bluuebunny/crossref_metadata_2025 huggingface dataset:
Mechanical Behavior of Active and Passive Strain Sections in CFRP Laminate under Uniaxial Tension
Authors: Severov Pavel B.
Published: August 2021

This study investigates the nonlinear behavior of quasi-isotropic CFRP laminate under uniaxial tension. To verify the convergence of the calculated and experimental deviations, the approximating nonlinear equations describing the upper and lower hysteresis loop branches were found. The formation of a hysteresis loop in the active and passive strain sections in CFRP laminate has been studied. The open hysteresis loop development stages are shown from maximum expansion to stabilization, and to the tendency of branches to connect and narrow the loop. The point of the maximum angle between the upper and lower branches of the loop is determined – the apex of the hysteresis loop at maximum deformation. The strain region is found, in which the branches of the loop are parallel. The equations are determined, describing the nonlinear behavior of modules of Ex(ε) in the sections of increasing and decreasing strain. The dependence between mechanical energy dissipation per unit volume and strain was obtained.
Influence of Tool Blunting on the Value of the Axial Component of the Cutting Force and the Drilling Process
Authors: Shulgin Alexey N. , Chuprina Olesya A. , Pykhov Vasiliy V.
Published: August 2021

One of the main technological criteria affecting the quality of drilling the holes is the correct geometry of a cutting tool and the amount of its wear. The determination of the “critical” amount of a drill wear is possible only through the indirect way, in particular by the presence of the copper foil burrs at the tool output from the printed circuit board, since with the up-to-date degree of integration of micro-assemblies, the main part of the processed holes has the diameter of about 0.6-0.8 mm, and it is quite challenging to determine the tool wear without special equipment, and in conditions of mass production it is almost impossible.
A number of industrial experiments with the hard-alloy drills of standard sharpening geometry of various amount of wear was carried out in order to assess the influence of the cutting tool geometry and the amount of wear on the drilling process. To assess the quality of the processed holes, the chip size (Lch), the micro-roughness of the holes (Ra) and the size of the copper foil burrs at the output of the workpieces (Hb) were additionally measured with a specialized precision tool. In total, 1500 holes were drilled at each previously determined operating mode.
The “critical” value of the tool blunting, the maximum allowable values of Lch,Ra and Hbwere practically defined in the course of work. On the basis of the conducted experiments, the threshold values of the axial feed speeds for the work of the “worn out” and “blunted” tool were defined. In addition, the general recommendations were formulated for the operator when drilling the foiled fiberglass and eliminating mass defects at printed circuit board manufacture.
Utilization of Porcelain Tile Polishing Residue
Authors: Shvarczkopf Valeriya È. , Pavlova Irina A. , Farafontova Elena P.
Published: August 2021

The research focuses on the properties of by-products formed in the production of porcelain stoneware: polishing residue and residue of the mixture-preparation shop. The polishing residue consists of glassy phase (80%), quartz (14%), mullite (5%). Residue of the mixture-preparation shop consists of quartz (~ 18%), muscovite (~ 6.9%), kaolinite (~ 20.5%), calcium-sodium feldspar (~ 51.4%), diopside (~ 2.98%). Polishing residue occurs when polishing porcelain stoneware to create a glossy surface and when polishing the side faces of porcelain stoneware to obtain accurate tile geometry. The particle size of the polishing residue is less than 0.2 mm, and the residue of the mixture-preparation shop is less than 40 microns. Residue of the mixture-preparation shop is formed when cleaning equipment: mills, mixers, slipways, etc. The ways of utilization of by-product are follows: as a filler for the silicate production; for polymer-cement, water-dispersion and oil paints; as a filler for the production of roofing materials, bituminous roofing mastics based on organic binders; raw materials for the production of foam glass materials and products.
Felsite in Ceramic Materials Production
Authors: Razgulyaeva Valeriya M. , Pavlova Irina A. , Farafontova Elena P.
Published: August 2021

This project is devoted to the study of the felsite properties for the purpose of its application in the production of various types of fine ceramics: ceramic tiles, acid-resistant tiles, aluminosilicate proppants, etc. Felsite is a mixture of quartz (about 40%) and feldspars. In the compositions of ceramic masses, felsite can play the role of both nonplastic due to the quartz content, and flux due to the content of feldspars, that reduces the amount of mixture components. When felsite is fired, the melt appears at a temperature above 950°C. The felsite has a sintering effect when fired at a temperature of 1000°C. Glass phase enriched with SiO2 ensures the absence of material deformation after firing. Also, glassy phase provides high-acid and chemical resistance of materials based on it. In addition, after firing above 1150°C, felsite has a light color, which is a great advantage in comparing it as a melt with other iron-alkali-containing materials. Ceramics based on felsite does not require the use of opacified glazes.
Methods for Properties Analysis of Crystalline Materials Based on Solid Solutions of Silver and Thallium (I) Halides
Authors: Yuzhakova Anastasia A. , Salimgareev Dmitrii D. , Zhukova Liya V.
Published: August 2021

The paper presents a set of methods developed for properties control of new optical crystals based on solid solutions of silver and thallium (I) halides. Crystals and optical products based on them are used for optical and optoelectronic systems in the middle and far infrared range. In this regard, to analyze the properties of new infrared materials, new analysis methods are required, which provide high accuracy and repeatability of the results. The authors have developed methods for studying the optical, mechanical and electrical properties of materials. The studies’ results carried out by these methods for various systems of silver and thallium (I) halides solid solutions are presented.
Innovational Construction Materials of LLP “EcostroyNII-PV” Production
Authors: Aryngazin Kapar Sh. , Bogomolov Alexey V. , Tleulessov Askar K.
Published: August 2021

The article discusses the experience of recycling industrial waste from the electric power industry and metallurgy. Based on the experience of Ecostroy NII-PV LLP. The proposed technology for manufacturing building products from ash and slag waste provides innovative compositions of raw mixtures. What provides an increase in operational characteristics and labor productivity in construction. The applied technology, in comparison with the existing analogues, provides for the use of local waste (ash and slag waste from the combustion of Ekibastuz coal, bauxite sludge from the Pavlodar aluminum plant, steel-making slags), differing in chemical and granulometric composition. as well as binding properties from other analogs and prototypes. In the manufacture of building products introduced mixture, including, wt %: slag Portland cement - 14.32-17.00; sand - 18.74-25.52, crushed stone - 46.50-49.71, sludge from alumina production obtained during the recycling of bauxite from Kazakhstan - 5-7; self-disintegrating steelmaking slag - 5-7; ash and slag waste from thermal power plants from burning Ekibastuz coals - 5-7. According to the test results, the average tensile strength of building products (paving slabs, curbs, hollow bricks) is 3.2 - 3.8 MPa (strength class V2.5).
Experimental Studies of the Physical and Mechanical Properties of Glued Building Materials Based on Modified Veneer
Authors: Khasanshin Ruslan R. , Safin Ruslan R. , Mukhametzyanov Shamil R.
Published: August 2021

Today, glued timber products occupy a significant place in the volume of finished products of modern construction and woodworking enterprises. Plywood is one such product. The durability and structural characteristics of plywood depend on the quality of binder, the type of wood and the quality of veneer. The paper explores the technology of ultraviolet treatment of thermally modified birch veneer with subsequent production of waterproof plywood. The results of a study on the influence of the operating parameters of veneer modification on the complex of sorption and strength characteristics of plywood materials are presented. It is established that the combination of thermal modification of wood throughout the entire volume with surface treatment with ultraviolet radiation allows creating glued wood material with increased water resistance and high-quality adhesive interaction.
Modified Composite Fine-Grained Concrete
Authors: Perfilov V.A.
Published: August 2021

The paper presents the findings of the experimental investigation conducted to identify the effect of composite admixtures including a plastifying agent and soot production wastes on the proper-ties of fine grained concrete. The joint effect of the cement and sand matrix and soot wastes was investigated, too. The investigation identified the effect the complex admixture of a plastifying agent and soot wastes on structure formation, physical, mechanical properties and strength of the fine grained concrete. It was found that the micro particles of soot wastes concentrate the grains of the quartz sand around them as well as the products of the new formation of cement stone such as hydrated calcium silicate and others. This ensures a higher density of micro structure and increased strength of the fine grained concrete.
Low-Temperature Synthesis of ZnO Nanoparticles with Controlled Crystal Growth for Efficient Ultraviolet Photocatalyst
Authors: Hu Jun Shan , Hu Ze Dong , Wei Zi Qian , Fu Hao
Published: August 2021

In this paper, we report that an effective and simple chemical method under the low temperature (60 °C) could synthesize zinc oxide (ZnO) nanoparticles and effectively control the crystal growth based on the hydrothermal method. X-ray diffraction, X-ray electron spectroscopy, high resolution transmission electron microscopy and ultra violet visible spectroscopy were used to characterize the structure and performance of the samples. It is shown that the ZnO nanoparticles synthesized under the optimal reaction conditions are strong ultraviolet absorption, high-uniformed sphere and high specific surface. In the photodegradation of rhodamine B (RhB) tests, ZnO nanoparticles thrived well during the reaction and degraded the material in 50 minutes. Since ZnO nanoparticles towards RhB degradation shows a good stability, it might provide an effective way to tackle environmental pollution.
Titanium Dioxide-Infused Hybrid Electrolytes Based on Ionic Liquids Containing Protic Cation: Effect of Solute Concentration on the Electrochemical and Interfacial Properties
Authors: Patricio Jonathan , Budlayan Marco Laurence , Arco Susan
Published: August 2021

The efficiency of batteries, supercapacitors, and dye-sensitized solar cells for energy storage and harvesting processes depends on the relative energy levels and the charge transfer kinetics at the electrode/electrolyte interface. Owing to their distinctively tunable properties including non-volatility, low flammability, wide electrochemical stability, inherent conductivity, and high thermal stability, developing low viscosity ionic liquids (ILs) is vital for energy device fabrication. In this work, 1-methylimidazolium ILs were synthesized by a one-step sonochemical solventless reaction and were characterized using FT-IR,1H-NMR, and13C-NMR spectroscopy to confirm their structure. Hybrid electrolytes based on the 1-methylimidazolium chloride ([MIM]Cl) infused with titanium dioxide (TiO2) particles at varying concentrations were prepared, and the effect of solute concentration on their electrochemical and interfacial properties was investigated. Ionic conductivity results revealed that the as-prepared [MIM]Cl-TiO2-0.5% hybrid electrolytes exhibited a higher conductivity in comparison with neat [MIM]Cl. Furthermore, cyclic voltammetry was used to determine their electrochemical stability window and revealed that a wide ESW of 3.56 ± 0.01 V was also obtained by [MIM]Cl-TiO2-0.5% attributed to the enhanced surface tension of 35.92 ± 0.07 mN/m due to the addition of TiO2particles. This observation was validated by the generated pendant drop images showing the remarkable correlation of solute concentration with surface tension and ESW of the hybrid electrolytes. The utilization of these metal oxide-infused solvent-free IL as a substitute for aqueous-and organic-based electrolytes can address issues on electrochemical stability and provide insight in suppressing self-discharge processes, especially when used at higher potentials.
A First-Principle Study of Fe-Doped Co3O4 on N-Doped Graphene as Electrocatalyst
Authors: Wang Chun Ying
Published: August 2021

The metal-air batteries, especially the Zinc-air batteries, are great solutions to the growing energy crisis with excellent rechargeable capacity. ORR is the key electro-chemical reaction in Zinc-air batteries, and the development of the ORR efficiency is being studied extensively. The doping of transition metal in Co3O4, with the basement of N-doped graphene have been confirmed to have catalytic activity which can be comparable to Pt/C. Herein, the Fe-doped Co3O4 supported by N-doped graphene is constructed as the catalyst of ORR, and that without Fe doping is also constructed as comparison. Through first-principle calculation, it shows that the adsorption energies to O2 on the same site of each surface and on different sites on Fe-doped one. The partial density of state of the O2 adsorption system shows the effects of electron transfer and orbital hybridization on catalysis, which provide evidence to the catalytic mechanism with Fe doping. The energy changes of each step in ORR on catalyst with Fe doping and without Fe doping show the shortcomings of the simulation, including the spin of Fe atoms. Thus the study confirms that the adding of Fe contributes to the catalystic capability compared to the pure Co3O4.
The Quantitative Examination of the Relationship Between Job Satisfaction and Organizational Fit in Athletic Trainers
Authors: Schroeder Lindsey H. , Richardson Eric L. , Carroll Rachel M.
Published: August 2021

Context

Athletic trainers' (ATs') job satisfaction has been extensively researched, yet little is known about how satisfaction relates to organizational culture.

Objective

To examine ATs' level of job satisfaction with and organizational-fit perceptions of their employment setting.

Design

Cross-sectional study.

Setting

Web-based questionnaire.

Patients or Other Participants

A total of 5704 ATs (full-time employment, nonacademic appointment) were contacted via email; 841 participants began our survey (access rate = 14.7%), and 285 completed it (5.0% response rate; 33.9% completion rate). Demographic characteristics were men = 107 (37.5%), women = 178 (62.5%); age = 34.8 ± 9.9 years; and employment setting = 34.7% (n = 99) from National Collegiate Athletic Association Division I, 18.9% (n = 54) from Division II, 29.5% (n = 84) from Division III, and 16.9% (n = 48) other.

Main Outcome Measure(s)

Participants responded to an online survey consisting of demographic questions, a 36-item Likert-scale Job Satisfaction Survey, and the Cable and Judge revision of the O'Reilly, Chatman, and Caldwell 40-item ranking Organizational Culture Profile survey. Multiple linear regression models for total or subscale job satisfaction were used to analyze the data. All models adjusted for the same demographic measures, and the independent variables of interest were created from the organizational culture survey responses.

Results

Coworkers (minimum [min] = 9, maximum [max] = 24, ρ = .79), communications (min = 9, max = 24, ρ = .78), and work itself (min = 4, max = 24, ρ = .71) were most correlated with the total job satisfaction score (min = 96, max = 175). Of the respondents, 54% selected adaptability, stability, and taking individual responsibility as 1 of their 2 most characteristic attributes in the organizational culture profile. In addition, 83% of respondents indicated being aggressive, receiving high pay for good performance, and being distinctive or different from others as their 2 least characteristic traits.

Conclusions

The job satisfaction of these ATs was affected most by organizational factors, such as coworkers and communication, as well as by individual attributes such as adaptability, stability, and taking personal responsibility.
Lingual retainer materials
Authors: Nosouhian Mohsen , Monirifard Mohamad , Gharibpour Fateme , Sadeghian Saeed
Published: August 2021

Background:

A bonded fixed retainer is used to stabilize the alignment of the teeth. Different composites have been introduced for this purpose. This study aimed to investigate the wear resistance of flowable nanocomposite in comparison with microhybrid composite in an in vitro situation.

Materials and Methods:

In this in vitro study, 46 disk-shaped specimens were divided into two groups: Filtek Ultimate flowable composite and Z250 microhybrid composite. The samples were prepared in 8 mm diameter and 3 mm thickness in an aluminum mold and light cured. They were polished with 600 grit sandpaper to achieve a smooth surface. Two-body wear test was accomplished by the pin-on-disk device (under 15 N, 20 rpm for 1 h). Analyzing the weight and thickness of specimens before and after the assay demonstrates the wear resistance. Data were analyzed using the t-test. P ≤ 0.05 was considered statistically significant.

Results:

The Filtek Ultimate flowable composite shows no significant difference compared to Z250 microhybrid composite in thickness (P = 0.701) and weight (P = 0.939) of specimens.

Conclusion:

Due to wear resistance of both materials, flowable composite can be recommended as an alternative material for bonded fixed retainers.
Between a Short-term and a Long-term Antimicrobial Prophylaxis in Prostate Biopsy
Authors: Ogbetere Friday Emeakpor , Eshiobo Irekpita , Onuora Vincent C.
Published: August 2021

Background:

Transrectal needle biopsy of the prostate (TNBP) is a common urological procedure with some attendant infective complications. Although most urological surgeons give antibiotic prophylaxis, there is, however, no consensus on the duration. This study compares the outcome of a three-day and seven-day antibiotic prophylaxis in TNBP.

Materials and Methods:

One hundred and twenty men who met the inclusion criteria were recruited and randomized into two equal groups. The patients in Group I received oral ciprofloxacin and metronidazole for three days and Group II received the same drugs for seven days. The antibiotics were commenced 2 h before the biopsy. Urine samples were taken for microscopy, culture, and sensitivity before the biopsy in all patients. For patients in group I, urine microscopy, culture and sensitivity were done on days 5 and 10 after biopsy, and on days 10 and 14 after biopsy for group II patients. Infective complications were determined by the presence of fever and positive urine cultures post-biopsy.

Results:

This comparative prospective study was done between June 2016 and November 2017. Groups I and II had comparable infective complication rates (11.70% for Group I and 3.30% for Group II) (P = 0.212). However, diabetics did better on a seven-day regimen (P < 0.001). Escherichia coli was the most common organism isolated (63.2%). Cephalosporins were the most effective antibiotics in post-biopsy infections in this study.

Conclusion:

Three-day oral ciprofloxacin and metronidazole are effective for prophylaxis in TNBP. However, a seven-day regimen is better in diabetics before a prostate biopsy. The cephalosporins are a good option in the management of post-biopsy infections caused by quinolone-resistant organisms.
Trial of Labour after Caesarean Section in a Secondary Health Facility in Abakaliki, Nigeria
Authors: Anikwe Chidebe Christian , Kalu Collins Agbeze , Okorochukwu Bartholomew Chukwunonye , Dimejesi Ikechukwu B. Okechukwu , Eleje George U. , Ikeoha Cyril Chijioke
Published: August 2021

Background:

The mode of delivery of a parturient is influenced by previous caesarean section (CS) scar.

Objective:

The objective of the study is to evaluate the pregnancy outcomes of a parturient with one previous caesarean delivery that was managed in Mile Four hospital, Abakaliki, Nigeria.

Materials and Methods:

A 5-year retrospective study of women with one previous CS who delivered in Mile Four hospital between January 2011 and December 2015 was done. IBM SPSS version 20 was used for data analysis, and data were represented using frequency tables, charts, and Chi-square. The level of significance was set at an alpha level of 0.05.

Results:

Three hundred and twenty-two (322) women with one previous CS were selected for a trial of labor after A C/S (TOLAC). More than half of the women (53.1%) had successful TOLAC while 46.9% had a repeat CS. Of the 53.1% of women who had a successful TOLAC, One hundred and forty-one patients had spontaneous vertex delivery. Seventeen women (9.9%) on the TOLAC arm had a ruptured uterus, while seven patients (4.6%) failed the TOLAC group had uterine dehiscence. Haemorrhage was the most common maternal complication. Severe asphyxia and perinatal death were present in 5.9% and 5.3% of neonates on TOLAC arm, respectively.

Conclusion:

Trial of labour after a CS can result in an excellent outcome in a well-selected patient. The success rate of 53.1% in our study is encouraging. However, adequate intrapartum monitoring is recommended to reduce maternal and fetal complications.
Histopathological Pattern of Prostate Diseases in Yola, Nigeria
Authors: Raheem Nasiru , Dahiru Aminu M C
Published: August 2021

Background:

This was a five-year retrospective study aimed at analyzing all prostate biopsies submitted to the Department of Pathology, Federal Medical Centre, Yola. It will also serve as a baseline or reference study for subsequent related research in the future.

Materials and Methods:

All cases registered as prostate diseases within the study period were extracted from the departmental records, comprising bench books and histology reports. The age of the patients, histological diagnosis, and specimen types or surgical procedures (core biopsy, transurethral resection of prostate, or prostatectomy) were retrieved as well. All the slides corresponding to the extracted registered prostate cases received in the department between January 2012 and December 2016 were retrieved, then reviewed microscopically and analyzed afterward.

Results:

A total of 634 prostate tissues were submitted for histology during the study period. 63.6% (403) of these specimens were prostatectomy, whereas the remaining were core biopsies. Almost all the cases (436) analyzed occurred in men 40 years and above and predominantly in the 7th and 8th decades. Nodular hyperplasia was the most prevalent prostatic disease seen over the study period accounting for 542 cases (85.5%). The second in frequency was prostatic adenocarcinoma constituting 14% (89) of the total cases. Two cases of high-grade prostate intraepithelial neoplasia and a case of chronic prostatic inflammation were also seen.

Conclusion:

This study has shown that prostate diseases are most prevalent in the 6th through 9th decades of life, with nodular hyperplasia being the most common lesion of the prostate.
Hypersurfaces with prescribed curvatures in the de Sitter space
Authors: Roldán Ángela
Published: August 2021

In this paper, we establish a relationship between spacelike hypersurfaces in the de Sitter space

\mathbb{S}_1^{n+1}

and conformal metrics on the sphere

\mathbb{S}^n

. As a consequence of this relation and some deep results in conformal geometry, we classify spacelike hypersurfaces in

\mathbb{S}_1^{n+1}

satisfying certain global conditions and a very general Weingarten relation

W(k_1,\ldots,k_n) = 0

of elliptic type, where

k_1,\ldots,k_n

are its principal curvatures. Also, we particularize to some important cases as the

r

th mean curvatures.
SCUAD and chronic rhinosinusitis. Reinforcing hypothesis driven research in difficult cases
Authors: Prokopakis E.P. , Vlastos I.M. , Ferguson B.J. , Scadding G. , Kawauchi H. , Georgalas C. , Papadopoulos N. , Hellings P.W.
Published: August 2021

Background: Our objective is to present recent research findings on recalcitrant chronic rhinosinusitis (CRS) in relation to "Severe Chronic Upper Airway Disease" (SCUAD). Methodology: Literature review using Medline and Em base databases (search terms 'chronic rhinosinusitis'; "chronic sinusitis" or"Severe Chronic Upper Airway Disease") limited to articles published in the English language. Results: Complex pathophysiological mechanisms characterize various forms of chronic rhinitis and rhinosinusitis (CRS), where inflammation persists in spite of adequate medical treatment. In these cases, a multifactorial etiology often underlies the development of sino-nasal inflammation. The interaction between chronic upper and lower airway inflammation via neurogenic and systemic pathways may complicate the therapy of these patients, and lead to insufficient symptom control. Conclusion: The recently introduced definition of "Severe Chronic Upper Airway Disease" (SCUAD) increases awareness of those patients with persistent inflammation and symptoms despite guideline-driven pharmacologic treatment. The concept of SCUAD may prove helpful in directing research towards clarifying the definition, diagnosis and pathophysiology of rhinitis and rhinosinusitis, their limits and overlap. In this review, a hypothesis on SCUAD immunopathology is also presented.
The ventral route to intracranial aneurysm: from the origin towards modern transsphenoidal surgery. An historical review and current perspective
Authors: Di Somma A. , de Notaris M. , Ensenat J. , Alobid I. , Bernal-Sprekelsen M. , Cavallo L.M. , Prats-Galino A. , Cappabianca P.
Published: August 2021

Objective: A review of the main studies that have explored the use of the ventral pathway for treatment of intracranial aneurysms,including the recent reported extended transsphenoidal approaches. Methods: A comprehensive literature review was performed using the PubMed database. We recovered 48 cases of cerebral aneurysms, approached via the transcervical-transclival, transoral-transclival, transfacial-transclival ventral pathways and the extended transsphenoidal route. The overall rates of complications and surgical success were evaluated and compared for both traditional ventral and transsphenoidal approaches. Results: For traditional routes, the overall complications and surgical success rates were 74% (26/35) and 87% (13115), respectively.For extended transsphenoidal approaches were 44% (4/9) and 78% (7 /9), respectively. Conclusion: Our paper is a reconnaissance of what has been done via "the anterior route" and a notification of the existence of this "surgical window': Present and future of cerebral aneurysm treatment is represented by the endovascular technique. A few selected cases in specialized centers, where transsphenoidal approaches with the aid of the endoscope are routinely performed,may be treated with such techniques alone or in combination with other different procedures. Further studies in large numbers of patients will be required to validate the full benefit of this approach.
DIFFICULTIES IN MANAGING LABOR FORCE DIVERSITY AND SYNERGY MECHANISMS
Authors: Goletiani Ketevan
Published: August 2021

The monograph sets out the issues of the concept of labor force diversity in the process of globalization. The characteristics of ensuring synergy, the importance of synergy and its main determinants, the mechanisms of ensuring the characteristics of the formation and functioning of the production team are analyzed, with a proper focus on the issues of ensuring internal integration in the organization. Research has been conducted on the mechanisms of forming a production team, ensuring its functioning in a diverse workforce (based on the examples of companies).
Marx's critical discourse for thinking about environmental devastation: a perspective beyond the hegemonic imaginaries of sustainability
Authors: Luna-Nemecio Josemanuel
Published: August 2021

The historical development of contemporary capitalism has produced an environmental crisis of global dimensions. The predominance of harmful capital technology determines the deployment of the capital productive forces that overexploit and pollute nature in ways never seen before. In this context, the present study aims to advance towards the reconstruction of the ecological streak of Marxism from Marx's critical discourse, distancing itself from both the hegemonic imaginaries of sustainability. An exploratory analysis of documents was followed to present the arguments that both Conventional Economics (CE) and environmental economics deploy to try to explain contemporary environmental devastation, and subsequently, from this impotent criticism and prey to the logic of the market and value as a social form, it goes on to structure the hegemonic imaginaries of sustainability. In this sense, this paper argues for the need for the critical and scientific discourse of Karl Marx to think about the environmental devastation and the objective conditions of possibility for ecological capitalism; thus, it was possible to address the ecological and political-libertarian dimension of Marx's thought and the task of developing it to break with the hegemonic views of sustainability; and overcome the series of misrepresentations and misstatements that have been made to an alleged anti-ecological view of Marx. The study concluded that, while the struggle for the environment has become somewhat urgent, this front does not replace that of the class struggle; that is, the contradiction between capital and nature does not subordinate to the contradiction between capital and labor but, on the contrary, updates it. Therefore, the validity of Marx's critical discourse is essential, in its genesis and development, to make an ecological criticism of the economics and politics of contemporary capitalism.
La tecnología Big Data en la salud pública.
Authors: Martínez Navarro Juan Alejandro
Published: August 2021

El Big Data es una realidad. Su implantación e influencia en todos los ámbitos supondrá una nueva revolución social, económica y tecnológica. Al respecto, el ámbito de la salud no es ajeno a sus posibilidades. En la actualidad, como consecuencia de la crisis sanitaria originada por la COVID-19, el sistema Big Data está demostrando ser una herramienta especialmente útil para prever la expansión del virus, y establecer estrategias de control. No obstante, el entorno Big Data también presenta importantes retos jurídico-económicos que el Derecho debe afrontar.
Las garantias constitucionales de las notificaciones electrónicas en los procedimientos judiciales y las singularidades en el ámbito Contencioso-Administrativo
Authors: Cerdá Meseguer Juan Ignacio
Published: August 2021

La incorporación de las TIC a los métodos de trabajo de la Administración de Justicia y, en concreto, la imposición legal de tramitar y gestionar los expedientes judiciales utilizando unicamente medios electrónicos, conlleva la aparición de nuevos problemas a los que el Derecho debe dar respuesta para seguir manteniendo un nivel de garantía equiparable para la protección de los derechos de los ciudadanos, en este caso como justiciables. En este trabajo se analizan los problemas que han surgido como consecuencia de la realización de las notificaciones por medios electrónicos en los procedimientos judiciales, el tratamiento jurisprudencial que ha tenido la cuestión en las distintas instancias —en particular por el Tribunal Constitucional—, así como las singularidades que se plantean en el ámbito judicial contencioso-administrativo dada la regulación del procedimiento administrativo común sobre las notificaciones electrónicas. En última instancia, se trata de una cuestión que resulta esencial para que, bajo la apariencia de una mayor eficacia, no se produzca la vulneración de derechos fundamentales como el derecho de defensa y el derecho a la tutela judicial efectiva.
Reseña de las Disposiciones de las Comunidades Europeas
Authors: Millán Moro Lucía
Published: August 2021

Comprende disposiciones generales publicadas en el DOUE, series L y C, durante diciembre de 2019 y el primer trimestre de 2020

.
Reseña de las Disposiciones Generales de la Junta de Andalucía
Authors: Guichot Reina Emilio
Published: August 2021

Se recogen y comentan las disposiciones generales más relevantes de la Junta de Andalucía publicadas en el BOJA en el período de diciembre de 2019 a marzo de 2020.
Reseña de otras disposiciones de interés para la Comunidad Autónoma
Authors: Núñez Lozano María del Carmen
Published: August 2021

Comprende disposiciones publicadas en los boletines de diciembre de 2019 a marzo de 2020.
INFORME: Avances en simplificación administrativa y administración electrónica
Authors: Núñez Lozano María del Carmen
Published: August 2021

SUMARIO:

I. INTRODUCCIÓN Y CUESTIONES GENERALES.II. SIMPLIFICACIÓN ADMINISTRATIVA.III. ADMINISTRACIÓN ELECTRÓNICA.IV. EPÍLOGO.
Repensando la ciudad inteligente desde la innovación social digital ciudadana, Instituto Nacional de la Administración Pública
Authors: Armas Castilla Noel
Published: August 2021

SINOPSIS:

Se trata de una obra que combina la reflexión general y el análisis de casos, en torno al tema de la “ciudad inteligente”, tan en boga (que, entre otros, centró el congreso nacional de profesores de Derecho Administrativo de 2020), al que hemos dedicado otras recensiones de trabajos en números anteriores de esta misma Revista. Se trata de una materia, la del “Derecho de la ciudad” o la ordenación jurídica de la “ciudad inteligente”, que precisa de un enfoque, o, al menos, de un conocimiento multidisciplinar, en el que las tecnologías tienen un papel estelar.
Naturaleza jurídica del encargo de estudios a la Autoridad Independiente de Responsabilidad Fiscal: ¿encargo de ejecución o convenio sui generis?
Authors: Canterla Muñoz Darío
Published: August 2021

La Autoridad Independiente de Responsabilidad Fiscal (AIReF) realiza una labor de supervisión en materia de disciplina presupuestaria mediante informes y opiniones que se financian con el pago de tasas por las instituciones sometidas a su control. Sin embargo, su normativa reguladora permite la extensión de sus actividades en favor de la Comunidades Autónomas mediante la realización de estudios que abonan únicamente las entidades que los encargan. Se trata de una figura infrautilizada como consecuencia, entre otras cosas, de las dudas suscitadas en torno a la naturaleza jurídica del “encargo” del estudio. Desde el punto de vista del encargante se ha planteado que estamos ante un encargo de ejecución del artículo 32 LCSP, con la consiguiente situación de superioridad sobre la AIReF lo que resulta incompatible con el régimen legal de la misma. Desentrañamos la naturaleza jurídica de esta figura como tertium genus próximo al convenio administrativo, pero sometido a regulación especial para lo cual se hace imprescindible un análisis del concepto de convenio de colaboración y del criterio de distinción de esta figura respecto del contrato o el encargo de ejecución, criterio que debe ser la causa del negocio.
Notas de Jurisprudencia.- Tribunal Superior de Justicia de Andalucía
Authors: Rivero Ysern José Luis
Published: August 2021

SUMARIO:

X. DERECHO ADMINISTRATIVO SANCIONADOR. DOMINIO PÚBLICO HIDRÁULICO. PRUEBA INDICIARIA Y VULNERACIÓN DE LA PRESUNCIÓN DE INOCENCIAXIX. PROCEDIMIENTO ADMINISTRATIVO.- RECURSO EXTRAORDINARIO DE REVISIÓN. APLICACIÓN DEL CRITERIO “EXTRAORDINARIO” A EFECTOS DEL RECURSO DE REVISIÓNXIX. PROCEDIMIENTO ADMINISTRATIVO. SUSPENSIÓN. EL RECURSO DE CASACIÓN Y APELACIÓN PENDIENTE CONTRA UN ACTO DICTADO EN PIEZA SEPARADA DE MEDIDAS CAUTELARES QUEDA SIN EFECTO UNA VEZDICTADA SENTENCIA, SEA O NO FIRME, EN LOS AUTOS PRINCIPALESXIX. PROCEDIMIENTO ADMINISTRATIVO. DERECHO ADMINISTRATIVO SANCIONADOR. SANCIÓN POR INFRACCIÓN AL DOMINIO PÚBLICO HIDRÁULICO. PRESCRIPCIÓN DE INFRACCIÓN CONTINUADA: IMPROCEDENCIA ARTC. 327.1 DEL RDPHXXI. SALUD Y SERVICIOS SOCIALES. JURISDICCIÓN CONTENCIOSO ADMINISTRATIVA. AUTO DE LA SALA DE SEVILLA 93/2020 DE RATIFICACIÓN DE RESOLUCIONES ADMINISTRATIVAS DECLARATORIAS DE MEDIDAS EXCEPCIONALES POR LA PANDEMIA DEL COVID 19 POTENCIALMENTE LESIVAS DE DERECHOS FUNDAMENTALES

                                                                                                                                                                                                                                                                                                                                                                                                     .
La Riforma del Governo Locale in Spagna e Italia. La Reforma del Gobierno Local en España e Italia
Authors: Valderrama Rubio José María
Published: August 2021

La reforma del gobierno local en España e Italia es el título de este magnífico volumen en el que se enjuician críticamente las recientes reformas de la Administración local en Italia y en España. Las contribuciones recogidas son el resultado de una investigación colectiva llevada a cabo por administrativistas españoles e italianos de reconocida solvencia y sobrada experiencia. Como fruto, tenemos una obra colectiva que puede considerarse ejemplo de la excelente colaboración ítalo-española que desde hace años se viene produciendo, pues los sistemas español e italiano se prestan a comparación por las características básicas similares que presentan.
Notas de Jurisprudencia.- Tribunal Supremo
Authors: Gamero Casado Eduardo
Published: August 2021

SUMARIO:

I. ACTO ADMINISTRATIVOII. ADMINISTRACIÓN LOCALIII. ADMINISTRACIÓN PÚBLICAIV. BIENES PÚBLICOSVI CONTRATOSIX. DERECHO ADMINISTRATIVO ECONÓMICOXI. DERECHOS FUNDAMENTALES Y LIBERTADESXIIEXPROPIACIÓN FORZOSAXIV. HACIENDA PÚBLICAXV. JURISDICCIÓN CONTENCIOSO-ADMINISTRATIVAXVI. MEDIO AMBIENTEXIX. PROCEDIMIENTO ADMINISTRATIVOXX. RESPONSABILIDAD PATRIMONIALXXI. SALUD Y SERVICIOS SOCIALESXXII. URBANISMO Y VIVIENDA
Crónica de la III Jornada Internacional de estudios mineros «Minería y medio ambiente en el Siglo XXI: Una visión global y de Derecho Comparado»
Authors: Fuentes I Gasó Josep Ramon
Published: August 2021

Los días 15 y 16 de octubre tuvo lugar en el Salón de actos de la Facultad de Derecho de la Universidad de Sevilla la III Jornada internacional de Estudios mineros dedicados a “Minería y medio ambiente en el siglo XXI: una visión global y de Derecho Comparado”, dirigida por las profesoras Encarnación Montoya Martín, Catedrática de Derecho administrativo y Mª Ángeles Fernández Scagliusi, Profesora Contratada Doctora de Derecho Administrativo ambas de la Universidad de Sevilla. Esta Jornada, al igual que las dos primeras ediciones se enmarcan dentro del Proyecto DER 2016-78393-R “La minería extractiva en el siglo XXI; retos jurídicos y medioambientales”.
Accelerating Innovation in Urban Service Delivery in Indian Cities: Lessons from TheCityFix Labs India
Authors: Dhindaw Jaya , Kumar Aarathi , Jain Monica
Published: August 2021

Amidst a rapidly expanding population, Indian cities are unable to keep pace with the growing demand for efficient and adequate urban services especially in the sectors of water, waste and energy. This practice note looks at the WRI India approach of developing a powerful value accelerator platform to scale innovative solutions for gaps in service delivery in collaboration with the quadruple helix stakeholders of government, private sector, academia and citizens. This note summarizes the impact, experiences, and lessons learned from the TheCityFix Labs India held between September 2018 and September 2019, which was supported by the Citi Foundation. This note also assesses the existing innovation ecosystem and the potential for on-the-ground demonstrations and pilot projects to mobilise investment and spark policy reform for the successful delivery of sustainable urban services. This note also sheds light on some of the enabling conditions needed to deliver sustainable infrastructure, and issues that must be addressed to enable innovative small players and new entrants to participate.
Gaya Kepemimpinan Entrepreneur dalam Gereja Masa Kini
Authors: Christianto Josef , Tinggogoy Michael Dendi , Gunarto Sendi , Tedjo Tony , Kadera Yelmima
Published: August 2021

Abstract: Church leaders are one of the main reasons that decide the church will be successful or not. Church leaders nowadays are requested to operate their leadership in such a way to answer every problems that happen on these days. One of the problems faced today is the lack of job opportunities as a result of the ongoing pandemic. The church as a social institution is asked to play an active role in helping to overcome this problem. Therefore we need a leadership style that is able to overcome these problems. In this paper, I will use a qualitative method by reviewing various literature sources to find a leadership style that fits the current context. Entrepreneur leadership style is one of many leadership styles that can be an option to solve any problems that churches are facing nowadays. Entrepreneur leadership style will create many jobs dan surely is going to solve this problems that happen during this pandemic
Abstrak: Pemimpin gereja merupakan salah satu alasan utama yang menentukan berhasil atau tidaknya sebuah gereja. Pemimpin gereja masa kini diminta untuk menjalankan kepemimpinannya sedemikian rupa untuk menjawab setiap permasalahan yang ada saat ini. Salah satu permasalahan yang dihadapi saat ini adalah adalah minimnya ketersediaan lapangan pekerjaan sebagai dampak dari pandemi yang sedang terjadi. Gereja sebagai salah satu lembaga sosial diminta untuk berperan aktif membantu mengatasi hal tersebut. Oleh sebab itu diperlukan sebuah gaya kepemimpinan yang mampu mengatasi permasalahan tersebut. Dalam tulisan ini penulis akan menggunakan metode kualitatif dengan mengkaji berbagai sumber literature untuk menemukan gaya kepemimpinan yang sesuai dengan konteks masa kini. Gaya kepemimpinan entrepreneur adalah salah satu gaya kepemimpinan yang dapat dijadikan opsi untuk mengatasi berbagai macam permasalahan dalam gereja pada masa kini. Gaya kepemimpinan entrepreneur akan membuka lapangan pekerjaan baru dan tentu saja akan membantu menyelesaikan masalah yang sedang dihadapi di masa pandemi ini.
Um planejamento para transposição didática para o ensino de fotossíntese nos anos iniciais do ensino fundamental
Authors: Da Ponte Maxwell Luiz , Oliveira Rosemary Rodrigues
Published: August 2021

A transposição didática (TD) compreende em um conjunto de processos envolvidos nas criações didáticas a partir da transição de um conteúdo de saber para um conteúdo de ensinar. Neste processo devem ser consideradas as relações que ocorrem entre professor-aluno-conhecimento. As estratégias de ensino e demais recursos didáticos são importantes no processo de TD, pois influenciam diretamente na didática. O presente trabalho, de natureza descritiva, relata a experiência vivenciada por um grupo de educadores em formação continuada durante a elaboração de uma proposta de plano de aula para ensino de fotossíntese na educação básica, à luz da teoria da TD. A partir de pesquisa bibliográfica acerca da pesquisa sobre o ensino de fotossíntese, que revelou as dificuldades de abordagem desse conteúdo nos currículos escolares, os educadores elaboraram uma sequência didática para o ensino de fotossíntese para as anos iniciais do Ensino Fundamental, com destaque para a observação de fenômenos naturais mediante o uso de ambientes externos à sala de aula, práticas experimentais e atividades lúdicas que posicionam os aprendizes como principais sujeitos do processo.
Aula de campo: uma estratégia de ensino-aprendizagem interdisciplinar vivenciada no curso de licenciatura em Geografia do IFRN
Authors: Bezerra Heriberto Silva Nunes , Dantas George Luiz Carneiro
Published: August 2021

Este estudo tem como objetivo analisar a importância da prática da aula de campo, como estratégia de ensino-aprendizagem interdisciplinar, afim de contribuir no processo formativo de graduandos do curso de Licenciatura em Geografia do IFRN - Campus Natal Central, além de relatar experiência vivenciada por meio de aulas de campo durante o 5º período do curso. Deste modo, adotamos como percurso metodológico, a pesquisa bibliográfica de natureza qualitativa, averiguando estudos de teóricos de debate sobre ensino-aprendizagem, interdisciplinaridade e aula de campo, tais como: Sacristàn e Gomez (1998), Zanelli (2002) Freire (2003) e Saviani (2003). Ainda, utilizamos da metodologia da observação participante, o que nos permitiu compartilhar percepções e observações apreendidas, através da aula de campo realizada em 2018 na Comunidade Quilombola de Capoeiras dos Negros - RN. Como resultados da pesquisa, constatamos que as aulas de campos são excelentes oportunidades de desenvolver o ensino-aprendizagem interdisciplinar, configurando-se ainda, como um elemento essencial para a formação de graduandos em Geografia por possibilitar a apreensão de conceitos geográficos, de Espaço Agrário, Território e Paisagem, aplicados e compreendidos in loco.
O ensino de história e a investigação do passado como fomentador do pensamento crítico e suas reflexões sobre os presentes encontrados em salas de aula
Authors: Afonso Silva Pablo , De Faria Caio Alexandre Toledo
Published: August 2021

O presente trabalho objetiva um debate a respeito dos múltiplos meios que conduzem as pessoas ao desenvolvimento do pensamento crítico. Assim, destacamos o papel fundamental do corpo docente como responsáveis pela didática e orientar estudantes na intenção de alcançar competências que irão favorecer a elaboração do mesmo pensamento. A didática é fundamental no processo de ensino-aprendizagem quando profissionais da educação trabalham fatos do passado e devem ter consciência daquilo que está sendo mediado, bem como certificar-se que tais informações e fatos possuem caráter científico em tempos de propagação de informações falsas (“fake news”), profissionais da educação não podem se ater apenas ao ato de lecionar, é necessário ir além e, também, buscar ser um investigador do passado. O conteúdo trabalhado em sala precisa sempre fazer com que estudantes “abram suas mentes” para interpretar e compreender o passado, para que assim exercitem a reflexão do presente (mundo, sociedade, relações socioculturais, etc.). Ou seja, devem ser capazes de criar consciência a respeito dos fatos e entender o mundo onde estão inseridos. A investigação de fontes e documentos é processo fundamental para que consigam “reconstruir” o passado, conscientizem-se sobre as lacunas encontradas nas documentações que podem ter sido alterada ou construída de forma a retratar a visão de determinado grupo social. Neste exercício, é possível compreender as intencionalidades presentes nas fontes e seus contextos históricos.