bluuebunny/crossref_metadata_2025 huggingface dataset:
Applying a novel visual-to-touch sensory substitution for studying tactile reference frames
Authors: Yizhar Or , Buchs Galit , Heimler Benedetta , Friedman Doron , Amedi Amir
Published: May 2021

Perceiving the spatial location and physical dimensions of touched objects is crucial for goal-directed actions. To achieve this, our brain transforms skin-based coordinates into a reference frame by integrating visual and posture information. In the current study, we examine the role of posture in mapping tactile sensations to a visual image. We developed a new visual-to-touch sensory substitution device that transforms images into a sequence of vibrations on the arm. 52 blindfolded participants performed spatial recognition tasks in three different arm postures and had to switch postures between trial blocks. As participants were not told which side of the device is down and which is up, they could choose how to map its vertical axis in their responses. Contrary to previous findings, we show that new proprioceptive inputs can be overridden in mapping tactile sensations. We discuss the results within the context of the spatial task and the various sensory contributions to the process.
A functional requirement for sex-determination M/m locus region lncRNA genes in Aedes aegypti female larvae
Authors: Mysore Keshava , Hapairai Limb K. , Li Ping , Roethele Joseph B. , Sun Longhua , Igiede Jessica , Misenti Joi K. , Duman-Scheel Molly
Published: May 2021

Although many putative long non-coding RNA (lncRNA) genes have been identified in insect genomes, few of these genes have been functionally validated. A screen for female-specific larvicides that facilitate Aedes aegypti male sex separation uncovered multiple interfering RNAs with target sites in lncRNA genes located in the M/m locus region, including loci within or tightly linked to the sex determination locus. Larval consumption of a Saccharomyces cerevisiae (yeast) strain engineered to express interfering RNA corresponding to lncRNA transcripts resulted in significant female death, yet had no impact on male survival or fitness. Incorporation of the yeast larvicides into mass culturing protocols facilitated scaled production and separation of fit adult males, indicating that yeast larvicides could benefit mosquito population control strategies that rely on mass releases of male mosquitoes. These studies functionally verified a female-specific developmental requirement for M/m locus region lncRNA genes, suggesting that sexually antagonistic lncRNA genes found within this highly repetitive pericentromeric DNA sequence may be contributing to the evolution of A. aegypti sex chromosomes.
Fivefold higher abundance of ticks (Acari: Ixodida) on the European roe deer (Capreolus capreolus L.) forest than field ecotypes
Authors: Opalińska Patrycja , Wierzbicka Anna , Asman Marek , Rączka Grzegorz , Dyderski Marcin K. , Nowak-Chmura Magdalena
Published: May 2021

The European roe deer (Capreolus capreolus) is the most common deer species in Europe. The species can be a reservoir of some tick-borne diseases but it is primarily recognized for its contribution as an amplifier host. In Central Europe, two roe deer ecotypes are living in adjacent areas: field and forest. We investigated differences in tick load and species composition on these two ecotypes. We collected ticks from 160 (80 the forest ecotype and 80 the field ecotype) roe deer culled in Wielkopolska Region (West-Central Poland). The most common was Ixodes ricinus (n = 1610; 99%) followed by Ixodes hexagonus (n = 22; 1%). The dominant life stage of the ticks was female. Prevalence was higher for forest roe deer. Mean number of ticks found on the forest ecotype was almost fivefold higher than on the field ecotype (3.75 ± 0.83 vs. 0.77 ± 0.20 ticks). The mean probability of tick occurrence was threefold higher in the forest (0.915 ± 0.050) than the field ecotype (0.279 ± 0.125). The most infested body parts of roe deer from both ecotypes were the neck and the head.
Using molecular dynamics simulations to prioritize and understand AI-generated cell penetrating peptides
Authors: Tran Duy Phuoc , Tada Seiichi , Yumoto Akiko , Kitao Akio , Ito Yoshihiro , Uzawa Takanori , Tsuda Koji
Published: May 2021

Cell-penetrating peptides have important therapeutic applications in drug delivery, but the variety of known cell-penetrating peptides is still limited. With a promise to accelerate peptide development, artificial intelligence (AI) techniques including deep generative models are currently in spotlight. Scientists, however, are often overwhelmed by an excessive number of unannotated sequences generated by AI and find it difficult to obtain insights to prioritize them for experimental validation. To avoid this pitfall, we leverage molecular dynamics (MD) simulations to obtain mechanistic information to prioritize and understand AI-generated peptides. A mechanistic score of permeability is computed from five steered MD simulations starting from different initial structures predicted by homology modelling. To compensate for variability of predicted structures, the score is computed with sample variance penalization so that a peptide with consistent behaviour is highly evaluated. Our computational pipeline involving deep learning, homology modelling, MD simulations and synthesizability assessment generated 24 novel peptide sequences. The top-scoring peptide showed a consistent pattern of conformational change in all simulations regardless of initial structures. As a result of wet-lab-experiments, our peptide showed better permeability and weaker toxicity in comparison to a clinically used peptide, TAT. Our result demonstrates how MD simulations can support de novo peptide design by providing mechanistic information supplementing statistical inference.
Author Correction: Metagenomic insights of the infant microbiome community structure and function across multiple sites in the United States
Authors: Casaburi Giorgio , Duar Rebbeca M. , Brown Heather , Mitchell Ryan D. , Kazi Sufyan , Chew Stephanie , Cagney Orla , Flannery Robin L. , Sylvester Karl G. , Frese Steven A. , Henrick Bethany M. , Freeman Samara L.
Published: May 2021

An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Real-time observation of a correlation-driven sub 3 fs charge migration in ionised adenine
Authors: Månsson Erik P. , Latini Simone , Covito Fabio , Wanie Vincent , Galli Mara , Perfetto Enrico , Stefanucci Gianluca , Hübener Hannes , De Giovannini Umberto , Castrovilli Mattea C. , Trabattoni Andrea , Frassetto Fabio , Poletto Luca , Greenwood Jason B. , Légaré François , Nisoli Mauro , Rubio Angel , Calegari Francesca
Published: May 2021

Sudden ionisation of a relatively large molecule can initiate a correlation-driven process dubbed charge migration, where the electron density distribution is expected to rapidly move along the molecular backbone. Capturing this few-femtosecond or attosecond charge redistribution would represent the real-time observation of electron correlation in a molecule with the enticing prospect of following the energy flow from a single excited electron to the other coupled electrons in the system. Here, we report a time-resolved study of the correlation-driven charge migration process occurring in the nucleic-acid base adenine after ionisation with a 15–35 eV attosecond pulse. We find that the production of intact doubly charged adenine – via a shortly-delayed laser-induced second ionisation event – represents the signature of a charge inflation mechanism resulting from many-body excitation. This conclusion is supported by first-principles time-dependent simulations. These findings may contribute to the control of molecular reactivity at the electronic, few-femtosecond time scale.
Promoting the thermal back reaction of vinylheptafulvene to dihydroazulene by physisorbtion on nanoparticles
Authors: Hillers-Bendtsen Andreas Erbs , Johansen Magnus Bukhave , Mikkelsen Kurt V.
Published: May 2021

We investigate the effects of nanoparticles on molecular solar thermal energy storage systems and how one can tune chemical reactivities of a molecular photo- and thermoswitch by changing the nanoparticles.
Visible light photoredox-catalysed remote C–H functionalisation enabled by 1,5-hydrogen atom transfer (1,5-HAT)
Authors: Guo Weisi , Wang Qian , Zhu Jieping
Published: May 2021

The generation of heteroatom-centred radicals followed by intramolecular 1,5-HAT and functionalisation of the translocated carbon-centred radical is an efficient way to functionalize chemo- and regio-selectively the remote unactivated C(sp3)–H bond.
Reshaping the binding pocket of purine nucleoside phosphorylase for improved production of 2-halogenated-2′-deoxyadenosines
Authors: Liu Gaofei , Tong Xin , Wang Jialing , Wu Bin , Chu Jianlin , Jian Yongchan , He Bingfang
Published: May 2021

Semi-rational design and iterative combinatorial mutation of AmPNP with gratifyingly improved activity toward steric impediment of 2-halogenated-2′-deoxyadenosine biosynthesis.
Electrochemical immunosensor based on mussel inspired coating for simultaneous detection and elimination of Staphylococcus aureus in drinks
Authors: Wu Wenjin , Yang Yuping , Wang Lan , Xu Tingting , Wang Rui
Published: May 2021

A smart electrochemical immunosensor for the detection and elimination of Staphylococcus aureus in food with on-demand antibacterial activity.
SANS quantification of bound water in water-soluble polymers across multiple concentration regimes
Authors: Yao Helen , Olsen Bradley D.
Published: May 2021

Small-angle neutron scattering is used to measure the number of bound water molecules associating with three polymers over a wide concentration range. Different fitting workflows are evaluated and recommended depending on the concentration regime.
A monomeric methyllithium complex: synthesis and structure
Authors: Davison Nathan , Falbo Emanuele , Waddell Paul G. , Penfold Thomas J. , Lu Erli
Published: May 2021

The parent organometallic complex, methyllithium, is synthesized and characterised in its monomeric form for the first time. This is enabled by a bespoke multidentate neutral amine ligand, namely DETAN.
Solvent-tailored ordered self-assembly of oligopeptide amphiphiles to create an anisotropic meso-matrix
Authors: Jiang Yan , Zhao You , Zhang Ai-Qing , Lei Xinxiang , Qin Si-Yong
Published: May 2021

We developed a solvent-tailored ordered self-assembly strategy to create an anisotropic meso-matrix, which displays great potential to align organic molecules for structural elucidation via anisotropic NMR parameters.
Metal-doping of nanoplastics enables accurate assessment of uptake and effects on Gammarus pulex
Authors: Redondo-Hasselerharm P. E. , Vink G. , Mitrano D. M. , Koelmans A. A.
Published: May 2021

The combination of nanoplastic metal doping and biodynamic modeling allows for accurate assessment of bioaccumulation and effects on Gammarus pulex, even in a complex environmental matrix such as sediment.
Polymeric waste valorization at a crossroads: ten ways to bridge the research on model and complex/real feedstock
Authors: Hita Idoia , Sarathy S. Mani , Castaño Pedro
Published: May 2021

The valorization of polymeric wastes via depolymerization and simultaneous or subsequent catalytic treatment has gained enormous momentum. The goal of this paper is to do a virtuous circle between the subfields of model and real feedstock.
Facile room-temperature self-assembly of extended cation-free guanine-quartet network on Mo-doped Au(111) surface
Authors: Ghassami Amirreza , Oleiki Elham , Kim Dong Yeon , Shin Hyung-Joon , Lee Geunsik , Kim Kwang S.
Published: May 2021

A facile approach to enhance the stability and domain size of GQ molecular networks towards self-assemble driven single-step 2D fabrication for nucleobases of limited size at room-temperature.
Preparation and characterisation of a novel polylactic acid/hydroxyapatite/graphene oxide/aspirin drug-loaded biomimetic composite scaffold
Authors: Liu Shuqiong , Wu Xiaoyan , Hu Jiapeng , Wu Zhenzeng , Zheng Yuying
Published: May 2021

The prepared scaffold has good cytocompatibility, hemocompatibility and controlled drug release, and has biomimetic structure and drug loaded function.
Light-emitting analogues based on triphenylamine modified quinoxaline and pyridine[2,3-b]pyrazine exhibiting different mechanochromic luminescence
Authors: Ge Yuxi , Huang Bin
Published: May 2021

A series of light-emitting analogues show different mechanochromic luminescence properties with emission color changes of 42 and 10 nm.
Correction: Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film
Authors: Xian Jinhong , Chen Linchun , Niu Hanben , Qu Junle , Song Jun
Published: May 2021

Correction for ‘Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film’ by Jinhong Xian et al., Nanoscale, 2014, 6, 13994–14001, DOI: 10.1039/C4NR03678F.
A general asymmetric synthesis of artificial aliphatic and perfluoroalkylated α-amino acids by Luche's cross-electrophile coupling reaction
Authors: Gugkaeva Zalina T. , Smol'yakov Alexander F. , Maleev Victor I. , Larionov Vladimir A.
Published: May 2021

A general protocol for the asymmetric synthesis of artificial aliphatic and perfluoroalkylated α-amino acids via Luche's cross-electrophile coupling reaction promoted by a dual Zn/Cu system is reported.
Heteroleptic Cu(ii) saccharin complexes: intriguing coordination modes and properties
Authors: Mazzone Gloria , Sicilia Emilia , Szerb Elisabeta I. , La Deda Massimo , Ricciardi Loredana , Furia Emilia , Mendiguchia Barbara Sanz , Scarpelli Francesca , Crispini Alessandra , Aiello Iolinda
Published: May 2021

A new Cu(ii) O,S-coordinated saccharinate complex is reported, showing crystallochromism and NIR emission in the solid state, in silico ligand exchange reactions with N/S-donor ligands in the presence of model molecules mimicking biological targets.
The sol–gel autocombustion as a route towards highly CO2-selective, active and long-term stable Cu/ZrO2 methanol steam reforming catalysts
Authors: Ploner Kevin , Delir Kheyrollahi Nezhad Parastoo , Gili Albert , Kamutzki Franz , Gurlo Aleksander , Doran Andrew , Cao Pengfei , Heggen Marc , Köwitsch Nicolas , Armbrüster Marc , Watschinger Maximilian , Klötzer Bernhard , Penner Simon
Published: May 2021

The adaption of the sol–gel autocombustion method to the Cu/ZrO2 system opens new pathways for the specific optimisation of the activity, long-term stability and CO2 selectivity of methanol steam reforming (MSR) catalysts.
Novel hydrophobic catalysts to promote hydration at the water–oil interface
Authors: Liu Shuai , Sun Dahai , Tian Hui
Published: May 2021

The limitation of the cyclohexene hydration reaction is that it is a three-phase immiscible reaction.
Selective enhancement of upconversion luminescence for enhanced ratiometric sensing
Authors: Bae Kyuyoung , Xu Bo , Das Ananda , Wolenski Connor , Rappeport Eric , Park Wounjhang
Published: May 2021

A plasmonic nanostructure with lanthanide-doped upconversion nanoparticles for an improved ratiometric sensing platform.
A computational study for the reaction mechanism of metal-free cyanomethylation of aryl alkynoates with acetonitrile
Authors: Eşsiz Selçuk
Published: May 2021

A computational study of metal-free cyanomethylation and cyclization of aryl alkynoates with acetonitrile is carried out employing density functional theory and high-level coupled-cluster methods, such as [CCSD(T)].
Adsorption of toxic gases on borophene: surface deformation links to chemisorptions
Authors: Ta Luong Thi , Hamada Ikutaro , Morikawa Yoshitada , Dinh Van An
Published: May 2021

β12 borophene has received great attention because of its intriguing mechanical and electronic properties. One of the possible applications of borophene is gas sensing.
Obtaining lignocellulosic biomass-based catalysts and their catalytic activity in cellobiose hydrolysis and acetic acid esterification reactions
Authors: Godina Daniela , Meile Kristine , Zhurinsh Aivars
Published: May 2021

In this work different biochars that were obtained as a by-product from birch chip fast pyrolysis and carbonization were used as is or chemically/physically treated. The characterisation was done using CB hydrolysis and acetic acid esterification.
Correction: Roles of water in the formation and preparation of graphene oxide
Authors: Zhang Qiang , Yang Yuying , Fan Huiqing , Feng Liu , Wen Guangwu , Qin Lu-Chang
Published: May 2021

Correction for ‘Roles of water in the formation and preparation of graphene oxide’ by Qiang Zhang et al., RSC Adv., 2021, 11, 15808–15816, DOI: 10.1039/D0RA10026A.
Correction: Balancing the anode and cathode using a reduced graphene binder for boosting both energy and power density of hybrid supercapacitors
Authors: Choi Ji-Hyuk , Kim Byung-su
Published: May 2021

Correction for ‘Balancing the anode and cathode using a reduced graphene binder for boosting both energy and power density of hybrid supercapacitors’ by Ji-Hyuk Choi et al., Sustainable Energy Fuels, 2021, 5, 1988–1994, DOI: 10.1039/D0SE01860K.
A “turn-on” Cr3+ ion probe based on non-luminescent metal–organic framework-new strategy to prepare a recovery probe
Authors: Zhang Pei-Pei , Song Bo , Li Zhongyi , Zhang Jian-Jun , Ni Ai-Yun , Chen Jun , Ni Jun , Liu Shuqin , Duan Chunying
Published: May 2021

Present here is a MOF probe, which exhibits a remarkable luminescence recovery for the selective detection of Cr3+ ion with a detection limit of 7.52 × 10−8 M, as well as a new pre-quench strategy and recognition mechanism for MOF-based probes.
Fast and durable anodes for sodium-/potassium-ion hybrid capacitors: tailoring self-adaptive nanocages inside hybrid fibers with high alignment
Authors: Yan Dukang , Xie Mingxue , Shao Yiying , Chen Meng , Zhang Sen , Deng Chao
Published: May 2021

The fast kinetics and high durability of SAAF aligned hybrid fibers resolve the imbalance between the anode and cathode and result in high-performance SIHCs/PIHCs.
Root hairs: the villi of plants
Authors: Bienert Manuela Désirée , Werner Lena M. , Wimmer Monika A. , Bienert Gerd Patrick
Published: May 2021

Strikingly, evolution shaped similar tubular structures at the µm to mm scale in roots of sessile plants and in small intestines of mobile mammals to ensure an efficient transfer of essential nutrients from ‘dead matter' into biota. These structures, named root hairs (RHs) in plants and villi in mammals, numerously stretch into the environment, and extremely enlarge root and intestine surfaces. They are believed to forage for nutrients, and mediate their uptake. While the conceptional understanding of plant RH function in hydromineral nutrition seems clear, experimental evidence presented in textbooks is restricted to a very limited number of reference-nutrients. Here, we make an element-by-element journey through the periodic table and link individual nutrient availabilities to the development, structure/shape and function of RHs. Based on recent developments in molecular biology and the identification of mutants differing in number, length or other shape-related characteristics of RHs in various plant species, we present comprehensive advances in (i) the physiological role of RHs for the uptake of specific nutrients, (ii) the developmental and morphological responses of RHs to element availability and (iii) RH-localized nutrient transport proteins. Our update identifies crucial roles of RHs for hydromineral nutrition, mostly under nutrient and/or water limiting conditions, and highlights the influence of certain mineral availabilities on early stages of RH development, suggesting that nutritional stimuli, as deficiencies in P, Mn or B, can even dominate over intrinsic developmental programs underlying RH differentiation.
Change the Things You Can: Modifiable Parent Characteristics Predict High-Quality Early Language Interaction Within Socioeconomic Status
Authors: Alper Rebecca M. , Beiting Molly , Luo Rufan , Jaen Julia , Peel Michaela , Levi Omer , Robinson Caitanne , Hirsh-Pasek Kathy
Published: May 2021

Purpose

Understanding variability sources in early language interaction is critical to identifying children whose development is at risk and designing interventions. Variability across socioeconomic status (SES) groups has been extensively explored. However, SES is a limited individual clinical indicator. For example, it is not generally directly modifiable. The purpose of this study was to examine if child language ability, input quantity and quality, and dyadic interaction were associated with modifiable caregiver characteristics—self-efficacy and developmental knowledge.

Method

We conducted secondary analyses using the baseline data (n= 41 dyads enrolled,n= 30 analyzed) from a longitudinal study. Mothers and children (1;0–2;3 [years;months]) in low-income households completed demographic questionnaires, self-efficacy and developmental knowledge measures, child language assessments, and interaction samples. We used linear regression models to examine the relationship between self-efficacy, developmental knowledge, and outcomes.

Results

Child receptive and expressive language scores were significantly associated with mothers' self-efficacy, knowledge, and Efficacy × Knowledge interaction. Specifically, maternal self-efficacy was positively associated with child language only in the context of high developmental knowledge. Neither self-efficacy nor developmental knowledge was significantly associated with the number of total or different words mothers produced. However, self-efficacy was significantly and positively associated with the rate of child-initiated conversational turns per minute, controlling for the number of child utterances. Mothers with higher self-efficacy responded more readily to their children than those with lower self-efficacy.

Conclusions

Child language ability and interaction quality vary based on modifiable parent characteristics. Modifiable individual characteristics should be considered in early language interaction within and across SES groups.
A data‐driven chassis coordination control strategy
Authors: Tian Entong , Guan Jifu , Sun Chuanyao , Gu Liuheng , Zhang Yifei
Published: May 2021

Collaborative control strategy based on different driving conditions is a challenge for chassis systems with various electronic control units. This paper proposes a chassis cooperative control strategy based on vehicle inertial sensor data. Its novelty lies in the fact that it greatly simplifies the judgment logic while classifying various driving behaviours, and further reduces the possibility of bad control operation caused by misjudgement of driving state through heuristic decision logic. The clustering algorithm based on triaxial acceleration and angular velocity data was used to identify the driving behaviour of the vehicle, and the complex driving conditions were simplified into a single driving condition. The multi‐axis weighted fusion method is used to extend the data and improve the generalization performance of the data. In order to improve the stability of steering control, S‐type function is used to allocate the weights of AFS and DYC. The proposed control strategy is tested in the CarSim/Simulink co‐simulation environment, and the simulation results of two key driving scenarios (double lane change and emergency braking) show that the proposed control strategy can effectively improve the vehicle handling and safety.
Digital maturity of territories during digital transformation
Authors: Kapkaev Yuner , Kadyrov Pavel
Published: May 2021

The formation of a full-fledged digital national economy integrated into a single world order is today’s trend. Under a single technological human habitat, it is necessary to understand territories as separate systemic mechanisms of the state, lined up in a logical sequence region-city-municipality city-municipality of each element’s region position to the previous and subsequent ones. That is consideration of the socio-economic development of the system from the standpoint of the agglomeration effect. Based on the above, the article considered various approaches to identifying a territory from the point of view of digital maturity in the global digital transformation process. The existing methods for assessing the digital maturity of Russian regions are considered, groups of metrics for such an assessment are given, and a critical assessment of existing methods is given to develop new ones or improve old ones. The rationale for this is the ability to track digital transformation dynamics through the digital maturity of territories.
Application of artificial intelligence in human resource management in the agricultural sector
Authors: Evseeva Svetlana , Evseeva Oksana , Burmistrov Andrei , Siniavina Maria
Published: May 2021

Digitalization of all spheres of life has become one of the main directions of development in many countries of the world. Artificial intelligence technology has a wide range of applications in various fields. The study aims to identify artificial intelligence usage in human resource management by analysing functions. Qualitative methods are used in the study. As the result, artificial intelligence tools were analysed by matching them on human resource management functions: recruitment, onboarding, assessment, training and development, talent management, salary system, culture and engagement management, management and leadership, misconduct and compliance. Artificial intelligence technologies provide many opportunities for modern companies. Study in detail companies using AI in HR functions and possible changes in the HR manager profession and role of HR in business are future research directions.
Optimization of perishable goods delivery in supply chains with random demand
Authors: Anisimov Vladimir , Shaban Anton , Anisimov Evgenii , Saurenko Tatyana , Yavorsky Vladimir
Published: May 2021

The article suggests a model for defining a rational range and volume of supply of perishable goods in their supply chains functioning at the time of random demand. In the verbal formulation, the goal of the model is to determine the range and delivery volumes of perishable goods that maximize profits with restrictions on the funds available for their purchase, storage volumes and weight, as well as on lost profits. The formalized representation of the model is determined by the properties of the supplied perishable goods. If these goods are divisible, then the model is formalized as a linear programming problem. In this case, the rational assortment and volume of goods is determined by solving it, for example, using the simplex method.If the goods under consideration are piece (indivisible), they are formalized in the form of a corresponding integer programming problem. In this case, the rational assortment and volume of goods is determined by solving it, for example, based on the branch and bound method. The peculiarity of the model is that it takes into account the stochastic nature of demand for goods, their limited shelf life, as well as the possibility of storing goods and the availability of funds necessary to purchase the next batch.
Fintech developmental trends: the role and influence of sustainable digital logistics
Authors: Svirina Anna , Appalonova Natalia , Garanin Dmitry , Lukashevich Nikita , Koshkin Igor
Published: May 2021

The paper analyzes the current trends of fintech companies’ development in relation to the quality of digital logistics. By using the data from fintech companies’ CEO interviews, we assess the key trends in fintech companies’ development over the past 3 years, reveal key technologies used by these companies and their evolution, and state the importance and relevance of digital logistics issues for fintech companies clients’ satisfaction. The research indicates that for fintech company client the ease of getting through the service (optimization of information flows) appears to be more important than other characteristics of the offered product. From the theoretical point of view, our research indicates, that besides key growth driving factors, outlined in existing literature, such as strategy, prerequisites for rapid growth, business model choice, international business networks, entrepreneur’s characteristics, product development or theoretical frameworks for development, especially within the international market, the quality of digital logistics performance of fintech companies seem to matter.
Maritime trade in the Indian Ocean: value-focused thinking for BRI and CPEC by employing A’WOT hybrid technique
Authors: Mikheev Alexey , Iqbal Kanwar Muhammad Javed , Kapustina Irina , Butt Amen
Published: May 2021

Belt and Road Initiative (BRI) and China Pakistan Economic Corridor (CPEC) have so far developed the narrative of bringing prosperity and peace; particularly in the welfare context of Afro-Asian population in Indian Ocean littoral states and enhanced cooperation among countries in Asia, Europe and Africa. The grey areas needs to be analysed with Value-Focused Thinking (VFT) for the overall discourse of maritime. Thus, this study examined the emerging role of BRI viz-a-viz trade opportunities and challenges for Pakistan and China by employing A’WOT method. Results reveal that the successful BRI and CPEC endeavours will open up a door for future investment, prosperity and sustainable development in Indian Ocean Region (IOR). However, Pakistan has higher ratio of threats compare to China and relative to the opportunities considering the weaknesses due to internal and external factors. Maritime trade under BRI has success potential due to geo-strategic location of Pakistan and weaknesses can be avoided in a complete decision support manner with appropriate policy and strategic arrangements.
Features of management of objects of protected areas in urbanized territories
Authors: Kryahtunov Alexander , Bogdanova Olga , Chernykh Elena
Published: May 2021

Tyumen region is a complex subject of the Russian Federation. Management of specially protected natural areas in this region has a number of features. In this article the example of legal contradiction and complexity of decision-making in cases of development of oil and gas fields and preservation of object of especially protected natural territories is considered
Remote sensing data for Geological mapping and gold prospecting of Inteet area, northern Sudan
Authors: Ibrahim Mohammed , Kotelnikov Alexander , Podolko Pavel , Kotelnikova Elena
Published: May 2021

The mineral exploration has improved in the last decades, today there are different methods of remote exploration, that are applied in mining industry worldwide, helping to discover ore minerals deposits in zones that have not access to them. The study area of this article is located about 400 km from Khartoum, characterized by low reliefs covered by sand and gravely sand. The study wants to carry out the geological mapping and the prospective zones using remote sensing and GIS techniques. Sudan is characterized by geological formations over inaccessible areas, in that way the remote sensing technique has a great value in these conditions, saving time and money. The used methodology has been divided into three phases: Pre-field office work, field work and post-field work. The processing of the satellite images includes color band composites, in order to obtain the lithological and geological features, the different types of rocks were defined by a different color. Obtaining the following rock types: High-grade gneisses and migmatites described to comprise the basement complex, ophiolitic mafic-ultramafic rocks that appear in the northern and southern sides of the area, metasediments that cover most of the study area, syn-orogenic intrusions that cut the older mafic-ultramafic units and the metavolcanosedimentary sequences, post-orogenic intrusions and gold mineralization. Based on the image analysis results of Landsat 8 OLI, 32 ore samples were collected to analysis gold and pathfinder elements obtaining high anomalies results for Au, Ag, Cu, Zn, Pb and Fe.
Impact of Land Cover/Use Dynamics on Watershed Flow in Snoqualmie Watershed, King County, WA
Authors: Musayev Sardorbek , Musaev Ilhomjon , Nuretdinova Mashkhurakhon
Published: May 2021

Water is one of the most important natural resources flow though watersheds. It is expected that within next decade at least 36 states in the US experience water shortages. Preserving and proper management of water and watershed resources is crucial. The objective of this study is to develop SWAT model along with compatible hydrologic programs and calibrate the model to predict the volume and discharge of flow in watershed outlets. Model uses 5 distinct years of land use/cover and weather data to analyse the change in hydrologic processes within thze watershed of Snoqualmie watershed of King county in Washington state. Model shows significant improved predictions for the selected period of time but some certain assumptions suggest the model needs further improvements. Results indicate that land use change and use dynamics have an impact to the watershed flow in Snoqualmie watershed. Results of this study can be used by implementing agencies to manage water and watershed resources in the King county, WA area.
State of the inter-farm irrigation canal: in the case of Khorezm province, Uzbekistan
Authors: Matyakubov Bakhtiyar , Goziev Giyosiddin , Makhmudova Umida
Published: May 2021

The article describes the monitoring and calculations for the repair and maintenance of the “Sarchali” canal. At present, it is reported that the value of available water resources is high due to the annual decrease in irrigation water. Effective use of irrigation canals in the supply of water to the Water Consumers Association is one of the urgent tasks. During the field surveys, the current condition of the canal and the technical condition of the hydraulic structures in it were fully monitored, and as a result of many years of field data, the operation of the canal was analyzed. From the scientific point of view, the conclusion was made on the repair of the canal and its hydraulic structures or the construction of new hydraulic structures. The current condition of the Sarchali canal along the entire length of the canal was studied in the field, and based on the results of the study, it was determined to repair the canal or build new facilities.
Technology of proper use of saline soils in the conditions of Uzbekistan
Authors: Tukhtashev B , Norkulov U , Izbosarov B
Published: May 2021

In the effective use of saline soils, it is advisable to plant sunflower, corn, beetroot and other crops resistant to soil salinity. At the same time, it is necessary to plant domestic and imported crops such as millet, amaranth, and African sorghum as secondary crops in these soils. These crops, even in saline soils, can contribute to the development of livestock in Uzbekistan by producing 400-500 q/ha, and even higher yields. Most importantly thousands of hectares of land that have fallen out of agricultural use will be re-introduced into the farming system. This is one of the current issues of today. In solving this problem, the resistance to salinity, yield and product quality of agricultural crops (alfalfa, sunflower, white sorghum, sorghum, beet) grown on weak, moderate and strongly saline soils are studied and scientifically substantiated. Technologies for growing these crops will be developed depending on soil and climatic conditions and salinity levels.
Morphometric parameters of the internal organs of a water deer (Hydropotes inermis Swinhoe 1870)
Authors: Lyubchenko E. N. , Korotkova I. P. , Zhilin R.A. , Kozhushko A. A. , Korotkov E. A. , Schelkanov M. Yu.
Published: May 2021

The paper presents the results of a morphometric study of the internal organs of a water deer (Hydropotes inermis Swinhoe 1870) found in the southern part of the Primorsky Krai of Russia. For the first time, the linear and weight parameters were determined, the morphological features of the internal organs of the water deer were described.
Applying remote sensing techniques to monitor green areas in Tashkent Uzbekistan
Authors: Aslanov Ilhomjon , Mukhtorov Uzbekkhon , Mahsudov Rahimjon , Makhmudova Umida , Alimova Saida , Djurayeva Lobar , Ibragimov Oyatillo
Published: May 2021

Land use and land cover (LULC) change are one of the most important signals of regional environmental monitoring and study. Recently, the pull of capital cities has snowballed, an increasing number of people moving to the cities, especially in developing countries. Consequently, as more people arrive at cities, the more pressure will be on land. Land price getting high and constructions try using open green areas. A wide variety of green areas of different sizes will be solve many urban diseases and ecological problems at the same time improve the quality and life of urban residents, as urban green area provides various ecosystem services. The green area includes parks, woodlands, nature reserves and bare lands. With the population increase and expansion of cities, an increasing amount of open area, woodland and bare land has been converted into construction land, buildings due to the increasing demands and residential land. For the accuracy assessment, we applied an automatically supervised classification using the software QGIS 3.18. The reference values were based on ground truth data and visual interpretation.
Studying the effect of potato products in extending the period of potato storage
Authors: Ibragimova Nasiba , Murodova Sayyora , Otanazarov Denis , Khojanazarova Mutabar
Published: May 2021

In this research, the cultivation and storage of potatoes grown in saline soils of Khorezm region at different levels with biopreparations, such as Bist (Pseudomonas putida) and Zamin-M (Bacillus subtilis, Bacillus megaterium and Pseudomonas stutzeri), were studied. In the experimental variants, there was 1.381 mg/kg of vitamin C, followed by 0.112 mg/kg of vitamin B6, 0.089 mg/kg of vitamin PP, 0.481 mg/kg of vitamin B12 and 0.092 mg/kg of vitamin B2 when Zamin-M was applied. Potatoes, which were treated with Zamin-M, contained 0.45% Fructose, 0.87% Glucose, 0.92% Sucrose, 0.04% Maltose, and it was higher than other biopreparations. During storage, the number of diseased nodules was 21.8% when treated with Earth ointment, it was 20% when treated with Bist, and it was 19.8% when treated with Zamin-M. The results showed that Zamin-M was suitable in soil and climate conditions of Khorezm region, especially for storage of potato, and it was found that Zamin-M contained microorganism, which activate the synthesis of phytohormones operating under stress. In comparison, the tested Zamin-M extended the shelf life of potatoes by 25% than the control variants.
Selection of high-yielding varieties and hybrids of pan patty squash, determining their most favorable planting dates
Authors: Durkhodjaev Shavkat , Islamov Sohibjon , Kenjaeva Tulganoy , Tojiboyev Abdulaziz
Published: May 2021

In this article, the results of research on the cultivation of patty pan squash in the climatic conditions of Uzbekistan, Planting for different periods and its growth, development, yield, as well as the impact of weather conditions were presented. Squash is a one-year plant of the family of zucchini, mainly shrub, rarely found in the form of a whip. The results showed that average yield of “White-13” control was 16 tons/ha, and it was 17 tons/ha in “Solnyshko”. Furthermore, “NLO White” and “Umberall” had a high yield compared to the other varieties and hybrids, accounted for 15 tons/ha and 15.1 tons/ha, respectively. The highest average temperature during seed germination was found in 16 august, which was 30.3°C, whereas the lowest average temperature was 18.6°C in 1st April. The results showed that 4 days were required to reach 10% of seed germination in the period April 16 and May 1, however, 10% of seed germination in July 1 and 16th took 6 days. Furthermore, the least days for 75% of seed, germination was observed in the period of May 1, accounted for 8 days, and the rest of the period was the same.
Adaptation of imported goats to the natural climate conditions of Uzbekistan
Authors: Eshmatov I , Eshmatova Sh , Eshmatova M , Davronov B , Donayev Kh , Soatov U , Toshpulatov Ch
Published: May 2021

This research was intended to determine clinical signs and morphological features of blood in the adaptation of imported goat breeds in dairy farming to local climatic conditions, and to establish the formation of new farms in Uzbekistan. The analysis of the clinical condition of the goats during the study showed that changes in weather temperature during the seasons also affected their heart rate. The average heart rate of males in the summer was 63.3-63.5 times, respectively, in the spring - 63.3-63.9 times, in the winter and autumn, it was 63.3-63.4 times. Although there were differences in the respiration of the heifers because of the seasons and their age, they remained at the level of the physiological norm. When the body temperature of young females was observed in the winter, spring, summer and autumn, in the summer, the daytime temperature was 0.4-0.7 °C higher than the morning temperature, and in the evening the air temperature decreased again. The body temperature of young females averaged 39.2 °C in groups in summer, 38.8 °C in spring, 38.9 °C in autumn, and 39.0 °C in winter. Clinical cases of young goats were observed during the study.
Variability of growth, maturation and fecundity of gibel carp (carassius gibelio) in different environments of Uzbekistan
Authors: Kamilov B , Yuldashov M , Soatov U , Nazarov M
Published: May 2021

The goal of present study was to examine gibel carp, Carassius gibelio (Bloch, 1782) growth, maturation, fecundity and ripe eggs size under pond fish culture conditions and conditions of natural water bodies of the River Syrdarya, Uzbekistan. Gibel carp originally came from the River Amur (Russia), it was introduced to Uzbekistan in 1950s. Recently, it is wide spread species in local ichthyofauna. Females matured for the first time at age 2 years: in ponds in 8-10 cm in standard length, in the river in 18-20 cm. The GSI increased to spawning up to 2.9 – 25%. In fish farm ponds absolute fecundity was 1,4 – 51,300 eggs, in the River Syrdarya - 9,2 – 91,400 eggs. Relative fecundity in all populations was 21 – 590 eggs/g in weight of gutted fish. In April, there were two peaks of ripe and yolk eggs size: 1st - 0.89 – 1.69 mm, 2nd – 0.69-0.9 mm.
Experimental technology for harvesting the cotton yield
Authors: Gorlova I , Khalmuradov T
Published: May 2021

This paper presents the results of research on the choice of the type and modes of operation of the experimental brush-slatted working body for collecting the maturated part of the cotton crop. The calculation of the forces acting on the remains of the cotton crop at separation from the cotton stalk is presented. The schemes of the combination of various types of experimental working bodies at increased speeds of the machine are determined. In conclusion, the results of calculating the economic efficiency of harvesting crop residues with brush-slatted working bodies are presented.
Influence of coordination compounds of microelements on cotton productivity in Uzbekistan
Authors: Pirakhunova Farida , Nurmukhammedov Aziz , Karieva Manzura
Published: May 2021

The article presents the data of field experience which show that the increase in the yield of raw cotton when using the coordination compounds of trace elements of cobalt and copper on the optimal nutritional background –N250 P175 K125 increases by 4.5 and 5.8 quintals (q)/ha, respectively, relative to the cotton crop, grown without trace elements, and by 2.8 and 3.2 q/ha in the variants with the use of inorganic salts. Also, the results of research have established that the use of coordination compounds of trace elements has a positive effect on the course of physiological and biochemical processes and the yield of various cotton varieties. It is noted that the increase in yield obtained from the introduction of coordination compounds of trace elements, an average of three years of yield increase was from 12.4 to 17.7%, compared with the control. Coordination compounds Co-31, Co-34 and Cu-12 significantly improve the technological properties of the fiber and increase the oil content of the seeds of the nucleus. Thus, the greatest increase in cotton yield is observed in the variants with the coordination compound of cobalt -5.8 c/ha; the share of the first harvest of raw cotton in the variant is 74.6%, i.e. by 12.3% more than in the control variant, and in the variant with the coordination compound of copper is 4.3 c/ha per hectare compared to the control.
The soft power of India Buddhism for the sustainable development in north East Asia
Authors: Pham Thanh Hang , Nikolaeva Ekaterina
Published: May 2021

In the context globalization today, peaceful cooperation, mutual substainable development, avoiding conflict and confrontation is becoming the main trend in foreign policy of several countries and regions. Therefore, the use of cultural strength as a source of soft power to enhance the national image, power and position is particularly focused in international relations in the 21stcentury. Buddhism is a major religion, which has a deep influence and popularity all over the world. Originating from India, Buddhism has spread to Eastern and Western cultures, it contributes to enriching the soft power of India. The development of Buddhism creates a cultural link between India and the world, helping to expand the influence of India by the power of culture and religious faith. Through Buddhism, people know and admire India as an ancient culture of the East. The article analyzes the widespread pervasiveness of Indian Buddhism as a source of Indian soft power in three countries in Northeast Asia - Japan, South Korea, and China as a concrete example for this.
Improve national competitiveness capacity under Vietnamese law
Authors: Duong Duc Chinh
Published: May 2021

Competition is characteristic of the market economy when the supply and demand of goods and commodity prices are the decisive factors. Competition of enterprises has a direct effect on the national competition. When enterprises develop sustainably, they will promote the development of social production, increase in social labor productivity and improve people’s lives. Over the past 30 years of renovation, the competitiveness capacity of Vietnam has changed and improved gradually, but compared to the world and the ASEAN region, it remains low. Good national competition will ensure to improve the business environment, increase competitiveness, to adapt to the new production in the 4.0 industrial revolution, helping the Vietnamese economy to develop stably firmly in a competitive environment.In the framework of this article, the author focuses on the following issues: (i) Some general theoretical issues about competition and national competitiveness capacity; (ii) Some legal issues in the current competition law in 2018; (iii) Some solutions to improve national competitiveness capacity.
Environmental protection policies at craft villages in Hanoi in the context of sustainable development
Authors: Nguyen Thanh Ly , Nguyen Thi Bich Hanh , Nguyen Thi Hoa , Le Vien Lan Huong
Published: May 2021

Craft village is one of the distinct features of rural areas and an important factor in industrial and secondary manufacturing zones and subzones in Vietnam. Craft village, in nature, is a guild within a village who earn their living through non-agricultural activities. Craft village has been long preserved and developed with various characteristics including production subject (artisan); produce (featured by sophistication and arts); natural condition and specific technological process. In the context of industrialization and modernization being interwined with sustainable development, this article provides an insight into environmental protection policies applied to craft villages in Hanoi in order to understand the situation of executing environmental protection policies for craft villages in Hanoi; to point out challenges in formulating and implementing the policies; to therefore propose measures to develop the policies and enhance the implementation effectiveness.