polygenic, that is, a large number of loci contribute to genetic variation. Effects at these loci lie along a continuum ranging from common low-effect to rare high-effect variants that cumulatively contribute to the overall phenotype. Statistical methods to calculate the effect of these loci have been developed and can be used to predict phenotypes in new individuals. In agriculture, these methods are used to select superior individuals using genomic breeding values; in humans these methods are used to quantitatively measure an individual’s disease risk, termed polygenic risk scores. Both fields typically use SNP array genotypes for the analysis. Recently, genotyping-by-sequencing has become popular, due to lower cost and greater genome coverage (including structural variants). Oxford Nanopore Technologies’ (ONT) portable sequencers have the potential to combine the benefits genotyping-by-sequencing with portability and decreased turn-around time. This introduces the potential for in-house clinical genetic disease risk screening in humans or calculating genomic breeding values on-farm in agriculture. Here we demonstrate the potential of the later by calculating genomic breeding values for four traits in cattle using low-coverage ONT sequence data and comparing these breeding values to breeding values calculated from SNP arrays. At sequencing coverages between 2X and 4X the correlation between ONT breeding values and SNP array-based breeding values was > 0.92 when imputation was used and > 0.88 when no imputation was used. With an average sequencing coverage of 0.5x the correlation between the two methods was between 0.85 and 0.92 using imputation, depending on the trait. This suggests that ONT sequencing has potential for in clinic or on-farm genomic prediction, however, further work to validate these findings in a larger population still remains.
Organization and Representation of Musical Information (ORMI) in Portugal
Authors: Baptista António , Guardado da Silva Carlos
Published: December 2021

This article presents the results of a documentary research regarding the current state of Organization and Representation of Musical Information (ORMI) in Portugal. Many authors describe the national scene of ORMI as very shortcoming, due to the usual difficulties: time vs. detail in the description and lack of knowledge of musical language by the technicians Information professionals.

A survey of the monographs and articles as of 2011 that make a critical revision to the works of ORMI of several institutions was made, aiming to: 1) perceive their current state and 2) understand its strengths and weaknesses. We identified in these studies the analytic categories to create afterwards a classification structure by disciplinary areas, which shows semantic, structural and quality heterogeneity. The majority of Finding Aids are being produced by musicology projects with structures that respond to their information representation needs.
(In)Visible (a)sexuality? Media discourses and representations on asexuality in Portugal
Authors: Alcaire Rita
Published: December 2021

This article presents the result of a multimodal analysis of the representation of asexuality in Portuguese mainstream media. In Portugal, the media played a pivotal role in the relationship between the newly formed Portuguese asexual community and the wider audience. Media attention on asexuality in Portugal generated a discussion on how asexual people are represented, but also on social representations of sexual diversity in general. As a result, the Portuguese asexual community and LGBTQI+ movement were impelled to reflect on their activity and on the public image they wanted to send out. Therefore, the community had to make choices: which media to participate in; who participates; whose faces the message is associated to; to what extent the allies are to be taken into consideration; which types of discourses get privileged, and which become excluded. Amongst other public effects, the Portuguese LGBTQI+ movement started to acknowledge asexuality in documents produced by them. The corpus of materials on the subject grew, and asexuality left a significant footprint. The major tendency points towards a positive portrayal of asexuality that puts asexual people centre stage, owning narratives about themselves.
Bajo el signo del azafrán
Authors: González Irune Valderrábano
Published: December 2021

El azafrán es una flor bien conocida en la Antigüedad. Empleada como condimento culinario; esencia de perfumes; ingrediente de preparados médicos y tinte de tejidos, las fuentes textuales la asociaron preferentemente al mundo femenino. Sin embargo, también observamos su presencia entre los hombres, de tal forma que la planta y sus usos guardaban un valor polisémico, objeto principal de nuestro trabajo. En el presente artículo estudiamos los diversos significados del azafrán en función de los sujetos que los utilizan: vírgenes, mujeres casadas y hombres; y a través, principalmente, del vestido obtenido de su tintura, el krokotos. Siguiendo como metodología de trabajo el análisis estructural, se consultaron los textos antiguos para observar el modo y motivo por el cual vestían de azafrán algunas jóvenes vírgenes antes de casarse; las esposas seducían con vestes azafranados a sus maridos; o ciertos hombres se disfrazaban de mujer con el krokotos. Fue posible, así, constatar el sentido de esta prenda como marcador de estatus entre niñas o casadas; esposas modestas o heteras; y hombres viriles o afeminados; valor que se articularía a través del motivo de la seducción, presente en todos los estamentos estudiados.
Nota a Eun. VS 16.14. Sobre el concepto de synousia en las Vidas de filósofos y sofistas de Eunapio de Sardes
Authors: Alviz Fernández Marco
Published: December 2021

Este artículo tiene por objeto interpretar el término synousia en el pasaje 16.14 en las Vidas de filósofos y sofistas de Eunapio de Sardes, el cual forma parte del espacio dedicado a Libanio de Antioquía. A través de un repaso por su conceptualización original en el ámbito de la paideia y de las comunidades de educación superior grecorromanas pretendemos clarificar su empleo por parte del rétor sardiano. De esta forma, después de analizar asimismo todas las ocurrencias del término en las Vidas, llegamos a la conclusión de que Eunapio emplea synousia como un término técnico en el contexto de la educación tardoantigua que comprende un significado en torno a la idea de íntima reunión académico-espiritual.
La “Lección VI. Del Imperio Romano” de Tomás de Iriarte
Authors: Salas Salgado Francisco
Published: December 2021

El objetivo de este trabajo es describir y analizar la “Lección VI. Del Imperio Romano”, que forma parte de la obra titulada Lecciones instructivas, escrita por Tomás de Iriarte y publicada póstumamente en Madrid, en 1794, obra que tuvo posteriores reediciones. Iriarte fue y es reconocido en el mundo literario por sus Fábulas literarias. Sin embargo, afortunadamente, también se está investigando su labor como humanista, la que lo vincula con el pasado clásico, dentro de la cual habría que enmarcar la obra que aquí analizamos. Estas Lecciones instructivas no han recibido la atención que merecen de la crítica literaria, menos esa Lección VI relacionada con la historia antigua de Roma y que debe verse como ejemplo de pervivencia del Mundo Clásico. Nuestra intención en este trabajo es hacer un primer acercamiento a la misma, describir su contenido, contextualizarla dentro de la concepción historiográfica imperante en el siglo XVIII con otros textos similares, antiguos o coetáneos, que pudieron servir de modelo a Iriarte, sobre todo en relación con la finalidad que perseguía, ya que Iriarte no aporta información alguna sobre las posibles fuentes. Asimismo, se insiste en la función pedagógica para la que fue concebida, especialmente por el público al que iba dirigida.
Full digital workflow in fixed adhesive dental prosthesis: Description of a clinical technique
Authors: Rivoli Rossi Natalia , Moreira Jr Claudio , De Sá Santos Gomes Michelle , Tércio Vieira Grangeiro Manassés , José de Arruda Paes Júnior Tarcísio , Eduardo de Paiva Gonçalves Sérgio , De Siqueira Anzolini Saavedra Guilherme
Published: December 2021

Digital dentistry has gained space in several dental specialties. It is possible to achieve excellent results with the digital workflow, which combines the efficiency of the restorative material with a greater marginal adaptation. This study aimed to report a clinical case through the digital workflow, with a faster and clinically acceptable prosthetic resolution. In this clinical case report, digital workflow allowed a faster and clinically acceptable prosthetic resolution. A 45-year-old female patient reported cementation failure of the prosthetic crown on tooth 14. As it was a vital tooth, the tooth received a total crown preparation. In the same clinical session, the patient's mouth was scanned then a capture software obtained a virtual model. After, the design software planned a digital "diagnostic wax-up",  so a leucitic ceramic was chosen for the rehabilitation. The ceramic block was milled and receive stain and glaze, dispensing the prosthesis laboratory. Then, the adhesive cementation was performed with a dual-polymerized resin cement. The final crown had ideal adaptation, with no need for interproximal and occlusal adjustments, with an excellent marginal fit. Within the limitations of this study, this case report showed that the digital workflow allowed a favorable result in a shorter working time, which brought back function and aesthetics, without the need for interproximal and occlusal adjustments.
Keywords
 Prosthodontics; Cosmetic dentistry; CAD-CAM.
Los objetos del pasado y la enseñanza de la historia: la experiencia de “El Museo Móvil”
Authors: Medina Suárez Víctor , Cobá Noh Lorgio
Published: December 2021

El presente trabajo explica la relevancia de los objetos del pasado, de origen doméstico, como materiales estratégicos para la reflexión pretérita y como alternativa a la crisis que enfrenta la enseñanza de la historia de carácter nacionalista. Nuestro objetivo es reflexionar sobre una experiencia didáctica a través del programa piloto titulado El Museo Móvil, que ha sido llevado a diversas escuelas secundarias y preparatorias del Estado de Yucatán, en México. Este ejercicio nos ha demostrado que el empleo de la didáctica del objeto que incorpora materiales con determinada carga simbólica y discursiva de carácter local y regional tiene potencial para articular, con mucho éxito, el proceso de enseñanza-aprendizaje que facilita asumir el pensamiento histórico, en su dimensión de consciencia histórica, que contribuye a formar una ciudadanía crítica y reflexiva.
La enseñanza de la Historia en la formación inicial del profesorado de historia en Brasil
Authors: Cavalcanti Erinaldo
Published: December 2021

El artículo analiza las matrices curriculares de carreras de grado en historia que se ofrecen en las universidades federales de Brasil con el objetivo de identificar cuántas y qué asignaturas obligatorias se encargan específicamente de los debates sobre la enseñanza de la Historia durante la formación docente inicial. Además, se busca saber qué contenidos se trabajan en las asignaturas respectivas. Como metodología, utilizo los procedimientos cuantitativos mediante los cuales he catalogado las matrices y las disciplinas y elaborado tablas y cuadros con los datos. Luego utilizo los fundamentos cualitativos para analizar el contenido que se presenta en los programas de las asignaturas. La conclusión de la investigación señala la existencia de diversas temáticas y formas de presentar las discusiones sobre la enseñanza de la Historia y muestra la presencia predominante del contenido de la metodología de la enseñanza en más del 80% de las matrices que fueron analizadas.
Motivación y satisfacción laboral del personal técnico administrativo de la enseñanza
Authors: Costa Barros Fernanda , Ribeiro Vitória , Silva André Vasconcelos
Published: December 2021

La búsqueda de mejoras en el rendimiento de las organizaciones está directamente relacionada con el comportamiento de los empleados.Entre los factores que influyen en su comportamiento está la satisfacción laboral. Este artículo pretende identificar los factores que influyen en la satisfacción laboral de los técnicos administrativos en educación. Medición de la satisfacción del personal administrativo en activo de las Instituciones Federales de Enseñanza Superior (IFES) del Estado de Goiás mediante el uso de cuestionarios de satisfacción laboral. En cuanto a los resultados, observamos que el 54,6% de las TAEs participantes en la encuesta están parcial o totalmente satisfechas, sólo el 2,5% están totalmente insatisfechas, el 10,1% están parcialmente insatisfechas y el 32,8% se concentran en el rango de indiferentes.
Desempeño de la gestión competitiva en agroindustrias: estudio de casos lácteos de La Pampa
Authors: González Rocio Lujan , Perez Santiago Agustín , Mariano Roberto Carlos , Ferro Moreno Santiago
Published: December 2021

El objetivo del trabajo es evaluar los factores que potencian o condicionan la competitividad del complejo agroindustrial lácteo de primera transformación de la provincia de La Pampa. El complejo está conformado por un total de 21 agroindustrias habilitadas, de las cuales se entrevistó a 14. A partir del análisis de antecedentes y marco teórico, se identificaron 9 ejes y 67 indicadores para la medición del desempeñocompetitivo. A partir de estos indicadores, se analiza el comportamiento de estos factores a nivel agroindustrial y luego a nivel del complejo lácteo (14 organizaciones). Con estos resultados, se determina el índice de desempeño competitivo del complejo agroindustrial lácteo pampeano, representando una competitividad baja. El complejo agroindustrial lácteo se apalanca positivamente en la gestión estratégica y económica productiva, y traccionan negativamente los ejes relacionados a la gestión ambiental y comercial. Teniendo en cuenta los ejes de competitividad, se agruparon las agroindustrias en cuatro conglomerados diferentes, conformados por el desempeño en los ejes competitivos. Las agroindustrias que conforman los cuatro conglomerados se relacionan según la positividad o negatividad de sus índices competitivos. Los factores que potencian la competitividad son la satisfacción del cliente, saber hacer, financiamiento con capital propio, imagen, precio, preparación y formación del personal, e innovación de procesos. Los que restringen competitividad son la satisfacción de clientes, descarte de residuos, planes de pago y moratorias y aprovisionamiento de insumos. La metodología propuesta permite medir y evaluar distintas aristas de la competitividad en cada organización y de los complejos agroindustriales en general.
Application of moringa leaf extract improves growth and yield of Tomato (Solanum lycopersicum) and Indian Spinach (Basella alba)
Authors: Hoque Tahsina Sharmin , Abedin Md. Anwarul , Kibria Mohammad Golam , Jahan Israt , Hossain Mohammad Anwar
Published: December 2021

Moringa (Moringa oleifera L.) leaf extract is a natural plant growth stimulant that is well-known for its ability to improve plant growth and development. A field study was conducted to evaluate the influence of MLE (Moringa Leaf Extract) on the growth, yield and nutritional improvement in two vegetable crops [Tomato (Solanum lycopersicum) and Indian Spinach (Basella alba)]. The extract was applied at two weeks interval with different frequencies. The crops were fertilized with chemical fertilizers and MLE application was done as per treatment @ 25 ml/plant. For each of the crops, this bio-stimulant had a significant boosting effect on growth, yield and nutrient uptake whereas the maximum frequency in the application i.e. T4 (foliar application of MLE at 2 weeks after transplanting and application at every 2 weeks thereafter) showed the highest influence. Indian Spinach responded proportionally more to foliar-applied MLE in terms of plant growth and nutrient uptake compared to tomato. The effect of MLE on the yield parameters was more pronounced in tomato that showed a 25% (averaged across all the growth parameters) increase over control, but Indian Spinach showed ~20% increase in yield parameters compared to control. Therefore, applying MLE to the foliage may assist in increasing the yield by improving plant growth across the different vegetable species (e.g., Tomato and Indian Spinach).
Moral Calls Resulting from the Gift of the Eucharist in the Teaching of Pope Benedict XVI
Authors: Kluz Marek
Published: December 2021

The role of the Eucharist in shaping the moral life is enormous and in fact, thanks to the Eucharist, the essence of Christian life can be read. Therefore, it is not surprising that Pope Benedict XVI has often addressed the Eucharist in his teachings. In this way, he wanted to deepen and revive the worship of Eucharistic Jesus. In his teachings, he showed the Eucharist as the greatest treasure given to man for shaping the moral life. He constantly reminded us of the obligations arising from the participation in the Eucharist. Because of its specificity, the Eucharist contains moral calls: to sacrifice, to feeding on the bread of life, to praise and giving thanks, and to living in faith and love. Fulfilling all these attitudes and moral calls in everyday life is a way to progress in the Eucharistic life.
Nadzór nad lecznictwem uzdrowiskowym ze szczególnym uwzględnieniem czynności kontrolno-nadzorczych nad zakładami lecznictwa uzdrowiskowego
Authors: Jachimowicz-Jankowska Paulina
Published: December 2021

Spa treatment, which constitutes an integral part of health care, is an organized activity consisting in providing health care services in the field of spa treatment or spa rehabilitation carried out in a spa by spa treatment facilities. In order to ensure the proper and efficient operation of this form of treatment in specially adapted facilities that are medical entities, this treatment is subject to professional supervision. Supervision over health resort treatment entails the control and evaluation of health resort treatment carried out in health resort treatment establishments. This issue is regulated primarily in the Act of 28 July 2005 on spa treatment, health resorts and health resort protection areas and in health resort communes, as well as in the Act of 15 April 2011 on medical activity. The study contains an analysis and evaluation of the legal regulations concerning the supervision of spa treatment. It discusses the basic terms related to spa issues and presents some concepts of control and supervision in terms of the doctrine. Spa supervision is characterized by specific regulations and the degree of complexity. This applies to individual issues that allow the reconstruction of the essence of supervision. These are the supervisory authorities, subject of supervision, the supervised entities, criteria and scope of supervision exercised and legal means of supervision. The authorities supervising the health resort treatment include the Minister of Health, the Voivode, the Minister of National Defense and the Minister of the Interior. In this article, in the analysis of the scope of his competences and control and supervisory powers great attention is paid to the Minister of Health as the central body of government administration in the field of matters belonging to the department of health administration managed by him. Due to the specific nature of supervision of this treatment carried out in the voivodeship, the legal position of the chief physician of the health resort, with whose help the voivode exercises this supervision, was analyzed. Since spa treatment is carried out in spa facilities in a health resort, the study contains the problem of separate control procedurescarried out in this area, within which special attention is paid to internal, management and ad hoc control.
Super-resolution imaging: when biophysics meets nanophotonics
Authors: Koenderink A. Femius , Tsukanov Roman , Enderlein Jörg , Izeddin Ignacio , Krachmalnicoff Valentina
Published: December 2021

Probing light–matter interaction at the nanometer scale is one of the most fascinating topics of modern optics. Its importance is underlined by the large span of fields in which such accurate knowledge of light–matter interaction is needed, namely nanophotonics, quantum electrodynamics, atomic physics, biosensing, quantum computing and many more. Increasing innovations in the field of microscopy in the last decade have pushed the ability of observing such phenomena across multiple length scales, from micrometers to nanometers. In bioimaging, the advent of super-resolution single-molecule localization microscopy (SMLM) has opened a completely new perspective for the study and understanding of molecular mechanisms, with unprecedented resolution, which take place inside the cell. Since then, the field of SMLM has been continuously improving, shifting from an initial drive for pushing technological limitations to the acquisition of new knowledge. Interestingly, such developments have become also of great interest for the study of light–matter interaction in nanostructured materials, either dielectric, metallic, or hybrid metallic-dielectric. The purpose of this review is to summarize the recent advances in the field of nanophotonics that have leveraged SMLM, and conversely to show how some concepts commonly used in nanophotonics can benefit the development of new microscopy techniques for biophysics. To this aim, we will first introduce the basic concepts of SMLM and the observables that can be measured. Then, we will link them with their corresponding physical quantities of interest in biophysics and nanophotonics and we will describe state-of-the-art experiments that apply SMLM to nanophotonics. The problem of localization artifacts due to the interaction of the fluorescent emitter with a resonant medium and possible solutions will be also discussed. Then, we will show how the interaction of fluorescent emitters with plasmonic structures can be successfully employed in biology for cell profiling and membrane organization studies. We present an outlook on emerging research directions enabled by the synergy of localization microscopy and nanophotonics.
Electro-optically modulated lossy-mode resonance
Authors: Śmietana Mateusz , Janaszek Bartosz , Lechowicz Katarzyna , Sezemsky Petr , Koba Marcin , Burnat Dariusz , Kieliszczyk Marcin , Stranak Vitezslav , Szczepański Paweł
Published: December 2021

Sensitivity, selectivity, reliability, and measurement range of a sensor are vital parameters for its wide applications. Fast growing number of various detection systems seems to justify worldwide efforts to enhance one or some of the parameters. Therefore, as one of the possible solutions, multi-domain sensing schemes have been proposed. This means that the sensor is interrogated simultaneously in, e.g., optical and electrochemical domains. An opportunity to combine the domains within a single sensor is given by optically transparent and electrochemically active transparent conductive oxides (TCOs), such as indium tin oxide (ITO). This work aims to bring understanding of electro-optically modulated lossy-mode resonance (LMR) effect observed for ITO-coated optical fiber sensors. Experimental research supported by numerical modeling allowed for identification of the film properties responsible for performance in both domains, as well as interactions between them. It has been found that charge carrier density in the semiconducting ITO determines the efficiency of the electrochemical processes and the LMR properties. The carrier density boosts electrochemical activity but reduces capability of electro-optical modulation of the LMR. It has also been shown that the carrier density can be tuned by pressure during magnetron sputtering of ITO target. Thus, the pressure can be chosen as a parameter for optimization of electro-optical modulation of the LMR, as well as optical and electrochemical responses of the device, especially when it comes to label-free sensing and biosensing.
Frequency and mode measurement techniques for megawatt-class gyrotrons
Authors: Ruess Tobias , Gantenbein Gerd , Ioannidis Zisis , Rzesnicki Tomasz , Wagner Dietmar , Thumm Manfred , Jelonnek John
Published: December 2021

State-of-the-art vacuum electron tubes such as gyrotrons, deliver RF output powers up to more than 2 MW at frequencies up to 170 GHz. In terms of the very high power levels, a proper verification of the gyrotron components itself and measurements during gyrotron operation are vital to prevent possible fatal errors. Several basic RF measurement setups, which are used at IHM/KIT, are discussed. Currently, their upper frequency limit is 175 GHz. In terms of future gyrotron operation above 200 GHz, upgrades of the measurement setups for operation up to 260–330 GHz are prepared. The experimental devices discussed herein are a quasi-optical mode generator for the verification of the quasi-optical gyrotron output system, the window measurement test stand to verify the ceramic gyrotron output window and the frequency diagnostic system to measure the operating frequency and thereby the excited mode.
Spectral subtraction-based filter for experimental modal analysis under harmonics excitation force
Authors: Che Ku Husin Che Ku Eddy Nizwan , Ghazali Mohd Fairusham , Yusoff Ahmad Razlan
Published: December 2021

In modal analysis, measurement of input force and vibration response are crucial to accurately measure the transfer function of the structure. However, under operating condition, the force induced by operating machinery is impossible to be measured due to the sensor placement issue. In this case, the ambient response induced by the operating force should be suppressed to minimize the error in the Frequency Response Function (FRF) calculation. This paper presents the utilization of a modified spectral subtraction filter for ambient suppression. The introduction of effective ambient magnitude in gain function calculation has increased the efficiency of spectral subtraction filter. This parameter is calculated based on the phase information of the reconstructed artificial ambient response. The measurement using EMA was carried out on a motor-driven structure to verify the proposed technique. Two sets of data under shutdown and running condition were recorded to observe the effect of ambient operating force. Under the operating condition, the measured FRF show the non-identical features at operating frequencies as compared to the baseline data. The utilization of filtering process shows the ambient features contained in the transfer function was effectively suppressed. The output of filtering algorithm could provide an alternative option to perform EMA procedure under running condition.
Modelling of cutting forces and surface roughness evolutions during straight turning of Stellite 6 material based on response surface methodology, artificial neural networks and support vector machine approaches
Authors: Ben Fathallah Brahim , R. Saidi  , S. Belhadi  , M.A. Yallese  , T. Mabrouki
Published: December 2021

The present research work proposes an experimental investigation helping to comprehend fundamental impacts of operating conditions during the cutting of cobalt alloys (Stellite 6). Thus, an experimental design was adopted to allow to build predicted mathematical models for the outputs, which are the average peak-to-valley profile roughness (Rz) and the tangential cutting force (Ft). Artificial neural network (ANN), support vector machine (SVM) and response surface methodology (RSM) were exploited to model the pre-cited outputs according to operation parameters. As a result, it has been highlighted that both feed rate and cutting depth, considerably, affect tangential cutting force evolution. Moreover, results show that both the insert feed rate and nose radius, are higher. This means the average peak-to-valley profile roughness is higher. In order to put out the effect of operating parameters on cutting outputs, Analysis of variance (ANOVA) method has been employed. This has allowed the detection of significant cutting conditions affecting average peak-to-valley profile roughness and tangential cutting force. In fact, to highlight the performance of adopted mathematical approaches, a comparison between RSM, ANN, and SVM has been also established in this study.
Minimum altitude variation orbits. Analysis of characteristics and stability
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Maslova A.I. , Pirozhenko A.V. ,   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Vasylіev V.V. ,   Earth Observing System Data Analytics
Published: December 2021

The article discusses the regularities of satellite motion in almost circular orbits under the influence of the second zonal harmonic of the geopotential. The aim of the research is to determine the parameters of orbits with a minimum change in radius and to study the properties of these orbits. It is shown that the problem of determining the parameters of orbits with a minimum change in radius is of theoretical and practical interest. These orbits are the closest to Keplerian circular orbits. The practical interest in such orbits is determined by the possibility of using them for scientific research and Earth observation systems. Based on the analysis of the literature, it was concluded that the solution of the problem under consideration is not complete by now: the algorithm for determining the parameters of the orbits are not well founded and unnecessarily complicated; there is no analytical analysis of the stability of the orbits of the minimum change in radius. The efficiency of application of the previously developed theory of describing the motion of satellites in almost circular orbits for determining the parameters of orbits with a minimum change in radius is shown. For this purpose, the solutions of the first approximation of the motion of satellites in almost circular orbits under the influence of the second zonal harmonic of the geopotential have been improved. These solutions make it easy to determine the parameters of the orbits of the minimum change in radius. The averaged equations of the second approximation of the influence of the second zonal harmonic on the satellite motion are constructed and, on their basis, the stability of the orbits with a minimum change in radius is proved. It is shown that the second approximation in small parameters completely describes the main regularities of the long-period satellite motion under the influence of the second zonal harmonic of the geopotential. With the help of numerical studies, the instability of orbits with a minimum change in radius is shown with allowance for the effect of higher order harmonics of the geopotential. Analysis of the area of possible application of orbits with a minimum change in radius showed that such orbits can be of practical importance for very low and ultra low orbits, where the control action on the satellite movement is carried out at least once every two days.