bluuebunny/crossref_metadata_2025 huggingface dataset:
Tools for Edible Cities: A Review of Tools for Planning and Assessing Edible Nature-Based Solutions
Authors: Mino Eric , Pueyo-Ros Josep , Škerjanec Mateja , Castellar Joana A. C. , Viljoen André , Istenič Darja , Atanasova Nataša , Bohn Katrin , Comas Joaquim
Published: September 2021

In the last five years, European research and innovation programmes have prioritised the development of online catalogues and tools (handbooks, models, etc.) to facilitate the implementation and monitoring of Nature-Based Solutions (NBS). However, only a few catalogues and toolkits within European programmes are directly related to mainstreaming of NBS for food production (i.e., edible NBS). Therefore, the main aim of this paper is to present existing NBS tools through the eyes of productive urban landscapes. We reviewed 32 projects related to NBS and 50 tools were identified and characterised. Then, the six tools already available and provided indicators were further analysed in terms of their format and knowledge domains. Our main conclusion demonstrates that there is a lack of tools capable of supporting users for planning and implementing edible NBS; calculating the food potential of a city and/or of individual edible NBS, including the needed resources for implementation and operation (water, nutrients, energy); and assessing their urban design value, environmental and socio-economic impacts. Moreover, when they do exist, there is a resistance to share the models and equations behind the tools to allow other projects to reuse or validate them, a fact which is contrary to the open science principles upheld by many public research agencies.
Hydrological Responses of Watershed to Historical and Future Land Use Land Cover Change Dynamics of Nashe Watershed, Ethiopia
Authors: Leta Megersa Kebede , Demissie Tamene Adugna , Tränckner Jens
Published: September 2021

Land use land cover (LULC) change is the crucial driving force that affects the hydrological processes of a watershed. The changes of LULC have an important influence and are the main factor for monitoring the water balances. The assessment of LULC change is indispensable for sustainable development of land and water resources. Understanding the watershed responses to environmental changes and impacts of LULC classes on hydrological components is vigorous for planning water resources, land resource utilization, and hydrological balance sustaining. In this study, LULC effects on hydrological parameters of the Nashe watershed, Blue Nile River Basin are investigated. For this, historical and future LULC change scenarios in the Nashe watershed are implemented into a calibrated Soil and Water Assessment Tool (SWAT) model. Five LULC scenarios have been developed that represent baseline, current, and future periods corresponding to the map of 1990, 2005, 2019, 2035, and 2050. The predicted increase of agricultural and urban land by decreasing mainly forest land will lead till 2035 to an increase of 2.33% in surface runoff and a decline in ground water flow, lateral flow, and evapotranspiration. Between 2035 and 2050, a gradual increase of grass land and range land could mitigate the undesired tendency. The applied combination of LULC prognosis with process-based hydrologic modeling provide valuable data about the current and future understanding of variation in hydrological parameters and assist concerned bodies to improve land and water management in formulating approaches to minimize the conceivable increment of surface runoff.
An Analytical Solution for Investigating the Characteristics of Tidal Wave and Surge Propagation Associated with Non-Tropical and Tropical Cyclones in the Humen Estuary, Pearl River
Authors: Zhang Zhuo , Guo Fei , Hu Di , Zhang Dong
Published: September 2021

The Humen Estuary, one of the largest outlets of the Pearl River, is a long and wide tidal channel with a considerable tidal flow every year. Storm surges, always superposing spring tide, travel from the estuary and endanger the safety of people living around the river. However, little research has quantified the relationship between the hydraulic characteristics and the geometry features in this estuary. In this regard, an analytical model, combined with a numerical model, is applied to investigate the characteristics of tidal waves and surge propagations in the estuary. Given the geometric, topographic, and tidal parameters at the mouth of the estuary, the tidal damping and wave celerity can be computed. The numerical results were used to calibrate and verify the analytical model. The results indicate that the analytical model can describe the astronomical tidal dynamics very well in correspondence with the numerical results. However, the analytical model cannot predict the tide well when a tropical cyclone-induced surge is superimposed on the astronomical tide. The reason is that this model does not take the wind stress and the pressure depression into account. After reducing Manning’s coefficient, we found that the analytical results could be close to the numerical results. Finally, we analyzed the characteristics of the tidal wave in the Humen Estuary using the analytical solution and its parameters.
Modeling Biological Oxygen Demand Load Capacity in a Data-Scarce Basin with Important Anthropogenic Interventions
Authors: Zurita Alejandra , Aguayo Mauricio , Arriagada Pedro , Figueroa Ricardo , Díaz María Elisa , Stehr Alejandra
Published: September 2021

Most water bodies are currently used as receptors for pollutants coming mainly from the industrial and domestic sectors. The Biobío river is subjected to multiple anthropogenic pressures such as industrial water supply, drinking water, hydroelectric power generation, agriculture, and the final receptor body of a large amount of industrial and urban waste, pressures that will intensify due to the decrease in water flow as a result of climate change. In this context, organic contamination has been found mainly from sewage discharges and oxidizable waste discharges generated by industrial processes. In this sense, the objective of this research is to determine the Biological Oxygen Demand Loading Capacity (LC) in a basin with a low density of water quality data subjected to strong anthropogenic pressures. To estimate the carrying capacity in a section of the Biobío River, the water quality model River and Stream Water Quality Model- Qual2K version 2.11b8, developed by Chapra, was used. This model solves the Streeter–Phelps equation, proposing an analytical expression to relate the dissolved oxygen (DO) and biochemical oxygen demand (BOD5) variables. These variables were modeled for different critical scenarios of minimum flows in return periods of 5, 50, and 100 years, determining that the studied section of the Biobío river would have a high carrying capacity to not be affected by its organic matter pollution.
The Use of Zooplankton Metrics to Determine the Trophic Status and Ecological Potential: An Approach in a Large Mediterranean Watershed
Authors: Muñoz-Colmenares Manuel E. , Sendra María D. , Sòria-Perpinyà Xavier , Soria Juan Miguel , Vicente Eduardo
Published: September 2021

In the European Water Framework Directive, zooplankton was not included as a Biological Quality Element despite its important place in the aquatic trophic web. In the present study on zooplankton abundances and biomasses, we used several metrics to test their ability to detect differences among trophic statuses and ecological potential levels, and collected a large sum of data in more than 60 reservoirs at Ebro watershed, on more than 300 sampling occasions over 10 years. Our results indicate that most zooplankton metrics are correlated to environmental variables that determine reservoirs’ trophic states, especially chlorophyll a and total phosphorus. The metrics with better sensitivity to differentiate trophic states and ecological potential levels were ZOO (total zooplankton), LZOO (large zooplankton), CLAD (cladocerans), and ZOO:CHLA (zooplankton:chlorophyll a ratio). Microcrustacean metrics such as DAPHN (Daphnia), COP (copepods), CYCLO (cyclopoids), and CALA (calanoids) were good at differentiating between high and low water quality in trophic status (oligotrophic–eutrophic) and ecological potential (good or superior–moderate). Thus, zooplankton can be used as a valuable tool to determine water quality; we believe that zooplankton should be considered a Biological Quality Element within Water Framework Directive monitoring programs for inland waters.
The Cost of Brine Dilution in the Desalination Plants of Alicante
Authors: Navarro Rubén , Carratalá Adoración , Sánchez Lizaso José Luis
Published: September 2021

To reduce the environmental impact of desalination plants, a good dilution of the brine is needed. Brine dilution may be carried out using diffusers, by mixing the concentrate with other effluents, or with seawater bypassing. Seawater bypassing increases the energy consumption of the plant but, thus far, this energy consumption has not been estimated. The environmental impact statement (EIS) of desalination plants in Alicante establishes a system of seawater bypassing for diluting brine and protecting the Posidonia oceanica seagrass meadows. The aim of this paper is to quantify the energy consumption of brine dilution, which was necessary for meeting the environmental requirements from 2012 to 2018. During the research period, the plants’ operation was variable, as it depended on the supply needs. The results indicate that the energy consumption of the dilution systems fluctuated between 2,135,315 kWh in 2012 and 685,988 kWh in 2013, with an average consumption of 1,205,952 kWh for the selected period. The energy cost in 2012 was EUR 179,556, while that for 2013 was EUR 60,787, with an average annual cost of EUR 91,690. This interannual variability is due to the difference in the production values of the plants and in the dilution ratio, which oscillated between 2.5 and 7.5 seawater:brine. In addition, the dilution showed an additional cost of the energy consumed by the desalination plants of around 1.7% on average. However, it also allowed the fulfillment of the established requirements in the EIS and the protection of the Posidonia oceanica seagrass from the discharge of the desalination plants.
Targeting Irrigation Expansion to Address Sustainable Development Objectives: A Regional Farm Typology Approach
Authors: LaFevor Matthew C. , Frake April N. , Couturier Stéphane
Published: September 2021

Sustainable water management is a core sustainable development goal (SDG) that also contributes to other SDGs, including food and water security, ecosystem health, and climate adaptation. To achieve these synergies, policies must target efforts to regions that best correspond with development objectives. This study designs a targeting strategy for irrigation expansion in southern Mexico—a region long considered to have strong potential for sustainable irrigation development. We use an integrated farm typology and decision tree approach to identify priority municipalities for irrigation expansion. We use multivariate statistics to examine the relationships among farm characteristics in 933 municipalities, classifying each according to four farm types: lowland, midland, midland-irrigated, and highland. We then partition municipalities into 11 farm-type subgroups, each ranked by priority level for receiving irrigation interventions following Mexico’s National Water Program guidelines. Results identify a ‘highest-priority’ subgroup of 73 municipalities comprised mostly of midland and highland farm types. These types are characterized by low irrigation use, small farmland areas, high vulnerability to climate, high marginalization (poverty), strong representation from indigenous communities, low maize yield, and high rates of subsistence production. Findings provide a crucial first approximation of where irrigation expansion would best address water policy priorities and sustainable development objectives in southern Mexico. This study also provides a useful framework for scaling organizations tasked with targeting development efforts across large spatial scales.
Preparation of Synthetic Clays to Remove Phosphates and Ibuprofen in Water
Authors: Devesa-Rey Rosa , del Val Jesús , Feijoo Jorge , González-Coma José P. , Castiñeira Gonzalo , González-Gil Lorena
Published: September 2021

The main objective of this study consists in the synthesis of a layered double hydroxide (LDH) clay doped with magnesium and aluminum in order to test the removal of phosphates and ibuprofen in water. Two different LDH composites are assessed: oven-dried (LDHD) and calcined (LDHC). Single adsorptions of phosphate and ibuprofen showed up to 70% and 58% removal in water, when LDHC was used. A poorer performance was observed for LDHD, which presented adsorption efficiencies of 52% and 35%, respectively. The simultaneous removal of phosphate and ibuprofen in water showed that LDHC allows a greater reduction in the concentration of both compounds than LDHD. Phosphate adsorption showed a close agreement between the experimental and theoretical capacities predicted by the pseudo-second-order model, whereas ibuprofen fitted to a first-order model. In addition, phosphate adsorption showed a good fit to an intraparticle diffusion model and to Bangham model suggesting that diffusion into pores controls the adsorption process. No other mechanisms may be involved in ibuprofen adsorption, apart from intraparticle diffusion. Finally, phosphate desorption could recover up to 59% of the initial concentration, showing the feasibility of the recuperation of this compound in the LDH.
Evaluation of Calcium Alginate-Based Biopolymers as Potential Component of Membranes for Recovering Biosurfactants from Corn Steep Water
Authors: Martínez-Arcos Andrea , Reig Mònica , Cruz José Manuel , Cortina José Luis , Moldes Ana Belén , Vecino Xanel
Published: September 2021

Corn steep water (CSW) is a complex agro-food stream that is used as a source of cost-competitive biosurfactants, since they are produced spontaneously in the steeping process of corn, avoiding production costs. Nevertheless, the extraction of biosurfactants from CSW using sustainable processes is still a challenge. Consequently, the use of calcium alginate membranes could present a novel and sustainable technology for recovering biosurfactants from aqueous streams. Therefore, the aim of this work is to evaluate calcium alginate-based biopolymers, without and with the presence of grape marc as an additive, as a key component of membranes for the recovery of biosurfactants in corn steep water. Biosurfactants are present in CSW, together with other inorganic solutes and biomolecules, such as organic acids, sugars, cations, anions as well as metals. Hence, the competition of these mentioned compounds for the active sites of the calcium alginate-based biopolymers was high. However, they showed a good adsorption capacity for biosurfactants, recovering around 55 ± 2% and 47 ± 1%, of biosurfactants from CSW using both calcium alginate-based biopolymers, with and without biodegraded grape marc. Regarding adsorption capacity, it was 54.8 ± 0.6 mg biosurfactant/g bioadsorbent for the biopolymer containing grape marc, and 46.8 ± 0.4 mg biosurfactant/g bioadsorbent for the calcium alginate-based biopolymer alone. Based on these results, it could be postulated that the formulation of green membranes, based on calcium alginate-based polymers, could be an interesting alternative for the recovery of biosurfactants from aqueous streams including CSW.
The Stable Isotope Characteristics of Precipitation in the Middle East Highlighting the Link between the Köppen Climate Classifications and the δ18O and δ2H Values of Precipitation
Authors: Heydarizad Mojtaba , Gimeno Luis , Sorí Rogert , Minaei Foad , Mayvan Javad Eskandari
Published: September 2021

The Middle East is faced with a water shortage crisis due to its semiarid and arid climate. In this paper, precipitation as an important part of the water cycle was evaluated in 43 stations across the Middle East using the stable isotope technique to study the parameters which influence the stable isotope content of precipitation. First, the stepwise regression model was applied to determine the main geographical and climatological factors affecting the stable isotopes in precipitation. Secondly, the stepwise model was also used to simulate the stable isotope values in precipitation. Furthermore, due to the notable climatic variations across the Middle East, the precipitation sampling stations were classified into six groups based on the Köppen climate zones. Significant variations in the stable isotope values of precipitation were observed in the stations of each climate zone. Finally, the Middle East meteoric water line was developed for the dry and wet periods based on the average stable isotopes in the studied stations. The developed lines showed a lower slope compared to the GMWL due to the higher air temperature and relative humidity in the Middle East compared to the average global conditions. To conclude, the stable isotope contents in precipitation showed significant temporal and spatial variations due to the notable climatic variations across the Middle East.
Effects of Wildfires and Ash Leaching on Stream Chemistry in the Santa Ynez Mountains of Southern California
Authors: Swindle Carl , Shankin-Clarke Parker , Meyerhof Matthew , Carlson Jean , Melack John
Published: September 2021

Wildfires can change ecosystems by altering solutes in streams. We examined major cations in streams draining a chaparral-dominated watershed in the Santa Ynez Mountains (California, USA) following a wildfire that burned 75 km2 from July 8 to October 5, 2017. We identified changes in solute concentrations, and postulated a relation between these changes and ash leached by rainwater following the wildfire. Collectively, K+ leached from ash samples exceeded that of all other major cations combined. After the wildfire, the concentrations of all major cations increased in stream water sampled near the fire perimeter following the first storm of the season: K+ increased 12-fold, Na+ and Ca2+ increased 1.4-fold, and Mg2+ increased 1.6-fold. Our results suggested that the 12-fold increase in K+ in stream water resulted from K+ leached from ash in the fire scar. Both C and N were measured in the ash samples. The low N content of the ash indicated either high volatilization of N relative to C occurred, or burned material contained less N.
A CNN-Based System for Mobile Robot Navigation in Indoor Environments via Visual Localization with a Small Dataset
Authors: Foroughi Farzin , Chen Zonghai , Wang Jikai
Published: September 2021

Deep learning has made great advances in the field of image processing, which allows automotive devices to be more widely used in humans’ daily lives than ever before. Nowadays, the mobile robot navigation system is among the hottest topics that researchers are trying to develop by adopting deep learning methods. In this paper, we present a system that allows the mobile robot to localize and navigate autonomously in the accessible areas of an indoor environment. The proposed system exploits the Convolutional Neural Network (CNN) model’s advantage to extract data feature maps for image classification and visual localization, which attempts to precisely determine the location region of the mobile robot focusing on the topological maps of the real environment. The system attempts to precisely determine the location region of the mobile robot by integrating the CNN model and topological map of the robot workspace. A dataset with small numbers of images is acquired from the MYNT EYE camera. Furthermore, we introduce a new loss function to tackle the bounded generalization capability of the CNN model in small datasets. The proposed loss function not only considers the probability of the input data when it is allocated to its true class but also considers the probability of allocating the input data to other classes rather than its actual class. We investigate the capability of the proposed system by evaluating the empirical studies based on provided datasets. The results illustrate that the proposed system outperforms other state-of-the-art techniques in terms of accuracy and generalization capability.
Primary Energy Use and Environmental Effects of Electric Vehicles
Authors: Michaelides Efstathios E.
Published: September 2021

The global market of electric vehicles has become one of the prime growth industries of the 21st century fueled by marketing efforts, which frequently assert that electric vehicles are “very efficient” and “produce no pollution.” This article uses thermodynamic analysis to determine the primary energy needs for the propulsion of electric vehicles and applies the energy/exergy trade-offs between hydrocarbons and electricity propulsion of road vehicles. The well-to-wheels efficiency of electric vehicles is comparable to that of vehicles with internal combustion engines. Heat transfer to or from the cabin of the vehicle is calculated to determine the additional energy for heating and air-conditioning needs, which must be supplied by the battery, and the reduction of the range of the vehicle. The article also determines the advantages of using fleets of electric vehicles to offset the problems of the “duck curve” that are caused by the higher utilization of wind and solar energy sources. The effects of the substitution of internal combustion road vehicles with electric vehicles on carbon dioxide emission avoidance are also examined for several national electricity grids. It is determined that grids, which use a high fraction of coal as their primary energy source, will actually increase the carbon dioxide emissions; while grids that use a high fraction of renewables and nuclear energy will significantly decrease their carbon dioxide emissions. Globally, the carbon dioxide emissions will decrease by approximately 16% with the introduction of electric vehicles.
A Review of 3D Object Detection for Autonomous Driving of Electric Vehicles
Authors: Dai Deyun , Chen Zonghai , Bao Peng , Wang Jikai
Published: September 2021

In recent years, electric vehicles have achieved rapid development. Intelligence is one of the important trends to promote the development of electric vehicles. As a result, autonomous driving system is becoming one of the core systems of electric vehicles. Considering that environmental perception is the basis of intelligent planning and safe decision-making for intelligent vehicles, this paper presents a survey of the existing perceptual methods in vehicles, especially 3D object detection, which guarantees the reliability and safety of vehicles. In this review, we first introduce the role of perceptual module in autonomous driving system and a relationship with other modules. Then, we classify and analyze the corresponding perception methods based on the different sensors. Finally, we compare the performance of the surveyed works on public datasets and discuss the possible future research interests.
Ni élimination, ni réduction, ni intégration, alors quoi ? Sciences de l’esprit, neurosciences et modèle instrumental
Authors: Forest Denis
Published: September 2021

Depuis la publication de Neurophilosophie en 1986, plusieurs théories ont visé à rendre compte en philosophie de ce que les relations entre psychologie et neurosciences devraient être – en particulier, l’éliminativisme, le réductionnisme et le modèle intégratif plus récent qui conçoit l’explication psychologique comme une simple esquisse par rapport à l’explication neurocognitive de type mécaniste. Cet article présente une discussion critique de ces modèles. En particulier, faire de la psychologie un composant à l’intérieur du programme multidisciplinaire plus large des neurosciences peut conduire à négliger les préoccupations des chercheurs dans les diverses sciences de l’esprit et à méconnaître les raisons pour lesquelles ils attachent de l’importance aux neurosciences lorsqu’ils cherchent à atteindre les buts qui sont constitutifs de leurs disciplines. En conséquence, un modèle alternatif est proposé pour penser l’utilité que peuvent avoir les neurosciences pour la psychologie.
Que voit-on (ou pas) en IRM ?
Authors: Le bihan Denis
Published: September 2021

What do (or don't) we see with MRI?. The understanding of our brain is a major scientific challenge of the 21th century. In addition to scientific aims, elucidating the biological mechanisms underlying our mental life, the goals are mainly to understand and essentially prevent and cure the disorders of brain function, the neurological and psychiatric illnesses, in aging populations, and beyond to repair or even replicate brain function. Neuroimaging, especially MRI (Magnetic Resonance Imaging) has become an inescapable approach toward this quest as neuroimaging allows to investigate non invasively and in situ, in healthy or diseased humans, the relationship between brain structure and function. Fine brain anatomy and brain connections can be observed in 3 dimensions, and networks involved in whatever cognitive processes become visible. Still, those imaging methods have limits, first from their physical principles, but mainly from the ways results are obtained and exploited. It is tempting to rely on those beautify images to feed the “neo fields” which are neuro-economics, neuro-education, neuro-marketing, neuro-ethics or even neuro-politics, but modesty must prevail to avoid any hasty overinterpretation of those images. The object of this short article is to illustrate, from a few examples, the potential and limits of neuroimaging, especially MRI, to explore the human brain.
La psychanalyse entre science et réalité : conditions d’un débat scientifique
Authors: Georgieff Nicolas
Published: September 2021

Cet article propose de poser le débat classique entre sciences de l’esprit et psychanalyse à partir d’une définition de cette dernière comme méthode ou pratique interpersonnelle, plutôt que comme une théorie générale du psychique ou du mental qui serait comparable (ou incomparable !) aux théories psychologiques contemporaines. Corrélativement, il propose que le point d’achoppement principal du débat n’est pas la scientificité ou non de la psychanalyse, mais la croyance des scientifiques dans sa réalité. En effet, l’accès à la réalité de l’objet psychanalytique, c’est-à-dire de son processus tel qu’il apparait dans la pratique, reste aujourd’hui encore dépendant de l’expérience personnelle de la situation psychanalytique, et se réduit sinon seulement au témoignage de ceux qui ont fait cette expérience. Un autre mode d’accès à cet objet, mode de constat de sa réalité et de son étude, est donc nécessaire pour ouvrir réellement le débat entre psychanalyse et sciences. C’est un défi méthodologique pour les sciences autant qu’un défi éthique et technique pour la psychanalyse.
Neuroéducation et neuropsychanalyse : du neuroenchantement aux neurofoutaises
Authors: Ramus Franck
Published: September 2021

Dans cet article, nous examinons la tendance actuelle consistant à ajouter le préfixe « neuro » à différents domaines et disciplines, dans l'espoir d'augmenter leur crédibilité scientifique ou leur prestige auprès du grand public en tirant partie de l'aura et de la réputation de « science dure » des neurosciences. Nous illustrons cette tendance par deux études de cas consacrées à la neuroéducation et à la neuropsychanalyse, qui appellent des conclusions en parties différentes, la première relevant de la neuroprétention, la seconde des neurofoutaises.
GOOD, BAD AND DARK BITCOIN: A Systematic Literature Review
Authors: Rahardja Untung , Aini Qurotul , Purnamaharahap Eka , Raihan Raihan
Published: September 2021

Crypto currency investments have been in demand since the popularity of bitcoin. Crypto currency (cryptocurrency) is a currency based on cryptography or digital currency. The birth of bitcoin as one of the important foundations in the formation of the reputation of the crypto currency. Investing in crypto currencies is considered to provide more security and large profits for investors, with a cryptographic system the crypto currency is difficult to hack and fake. This cryptocurrency is also a digital key with encryption capabilities as security and validity, as well as real value that can be exchanged as an option. The most popular type of virtual currency is known as Bitcoin, and its popularity and strength continue to increase. At first glance, Bitcoin is very confusing. But here are ten facts that can be explained in simple terms, exactly what that little coin is and what happens.
Five-year survival and biomarkers of sympatho-adrenal, neurohumoral, immune activation, fibrosis in patients with early and late superresponse to cardiac resynchronization therapy
Authors: Kuznetsov V. A. , Enina T. N. , Gorbatenko E. A. , Soldatova A. M. , Shirokov N. E. , Petelina T. I. , Winemark L. A.
Published: September 2021

Methods. 82 SR (80.5% men; mean age 60.4±9.3; 45 (54.9%) with CAD) were divided according to period of LVESV maximum decrease: Gr.1 (n=19)- <24months (14.0 [8.0; 21.0]), Gr.2 (n=63)->24 months (59[43.0; 84.0]). Dynamics of echocardiography, adrenaline (ADR) plasma levels, norepinephrine (NE), interleukins (IL) 1β, 6, 10, TNF-α, NT-proBNP, MMP-9, TIMP-1, 4, were examined. Five-year survival was estimated by Kaplan-Meier method. ROC analysis and logistic regression were applied to identify late CRT response factors.

Results. Initially, groups didn’t differ by clinical and echocardiographic findings. At baseline, Gr.2 had larger ADR (p=0.049) and NE (p=0.061). Rate of change in NE was opposite in groups during CRT: ΔNE increased in Gr.1 and decreased in Gr.2. (p=0.015), which was associated with better reverse cardiac remodeling (lower LV end systolic diameter, LV end diastolic diameter, LVESV, LV end diastolic volume), decrease in activity of immune inflammation (decrease in levels of IL-1β, 6, 10, TNF-α) and fibrosis formation (decrease in TIMP- 1, enhancement of MMP-9/TIMP-1). Cut-off value of 2.55 ng/ml for NE complied with the highest sensitivity (80%), specificity (60%), AUC=0.693 (p=0.011) for predicting late CRT response. Proportion of patients with NE<2.55 ng/ml was 21.1% in Gr.1 and 59.7% in Gr.2, (p=0.003), mean follow-up period was 45.8±0.3 and 94.9±35.9 months (p<0.001), respectively All SR of Gr.2 were alive within 5 years, survival rate was 50% in Gr.1 (Log-Rank test<0.001). NE was associated with late CRT response (OR 8.0 (95%CI 1.5-42.8), p=0.015).

Conclusion. Late CRT response was accompanied by increased life expectancy, better 5-year survival, associated with greater reverse cardiac remodeling, decreased fibrosis activity, immune, neurohumoral, sympathoadrenal activation. When NE level was less than 2.55 ng/ml, probability of late response increased 8-fold.
Cardiac contractility modulation therapy in elderly patients with chronic heart failure: results of the 12-month follow-up
Authors: Chugunov I. A. , Davtyan K. V. , Topchyan A. H. , Mironova N. A. , Gupalo E. M.
Published: September 2021

Aim. This study aimed to evaluate the efficacy and safety of cardiac contractility modulation (CCM) therapy in elderly patients with heart failure with reduced ejection fraction (HFrEF).

Methods. Sixteen patients older than 65 years old (median age 70 years) undergoing CCM Optimizer (Impulse Dynamics) device implantation due to HFrEF (NYHA class II - 9 (56%), III - 4 (25%), IV - 3 (19%)) were enrolled in this two-center observational study. Before implantation 6-minute walk test (6MWT), transthoracic echocardiography (TTE) was performed on all patients, and NTproBNP levels were assessed. The follow-up duration was 12 months with 2, 6, 12-month follow-up visits. Control 6MWT, TTE and NTproBNP tests were performed at 6-month and 12-month follow-up visits.

Results. Two patients died during follow-up due to HF decompensation. The remaining patients showed a significant improvement in 6MWT (350 m vs 402.5 m, p=0,01). We also noted a tendency towards the left ventricular EF improvement (33% vs 40%, p=0,2) and lower values of NTproBNP levels (1112 pg/ml vs 527 pg/ml, p=0,19).

Conclusion. CCM therapy is a safe and efficient additional treatment option to manage elderly patients with HFrEF for reducing signs and symptoms of HF.
X anniversary course of heart rhythm disorders
Authors: Editorial Article
Published: September 2021

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The first record of an invasive Caucasian land snail Harmozica ravergiensis in Central Ukraine (Stylommatophora, Hygromiidae)
Authors: Balashov I. , Shvydka Z. , Vasyliuk O. , Marushchak O. , Shyriaeva D. , Oskyrko O.
Published: September 2021

Large population of Caucasian mollusc Harmozica ravergiensis was found in the Gvozdiv village in Kyiv region. There were no reports of this species from Central Ukraine before and this locality is most northwestern for it. Population was monitored during 2015-2017 and evidently survived two winters on the open grounds in this period. Shell and reproductive anatomy of H. ravergiensis from Gvozdiv are described and illustrated. The presence of the species in area is discussed. Moreover, another new finding of H. ravergiensis is reported: in Petrykivka village (Dnipropetrovsk region, Southern Ukraine) in 2016.
Description of two new species of Callochiton (Mollusca: Polyplacophora) from Vietnam and Tonga
Authors: Sirenko B. I.
Published: September 2021

Two new species of the genus Callochiton are described: C. sonchaensis sp. nov. from Vietnam and C. tongaensis sp. nov. from Tonga. They differ from other congeneric species in having a different number, shape, size and arrangement of grooves on the pleural areas of the intermediate and tail valves, the number of slits, the size of the dorsal spicules, and sometimes the coloration of the girdle. Absence of Callochiton in the Caribbean Sea and along the coasts of Central and North Americas was, perhaps, due to late advancement of species from this genus into the Tethys from the regions near Gondwana.
Solution of taxonomic status of Unio mongolicus Middendorff, 1851 (Bivalvia: Unionidae) from the type locality in Transbaikalia and history of its taxonomy
Authors: Klishko O. K. , Lopes-Lima M. , Froufe E. , Bogan A. E.
Published: September 2021

Unio mongolicus Middendorff, 1851 (Bivalvia: Unionidae) was described from Gorbitza mountain stream (in the east of Trans-Baikal Territory, Russia) and the taxonomy has changed over the past century and a half. A specimen of Middendorffinaia mongolica from the Gorbitza stream collected 160 years later is a match with the type illustration of Unio mongolicus from the type locality. Comparison of the shell morphology of the type specimen of U. mongolicus with the modern specimen collected from this location, combined with our analyses of molecular, anatomical and conchological data of M. cf. mongolica species from rivers of the Upper Amur River Basin and the far eastern Russia, revealed that these taxa all belong to a single polymorphic species. The molecular analysis of the COI gene fragment of mtDNA of examined Comparatory Species assigned to Middendorffinaia Moskvicheva et Starobogatov, 1973 confirmed they are only intraspecific forms of M. mongolica. Morphological and genetic distances between M. mongolica and Nodularia douglasiae (Griffith et Pidgeon, 1833) confirmed their assignment to two independent genera. Based on conchological characteristics and anatomical features, the differences between morphologically similar species M. mongolica, N. douglasiae and Unio crassus Retzius, 1788 were determined. History of the taxonomic changes for Unio mongolicus is discussed.
“Invasion” in the Russian Arctic: is global Climate Changea real driver? A remarkable case of two nudibranch species
Authors: Ekimova Irina A. , Antokhina Tatiana I. , Schepetov Dimitry М.
Published: September 2021

In present paper, we report the first findings of two large and conspicuous nudibranch species for Russian waters - Goniodoris nodosa and Flabellina pellucida. Both species show wide distribution in the northeastern Atlantic waters or even in the north-western Atlantic in the case of F. pellucida. The morphology of both species was studied using anatomical dissections and scanning electron microscopy. Molecular diversity was assessed by sequencing of COI marker and reconstruction of haplotype networks. In the Barents Sea, both species show minor genetic differences from their European relatives and similar morphological characters. Putative explanations of new findings for Russian Arctic are discussed.
Mysterious Erepta odontina (Morelet, 1851) (Gastropoda, Pulmonata, Helicarionidae)
Authors: Schileyko Anatoly
Published: September 2021

Anatomical study of five specimens of an endemic species of the Mauritius Island, Erepta odontina showed that within one population disappearing of additional organs of the reproductive tract (epiphallic caecum, penial caecum, penial appendix, flagellum and retractor of penis) occurs in four different combinations. It is significant that the shells of all five specimens were practically identical. It is assumed that the described phenomenon has a mutagenic nature and is regarded as a rare (if not unique) case of reduction (up to complete disappearance) of additional organs within one population.
Pengaruh Manajemen Modal Kerja Terhadap Profitabilitas Dengan Moderasi Financial Constraints
Authors: Artha Merika Indah Puspita Sari  , Rahmat Setiawan
Published: September 2021

Abstract

               This study aims to determine the effect of working capital management on profitaility. Working capital management here is seen through cash conversion cycle company. The study also looked at the moderating effect of financial constraints on the effect of working capital management on profitaility. The research used purposive sampling method and the analytical method used in this study is multiple linear regression. Based on the results of the analysis it can be concluded that cash conversion cycle has a significant negative effect on profitability. The financial constraints variabel strengthens the negative effect of the cash conversion cycle on profitability.

 

Keywords: working capital management, cash conversion cycle, profitability, and financial constraints.

Abstrak

Penelitian ini bertujuan untuk mengetahui pengaruh manajemen modal kerja terhadap profitabilitas. Manajemen modal kerja disini dilihat melalui siklus konversi kas perusahaan. Penelitian ini juga melihat efek moderasi financial constraints pada pengaruh manajemen modal kerja terhadap profitabilitas. Metode pengambilan sampel menggunakan purposive sampling, dan metode analisis yang digunakan pada penelitian ini adalah metode regresi linier berganda. Berdasarkan hasil analisis dapat disimpulkan bahwa manajemen modal kerja melalui siklus konversi kas berpengaruh negatif signifikan terhadap profitabilitas. Variabel financial constraints memperkuat pengaruh negatif siklus konversi kas terhadap profitabilitas.

Kata Kunci: manajemen modal kerja, siklus konversi kas, profitabilitas dan financial constraints.
Pemanfaatan Teknologi Informasi dan Manajemen Perubahan Organisasi dalam Mendukung Bisnis Berkelanjutan Pasca Covid-19 pada UMKM di Kota Bengkulu
Authors:   Universitas Prof. Dr. Hazairin, S.H. Bengkulu, Murti Hafiza Tri , Puspita Veny ,   Universitas Prof. Dr. Hazairin, S.H. Bengkulu, Ratih Puspa ,   Universitas Prof. Dr. Hazairin, S.H. Bengkulu
Published: September 2021

Abstract The purpose of this study is to examine how information technology and organizational change management can be used to support sustainable business in Bengkulu City MSMEs following Covid-19. To survive the COVID-19 pandemic, the role of information technology and organizational change management is critical, as information technology serves as a manager of the information available at the time. Change management provides a structured approach for assisting individuals within an organization in transitioning from their current state to their desired state. Organizational change management is concerned with identifying groups and individuals who must change. Not only that, organizational change management entails the development of customized plans for successfully implementing the change. The primary objective of change management is to prepare for a smooth, successful transition.
Work Engagement pada Karyawan di DKI Jakarta: Pengaruh Collaboration Skills, Digital Leadership, dan Perceived Organizational Support
Authors:   Jurusan Manajemen, Bina Nusantara University, Jakarta Barat, Rizky Karina , Ramadhani Putri ,   Jurusan Manajemen, Bina Nusantara University, Jakarta Barat, Husnia Rauzatul ,   Jurusan Manajemen, Bina Nusantara University, Jakarta Barat, Saputra Nopriadi ,   Jurusan Manajemen, Bina Nusantara University, Jakarta Barat
Published: September 2021

Abstract Purpose: This research is to examine the effect of collaboration skills on work engagement, digital leadership on work engagement, perceived organizational support on work engagement, and collaboration skills, digital leadership, and perceived organizational support (simultaneously) on employees in DKI Jakarta. Research Methodology: This study used descriptive research methods and data collection techniques. Questionnaires were distributed to 388 DKI Jakarta employees. The analytical method used was descriptive analysis, validity test, reliability test, correlation test, difference test, and hypothesis testing. Results: The results of this study indicate that collaboration skills have a significant effect on work engagement, digital leadership has a significant effect on work engagement, digital leadership has a significant influence on collaboration skills, perceived organizational support has a significant effect on work engagement, perceived organizational support has a significant influence on collaboration skills, and perceived organizational support has a significant influence on digital leadership for employees in DKI Jakarta. Limitations: This study only assesses the variables of work engagement, collaboration skills, digital leadership, and perceived organizational support, and only employees who work in DKI Jakarta, as well as the limited literacy on collaboration skills and digital leadership. Contribution: It can be used as a reference in developing company strategies in increasing work engagement, and as a means of increasing knowledge about work engagement, collaboration skills, digital leadership, and perceived organizational support.
Overcoming Data Availability Attacks in Blockchain Systems: LDPC Code Design for Coded Merkle Tree
Authors: Mitra Debarnab , Tauz Lev , Dolecek Lara
Published: September 2021

In blockchain systems, full nodes store the entire blockchain ledger and validate all transactions in the system by operating on the entire ledger. However, for better scalability and decentralization of the system, blockchains also run light nodes that only store a small portion of the ledger. In blockchain systems having a majority of malicious full nodes, light nodes are vulnerable to a data availability (DA) attack. In this attack, a malicious node makes the light nodes accept an invalid block by hiding the invalid portion of the block from the nodes in the system. Recently, a technique based on LDPC codes called Coded Merkle Tree (CMT) was proposed by Yu et al. that enables light nodes to detect a DA attack by randomly requesting/sampling portions of the block from the malicious node. However, light nodes fail to detect a DA attack with high probability if a malicious node hides a small stopping set of the LDPC code. To mitigate this problem, Yu et al. used well-studied techniques to design random LDPC codes with high minimum stopping set size. Although effective, these codes are not necessarily optimal for this application. In this paper, we demonstrate that a suitable co-design of specialized LDPC codes and the light node sampling strategy can improve the probability of detection of DA attacks. We consider different adversary models based on their computational capabilities of finding stopping sets in LDPC codes. For a weak adversary model, we devise a new LDPC code construction termed as the entropy-constrained PEG (EC-PEG) algorithm which concentrates stopping sets to a small group of variable nodes. We demonstrate that the EC-PEG algorithm coupled with a greedy sampling strategy improves the probability of detection of DA attacks. For stronger adversary models, we provide a co-design of a sampling strategy called linear-programming-sampling (LP-sampling) and an LDPC code construction called linear-programming-constrained PEG (LC-PEG) algorithm. The new co-design demonstrates a higher probability of detection of DA attacks compared to approaches proposed in earlier literature.
Kecenderungan Narsistik dengan Intensitas Penggunaan Aplikasi Tiktok pada Mahasiswa
Authors: Najah Dita Hidayatul , Putra Ardian Adi , Aiyuda Nurul
Published: September 2021

Peningkatan penggunaan aplikasi Tiktok terjadi ketika individu menggunakan aplikasi secara terus-menerus yang disebut dengan intensitas penggunaan aplikasi Tiktok. Menggunakan aplikasi Tiktok secara berulang-ulang dan berlebihan akan memberikan dampak buruk terhadap kepribadian seperti, kecenderungan narsitik. Kecenderungan narsistik adalah kondisi dimana individu menginginkan perhatian yang berlebihan, keinginan untuk dikagumi, dan empati yang kurang terhadap orang lain. Penelitian ini menggunakan metode kuantitatif korelasional. Subjek dalam penelitian ini sebanyak 400 responden yakni 97 laki-laki dan 303 perempuan merupakan mahasiswa Pekanbaru yang bermain Tiktok dengan rentang usia 18-31 tahun, adapun teknik penentuan sampel yang digunakan adalah quota sampling. Alat pengumpul data dalam penelitian ini berjumlah 2 skala, yaitu skala kecenderungan narsistik dan skala intensitas penggunaan aplikasi Tiktok. Hasil dalam penelitian ini menunjukkan adanya hubungan signifikan antara kecenderungan narsistik dengan intensitas penggunaan aplikasi Tiktok pada mahasiswa Pekanbaru dengan arah hubungan yang positif. Semakin tinggi kecenderungan narsistik maka semakin tinggi pula intensitas penggunaan aplikasi Tiktok dan sebaliknya.
O preconceito na educação física escolar: percepção de professores da rede pública de município do sul do Brasil
Authors: Santos Maiara Scheila Freitas , Montiel Fabiana Celente , Silva Felipe Fernando Guimarães da , Ribeiro José Antônio Bicca , Afonso Mariângela da Rosa , Teixeira Fernanda de Souza
Published: September 2021

INTRODUÇÃO: O presente trabalho versa sobre as manifestações de preconceito identificadas por professores de Educação Física, da rede pública de ensino de um município do sul do Brasil, e as consequências de tais manifestações no andamento de suas aulas. OBJETIVO: Buscou-se identificar os tipos de preconceitos observados nas aulas de Educação Física e as consequências para: o aluno agressor, o aluno que sofre o preconceito e a turma na qual estão inseridos. MÉTODOS: Trata-se de um estudo com abordagem qualitativa, de caráter descritivo, em que a coleta de dados se deu por meio de entrevista. Para a análise dos dados utilizou-se a técnica de análise de conteúdo. Foram entrevistados 27 professores de Educação Física, sendo 11 homens e 16 mulheres. RESULTADOS: Os resultados apontaram que os tipos de preconceitos mais frequentemente identificados pelos professores nas aulas de Educação Física são étnico-racial, de diferenças corporais e aqueles relativos à classe social. Os dados demonstraram que o preconceito fomenta a agressividade; além de causar traumas, diminuição da autoestima e redução na participação das atividades propostas a quem sofre a agressão. CONCLUSÃO: Ficou evidenciada a carência de ações mais efetivas relacionadas à redução das manifestações de preconceito dentro do ambiente escolar.