bluuebunny/crossref_metadata_2025 huggingface dataset:
Bestandsentwicklung von Streuobstwiesen im urbanen Raum am Beispiel Duisburgs (1988-2018)
Authors: Messer Johannes
Published: October 2023

Die Zahl der Streuobstwiesen sowie die Zahl der darauf befindlichen Obstbäume ist in Duisburg seit 1988 jeweils um 42 %, die Obstwiesenfläche um 13 % zurück gegangen. Seit 1988 sind 70 Streuobstwiesen neu angepflanzt worden, 220 dagegen sind weggefallen. Bezogen auf die letzten 10 Jahre ergibt sich ein Rückgang von 19 % bei der Anzahl der Streuobstwiesen und 9 % bei der Fläche. Im ländlichen Bereich, wo die meisten Streuobstwiesen vorkommen, war der Verlust in den 30 Jahren sehr groß, während im urbanen Raum Neuanpflanzungen die dortigen Verluste mehr als aufgefangen haben. Bei Naturschutzgebietsflächen in öffentlichem Eigentum sind zahlreiche Streuobstwiesen neu begründet bzw. bestehende ergänzt worden, so dass der Trend positiv ist, während Flächen in privatem Eigentum einen stark negativen Trend aufweisen. Die Hauptgründe für den Verlust an Streuobstwiesen sind das Absterben von Obstbäumen, ohne dass Ersatz gepflanzt wurde (41 %) und die Zerstörung durch Bebauung oder andere Maßnahmen (37 %). Die übrigen 22 % verteilen sich auf Verbrachung bzw. Verbuschung und Intensivierung der gärtnerischen Nutzung. In Bezug auf die nach §42 LNatSchG NRW geschützten Streuobstwiesen (>2.500 m² und >50 m Abstand zu Gebäuden) hat sich der Bestand seit 1988 um 37 % vergrößert, während der Bestand nach den Erfassungskriterien (>1.500 m², mind. 9 Obstbäume) des LANUV (2017) um 21 % abgenommen hat.
Nachweise von Waldelefanten aus der Niederrheinischen Bucht
Authors: Lanser Klaus Peter
Published: October 2023

Backenzähne von Waldelefanten (Palaeoloxodon antiquus) aus dem Bereich der Krefelder Terrasse bei Kempen und Viersen, sowie aus der benachbarten Zone der Niederterrasse zwischen Rheinberg und Kamp-Lintfort werden beschrieben. Manche dieser Zähne zeigen Merkmale, die sie von eemzeitlichen Waldelefantenbackenzähnen unterscheiden. Dies betriff t vor allem Zähne aus dem Bereich der nordöstlichen und der südwestlichen Kempener Platte, die Teil der Krefelder Terrasse ist. Aufgrund der weitgehenden Überschneidungen der Variationsbreiten der Zahnmerkmale bei den mitteleuropäischen Waldelefanten im Laufe des mittleren bis jüngeren Pleistozän ist eine Einstufung in eine der in Frage kommenden älteren Interglaziale schwierig. Vergleicht man aber die vorliegenden Ergebnisse mit den Daten der Backenzähne der zeitgleich existierenden Steppenelefanten aus den gleichen Fundstellen am Niederrhein, deren Entwicklung des Backenzahngebisses offensichtlich schneller vorangeschritten ist, so zeigt sich, dass von Mammuthus trogontherii Backenzahnfunde vorliegen, die gering evolutionierte Zahnmerkmale aufweisen. Diese befinden sich mit ihren niedrigen Werten des Dezimeter-Lamellen-Index an der minimalen Variationsgrenze und mit hohen Schmelzstärken an den maximalen Grenzen der M. trogontherii von Süßenborn, die in die frühe drittletzte (Elster) Eiszeit eingestuft werden. Danach liegen aus dem nordöstlichen Bereich der Kempener Platte und auch von deren südwestlichen Bereich Nachweise sowohl von Steppen- als auch von Waldelefanten vor, die den Übergang von der Cromerwarmzeit zur nachfolgenden Elstereiszeit markieren.
Wasserhaushalt von Industriebrachen am Beispiel des Schachtgeländes Friedrich Thyssen 4/8 in Duisburg
Authors: Meßer Johannes
Published: October 2023

Industriebrachen sind Extremstandorte in Bezug auf die (Oberflächen-)Temperatur und den Wasserhaushalt. Mit Hilfe einer Bodenwasserhaushaltsbilanzierung mittels BOWAHALD wird der langjährige Trend der Wasserhaushaltsgrößen Niederschlag, Verdunstung und Grundwasser-Neubildung, die innerjährliche Situation und der Bodenwassergehalt über die Zeit und die Tiefe visualisiert. Insbesondere die Wuchsbedingungen in den vergangenen Trockenjahren können am Beispiel des Schachtgeländes Friedrich Thyssen 4/8 in Duisburg nachvollzogen werden. Grundlegend sind dabei die Kenntnisse über die bodenkundlichen Kenndaten der technogenen Rohböden.
Grafted and Nongrafted ‘Cherokee Purple’ Tomato Performance in Aquaponic and Hydroponic Greenhouse Production in Oklahoma
Authors: Deer Che , Dunn Bruce L. , Hu Bizhen , Goad Carla , Shoup Daniel E.
Published: October 2023

‘Cherokee Purple’ tomato (Solanum lycopersicum L.) plants are a highly sought-after heirloom cultivar in the United States but are low yielding and highly susceptible to soil-borne pathogens, and may benefit from being grafted. Soilless systems such as aquaponics and hydroponics help increase yield, mitigate disease, and serve as an alternative to field production. The objective of this study was to evaluate a grafting combination of ‘Cherokee Purple’ × ‘Maxifort’ and nongrafted controls in 1.85-m2 media grow beds with hydroponic and aquaponic systems using copper nose bluegill in a greenhouse. Grafting increased stem diameter, leaf count, stem height, flower count, and bud count compared with nongrafted plants. In aquaponics, grafting increased the phosphorus uptake over nongrafted plants grown in the aquaponic system. Grafting resulted in greater fresh (49.2%) and dry (40.0%) shoot biomass, and fresh (33.3%) and dry (42.8%) root biomass. Grafting also increased the uptake of copper and sulfur in the aquaponic systems. The hydroponic systems resulted in greater leaf count, soil plant analysis development, stem height, shoot biomass, and greater boron, phosphorus, potassium, iron, and manganese levels than aquaponic systems. Total fruit number and weight were greater in hydroponic systems than in aquaponic systems by 35.4% and 30.4%, respectively, but fruit splitting was a problem in both. Aquaponics resulted in greater root fresh weight than hydroponics. The nutrients zinc and copper increased with the use of aquaponic systems over hydroponic systems. This research suggests that the type of system can affect growth and nutrient uptake, and ‘Cherokee Purple’ should not be used in a soilless system because of excessive fruit splitting, leading to unmarketable fruit and low yield, unless environmental conditions can be managed during the heat of the summer.
Microbial Community Structure in Soilless Substrates Used for Nursery Crops
Authors: Valles-Ramirez Silvia , Altland James E. , Testen Anna L. , Poelstra Jelmer W. , Michel Frederick C.
Published: October 2023

Soilless substrates are widely used for plant cultivation. However, little is known about how soilless substrate components, plant growth, or their interactions impact microbial communities in soilless media. The objectives of this study were to analyze microbial communities in typical pine bark substrates used for nursery crop production and determine the impacts of substituting peat with a compost substrate, and planting, on microbial community dynamics over a production cycle. Three soilless substrate mixtures were compared. The substrate mixes consisted of 80:20:0, 80:10:10, and 80:0:20 (volume:volume:volume) ratios of pine bark:peatmoss:leaf compost, respectively. One set of each treatment was planted with a single birch (Betula nigra ‘Cully’) liner and another set was not planted. The treatments (n = 3) were maintained in a nursery production setting, and samples were taken after 0, 1, 2, 3, and 4 months. Bacterial and fungal communities were characterized by sequencing polymerase chain reaction-amplified 16s rRNA genes and internal transcribed spacer regions. Initially, the two substrate mixtures that contained compost had more phyla than the substrate mixture that only contained peat and bark. After 1 month, microbial communities in all treatments contained similar phyla, but at different relative abundances based on the amount of compost they contained. Over time, Nitrosomonadaceae and Acetobacteraceae were the most abundant bacterial families in substrate mixes containing 10% and 20% compost, but they were absent from treatments without compost. The communities were dynamic and changed the most over the first 2 months. Microbial communities and their dynamics were similar between planted and unplanted treatments. Planting had less of an effect on microbial communities than compost amendment. Among the fungal communities, differences were observed based on both compost amendment and plant presence. Ascomycota and Basidiomycota were the most abundant fungal phyla and resembled those originally in the peat and compost, respectively. These findings could be used to understand the importance and dynamics of specific microbial communities present in substrate components and how they develop during greenhouse production.
CHALLENGES OF ISLAMIC EDUCATION MANAGEMENT IN THE DIGITAL ERA
Authors: Muttaqin Imron
Published: October 2023

This research aims to explorer the of islamic education management in the digital era and the ‎hurdles faced by Islamic education management in adapting to the digital era. A qualitative ‎paradigm and library research design used. The data collection technique performed in this ‎study involves document analysis, encompassing journal articles, proceedings, books, research ‎reports, online news sources, and other relevant materials. The data analysis method employed ‎is content analysis. The findings of present study reveal that the constraints in Islamic ‎education management's response to the digital era primarily revolve around the quality of ‎human resources. These resources have yet to harness digital technology to its fullest ‎potential, resulting in an inability to provide comprehensive digital-based Islamic educational ‎facilities. Furthermore, the competence of Islamic education teachers poses a significant ‎obstacle. Many educators have yet to effectively utilize digital-based learning media in their ‎instructional processes, even as a growing number of students display proficiency in digital ‎technology. Consequently, Islamic education management in the digital era remains ‎comparatively behind general education management.
Technological study of oil-filled polyamide parts
Authors: Bychkovskiy V. S.
Published: October 2023

The work develops a technology that provides an increase in the operational properties of the surface layer of ﬁnished polyamide parts in order to increase wear resistance without affecting their load-bearing capacity. To study the impregnation of a polyamide-6 sample with a mixture of motor oil and hexane, full-scale experimental research was carried out following the algorithm developed using a laboratory unit. In the work, the program code for the control board was used that operates in conjunction with the PowerGraph software for processing the acquired data. During the study, a method for drying samples with the dimensions of 4x50x50 mm in a high-frequency electric ﬁeld (up to 2500 Hz) was selected in order to heat and remove moisture from the polymer evenly within a short period. Darcy's law describing the process of impregnating polyamide with oil was used. In order to increase the efﬁciency of impregnation and reduce the viscosity of the ﬁller, its optimal composition was determined: a mixture of M-8B engine oil and hexane at a ratio from 8:2 to 4:6, respectively. A setup based on the UZP-2500 device was developed and automated by introducing a control board and sensors to measure the strength of the anode current and temperature of a polyamide sample. In addition, a regulating device with the power of a high-frequency generator operating in the current range of 0.25–0.35 A was built into the unit. Under the processing modes (the temperature of the polyamide sample is 75°C; the hexane content in the mixture is 40%), a method for controlling the drying temperature was established by switching off the high-frequency generator for 700 ms. The research results allow a new technological process of oil ﬁlling in polyamide parts operated in friction units to a given depth at known values of the impregnation rate to be developed. These results can help to increase the wear resistance and, consequently, the service life of the surface layer of ﬁnished polyamide parts used in railway wagon trucks exposed to friction and wear.
Influence of impact-centrifugal hardener on microhardness of workpiece surface made of aluminium alloys
Authors: Kazimirov D. Yu. , Isachenko A. S.
Published: October 2023

This  article  develops  a  tool  for  impact-centrifugal  processing  and  establishes  processing  modes  that increase the microhardness of the surface. An experimental study was carried out, where the tightening force, the number of working strokes, the rotation frequency of the hardener and the motion were proposed as technological parameters of impact-centrifugal processing. The experiments were carried out using ﬂat machine-cut samples based on aluminium alloy D16T. A prototype of the rotary hardener with the standard fastening was designed and manufactured. During the experiment, it was revealed that, for the variation in average microhardness, the contribution of the rotation frequency is higher than that of the longitudinal motion. A signiﬁcant inﬂuence of the tension on the surface microhardness is noted: following processing with a rotary hardener, it increases. It is shown that, to a greater extent, this increase depends on the technological tightening force and to a lesser extent on the rotation speed of the tool; it is recommended to increase these parameters. It was found that a 2-fold increase in tightening force resulted in an increase in microhardness by 70 HV 0.1, while increasing the tool rotation speed by 200 rpm led to an increase in microhardness by 42 HV 0.1. However, technological parameters must be selected taking into account the operability of the hardener. It was shown that the longitudinal motion has little inﬂuence on the increase in microhardness. The prototype of the designed tool can be used for processing at milling, boring, and grinding machines with computerised numerical control through a standardised fastening unit. This ensures sufﬁcient technological ﬂexibility and allows it to be used for reinforcing ﬂat surfaces and ﬁllet radii. The forecasted increase in the surface microhardness of the D16T sample using a rotary hardener amounts to 38.5% of the initial value in the experimental area with satisfactory productivity.
Processing of experimental results for super-cavitating flow past cone by local polynomial regression (LOESS)
Authors: Grishaev D. A. , Radzyuk A. Yu. , Istyagina E. B.
Published: October 2023

The aim of the study is to deﬁne the correlations describing the ﬂow parameters during super-cavitating ﬂow past an obstacle, often found in various elements of thermal power systems and units, as well as to offer a simple and reliable method for analysing experimental datasets for the ﬂows in such systems. Full-scale modelling of cavitation processes was carried out using a circulating hydrodynamic set-up. The process of super-cavitation ﬂow past cones with base diameters of

15.45 and 21.75 mm and opening angles of 154° and 127°, respectively, in a working section having a diameter of 30 mm, was investigated. The obtained experimental data comprises a four-dimensional array that describes the dependence of the cavity length arising behind the obstacle and the pressure inside the cavity on the ﬂow rate and temperature. Due to the complexity of processing and visual representation, this array was divided into two three-dimensional arrays. The approximation of the obtained data was carried out by locally estimated scatterplot smoothing (LOESS). The results demonstrated that the transition from vapour–gas to vapour cavitation is independent of the geometric dimensions of the obstacle. In addition, the dependence corresponding to the transition process to vapour cavitation was obtained by processing the experimental data. An empirical equation describing such a transition is proposed. Therefore, the method of smoothing a locally estimated scatter plot (local polynomial regression) illustrates the correlation between the processed data. The proposed empirical equation allows the critical length of the cavity to be determined that corresponds to the transition from vapour–gas to vapour cavitation and can be used for the design and operation of thermal power equipment.
Improving decomposition efficiency of aluminate liquor through preparation and introduction of active seed during the decomposition process
Authors: Alekseev K. D. , Loginova I. V. , Chetyrkin I. E. , Gostinskaya I. S.
Published: October 2023

The aim is to determine the optimal parameters for the preparation and dosing of active seeding (ﬁnely dispersed aluminium hydroxide) to control the decomposition of aluminate liquor in the Bayer process. Laboratory tests were carried out on a temperature-controlled rotating water bath (Intronics, Australia). The granulometric analysis of the obtained aluminium hydroxide was carried out using the VideoTest image analysis system and a Carl Zeiss Axioskop-40 microscope (Germany) supplemented with Image Analysis software. Finely dispersed aluminium hydroxide (active seed) was obtained by mixing an alkaline aluminate solution and recycled water in various ratios. The ﬁlling order of solutions was determined – ﬁrst, recycled water, followed by cooled alkaline aluminate solution. Optimal conditions for the preparation of active seeding were established: the solution was held for 48–72 hours at 50°C at an aluminate solution to recycle water ratio of 60% and 40%, respectively. The dosing of the obtained active seeding into the head decomposers was examined. It was demonstrated that using active seeding in continuous decomposition mode stabilises the particle-size distribution of the production-grade aluminium hydroxide. The presence of active seeding allowed the initial decomposition temperature to be reduced from 62°C to 58°C without altering the particle-size distribution of aluminium hydroxide. In addition, the study conﬁrmed the positive effect of active seeding on increasing the degree of decomposition of the aluminate liquor up to 1.5%. Therefore, based on the research results, it was established that the use of the new method for preparing and dosing active seeding into the main decomposers leads to the intensiﬁcation of the decomposition process in alumina production.
Hydrometallurgical processing of ash and slag waste
Authors: Razmakhnin K. K. , Khatkova I. N. , Shumilova L. V. , Nomokonova T. S.
Published: October 2023

This work assesses the possibility of hydrometallurgical processing of ash and slag waste in order to extract rare and rare earth elements. The ash and slag waste from the Chita CHPP-2 combined heat and power plant was used as a research object. Inductively coupled plasma atomic emission spectroscopy (ICP-AES) was used to determine the elemental chemical composition of coal combustion products. To preconcentrate rare and rare earth elements, magnetic separators were used to isolate the -0.5+0.3 mm and -0.3+0.1 mm grain size fractions of ash and slag waste. The leaching of rare and rare earth elements from the studied samples was investigated using sulfuric, hydrochloric, and nitric acids, as well as an aqua regia solution, in combination with simultaneous ultrasonic exposure. It was determined that electromagnetic separation of the -0.5+0.3 mm and -0.3+0.1 mm grain size fractions of ash and slag waste signiﬁcantly concentrates rare and rare earth elements in the magnetic fraction, including titanium (up to 25%), zircon (up to 33%), yttrium (up to 50%), lanthanum (up to 150%), and cerium (up to 5%). It was determined that an increase in the duration of ultrasonic treatment during the leaching of metals from ash and slag waste with sulfuric acid resulted in a uniform 7.25-fold increase in gallium content (from 0.008 to 0.058 g/dm3). Additionally, when decomposed with aqua regia, a 3-fold concentration of the same element was observed (from 0.008 to 0.024 g/cm3), while ultrasonic treatment offered only a slight increase in concentration. When leaching with sulfuric acid (the duration of ultrasonic exposure is 5 minutes), a 4-fold increase in the rubidium content was observed (from 0.108 to 0.457 mg/dm3). Therefore, the most effective method for extracting rare and rare earth elements from the ash and slag waste of Chita CHPP-2 involves acid leaching combined with electromagnetic separation and ultrasonic pulp leaching.
The Role of Communication Campaigns in Keeping the Cultural Identity of Small Cities
Authors: Eremina A. D.
Published: October 2023

The topic of the article is determined by the growing attention to the origins of the formation of culture and its reflection in various architectural forms, as well as by the desire to preserve the small towns in Russia. The focus put on the cultural potential of such cities will create the basis for the development of tourism within the country and economic growth. Modern processes of globalization, erasing geographical boundaries, cause irreparable damage to the cultural sovereignty of the places. In this regard, to revive small towns in Russia it is necessary to carry out comprehensive measures at the federal and regional levels, as well as the comprehensive interdisciplinary research in this area. The manuscript analyzes the cultural identity of the small town of Ostashkov (Tver Oblast, Russia) based on an analysis of the state of the urban environment and its public spaces. To preserve the cultural identity and originality of the city, the author proposes a communication campaign based on territorial branding aimed at increasing the level of patriotism, stimulating the consumption of local products, increasing the recognition of the region and its tourist attractiveness. When implementing a communication campaign, it is necessary to take into account the individual psychological, socio-psychological characteristics of the main segments of the target audience, and overcome cultural, organizational and other barriers. As part of a communication campaign to preserve the cultural identity of the city, the author proposes to integrate the available historical information about the city of Ostashkov, its geographical location and city symbols to promote the brand of the small city.
Unraveling the dynamics of climate: empirical evidence from the Indian state of West Bengal
Authors: Das Soumik , Goswami Kishor
Published: October 2023

Understanding climate variability and trends is crucial for managing a host of sectors. Everything from water availability to agricultural productivity is affected by variability and trends in temperature, rainfall, evapotranspiration, and solar radiation. Nevertheless, their dynamics have seldom been explored together, especially in India. To address this gap, the present study investigates the variability, trend, and magnitude of those parameters individually and concurrently using fractal dimension and non-parametric statistics over the Indian state of West Bengal from 1951 to 2020. The results show a south–north gradient in overall climate variability. The Gangetic West Bengal (GWB) is experiencing higher variability, along with a rising minimum temperature (≥0.008 °C year−1) and declining rainfall (≥− 1 mm year−1). Though the Sub-Himalayan West Bengal as a whole shows less variability, its foothills reveal modest variation coupled with increasing maximum temperature (≥0.005 °C year−1), reference evapotranspiration (≥0.4 mm year−1), and decreasing rainfall in the post-monsoon and winter seasons. Based on the results, we identified the western GWB, the Sundarbans, and the sub-Himalayan foothills as the most vulnerable areas and recommended proactive crop and water management strategies. Finally, we underline the need to analyze climate dynamics holistically to manage climate-sensitive sectors efficiently and sustainably.
From creeping crisis to policy change: The adoption of drought preparedness policy in Brazil
Authors: Cavalcante Louise , Pot Wieke , van Oel Pieter , Kchouk Sarra , Neto Germano Ribeiro , Dewulf Art
Published: October 2023

This paper aims to understand the national-level policy change that occurred in Brazilian drought management, whereby the policy shifted from reactive crisis management to a drought preparedness approach. We found that a combination of factors supported the policy change, such as the interplay of multiple drought events in different regions of the country, the length and timing of these events, attention paid to the issue, and the role of policy entrepreneurs and political entrepreneurs in connecting solutions to the problem. The analysis is based on the multiple streams framework (MSF), which includes two windows of opportunity: an agenda window, to account for the juncture at which the drought issue appeared on the political and public agenda; and the decision window, when a drought preparedness instrument was designed and adopted. We contribute to the literature on policy change in the wake of a disaster by showing how a long-duration event sparked policy change and by shedding light on the role of creeping crises as focusing events; and we contribute to the MSF literature by analytically distinguishing the features of the agenda and the decision window and by applying the theory to a Latin American context.
La psicoterapia cognitivo-narrativa en un caso de una configuración prototípica de organización del significado depresivo
Authors: Cortés-Zapata Eduar , Álvarez-Posada José
Published: October 2023

Introducción: La psicoterapia cognitivo-narrativa es una de las últimas psicoterapias breves del paradigma cognitivo; este enfoque del modelo constructivista reúne una episteme bajo cuatro conceptos centrales: existencia como intencionalidad, conocimiento como proceso de decodificación activo o de significado, narrativa como la lógica de la existencia y cultura como proceso interpersonal. Objetivo: Valorar la eficiencia de proceso terapéutico basado en la psicoterapia cognitivo-narrativa desde el modelo constructivista. Método: La metodología consistió en un estudio de caso, de 22 sesiones cada una de una hora, una vez por semana. Resultados: Los resultados muestran que la persona es más coherente en su estructura y movimiento narrativo, un proceso narrativo más complejo y un contenido narrativo más flexible; es decir, que puede vivir creativamente, construyendo su experiencia en su complejidad y sus posibilidades. Conclusiones: La psicoterapia cognitivo-narrativa breve del paradigma cognitivo muestra gran efectividad frente a la configuración prototípica de organización del significado depresivo de la paciente.
Patient: From Participant to Partner in Clinical Research (Preprint)
Authors: KUmar Vivek , Yadav Ashok Kumar , Gondil Vijay Singh , Sharma Amita , Sharma Komal , Mohania Piyush , Kohli Harbir Singh , Jha Vivekanand
Published: October 2023

UNSTRUCTURED

Developing regions of the world face proportionally higher burden of various diseases but lack adequate infrastructure for conducting high quality clinical research. Lack of central mechanisms that ensure collection and collation of data generated at various sources often lead to incomplete source documentation for clinical research in low resource settings. However, irrespective of site of generation (various clinics, hospitals, laboratories etc.), the clinical data pertaining to one patient converges at that patient. Traditionally, patients’ role in clinical studies has been that of an informed participant. If we were to develop a model where the patient’s role is transformed from just being a participant to manager of her clinical data, we would be able to ensure completeness of source documentation for clinical research. For implementing this concept, we have developed mobile applications that are linked to clinical research databases and have interfaces for participant and study staff. Study participants can upload their clinical data as pictures, files, text etc. and use the mobile application as their digital repository. Data uploaded by participant becomes available in the indexed clinical database and can be used by the study staff to populate relevant data fields in study databases. This also aids data validation and verification in the context of clinical research. Though dependent on availability of internet and smartphones, this simple approach has potential to enhance the quality of clinical research in low resource settings.
Estudio etnobotánico y evaluación de la capacidad antioxidante de dos especies del género Clinopodium localizadas en el estado de Oaxaca, México
Authors: García-Reyes Esmeralda Melissa , Rojas-Olivos Alejandra , Toral-Sánchez Eduardo , Cruz-García Gabriela
Published: October 2023

El estado de Oaxaca en México, presenta una gran diversidad de culturas y especies vegetales, situación que convierte el conocimiento ancestral que se tiene sobre el uso de las plantas en una herramienta de utilidad para la conservación y sustentabilidad. El objetivo de este estudio fue además de documentar el uso tradicional de Clinopodium macrostemum (Cmc) y Clinopodium mexicanum (Cmx), determinar la capacidad antioxidante (CA) de sus extractos. Se aplicaron entrevistas en las localidades de Santiago Apoala Nochixtlán y Tlaxiaco, Oaxaca, además se elaboró un mapa de distribución apoyados en el sistema ArCGis versión 10.4.1. El material vegetal colectado se deshidrató para obtener los extractos hidrometanólicos (CmxHMet, CmcHMet) e hidroetanólicos (CmxHEt, CmcHEt) al 80% (v/v), la CA se determinó mediante las técnicas de ABTS y FRAP. El resultado destaca el uso medicinal de las especies citadas. El mayor rendimiento se obtuvo del extracto hidrometanólico de C. macrostemum con un 17.68%, sin embargo, demostró mayor CA C. mexicanum (Cmx-HMet) con un IC50 de 0.7869 mg/mL para el ensayo ABTS y para FRAP con un valor de 1687.066 ± 7.055 mM de Fe2+; de la investigación se concluye que a pesar de ser dos especies que mantienen una similitud en su aprovechamiento, Cmx-HMet presenta una mayor  CA  y potencial para ser utilizada en la farmacología, la biotecnología y las tecnologías verdes.
Identificación de factores asociados al aumento de la expresión génica de CRABP1 en pacientes con lesiones intraepiteliales escamosas y cáncer de cuello uterino
Authors: Arellano-Ortiz Ana Lidia , Jiménez-Vega Florinda , Salcedo-Vargas Mauricio , Muñiz-Hernández Saé
Published: October 2023

La unión celular de la proteína con el ácido retinoico-1 (CRABP1) facilita el metabolismo de los retinoides y de su expresión anormal podría resultar en diversos cánceres. Para el caso que nos ocupa se evaluaron muestras de las biopsias de pacientes con cáncer de cuello uterino (CC) y con lesiones intraepiteliales escamosas de alto (HSIL) y de bajo grado (LSIL) (n= 66), por lo que para realizar el estudio se obtuvo la información clínico-patológica de las mujeres. La expresión del gen CRABP1 se examinó mediante RT-PCR y la proteína por inmunohistoquímica (IHC). La expresión de CRABP1 resultó ser más baja en el grupo HSIL significativamente (p = 0.008). La expresión proteica de CRABP1 se observó en el 90.3% de los tejidos, y en el CC su ausencia fue de un 9.7%. El aumento de la expresión génica, así como la disminución de la cantidad de proteína en este tipo de cáncer varía en diferentes situaciones médicas de acuerdo a lo observado: en el sobrepeso/obesidad aumenta la expresión génica (p= 0.019), pero no en la proteína (p = 0.053). Además, se mostró un aumento de la expresión CRABP1 con una concentración alta de retinol (p= 0.047) y la presencia de HVP-16 (p= 0.011) (expresión génica pero no la proteína, p > 0.05). Pacientes con menopausia se asociaron con la ausencia/débil inmunotinción de la proteína CRABP1 (p= 0.008). Finalmente, concluimos que CRABP1 y los factores asociados pueden ser útiles como biomarcadores para rastrear la progresión y la persistencia del cáncer de cuello uterino en el tejido.
Modelación numérica para la determinación de la cota máxima de inundación, en la Ensenada de Utría desde Playa de Diego hasta Ciudad El Valle-Chocó
Authors: Camacho De Angulo Yineth Viviana , Oviedo Barrero Fernando
Published: October 2023

Este estudio aborda el cálculo del régimen medio y cota máxima de inundación en la ensenada de Utría - Chocó; mediante la integración de información batimétrica y línea de costa, y teniendo en cuenta los cambios geomorfológicos representativos que convergen en las dinámicas costeras. Con este fin, se utilizó el modelo hidrodinámico H2D para simular y analizar 19 años de marea. Como resultado se obtuvo los armónicos de marea para siete mareógrafos sintéticos ubicados a lo largo de la zona de estudio, con profundidades inferiores a 15m; los cuales fueron insumos para el cálculo del régimen medio, y las cotas máximas de inundación. El modelo H2D se calibró y validó con un R2 0.9879 para el mareógrafo ubicado en Bahía Solano (06.2328 N, 77.4109 W). Se generaron los valores de régimen medio y la cota máxima de inundación mostrando una cota máxima promedio de 4.3075 m.s.n.m, información de importancia para la construcción de la línea de más alta marea en la zona mencionada; con el fin de realizar el trazado de jurisdicción, y permitiendo que la Dirección General Marítima ejerza con propiedad el control de los bienes de uso público.
Desarrollo de modelos de velocidad de operación de carreteras en terreno llano en Costa Rica
Authors: Medina García Liosber , Delgado Martínez Domingo Ernesto , Ulate Zárate José María , García Depestre René Antoliano
Published: October 2023

Uno de los métodos más utilizados en las últimas décadas para evaluar la influencia del trazado en la seguridad vial son los estudios de consistencia del trazado. Al evaluar la consistencia del trazado es necesario contar con los perfiles de velocidad de operación del nuevo proyecto o de la carretera existente. Generalmente, al realizar los estudios se emplean modelos de velocidad de operación existentes, que han sido desarrollados para otras condiciones, regiones o países. Sin embargo, los modelos de estimación de velocidad deben ser desarrollados o calibrados considerando las condiciones locales y, además, deben estar sujetos a revisiones a lo largo del tiempo. Por tanto, las ecuaciones obtenidas para una condición no deben ser extrapoladas sin análisis previos, por lo que las condiciones locales deben analizarse de manera particular. El objetivo del trabajo es desarrollar modelos de predicción de velocidad de operación propios que consideren las características del trazado geométrico de las carreteras en terreno llano y las condiciones del parque vehicular del país. El procedimiento metodológico propuesto para determinar los modelos de velocidad de operación consta de las siguientes etapas: análisis de las carreteras del territorio y definición de parámetros fijos a investigar, determinación de los sitios y selección de la muestra, mediciones de velocidad en los sitios seleccionados, desarrollo de los modelos de predicción del perfil de velocidad y la validación de los modelos de desarrollados. Con los resultados de la investigación, se logra por primera vez en Costa Rica desarrollar modelos de predicción de las velocidades de operación de las rutas nacionales con características rurales en terreno llano. Además, se demuestra que las ecuaciones propuestas presentan menores errores de estimación, si se comparan con algunos de los modelos más usados en el ámbito internacional.
How effective is camera trapping in monitoring grassland species in the southern Pampas ecoregion?
Authors: Trofino-Falasco Clara , Simoy María V. , Aranguren María F. , Pizzarello María G. , Cortelezzi Agustina , Vera David G. , Simoy Mario I. , Marinelli Claudia B. , Cepeda Rosana E. , Di Giacomo Adrián S. , Berkunsky Igor
Published: October 2023

We assessed the efficiency of camera trapping in monitoring bird and mammal species in the grasslands of Tandilia Mountains by calculating the naïve occupancy, capture rate, and time to the first detection for each species. We compared the observed richness with the reported richness from online databases. We performed species accumulation curves to estimate the sampling effort necessary to detect bird species. We detected 50 bird and 15 mammal species. The top 5 bird species (Chalk-browed Mockingbird, Rufous-collared Sparrow, Rufous Hornero, Great Pampa-Finch, and Spotted Nothura) accounted for 48% of all detected individual birds, with naïve occupancy of 21-25% and mean times for the first detection between 6 and 9 days. The top 5 mammal species (Pampas fox, Large hairy Armadillo, European hare, Molina’s hog-nosed skunk, and Geoffroy’s cat) accounted for 81% of all detected individual mammals, with naïve occupancy of 32-77% and mean times for the first detection between 4 and 7 days. A sampling effort of 2 weeks was the optimal balance between effort and result qualities. We detected all the reported richness of mammals and half of the reported grassland-associated birds. We provide valuable information for future grassland species monitoring with camera trapping in Neotropical grasslands.
Conservación de bosques de montaña a través de manejo ecoturístico en San Cristóbal de Las Casas, Chiapas México
Authors: Domínguez-Vera José Gerardo , Ruiz-Montoya Lorena , Castillo-Santiago Miguel Ángel , Álvarez-Gordillo Guadalupe
Published: October 2023

Los bosques de montaña de Los Altos de Chiapas se han fragmentado y han modificado su estructura y composición florística debido a la tala, la agricultura y el crecimiento urbano. Una alternativa que se ha promovido para su conservación es el ecoturismo. El objetivo fue diagnosticar la efectividad del manejo ecoturístico en la conservación de los bosques de montaña de los Parques Ecoturísticos Arcotete, Grutas de Mamut y Grutas de Rancho Nuevo del municipio de San Cristóbal de Las Casas. Se registraron variables de estructura vertical, horizontal y de uso del bosque en parcelas de 1,000 m2. Se calcularon índices de diversidad de números de Hill y un índice de condición ecológica por parcela a través de un modelo determinístico. Se procesaron imágenes de satélite de los años 2005, 2011, 2015, 2021 para obtener cambios en los usos de suelo. Arcotete y Grutas de Mamut tuvieron un índice de condición ecológica del bosque de 0.5 y Grutas de Rancho Nuevo de 0.3, lo que indica que los 2 primeros tienen un estado de conservación intermedio. Se concluye que el ecoturismo permitió el incremento en la cobertura forestal, que se traduce en una condición ecológica baja y moderada.
La Eficiencia Técnica de los sistemas de salud: una respuesta a la mortalidad por la pandemia
Authors: Suin Guaraca Luis
Published: October 2023

La pandemia de Covid-19 ocasionó una inusual tasa de mortalidad poblacional. El presente trabajo pretende determinar la existencia de relación causal y su incidencia entre la Eficiencia Técnica (ET) de los sistemas de salud y la tasa de mortalidad por Covid-19. Usando la metodología Análisis Envolvente de Datos (DEA, por sus siglas en inglés) y los métodos de ajuste MCO, MCG y MC2E, en 108 países agrupados de acuerdo al gasto en salud per cápita, se encontró que un incremento en un 1% en la ET de los sistemas de salud de los países analizados, disminuye entre 61 y 127 fallecidos por Covid-19 por cada cien mil habitantes, concluyendo que la eficiencia en el gasto resultó trascendental en la prevención de la mortalidad ocasionada por la pandemia.
“Ser del interior” y estudiar en la educación superior urbana
Authors: Humberto Soriano Gonzalo Víctor
Published: October 2023

Este artículo problematiza las resignificaciones identitarias de jóvenes indígenas y rurales que se encuentran cursando una carrera de grado en la Universidad Nacional de Salta, Argentina. El objetivo es ahondar en los procesos de desigualdad materiales y simbólicos que este sector poblacional atraviesa en el nivel superior a través de discursos y prácticas que intentan forjar patrones identitarios y de comportamientos que se corresponden con características urbanas y occidentales. Para ello, se recuperan voces de cinco estudiantes provenientes del departamento San Carlos, Salta, que adscriben una identidad indígena y/o rural y se desplazan territorialmente para continuar sus estudios. De este modo, se concluye que estos/as jóvenes transitan por tramas complejas de resignificación identitaria al encontrarse en escenarios donde lo “propio” es tensionado con lo cultural de unos/as poco/as.
Democracia y desarrollo
Authors: Fuentes Alcalá Mario Luis , Hernández Engrandes Cristina
Published: October 2023

Este texto plantea que la construcción de un nuevo curso de desarrollo requiere, como condición fundamental, más democracia y que esto solo puede lograrse mediante la articulación de un acuerdo social y político nacional de gran calado. Se reflexiona y discute acerca de las posibilidades que tiene el país para alcanzarlo y se expone, con base en la experiencia histórica, que la construcción de este acuerdo puede seguir dos cursos radicalmente distintos.
La reorganización de la política económica en la difícil situación presente
Authors: Capraro Rodríguez Santiago , Panico Carlo , Torres González Luis Daniel
Published: October 2023

Las economías se encuentran en un periodo de incertidumbre política y económica. A los problemas causados por las crisis financieras y la pandemia, se han añadido aquellos provocados por el conflicto armado entre Rusia y Ucrania. Al mismo tiempo, la emergencia climática, ambiental y epidemiológica solicitan reformas de gran alcance.
Desigualdad en la distribución del ingreso: México 2016 a 2020
Authors: Cortés Cáceres Fernando Alberto , Valdés Cruz Servando
Published: October 2023

En el año 2016 inició una nueva etapa de la Encuesta Nacional de Ingresos y Gastos de los Hogares (ENIGH) que, en conjunto con los resultados de los levantamientos de 2018 y 20201, proporcionan una serie comparable de ingresos que permite dar cuenta de la evolución de la desigualdad en el ingreso durante el último tramo de la segunda década del presente siglo.
Automatic Detection of Genetic Diseases in Pediatric Age using Pupillometry
Authors: Deepthi Ganji , Rani Dr. V. Uma
Published: October 2023

Abstract: Inherited retinal diseases cause severe visual deficits in children. They are classified in outer and inner retina diseases, and often cause blindness in childhood. The diagnosis for this type of illness is challenging, given the wide range of clinical and genetic causes (with over 200 causative genes). It is routinely based on a complex pattern of clinical tests, including invasive ones, not always appropriate for infants or young children. A different approach is thus needed, that exploits Chromatic Pupillometry, a technique increasingly used to assess outer and inner retina functions. This paper presents a novel Clinical Decision Support System (CDSS), based on Machine Learning using Chromatic Pupillometry in order to support diagnosis of Inherited retinal diseases in pediatric subjects. An approach that combines hardware and software is proposed: a dedicated medical equipment (pupillometer) is used with a purposely designed custom machine learning decision support system. Two distinct Support Vector Machines (SVMs), one for each eye, classify the features extracted from the pupillometric data. The designed CDSS has been used for diagnosis of Retinitis Pigmentosa in pediatric subjects. The results, obtained by combining the two SVMs in an ensemble model, show satisfactory performance of the system, that achieved 0.846 accuracy, 0.937 sensitivity and 0.786 specificity. This is the first study that applies machine learning to pupillometric data in order to diagnose a genetic disease in pediatric age.
The Use Of Sharia Fintech On MSMEs Performance: Mediation Of Interest In Use Of Transactions
Authors: Latifah Sri Wahjuni , Waluya Jati Ahmad
Published: October 2023

Purpose: This study was conducted to examine the use of Sharia fintech mediated by an interesting use of transactions to improve the performance of MSMEs.
Methodology/approach: The survey was conducted on MSMEs in Malang Raya. The sampling technique using purposive sampling obtained 70 respondents. Data analysis and hypothesis testing using SEM assisted by Smart PLS software.
Findings: The results showed that ease of use and trust have an effect on interest in using Sharia Fintech. However, service features and risk security have no effect on interest in transactions using Sharia fintech. This study proves that the use of Sharia Fintech with the mediation of interest in use is proven to have an effect on the performance of MSMEs.
Practical implications: The implication of this research for MSMEs is that MSMEs should choose Sharia fintech under the supervision of the OJK. The implication for Sharia fintech companies is that they can create features that are easy for users to understand.
Originality/value: This study offers a mediation model of interest in the use of transactions on the use of Sharia fintech and the performance of MSMEs
Perilaku Disfungsional Auditor Dalam Profesionalisme Akuntan
Authors: Ferina Ika Sasti , Ubaidillah  , Ana yulianita
Published: October 2023

Purpose: The research objective was to measure and analyze the effect of professional skepticism, internal locus of control, external locus of control, professional commitment and profession ethics on auditor dysfunctional behavior at KAPs registered in the IAPI Directory for the South Sumatra Region.
Methodology/approach: The data collection method uses a questionnaire technique with junior and senior auditor respondents who meet the sample criteria at the registered KAP. Data analysis used SEM PLS analysis technique.
Findings: Based on the results of the analysis, it shows that Professional Skepticism, External Locus of Control, and Profession Ethics have a significant influence on Auditor Dysfunctional Behavior. Meanwhile, Internal Locus of Control and Professional Commitment do not have a significant effect on Auditor Dysfunctional Behavior.
Practical implications: This research has practical implications for Public Accounting Firms, especially KAPs that are sampled in this study so that the results of this study can be used as material for consideration regarding factors that influence auditor dysfunctional behavior at work, both in the internal and external environment of the office.
Originality/value: This study includes the variable professional commitment as an update in research on the topic of dysfunctional auditors.
Innovative Bahavior In Higer Education Institution: Does Performance Measurement Systems Matters?
Authors: Nazaruddin Ietje , Hasna Afifah , Yani Indah
Published: October 2023

Purpose: This study aims to empirically examine the direct and indirect effects of performance measurement systems on innovative behavior and analyze the role of psychological empowerment as an intervening variable.
Methodology/approach: The study adopts a survey research design, utilizing a questionnaire distributed directly to respondents. Data were collected from 133 respondents representing eight universities in Yogyakarta. A purposive sampling technique was employed to select the sample. Data analysis was conducted using structural equation modeling.
Findings: The results indicate that performance measurement systems directly impact innovative behavior. Additionally, the study reveals an indirect influence of performance measurement systems on innovative behavior through psychological empowerment.
Practical implications: The study highlights the importance of developing effective performance measurement systems and creating an environment that supports psychological empowerment to enhance innovative behavior within organizations.
Originality/value: The novelty of this research lies in the inclusion of psychological empowerment as an intervening variable in the relationship between performance measurement systems and innovative behavior. The findings provide practical insights for practitioners in designing effective innovation strategies and offer directions for future research in this field.