bluuebunny/crossref_metadata_2025 huggingface dataset:
Hydraulically Controlled Bottom Flow in the Orkney Passage
Authors: Morozov Eugene G. , Frey Dmitry I. , Zuev Oleg A. , Velarde Manuel G. , Krechik Viktor A. , Mukhametianov Rinat Z.
Published: October 2022

Supercritical hydraulically controlled overflow of Antarctic Bottom Water from the Weddell Sea has been observed in the Orkney Passage during field measurements in February 2022. The Orkney Passage is the main pathway for the densest layer of Antarctic Bottom Water flow from the Weddell Sea to the Scotia Sea. The bottom current overflows the sill across the passage and flows down from the crest of the sill at 3600 m deeper than 4000 m. The descending flow accelerates because of the difference in the height of the sill and its foot. An estimate of the Froude number of this flow was greater than unity. Near the foot of the slope the kinetic energy of the flow becomes insufficient to continue moving in this regime. The flow slows down, and strong mixing and warming of the bottom water occurs due to the exchange with the surrounding waters. This hydrodynamic phenomenon is called supercritical hydraulically controlled flow. However, the flow of bottom water continues further and eventually fills the abyssal depths of the Atlantic.
The Impact of COVID-19 on Urban Water Consumption in the United States
Authors: Nemati Mehdi , Tran Dat
Published: October 2022

The COVID-19 pandemic has changed how we define “home”, which is recast as the new coffee shop, restaurant, entertainment center, and office during the pandemic. The shift toward working from home led to substantial changes in how consumers behave, affecting the consumption of resources in some cases for years to come. Using data from six water utilities in various states in the U.S., we investigated how water consumption has changed attributable to the implementation of stay-at-home (SAH) orders. The results indicated an overall increase of between 3.08% and 13.65% in daily water consumption during the SAH orders compared to the same period in 2018 and 2019, with the gaps closing as lockdown restrictions eased. The findings also revealed that the changes in water consumption across sectors and user groups were heterogeneous. Specifically, the results showed that total daily residential water demand during SAH orders in 2020 increased significantly, between 11.80% and 13.65%, relative to the same period in 2018 and 2019, but the changes in water consumption for non-residential properties headed in opposite directions with reductions between −22.53% and −45.08%. In addition, we found that the low-income groups did not change their water consumption even with the lockdown.
Industrial Wastewater Discharge and Compliance Investigation for Environmentally Resilient Rwanda
Authors: Dufatanye Israel , Lee Youngjae , Kim Hyungsoo , Lee Sangyoup
Published: October 2022

While Rwanda is aiming at environmental pollution resilience and green growth, some industries are still discharging untreated effluent into the environment. This study gives a general overview of the compliance level of industrial effluent discharge in Rwanda and the linked negative environmental impacts. It comprises qualitative and quantitative analyses of data obtained from wastewater samples collected from five selected industries in Rwanda. The selected industries had previously been audited and monitored by the Rwanda Environment Management Authority (REMA), due to complains from neighboring residents. The study found that the effluent discharge from wastewater treatment plants (WWTP) for all concerned industries failed to comply with (i) oil and grease (O&G) national and international tolerable parameter limits or the (ii) fecal coliforms national standard. In addition, a compliance level of 66.7% was observed for key water quality monitoring parameters (pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), and heavy metals (i.e., lead (Pb), cadmium (Cd), and chromium (Cr)). Following these study findings, one industry was closed by the REMA for deliberately discharging untreated effluent into an adjacent river. This study recommends the adoption of the best available technology for effluent treatment, installation or renovation of existing WWTPs, and the relocation to industrial zones of industries adjacent to fragile environments.
Assessment of Water Stress Conditions in Central Italy by the Use of Ground and Remotely Sensed Weather Datasets
Authors: Pieri Maurizio , Chiesi Marta , Fibbi Luca , Battista Piero , Antonini Andrea , Rapi Bernardo , Sabatini Francesco , Gozzini Bernardo , Maselli Fabio
Published: October 2022

Aridity and drought, which are determined by climatic and temporary water scarcity, respectively, are important limiting factors for plant gross primary production. These phenomena are commonly assessed and/or monitored by means of weather indices, most of which are based on observations of precipitation and potential evapotranspiration. The estimation of such indices over large areas can be carried out using multiple datasets, i.e., those derived from weather stations, satellite images, and ground radars. The possibility of using interpolated or remotely sensed datasets in place of ground measurements was currently investigated for Tuscany, a region in Central Italy, showing complex and heterogeneous environmental features. The former weather datasets were first evaluated versus corresponding ground measurements. Next, the basic weather variables were combined and cumulated over 30–60 days to yield synthetic indicators of water deficit, which were assessed in the same way. Finally, these indicators were evaluated to predict the soil water conditions of a meadow and an olive grove during the 2021 summer period. The results obtained indicate that the use of the multi-source weather datasets induces only a minor deterioration of the water stress indicators and is therefore efficient to monitor the water status of different ecosystems with high spatial (200 m) and temporal (daily) details.
Effects of Artificial Water Withdrawal on the Terrestrial Water Cycle in the Yangtze River Basin
Authors: Wang Hejia , Hou Baodeng , Yang Mingxiang , Xiao Weihua , Wang Hao
Published: October 2022

Clarifying the response of the terrestrial water cycle to the influence of climate change and human activities and accurately grasping the variations in the water cycle and water resources under the changing environment are the scientific basis for achieving the sustainable development of the Yangtze River Economic Belt. In this paper, a dataset of rasterized water consumption in the Yangtze River Basin was constructed, and an artificial water withdrawal module considering the process of water intake, water consumption and drainage was designed, which was coupled with the land surface model CLM4.5. Based on the multi-scale validation in the Yangtze River Basin, two numerical simulation experiments were carried out to reveal the impact of artificial water withdrawal on the water cycle process in the Yangtze River Basin. The results indicate that artificial water withdrawal leads to an 0.1–0.3 m increase in groundwater table depth in most areas of the basin, and agricultural irrigation leads to a 0–0.03 mm3/mm3 increase in soil moisture in most areas. Climate change dominates the variation of discharge in the Yangtze River basin and leads to an increase in discharge at most stations.
Yellow River Basin Management under Pressure. The Present State, Restoration and Protection: Lessons from a Special Issue
Authors: Zuo Qiting , Ding Xiangyi , Cui Guotao , Zhang Wei
Published: October 2022

Ecological protection and high-quality development in the basin of the Yellow River, known as China’s “Mother River” and “the cradle of Chinese civilization”, have been receiving increasing attention because of the important role they play in China’s economic and social development, and its cultural heritage [...]
Perceptions Environmental and Health Impacts of Cruise Activity in the Roatan Ports
Authors: Salgado-Gómez Cintia , Vega-Muñoz Alejandro , Salazar-Sepúlveda Guido , Contreras-Barraza Nicolás , Araya-Silva Lorena
Published: October 2022

The purpose of this study was to investigate the perception of different stakeholders on the environmental impacts of cruise ship activity in the port of Roatan, Honduras, as an activity that has an impact on the region’s blue economy. A descriptive qualitative research design was applied, with 30 people directly related to the cruise ship activity participating in the study. Data collection was carried out through structured interviews with pre-codes based on Green Marine Management performance indicators. Conventional content analysis was used to analyze the verbal data. From the analysis of the data, conclusions were drawn that there is a generalized perception of the fundamental role in the control and assurance of the environmental impact of the maritime authorities; however, there is evidence of a lack of specialization in the areas of traceability, which could have an impact on the ecosystem and the health of the population, showing a lack of leadership in the articulation of stakeholders.
Experimental Study on the Impact of Pulsed Flow Velocity on the Scouring of Benthic Algae from a Mountainous River
Authors: Cao Ping , Xu Fengran , Gao Shilin , Baoligao Baiyin , Li Xiangdong , Mu Xiangpeng , Mendes Ana , Shang Xu
Published: October 2022

The decrease in periodic scouring of pulsed flows in regulated rivers can result in algal communities dominated by filamentous algae, not available as food sources for fish and macroinvertebrates. To study the pulsed flow velocity required to scour benthic algae from natural river beds, the removal effects on the algal biomass and resistances of different species were tested in a laboratory flume at different velocities of 0.8, 1.1, 1.4, 1.7, and 2.0 m/s. The removal of total algal biomass showed a significant positive relationship with increasing velocities, which reached 22% at 2.0 m/s. The biomass removal of green algae and diatoms was higher than that of blue–green algae. The flow velocity at 1.4 m/s had a clear removal effect on filamentous algae. The velocity higher than 1.7 m/s caused a significant increase in the removal percentage of total biomass dominated by diatoms and blue–green algae. To reduce the filamentous algae and retain the diatoms and blue–green algae, a range of near bed flow velocity was suggested to be 1.4–1.7 m/s. This range could serve as a reference for required pulsed flow velocity to reduce the growth of excessive or nuisance periphyton.
Computation of Time of Concentration Based on Two-Dimensional Hydraulic Simulation
Authors: Zolghadr Masih , Rafiee Mohamad R. , Esmaeilmanesh Fatemeh , Fathi Abazar , Tripathi Ravi Prakash , Rathnayake Upaka , Gunakala Sreedhar Rao , Azamathulla Hazi Mohammad
Published: October 2022

Time of concentration (TC) is a parameter in runoff estimation, used to study and design different types of projects in watersheds. Any error in TC calculation leads to an inaccurate estimation of the design flow, which can lead to over-sizing or under-sizing of designed facilities that can have great economic and environmental consequences. Therefore, choosing the correct method to estimate TC is of great importance. Due to the diversity of estimation methods in the literature, the obtained TC values are different. This study aims to present a new method to calculate TC, based on its main concept, i.e., the time required for a water parcel to reach its outlet from the farthest hydrological point of a watershed. A two-dimensional hydraulic simulation was used to model the water parcel travel. A watershed was selected as a case study, and its time of concentration was determined by salt solution tracing. The field measurement results were used for calibration of the numerical simulation model. Meanwhile, 31 empirical relations in the literature were reviewed to determine the most accurate ones. Estimated TC values were compared with the measured ones, and the relative error percentage was used to evaluate the accuracy of the result. In the empirical TC methods, the maximum error was above 300%, and the minimum error was 6.7% for the field studied area. The relative errors of hydraulic simulation outputs were between 3 and 27%. The results showed that only three empirical methods, namely Simas and Hawkins, SCSlag, and Yen and Chow, had the least errors respectively equal to 6.7%, 8.660%, and 13.5%, which can be recommended for the studied area and those with similar hydrological characteristics. On the other hand, hydraulic simulation is also introduced as an efficient method to determine TC which can be used in any desired watershed.
Optimization of Cultivation Conditions for Tetraselmis striata and Biomass Quality Evaluation for Fish Feed Production
Authors: Patrinou Vasiliki , Daskalaki Alexandra , Kampantais Dimitris , Kanakis Dimitris C. , Economou Christina N. , Bokas Dimitris , Kotzamanis Yannis , Aggelis George , Vayenas Dimitris V. , Tekerlekopoulou Athanasia G.
Published: October 2022

The marine microalgae Tetraselmis striata was cultivated in drilling waters with different salinities. Growth substrate optimization was performed while the effects of different pH, temperature, photoperiod and CO2 flow rate on biomass productivity and its composition were studied. Results showed that the strain grew better in 2.8% drilling waters employing the fertilizer Nutri-Leaf together with ΝaHCO3. A pH value of 8 resulted in high biomass productivity (79.8 mg L−1 d−1) and biomass composition (proteins 51.2% d.w., carbohydrates 14.6% d.w., lipids 27.8% d.w. and total chlorophylls 5.1% d.w.). The optimum cultivation temperature was found to be 25 ± 1 °C which further enhanced biomass productivity (93.7 mg L−1 d−1) and composition (proteins 38.7% d.w., carbohydrates 20.4% d.w., lipids 30.2% d.w., total chlorophylls 5.1% d.w.). Photoperiod experiments showed that continuous illumination was essential for biomass production. A 10 mL min−1 flow rate of CO2 lead to biomass productivity of 87.5 mg L−1 d−1 and high intracellular content (proteins 44.6% d.w., carbohydrates 10.3% d.w., lipids 27.3% d.w., total chlorophylls 5.2% d.w.). Applying the optimum growth conditions, the produced biomass presented high protein content with adequate amino acids and high percentages of eicosapentaenoic acid (EPA), indicating its suitability for incorporation into conventional fish feeds. In addition, this study analyzed how functional parameters may influence the uptake of nutrients by Tetraselmis.
Simulation of the Water Storage Capacity of Siling Co Lake on the Tibetan Plateau and Its Hydrological Response to Climate Change
Authors: Tang Yuanzhi , Huo Junjun , Zhu Dejun , Yuan Zhe
Published: October 2022

Due to their special geographical locations and environments, plateau lakes play a key role in maintaining regional water balance, but lake water storage changes are upsetting this balance. Based on data from lakes on the Tibetan Plateau (TP), this study used the Spatial Processes in Hydrology (SPHY) model to simulate the runoff process in the Siling Co basin from 2000 to 2016 and estimated the changes in water storage of Siling Co and the contribution of each component of runoff into the lake. The results showed that the water storage capacity of Siling Co has increased by 1.2 billion m3/yr, and the lake area continues to expand; declines in precipitation have significantly reduced baseflow (BF), rainfall runoff (RR), and snow runoff (SR), while temperature increases have raised glacier runoff (GR). The simulated average runoff showed that BF, GF, RR, and SR contribute 24%, 22%, 16%, and 38%, respectively, of the flow into Siling Co. Based on hypothetical climate change scenarios and two Shared Socioeconomic Pathways (SSP1-2.6 and SSP3-7.0) from the MRI-ESM2-0 GCMs, this study estimated that a 10% increase in precipitation could lead to a 28% increase in total runoff, while a 1 °C increase in temperature could lead to a 10% decrease in runoff. The average runoff depth of the basin is expected to increase by 30–39 mm, since the temperature and precipitation may increase significantly from 2020 to 2050. The intensification of glacial melting caused by the increase in temperature continues, posing a greater challenge to many water resources management problems caused by the expansion of lakes.
Study on the Motion Characteristics of Particles Transported by a Horizontal Pipeline in Heterogeneous Flow
Authors: Wang Jiayi , Li Yitian , Lai Zhiqiang , Zhao Lianjun , Wang Zhongmei
Published: October 2022

The worldwide problem of reservoir sedimentation has perplexed the water conservancy industry. The problem of reservoir sedimentation is particularly serious in sandy rivers in China and directly affects the normal function of reservoirs. Due to its effect on the economy and environmental protection, the self-priming pipeline dredging and sediment discharge technology has broad application prospects. Nevertheless, there are pressing problems in the transportation of slurry particles in the pipeline system of this new technology. The purpose of this study is to use physical model tests to analyze the influence of the sediment transport rate and pipeline velocity on the motion state of particles (aggregation transport, jump transport, and suspension transport) when a heterogeneous flow with different particle sizes is transported in the pipeline. The results indicate that under the same pipeline velocity and sediment transport rate, the thickness of the static particle accumulation layer decreases with the increase in particle size in the state of aggregation and transportation, and the smaller the particle size, the greater the particle movement speed in the case of aggregation and suspension transportation. During jump transportation, the velocity of particles above the critical inflection point Y’ increases with the decrease in particle size. The opposite is found below the critical inflection point Y’. At the same particle size and sediment transport rate, when the pipeline velocity increases, the particle transport transits from aggregation transport to jump transport and then to suspension transport. The larger the pipeline velocity, the greater the overall movement speed of particles. When gathering and conveying, if the pipeline flow rate increases by 1.5, the maximum movement speed of particles increases by 3.3. The curvature of the vertical velocity curve of the particles during jump transportation is not affected by the pipeline velocity. The particle velocity at the highest point increases with the increase in the pipeline velocity. During suspension transportation, the difference between the maximum and minimum vertical particle distribution velocities is exponentially related to the pipeline velocity. At the same pipe velocity and particle size, the overall particle velocity decreases with the increase in sediment transport rate.
Improvement of the “Triangle Method” for Soil Moisture Retrieval Using ECOSTRESS and Sentinel-2: Results over a Heterogeneous Agricultural Field in Northern India
Authors: Singh Rishabh , Srivastava Prashant K. , Petropoulos George P. , Shukla Sudhakar , Prasad Rajendra
Published: October 2022

For the purpose of deriving spatiotemporal estimates of soil moisture, the triangle method is one of the most widely used approaches today utilizing remote sensing data. Generally, those techniques are based on the physical relationships that exist when a satellite-derived land surface temperature (Ts) is plotted against a spectral vegetation index (VI). The present study proposes an improvement in the triangle method in retrieving soil moisture over heterogeneous areas. In particular, it proposes a new approach in robustly identifying the extreme points required for the technique’s implementation. Those extreme points are then used in calculating fractional vegetation cover (Fr) and scaled Ts. Furthermore, the study proposes a new approach for calculating the coefficients required to develop the relationships between surface soil moisture (SSM) and Fr/Ts, which is implemented using a model and field data. As a case study, an agricultural field in the Varanasi district in India has been used, on which the triangle method is implemented using ECOSTRESS and Sentinel-2 data. The much-improved spatial resolution satellite data of ~70 m from ECOSTRESS allowed deriving more vivid results of SSM spatial variability for the study area. Comparisons between field soil moisture calculated using the proposed method returned an RMSE of 0.03 and R2 value of 0.84, which are considered very satisfactory. The methodology proposed herein and the results obtained are of significant value with regards to the triangle method, contributing to ongoing efforts at present examining its use for operational product development at a global scale.
Effect of Seawater and Surface-Sediment Variables on Epipelic Diatom Diversity and Abundance in the Coastal Area of Negeri Sembilan, Malaysia
Authors: Sas Ahmed Awadh , Suriyanti Su Nyun Pau , Das Simon Kumar , Cob Zaidi Che
Published: October 2022

Benthic diatoms are important components of marine shallow-water habitats that may affect primary production, stabilize sediment, and produce extracellular polymeric substances. Benthic diatoms are useful for estimating the trophic status of marine ecosystems. In this study, we investigated the diversity and abundance of benthic diatoms to integrate these data with the physicochemical characteristics of shallow coastal areas in Negeri Sembilan. A total of 39 species of epipelic diatoms were extracted by removing organic matter from sediments that were dominated by pennate diatoms. Results showed that Diploneis crabro, Eunotogramma laevis, Actinoptychus sp., and Cocconeisplacentula were the important species in the area. The abundance varied between 1.85 × 103 and 3.43 × 103 cells/g, and the diversity index fluctuated between 2.13 and 2.58. The abundance had significant positive correlations with seawater surface temperature (SST) but had negative correlations with pH and NH3. The diversity on the other end was positively correlated with SST but negatively correlated with total suspended solids and SiO2. Principal component analysis (PCA) demonstrated that the abundance of D. crabro, E. laevis, and Actinoptychus sp. can be attributed to high levels of NO2−, NH3, and total dissolved solids. PCA also showed positive correlations of C. placentula with NO3−and SiO2 but negative ones with PO43− and pH. The epipelic diatom community showed high diversity with high variations throughout the study area.
Vegetated Roofs as a Means of Sustainable Urban Development: A Scoping Review
Authors: Rahman Mohammad A. , Alim Mohammad A. , Jahan Sayka , Rahman Ataur
Published: October 2022

Urbanisation affects the water cycle and heat balance in a negative way. Vegetated roofs have the potential to minimise the effects of urbanisation. A scoping review is presented here to examine how vegetated roofs are being evolved as an effective tool of sustainable urban stormwater management and overall urban development. It has been found that research on vegetated roofs has been increasing significantly and it can contribute towards achieving multiple sustainable development goals (SDGs). It has also been found that the uptake of vegetated roofs has been slow. A lack of regulatory acceptance caused by an absence of experimental data and a subsequent knowledge gap establishing the effectiveness of vegetated roofs are major reasons behind this slow uptake. Future research on vegetated roofs and their subsequent evolutions should put a focus on gathering experimental data towards establishing a performance benchmark for detention, retention and water quality in urban settings. Such data can be utilised towards developing a stand-alone guideline and software for green roof design.
Online Storage Technology of the Separate Sewage System: Demonstration Study in a Typical Plain River Network City
Authors: Dai Xiaohu , Xu Guozhong , Ding Yongwei , Zeng Siyu , You Lan , Jiang Jianjun , Zhang Hao
Published: October 2022

Due to the high underground water level, frequent rainfall, and large amounts of infiltration and inflow (I/I) into the sewage system, a city in the plain river network region had to face a series of problems caused by the high water-level operation of the drainage system. Suzhou, a city in the Yangtze River Delta region of China, can be a representative of cities in plain river networks, where this research was carried out. The amount of I/I into the sewage system was evaluated, and the storm water management model (SWMM) was used to further calculate the sewer water storage capacity under dry and wet weather with multi-year average rainfall. Based on the offline model calculation and artificial experiences, the rule-based online regulation and storage real-time control strategy (RTC) is verified, and the online regulation and storage intelligent scheduling demonstration is carried out in the central-city district of Suzhou. The results showed that the infiltration in dry weather accounted for about 20–25% of the total collected wastewater; in wet weather (36 mm precipitation), the extraneous water induced by I/I peaked at 73.64%. The collaborative control of regional multi-stage pumping stations through RTC of the sewage system can effectively avoid the high water-level operation caused by peak sewage flows on dry days. In combination with rainfall forecasting, the coordinated control of plants and pumping stations to pre-empty the sewer pipelines prior to rainfall can, to some extent (up to 35 mm of rainfall in this study), cope with the increase in I/I induced by rainfall.
Age Structure and Spatial Distribution of Euphausia superba Larvae off the Antarctic Peninsula, Southern Ocean
Authors: Kasyan Valentina V.
Published: October 2022

The Antarctic krill, Euphausia superba Dana, 1850, is a species forming high biomass and, therefore, playing a major role in the Antarctic marine food web. The age structure and patterns of spatial distribution of E. superba larvae in the waters of the Bransfield Strait (Antarctic Sound, Powell Basin), and off the South Orkney Islands, were studied based on data collected through a research survey in January and February 2022. Eggs and larvae (naupliar, calyptopis, and furcilia stages) of E. superba were found in these regions. Eggs and nauplii were concentrated in the southern, deep-sea part of the Antarctic Sound and over the northeastern and southwestern slopes of the Powell Basin, while calyptopis and furcilia larvae were concentrated north of the South Orkney Islands. The larvae abundance increased in an easterly direction. Four groups of communities comprising krill larvae at different development stages were identified. These groups were located in two subregions with the border between them running off the South Orkney Islands. The distribution and abundance of E. superba larvae showed a clear relationship with environmental conditions, in particular with a combination of such factors as sea surface temperature and chlorophyll a concentration.
Sense of School Belonging: The Illusion of a School-Size Effect
Authors: Petrucci Franck , Marcionetti Jenny , Castelli Luciana
Published: October 2022

Over the past thirty years, the sense of school belonging received increasing attention in the educational field because of the many developmental and educational advantages associated with it. Previous research suggested that small schools are in a better position to create a strong sense of belonging among students. The aim of our study was to test the effect of school size on students’ sense of school belonging and to test whether this effect holds after considering the effect of the classroom after controlling for individual differences. The study was conducted on a sample of 1698 sixth- and seventh-grade students distributed among 20 school institutes in Switzerland. Multilevel analyses have been conducted. While first results showed an effect of the school size on the sense of school belonging, a comparison of the two-level and three-level hierarchical linear models showed that this effect is no longer significant when considering the intermediate level of the classroom in the analysis, indicating that previous research may have overestimated the effect of school size on the sense of school belonging. These evidence raises the question of which levels of the school environment are more relevant to better understanding individual differences in the sense of school belonging.
Influencia de la Dominancia Cerebral del Neuromarketing sobre el Valor de Marca desde la perspectiva del Consumidor, un estudio general de la Generación Z en la ciudad de Sucre, Bolivia
Authors: Poveda-Velasco Juan Carlos
Published: October 2022

El objetivo del estudio fue validar un modelo para medir la dominancia cerebral del neuromarketing considerando los modelos multidimensionales de valor de marca desde la perspectiva del consumidor, tomando como objeto de estudio un segmento que pertenece a la cohorte poblacional denominada Generación Z. La investigación fue de tipo exploratoria, aplicada, cuantitativa, tipo correlacional – descriptiva, con diseño no experimental. La muestra estudiada estuvo conformada por 342 personas entre 17 y 25 años que además son estudiantes universitarios. Las variables del modelo que sustenta el instrumento para medir la dominancia cerebral del neuromarketing sobre el valor de marca obtuvieron un Alfa de Cronbach, valor de marca VM (0,807), cerebro neo córtex CNC (0,883), cerebro límbico CL (0,923) y cerebro primitivo CP (0,931); por otro lado, complementando la validez y fiabilidad del constructo, para todas las variables del modelo los valores de rho_A fueron mayores a 0,7, la fiabilidad compuesta mayor a 0,7 y la Varianza extraída media (AVE) mayor a 0,5. A través de la interpretación de los coeficientes Path se verifica que las hipótesis propuestas fueron aceptadas, que sobre el Valor de Marca desde la perspectiva del consumidor tiene mayor dominancia el cerebro límbico (0,370), seguido del cerebro neo córtex (0,264) y finalmente el cerebro primitivo (0,207). Concluyendo con la validación del instrumento propuesto.
La actual crisis intensifica los contrastes económicos en las grandes urbes del mundo. impulsados por la pandemia, y otros aspectos negativos
Authors: Longar-Blanco María del Pilar
Published: October 2022

El objetivo general de esta investigación consistió en determinar los probables mecanismos para contrarrestar los efectos empobrecedores y cuya confluencia está impulsando la crisis actual, a través de los avances científicos y tecnológicos para transitar hacia una economía más equitativa, con menor desigualdad de ingresos entre los grupos sociales y menor movilidad social  para  transitar hacia una economía más equitativa, con menor desigualdad de ingresos entre los grupos sociales y menor movilidad social. Se utilizo la metodología de Kitchenham (2004) para la realización de Revisión Sistemática de Literatura (RSL). El marco PICOC se utilizó para identificar los elementos centrales de la pregunta de investigación (Booth, Sutton, & Papaioannou, 2016)

Algunos organismos internacionales reportan que la crisis causada por la pandemia COVID 19, se mantendrá hasta 2030. Pues 2020 se recargó en los más pobres y vulnerables. El Banco Mundial denomina “pobres crónicos” -población rural dedicada a la agricultura y ganadería- con la pandemia se evidenciaron nuevos pobres en las ciudades, entre personas con mayores grados educativos, dedicadas a los servicios, la construcción y la manufactura, y sobre todo en la población más joven.

El Banco Mundial BM, proyecta que a largo plazo es probable que la crisis aumente la desigualdad dentro de los países, la economía tuvo su mayor caída en 90 años y millones de personas perdieron sus empleos. Y remarca que la pandemia, los conflictos armados y el cambio climático son los 3 factores cuya confluencia está impulsando la crisis actual y se extenderá su impacto hacia el futuro.

También el BM reporta que aun siendo optimistas los efectos empobrecedores de la pandemia serán colosales. Y que los multimillonarios de la tecnología abultaron su riqueza en medio de la crisis.
La pandemia y el aislamiento: un análisis de sus primeras consecuencias sobre la población vulnerable. Un caso de estudio
Authors: Reyes-Pontet Mauro D. , Ibáñez-Martín María M. , London Silvia
Published: October 2022

La pandemia ha desatado una crisis a nivel mundial. En el presente trabajo se realiza un análisis sobre las primeras consecuencias de la pandemia y el aislamiento en la población vulnerable, bajo la hipótesis de que podrían conformar un nuevo grupo de excluidos al llegar la “nueva normalidad”. Se emplea una estrategia metodológica de combinación de análisis cuantitativo y cualitativo sobre tres barrios vulnerables de Bahía Blanca. Se concluye que esta población es severamente afecta por la situación pandémica y la crisis, favoreciendo el desenlace en nuevas trayectorias de exclusión.
Reluctance of general practice staff to register patients without documentation: a qualitative study in North East London
Authors: Worthing Kitty , Seta Pooja , Ouwehand Isa , Berlin Anita , Clinch Megan
Published: October 2022

Background

Lack of access to documentation is a key barrier to GP registration, despite NHS England guidance stating that documents are not required. Staff attitudes and practice regarding registration of those without documentation are under- researched.

Aim

To understand the processes through which registration might be refused for those without documents, and the factors operating to influence this.

Design and setting

Qualitative study conducted in general practice across three clinical commissioning groups in North East London.

Method

In total, 33 participants (GP staff involved in registering new patients) were recruited through email invitation. Semi-structured interviews and focus groups were conducted. Data were analysed using Braun and Clarke’s reflexive thematic analysis. Two social theories informed this analysis: Lipsky’s street-level bureaucracy and Bourdieu’s theory of practice.

Results

Despite good knowledge of guidance, most participants expressed reluctance to register those without documentation, often introducing additional hurdles or requirements in their everyday practice. Two explanatory themes were generated: that those without documents were perceived as burdensome, and/or that moral judgements were made about their deservedness to finite resources. Participants described a context of high workload and insufficient funding. Some felt that GP services should be restricted by immigration status, as is widespread in secondary care.

Conclusion

Improving inclusive registration practice requires addressing staff concerns, supporting navigation of high workloads, tackling financial disincentives to registering transient groups, and challenging narratives that undocumented migrants represent a ‘threat’ to NHS resources. Furthermore, it is imperative to acknowledge and address upstream drivers, in this instance the Hostile Environment.
Factors Affecting the Distribution of Anguilla bicolor bicolor McClelland and Anguilla nebulosa nebulosa McClelland (Anguilliformes; Anguillidae) in a River System of Southern Sri Lanka
Authors: CUMARANATUNGA P.R.T.
Published: October 2022

Between 1990 and 1993, Anguilla bicolor bicolor McClelland and Anguilla nebulosa nebulosa McClelland were captured using fyke nets, and physicochemical parameters were noted from the Malala Lagoon and five upstream reservoirs (Kuda Badagiriya, Badagiriya, Ranmudu Wewa, Pahalaandara Wewa and Mahagala Wewa) of the Malala River System, Sri Lanka. Catch per unit effort (CPUE) was higher for A. bicolor than for A. nebulosa in all water bodies except in Kuda Badagiriya, from which lowest mean Secchi depth (22.7 ±8.1 cm) and water depth (1.10±0.27 m) and a higher CPUE for A. nebulosa than for A. bicolor were recorded. From Malala Lagoon, highest mean conductivity (4,082±2,331 µS cm·1 ), Secchi depth (93.0±32.4 cm) and CPUE for A bicolor, smallest A bicolor with the lowest condition factor (K), and silver A. nebulosa with the highest K, were recorded. Yellow eels were captured from all reservoirs but only yellow A bicolor were captured from Malala Lagoon. Mahagala Wewa, the most upstream reservoir with low conductivity, recorded highest mean length and weight for yellow eels of both species, and the highest condition factor for A. bicolor. Conductivity and turbidity of water could be suggested as the major factors which affect the distribution and condition of A bicolor and A. nebulosa in river systems of Southern Sri Lanka.
The Food and Feeding Habits of a Freshwater Prawn Macrobrachium choprai
Authors: ROY D. , SINGH S.R.
Published: October 2022

The food contents of adults and juveniles of Macrobrachium choprai were examined in relation to sex, size, maturity and season. Organic detritus supplemented by planktonic algae, crustacean larvae, molluscs and insects formed the major part of the food of adult individuals. Fish bones were occasionally observed in the gut of males only. This species, however, did not exhibit any preference for a particular animal or plant food item. Variation in food components in relation to size, sex or season was also insignificant. Juveniles exhibited absence of organic detritus and depended only on planktonic algae, crustacean and insect larvae.
Profitability of New Fish-Catching Technology in the South of Sri Lanka
Authors: AMARASINGHE O.
Published: October 2022

This study attempts to find out the profitability of new fish catching technology as against traditional, in terms of gross profits, net profits, resource rents, return to labor and capital. Data on costs and returns associated with fishing craft operations were col­lected daily from 24 randomly selected craft owners in Dondra, Sri Lanka, over a period of one year. The sample fishermen belonged to five strata in respect of degree of mechanisation and sophistication of craft. Results indicated positive net profits for all craft operations indicating their long-term viability. All fishing units enjoyed positive resource rents. The multiday mechanized craft, which is engaged in exploiting the under-exploited deep sea resources of Sri Lanka, enjoyed the highest resource rents. This craft also en­joyed the highest return to labor, while the mechanized traditional craft enjoyed the high­est return to capital. It appeared that labor was overpaid and capital was underpaid in mechanized fishing due to the persistence of traditional catch-sharing systems. Yet, the mechanized traditional craft and the small mechanized craft with outboard motor appear to be best suited to the needs of Sri Lanka. Results also indicated that owners of mechanized crafts enjoyed a higher apparent wealth position than owners of traditional crafts and that mechanization of fishing crafts has definitely improved the living standards of fishermen.
Improved Techniques of Chromosome Preparation from Shrimp and Prawns
Authors: LAKRA W.S.
Published: October 2022

This paper reports simple techniques for obtaining high quality somatic and meiotic chromosome spreads from larval and adult stages of shrimp and prawns. These techniques were successfully applied to study the cytogenetic profile of Penaeus monodon (2n = 88), Metapenaeus affinis (2n = 88) and Macrobrachium rosenbergii (2n = 118). The cephalotho­rax of postlarvae, and hepatopancreas, regenerated blastema and testicular tissues of adult specimens provided the best chromosomal plates. The improved techniques will be helpful in cytogenetic characterization and improvement of commercially important shrimp and prawn species.
Estanislao Zeballos: el hombre de acción política que no se haría jamás un profesional
Authors: Bonaudo Marta
Published: October 2022

El siguiente trabajo explora la experiencia multifacéticade la figura de Estanislao Zeballos a lo largo de los primeroscuarenta años de su vida (1854-1894). Indagando cuál fue ellugar que ocupó la acción política y qué papel jugó en lastramas de representación de esa sociedad. Con el propósitode acercarnos a ese complejo proceso de prefiguración de uncandidato, a fin de ir desentrañando cómo, al interior de laselites, se fueron desplegando particulares cursus honorum queconvirtieron a determinados actores en figuras paradigmáticas delas redes notabiliares y referentes naturales para acceder a cargosparlamentarios o ejecutivos.
Marta Bonaudo. Ensayo bibliográfico (1967-2020)
Authors: Garcilazo Romina
Published: October 2022

En el presente ensayo bibliográfico se detalla, a partirde distintos períodos de tiempo, la extensa y amplia producciónescrita de la historiadora argentina Marta Bonaudo entre losaños 1967 y 2020. En este sentido, se recuperan los trabajos desu autoría inéditos y publicados en libros, fascículos y revistascientíficas tanto en el ámbito nacional como internacional.
Una mirada conceptual e histórica de la concreción de la licencia por violencia de género para las trabajadoras de la educación en la provincia de Santa Fe (2014)
Authors: Sguigna Lorena
Published: October 2022

El presente artículo analiza la incorporación de la licencia por violencia de género en las reglamentaciones de licencias docentes de la Provincia de Santa Fe (2014). Se plantea, en principio, la importancia de la Ley N° 26.485 de protección integral para prevenir, sancionar y erradicar la violencia contra las mujeres, como un avance legislativo para visibilizar e instalar esta problemática en el espacio público, más aún en un sector de trabajo altamente feminizado como es la docencia. El reconocimiento por parte del Estado de una licencia específica para los casos de violencia de género es un ejemplo de la necesidad de modificarnormativas vigentes para atender las situaciones que atraviesan muchas docentes en la provincia y en nuestro país.
Modulaciones urbanas del posfordismo. La revalorización patrimonial en Puerto Norte (Rosario – Santa Fe)
Authors: Goñi Morena
Published: October 2022

La categoría de revalorización patrimonial emergió hace unas pocas décadas como elemento constitutivo del discurso urbano y político. Hasta entonces, su presencia en la planificación había sido esquiva, cuando no, inexistente. En la actualidad funciona como referencia constitutiva de la ciudad, de su identidad, de su memoria; su alocución convierte el cuerpo del discurso en una pieza progresista y de intenciones democratizadoras. En una ciudad como la actual, signada por lafinanciarización, la flexibilización, la desigualdad, la segregación ¿Qué rol cumplen la historia y lo patrimonial? El presente artículo propone un recorrido crítico por la noción de la revalorización patrimonial en la ciudad de Rosario (Santa Fe), atendiendoparticularmente a su emergencia y a su aplicación en una espacialidad icónica: Puerto Norte. Esta espacialidad funciona como una composición estratigráfica, cada capa alberga el fósil de una etapa productiva distinta. Una lectura transversal por las distintas capas nos ayudará a develar qué sentidos se ocultan y se exhiben en relación a los espacios portuarios y su patrimonio.
Presentación: ¿Qué hay de nuevo, vieje? Historiografías en diálogo y archivos revisitados
Authors: Moriconi Miriam
Published: October 2022

Abordar la familia, la esclavitud, la niñez y la educación desde la perspectiva de género produce una renovación en ciertos segmentos de las historiografías moderna, colonial y contemporánea. Los recursos conceptuales y metodológicos ligados con esta perspectiva exaltan la potencialidad de la documentación, redescubren o recrean repositorios e interpelan a la institución “archivo”. Este artículo ofrece un breve recorrido por las formulaciones críticas a versiones androcentradas del pasado y las confrontaciones epistemológicas de las teorías feministas. Además, reflexiona sobre los puntos de enlace del resto de losartículos que componen el dossier y evalúa sus proyecciones en una disciplina largamente abonada por la historia de las mujeres y los estudios de género.
Arqueología precolombina, folclore y mestizaje en Adán Quiroga
Authors: Mailhe Alejandra
Published: October 2022

Este artículo se centra en la obra de Adán Quiroga (arqueólogo amateur y estudioso del legado precolombino del NOA), atendiendo al modo en que allí se formulan algunos tópicos centrales de la legitimación arqueológica y folclorista del continente, que luego serán claves en varios autores vinculados al indigenismo espiritualista de la década del veinte. Considerando La cruz en América (1901) y especialmente Folklore calchaquí (1929), atiende al modo en que Quiroga carga de sentidos prehispánicos y mestizos el área calchaquí, reforzando el lazo profundo de la misma con el mundo andino. Sobre todo en Folklore calchaquí, el NOA se presenta como un espacio riquísimo en términos de multitemporalidad y de productividad cultural, atravesado por un fuerte sentimiento místico que emana del panteísmo y de las cosmogonías más remotas, aún vivas –en parte al menos– en el folclore del presente. En ese sentido, las exploraciones hermenéuticas de la arqueología y del folclore, que emprende Quiroga en ambos ensayos, pueden pensarse como respuestas indirectas a la secularización moderna. Palabras clave: historia de las ideas; Adán Quiroga; arqueología americana; folclore; NOA. Pre-columbian archaeology, folklore and hybridization in Adán Quiroga
Indigenismo en el noroeste argentino: recuperando Don Silenio (1936), de Alberto Córdoba
Authors: Orquera Fabiola
Published: October 2022

1936 es un año singular para la historia cultural de Tucumán porque se graban las primeras piezas de Atahualpa Yupanqui y se publican las novelas Hasta aquí nomás, de Pablo Rojas Paz, y Don Silenio, de Alberto Córdoba. Estas obras continúan el realismo social con rasgos indigenistas de la novela En el surco (1928), de Mario Bravo. Pero si bien los primeros autores han logrado amplio reconocimiento, el tercero ha quedado relegado de la historia literaria regional y nacional, por lo que este artículo busca rescatar de ese olvido a Don Silenio. Para eso se analizará el eco que tuvo al ser publicada, la construcción del protagonista -un peón indígena de una estancia en Zárate, cerca de San Pedro de Colalao, en Tucumán-, la trama de relaciones sociales, el contraste entre la ficción y el momento histórico que la inspira y la tensión entre la identidad provinciana y el cosmopolitismo porteño.
“Propuestas para la participación organizada de la comunidad”: política cultural, integración provincial y articulación de las capacidades estatales en La Pampa
Authors: Laguarda Paula I.
Published: October 2022

Este artículo analiza la implementación del proyecto “Propuestas para la participación organizada de la comunidad”, en tanto organizador de las políticas públicas culturales formuladas por el Estado provincial pampeano en el periodo 1989-1995. En el marco de un proceso de reorganización y jerarquización de la administración cultural provincial, esta iniciativa buscó integrar a las diferentes localidades de La Pampa en un proyecto político compartido, bajo el significante peronista de “comunidad organizada”. Los ejes del proyecto fueron la articulación de capacidades estatales entre provincia y municipios, el desarrollo de las instituciones culturales locales, la institucionalización de la participación social a nivel comunitario y la integración territorial, a contramano de las políticas culturales nacionales del mismo periodo,de corte neoliberal, que impulsaban la reducción del Estado y la determinación de la cultura por la economía.