bluuebunny/crossref_metadata_2025 huggingface dataset:
Polytopic carriers for platinum ions: from digalloyl depside to tannic acid
Authors: Fogagnolo Marco , Bergamini Paola , Marchesi Elena , Marvelli Lorenza , Gambari Roberto , Lampronti Ilaria
Published: June 2020

Multinuclear platinum complexes of the natural antioxidant tannic acid and its aglycone part methyl digallate can be prepared via an environmentally friendly, solvent-free process exploiting the convenient precursor [PtCO3(Me2SO-S)2].
Influence of the adsorption of toxic agents on the optical and electronic properties of B12N12 fullerene in the presence and absence of an external electric field
Authors: Soltani Alireza , Ramezanitaghartapeh Mohammad , Javan Masoud Bezi , Baei Mohammad T. , Lup Andrew Ng Kay , Mahon Peter J. , Aghaei Mehrdad
Published: June 2020

The interaction energies and optoelectronic properties of sarin (SF) and chlorosarin (SC) on the B12N12 with and without the presence of an electric field have been studied using density functional theory (DFT) calculations.
A mitochondria-targeting ratiometric fluorescent probe for the detection of sulfur dioxide in living cells
Authors: Lu Yaru , Dong Baoli , Song Wenhui , Sun Yaru , Mehmood Abdul Hadi , Lin Weiying
Published: June 2020

A mitochondria-targeting ratiometric fluorescent probe was developed for the detection of sulfur dioxide in living cells.
Characterizing electronic and atomic structures for amorphous and molecular metal oxide catalysts at functional interfaces by combining soft X-ray spectroscopy and high-energy X-ray scattering
Authors: Tiede David M. , Kwon Gihan , He Xiang , Mulfort Karen L. , Martinson Alex B. F.
Published: June 2020

Combined analyses by operando soft X-ray spectroscopy and high-energy X-ray scattering offers opportunities to unravel electronic and atomic structures that underpin interfacial catalysis.
A ZIF-90 nanoplatform loaded with an enzyme-responsive organic small-molecule probe for imaging the hypoxia status of tumor cells
Authors: Zou Ruifen , Gong Qiuyu , Shi Zhenzhi , Zheng Jianping , Xing Jie , Liu Chuang , Jiang Zhenqi , Wu Aiguo
Published: June 2020

A new organic probe and a novel imaging system developed through loading the organic probe into ZIF-90@PEG were successfully synthesized for off–on fluorescence imaging via enzyme response to nitroreductase in vitro and in vivo.
Binary nonmetal S and P-co-doping into mesoporous PtPd nanocages boosts oxygen reduction electrocatalysis
Authors: Yin Shuli , Xu You , Liu Songliang , Yu Hongjie , Wang Ziqiang , Li Xiaonian , Wang Liang , Wang Hongjing
Published: June 2020

S and P-co-doped mesoporous PtPd nanocages were synthesized and they demonstrated enhanced electrocatalytic performance for the oxygen reduction reaction.
Design considerations for lithium–sulfur batteries: mass transport of lithium polysulfides
Authors: Kim Seong-Jun , Jeoun Yunseo , Park Jungjin , Yu Seung-Ho , Sung Yung-Eun
Published: June 2020

The mass transport of soluble LiPSs is a significant important factor determining the performance of sulfur cathode. The effect of mass transport was clearly elucidated.
Tuning trion binding energy and oscillator strength in a laterally finite 2D system: CdSe nanoplatelets as a model system for trion properties
Authors: Ayari Sabrine , Quick Michael T. , Owschimikow Nina , Christodoulou Sotirios , Bertrand Guillaume H. V. , Artemyev Mikhail , Moreels Iwan , Woggon Ulrike , Jaziri Sihem , Achtstein Alexander W.
Published: June 2020

We show that CdSe nanoplatelets are a model system to investigate the tunability of trions and excitons in laterally finite 2D semiconductors.
Directional Diels–Alder cycloadditions of isoelectronic graphene and hexagonal boron nitride in oriented external electric fields: reaction axis rule vs. polarization axis rule
Authors: Wang Wei-Wei , Wang Chang-Wei , Zheng Jia-Jia , Shang Fu-Lin , Dang Jing-Shuang , Zhao Xiang
Published: June 2020

We introduced the distinct catalytic mechanisms of the oriented-external-electric-fields-promoted DA reactions of graphene and hexagonal boron nitride. The different responses to fields can be elucidated from the different charge transfer characters.
Monophenolase and catecholase activity ofAspergillus oryzaecatechol oxidase: insights from hybrid QM/MM calculations
Authors: Jiang Hao , Lai Wenzhen
Published: June 2020

Monophenolase and diphenolase activities of the [Cu2O2]2+active site ofAspergillus oryzaecatechol oxidase are revealed by hybrid QM/MM calculations.
Selective functionalization of 6-amino-6-methyl-1,4-perhydrodiazepine for the synthesis of a library of polydentate chelators
Authors: Martinelli Jonathan , Remotti Davide , Tei Lorenzo
Published: June 2020

AMPED-based [un]symmetrical ligands having different numbers and types of donor atoms to bind metal ions were synthesized for diagnostic applications.
Isocoumarin formation by heterologous gene expression and modification by host enzymes
Authors: Xiang Pan , Ludwig-Radtke Lena , Yin Wen-Bing , Li Shu-Ming
Published: June 2020

The polyketide synthase product was converted to its methylated and hydroxylated derivatives by host endogenous enzymes.
Copper(i)-catalyzed intermolecular cyanoarylation of alkenes: convenient access to α-alkylated arylacetonitriles
Authors: Chen Xin-Jie , Gui Qing-Wen , Yi Rongnan , Yu Xianyong , Wu Zhi-Lin , Huang Ying , Cao Zhong , He Wei-Min
Published: June 2020

An efficient method for the synthesis of α-alkylated arylacetonitriles through Cu(i)-catalyzed cyanoarylation of alkenes with diaryliodonium salts and tetra-butylammonium cyanide was established.
An electrochemically controlled supramolecular zip tie based on host–guest chemistry of CB[8]
Authors: Neira Iago , Domarco Olaya , Barriada Jose L. , Franchi Paola , Lucarini Marco , García Marcos D. , Peinador Carlos
Published: June 2020

A stimuli-responsive supramolecular assembly based on a bipyridinium thread and CB[8] behaves like a zip tie relaxing the chain as a consequence of the insertion of both radical cation moieties within the CB[8] macrocycle.
[1,2]-Rearrangement of iminium salts provides access to heterocycles with adamantane scaffold
Authors: Zonker Benjamin , Duman Ediz , Hausmann Heike , Becker Jonathan , Hrdina Radim
Published: June 2020

A Wagner–Meerwein rearrangement of iminium triflate salts followed by a Friedel–Crafts reaction enables the synthesis of aza-heterocycles and amines with adamantane scaffold.
Small molecule-mediated co-assembly of amyloid-β oligomers reduces neurotoxicity through promoting non-fibrillar aggregation
Authors: Liu Hao , Qian Chengyuan , Yang Tao , Wang Yanqing , Luo Jian , Zhang Changli , Wang Xiaohui , Wang Xiaoyong , Guo Zijian
Published: June 2020

A rational design of pincer-like scaffold-based small molecule with blood-brain barrier permeability that can specifically co-assemble with low molecular weight Aβ oligomers to form non-fibrillar, degradable, non-toxic co-aggregates.
Direct catalytic asymmetric and anti-selective vinylogous addition of butenolides to chromones
Authors: Cui Jin , Kumagai Naoya , Watanabe Takumi , Shibasaki Masakatsu
Published: June 2020

An anti-selective catalytic asymmetric Michael-type vinylogous addition of β,γ-butenolides to chromones was developed.
Synthesis of oxalamides by acceptorless dehydrogenative coupling of ethylene glycol and amines and the reverse hydrogenation catalyzed by ruthenium
Authors: Zou You-Quan , Zhou Quan-Quan , Diskin-Posner Yael , Ben-David Yehoshoa , Milstein David
Published: June 2020

Ruthenium catalyzed acceptorless dehydrogenative coupling of ethylene glycol and amines to oxalamides is reported. The reverse hydrogenation reaction is also accomplished.
Enhancing the biocompatibility of rhodamine fluorescent probes by a neighbouring group effect
Authors: Bucevičius Jonas , Kostiuk Georgij , Gerasimaitė Rūta , Gilat Tanja , Lukinavičius Gražvydas
Published: June 2020

Excellent live-cell staining and nanoscopy imaging with rhodamine 4′-isomer probes boosted by a neighboring group effect.
Cobalt-catalyzed aminocarbonylation of (hetero)aryl halides promoted by visible light
Authors: Veatch Alexander M. , Alexanian Erik J.
Published: June 2020

An aminocarbonylation of (hetero)aryl halides using a simple cobalt catalyst under visible light irradiation is presented.
Gold nanorod impact on mechanical properties of stretchable hydrogels
Authors: Turner Jacob G. , Og Jun Hyup , Murphy Catherine J.
Published: June 2020

Double-network hydrogels have attracted much attention because of their superior mechanical properties, which are more similar to rubbers and soft tissues than classic hydrogels.
From tanghulu-like to cattail-like SiC nanowire architectures: interfacial design of nanocellulose composites toward high thermal conductivity
Authors: Xue Bai , Yang Shengdu , Sun Xin , Xie Lan , Qin Shuhao , Zheng Qiang
Published: June 2020

Cattail-like H–MoS2–SiCNWs have great superiority as the thermal conductive filler for manufacturing fascinating thermal conductive CNF hybrid films.
Correction: A highly selective dual-therapeutic nanosystem for simultaneous anticancer and antiangiogenesis therapy
Authors: He Lizhen , Huang Yanyu , Chang Yanzhou , You Yuanyuan , Hu Hao , Leong Kam W. , Chen Tianfeng
Published: June 2020

Correction for ‘A highly selective dual-therapeutic nanosystem for simultaneous anticancer and antiangiogenesis therapy’ by Lizhen He et al., J. Mater. Chem. B, 2017, 5, 8228–8237, DOI: 10.1039/C7TB02163A.
miR-122/SIRT1 axis regulates chondrocyte extracellular matrix degradation in osteoarthritis
Authors: Bai Yinwei , Chen Kun , Zhan Jianfeng , Wu Mingxin
Published: June 2020

Background/Aims: MicroRNAs (miRNAs) are involved in the pathogenesis of osteoarthritis (OA). The present study aimed to investigate the potential function of miR-122 in the development of OA and its potential molecular mechanisms. Methods: The expression of miR-122, silent information regulator 1 (SIRT1), collagen II, aggrecan, matrix metalloproteinase (MMP) 13 (MMP13) and ADAMTS4 in OA cartilage was detected by RT-qPCR. Target gene prediction and screening, luciferase reporter assay were used to verify downstream target genes of miR-122. Results: Compared with osteonecrosis, the expression of miR-122 was significantly increased in OA cartilage, while the expression of SIRT1 was significantly decreased. Overexpression of miR-122 increased the expression of extracellular matrix (ECM) catabolic factors, for example disintegrins, MMPs and metalloproteinases with platelet reaction protein motifs, and inhibited the expression of synthetic metabolic genes such as collagen II and aggregating proteoglycan. Inhibition of miR-122 expression had the opposite effect. Furthermore, SIRT1 was identified as a direct target of miR-122. SIRT1 was significantly inhibited by miR-122 overexpression. Knockdown of SIRT1 reversed the degradation of chondrocyte ECM by miR-122 inhibitors. Conclusion: The miR-122/SIRT1 axis can regulate the degradation of ECM in OA, thus providing new insights into the treatment of OA.
“What's Going on With My Ears?”: Some Reflections on Managing Uncertainty in the Audiology Consultation
Authors: Watermeyer Jennifer , Kanji Amisha , Brom Liora
Published: June 2020

Purpose

Feedback sessions after audiology consultations predominantly involve information counseling or patient education, where the patient is informed about their hearing status and possible management options. Effective communication is vital to ensure that information about the hearing impairment, recommendations, and/or management options is appropriately provided and understood by patients and that patient needs and expectations from the session are met. This research note reports on an exploratory study that sought to describe communication in follow-up audiological consultations within a context where ototoxicity monitoring is routine practice.

Method

Six interactions between patients and audiologists were video-recorded at an in-patient treatment facility for drug-resistant tuberculosis in Johannesburg and analyzed using a sociolinguistic approach. Semistructured interviews were also conducted with participants and analyzed using content analysis.

Results

These interactions differed considerably to other audiology consultations we have analyzed in terms of aspects such as the length of the interaction and the type of information given to patients. We observed a substantial amount of mitigative, vague, and exaggerated language in these interactions.

Conclusions

In this research note, we offer some reflections on this data set using a lens of uncertainty management theory and explore factors within the broader context that may contribute to the interactional features observed in the current study. Overall findings suggest the need for clinicians to be trained to embrace and address uncertainty rather than avoid it within challenging clinical encounters.
Subjective Hearing Difficulty and Fall Risk
Authors: Criter Robin E. , Gustavson Megan
Published: June 2020

Purpose

Hearing loss is a risk factor for falls. The purpose of this study was to investigate the relation between subjective hearing difficulty and risk of falls.

Method

Community-dwelling older adults, aged 60 years and older, completed a case history; three questionnaires, including the Hearing Handicap Inventory for the Elderly (HHIE), Dizziness Handicap Inventory (DHI), Activities-Specific Balance Confidence Scale (ABC); and one functional balance measure, the Timed Up and Go (TUG) test. Pearson and Spearman correlations were calculated, and average scores were plotted according to group and HHIE score category for DHI, ABC, TUG, the number of medications, and the number of recent falls.

Results

Seventy-four participants were included in this analysis: 28 nonaudiology patients, 18 audiology patients with hearing aids, and 28 audiology patients without hearing aids. Significant positive correlations were noted between HHIE and DHI scores for audiology patients without hearing aids and between HHIE score and number of recent falls for audiology patients with hearing aids. When average scores were plotted for DHI, ABC, TUG, the number of medications, and the number of recent falls according to group and category, there were clear trends toward increased fall risk as HHIE score categories increased (i.e., mild to moderate to severe) based on previously used criteria.

Conclusions

Overall, a trend was noticed such that, for increasing HHIE score categories, fall risk increased. Significant correlations existed between HHIE score and some of the measures used to indicate fall risk (i.e., DHI score, number of recent falls). Future fall risk research should investigate subjective hearing difficulty as a risk factor, as well as pure-tone audiometric thresholds.
Social Communication Following Adult Traumatic Brain Injury: A Scoping Review of Theoretical Models
Authors:   Academy of Neurologic Communication Disorders Traumatic Brain Injury Writing Committee, Byom Lindsey , O'Neil-Pirozzi Therese M. , Lemoncello Rik , MacDonald Sheila , Meulenbroek Peter , Ness Bryan , Sohlberg McKay Moore
Published: June 2020

Purpose

Social communication is the set of abilities that allows individuals to achieve relevant social goals across contexts. Speech-language pathology evaluation and treatment of traumatic brain injury (TBI)-related social communication problems should be informed by evidence-supported theories of social communication. The primary purpose of this article is to summarize the results of a scoping review of theoretical models that speech-language pathologists may apply to the evaluation and treatment of social communication problems of adults with TBI.

Method

A scoping review was conducted of PubMed, PsycINFO, and Embase for sources published in English between 1989 and 2020 that described human social communication and participation. Resulting sources were systematically examined for social communication models.

Results

Nine theoretical models were identified that speech-language pathologists may apply to their assessment and treatment of social communication abilities of adults with TBI. Identified models were categorized thematically into one of three classes: cognitive models, social competence models, and pragmatic models. Using a framework developed for the purposes of this article, each identified model was evaluated, and one exemplar model in each class is described in depth.

Conclusions

Social communication problems in adults post-TBI are common. The existence of multiple models empowers speech-language pathologists to select individual-focused assessment and treatment approaches to maximize intervention outcomes.
Noise and a Speaker's Impaired Voice Quality Disrupt Spoken Language Processing in School-Aged Children: Evidence From Performance and Response Time Measures
Authors: Schiller Isabel S. , Morsomme Dominique , Kob Malte , Remacle Angélique
Published: June 2020

Purpose

Our aim was to investigate isolated and combined effects of speech-shaped noise (SSN) and a speaker's impaired voice quality on spoken language processing in first-grade children.

Method

In individual examinations, 53 typically developing children aged 5–6 years performed a speech perception task (phoneme discrimination) and a listening comprehension task (sentence–picture matching). Speech stimuli were randomly presented in a 2 × 2 factorial design with the factors
noise
(no added noise vs. SSN at 0- dB SNR) and
voice quality
(normal voice vs. impaired voice). Outcome measures were task performance and response time (RT).

Results

SSN and impaired voice quality significantly lowered children's performance and increased RTs in the speech perception task, particularly when combined. Regarding listening comprehension, a significant interaction between noise and voice quality indicated that children's performance was hindered by SSN when the speaker's voice was impaired but not when it was normal. RTs in this task were unaffected by noise or voice quality.

Conclusions

Results suggest that speech signal degradations caused by a speaker's impaired voice and background noise generate more processing errors and increased listening effort in young school-aged children. This finding is vital for classroom listening and highlights the importance of ensuring teachers' vocal health and adequate room acoustics.
Projection onto the convex sets model based on non‐downsampling contourlet transform and high‐frequency iteration
Authors: Ma Zijie , Ren Guoqiang
Published: June 2020

Obtaining high‐resolution images is one of the critical issues in many areas. The super‐resolution (SR) algorithm is a method of obtaining a high‐resolution image from low‐resolution images. The projection onto the convex sets (POCS) iteration method is an essential spatial multi‐image SR algorithm. In addition to generating Gibbs artefacts, the traditional POCS algorithm has some restrictions on the image source, such as the signal‐to‐noise ratio and the resolution of the reference frame. In order to remove the limitation of image source, eliminate artefact, and get more edge information from iteration. This Letter proposes a new POCS iterative model. This Letter uses the high‐frequency (HF) image obtained after a non‐downsampling contourlet transform as the iteration object. It uses the unique attributes of the HF image to establish a new constrained convex set to construct the iterative formula. In order to make the iteration effect more apparent, this Letter has Laplace enhancement to the reference frame selected by principal component analysis. The experimental results show that the results obtained by the proposed algorithm are satisfactory in both subjective and objective evaluations.
Distributed event‐triggered algorithm for optimal resource allocation of second‐order multi‐agent systems
Authors: Deng Zhenhua , Wang Lei
Published: June 2020

In this work, the authors study the resource allocation problems of second‐order multi‐agent systems, where each agent is associated with a local cost function and the decisions of agents are constrained by network resource constraints. To seek the optimal resource allocation with low communication costs, a distributed algorithm with event‐triggered schemes is proposed. With the help of Lyapunov stability theory and convex analysis, the authors analyse the convergence of the algorithm and prove the event‐triggered schemes are free of Zeno behaviour. Under the proposed algorithm, the second‐order agents exponentially converge to the exact optimal decision of the resource allocation problem, and the burden of communication is reduced effectively. Finally, a simulation of the economic dispatch problem is given to illustrate the effectiveness of the authors' results.
Kalman filter with recursive covariance estimation for protection against system uncertainty
Authors: Xiao Xuan , Shen Kai , Liang Yuan , Liu Tingxin
Published: June 2020

This study is intended to design a novel adaptive Kalman filter (KF) that can solve the filtering problem with unknown noise statistics. The proposed method named as measurement sequence adaptive KF (MSAKF) can adaptively estimate the unknown parameters of noise statistics via the information from measurement sequences. In order to enhance the computational efficiency, algorithm optimisation via recursive covariance estimation is introduced. In addition, stability analysis of the MSAKF is also made under some given conditions. The estimation process is proved to be stable and its filtering results converge to the ones of the ideal KF with exact system parameters. To demonstrate the effectiveness of the MSAKF algorithm, the simulation based on a navigation signal‐tracking model is presented, and the results show that the MSAKF algorithm possesses low calculation complexity, fast convergence, high‐precision and adaptability in complex application environments.
Model‐free adaptive control method for a class of unknown MIMO systems with measurement noise and application to quadrotor aircraft
Authors: Liu Shida , Hou Zhongsheng , Zhang Xin , Ji Honghai
Published: June 2020

In this work, a novel robust model‐free adaptive control (Ro‐MFAC) algorithm for a class of unknown multiple‐input multiple‐output (MIMO) systems with measurement noise is presented. The proposed algorithm, designing by a dynamic linearisation data model with the concept of the pseudo‐Jacobian matrix and an adaptive decreasing factor, is a pure a data‐driven control method, and only the input–output data are involved for the control system design. The introduction of the adaptive decreasing factor is to attenuate the noise effect on the performance for improving the robustness of the algorithm. The stability of the Ro‐MFAC proposed algorithm is proven by rigorous mathematical theory, and the effectiveness of the Ro‐MFAC is verified by a series of numerical simulations. Furthermore, the Ro‐MFAC is applied to an attitude adjustment problem of a practical quadrotor aircraft for demonstrating the applicability of the proposed approach.
Semi‐global containment of discrete‐time high‐order multi‐agent systems with input saturation via intermittent control
Authors: Xu Chengjie , Li Bofan , Yang Ling
Published: June 2020

This study investigates the intermittent semi‐global containment of discrete‐time high‐order multi‐agent systems with input saturation. The intermittent semi‐global containment protocol is proposed based on discrete‐time low‐gain state feedback control. Some containment conditions are obtained, and the convergence analysis is given. It is turned out that all the followers beginning from a bounded initial set will asymptotically enter into the convex hull spanned by the leaders under the proposed protocol. Moveover, intermittent semi‐global leader‐following consensus with input saturation is considered as a special case, and the corresponding result is introduced. Finally, numerical simulations are presented to illustrate the theoretical findings.
What makes lady beetles effective natural enemies in preventative biological control?
Authors: Belyakova Natalia , Polikarpova Yulia
Published: June 2020

Based on the reconsideration of traditional criteria for assessing the efficacy of natural enemies, the screening of coccinellids for preventative control of aphids was conducted. The result suggests that there is no causation between the female size (weight) and the reproductive potential of the tested species. Considering that size does not matter in preventative releases, it is more cost-effective to produce small lady beetles. Essential and non-essential ecological knowledge for the efficacy assessment is discussed.
The biological activity of subspecies Trichoderma harzianum against Fusarium oxysporum, the causative agent of fusarium wilt cucumber in vitro
Authors: Pavlovskaya Ninel , Gneusheva Irina , Solokhina Irina , Ageeva Natalya
Published: June 2020

The study of the effect of the strains of the fungus Trichoderma: Trichoderma atrobrunneum VKPM F-1434, Trichoderma harzianum 5/14, Trichoderma Lixii T4/14 on the number of micromycetes populations of the pathogenic fungi Fusarium oxysporum isolate B/14, Fusarium oxysporum isolate MOS509, Fysarium oxysporum isolate IMI58289 in vitro. It was found that the Trichoderma atrobrunneum fungus strain VKPM F-1434 showed the highest degree of inhibition on 10 days of cultivation with phytopathogenic microorganisms, which was 100 %. The study revealed that all Trichoderma species are capable of producing lytic enzymes. Trichoderma atrobrunneum strain VKPM F-1434 exhibits strong lipase and chitinase activity and average proteinase activity. In addition, Trichoderma atrobrunneum strain VKPM F-1434 has a growth-promoting ability, which was reflected in the germination of seeds of cucumber “German F1”. The maximum values of indicators of germination energy were noted – 98.4 % and germination – 100 %.
The causative agent of downy mildew Peronospora brassicae Gaeum. f. brassicae (Gaeum.) on winter false flax (Camelina sativa (L.) Crantz.): the search for a source of disease resistance in the conditions of the Krasnodar region
Authors: Serdyuk Oksana , Trubina Victoria , Gorlova Lyudmila
Published: June 2020

In recent years, in the conditions of the central zone of the Krasnodar region, downy mildew has become the most dangerous disease of winter false flax that affects the crop yield. Either the infected plants do not develop reproductive organs or these organs are undeveloped. The development of varieties resistant to infection by the disease causative agent allows efficient reducing the seed yield loss of winter false flax due to downy mildew without the use of chemical products. In 2015-2019, we conducted an assessment of the breeding material (528 cultivar samples) of winter false flax for resistance to downy mildew affection on a natural infection background. We determined that the causative agent of the disease is Peronospora brassicae Gaeum. f. brassicae (Gaeum.) Dzhan. We divided all cultivar samples into groups according to their resistance to the disease: immune, resistant, weakly resistant, weakly susceptible, susceptible. As a result of research, we selected 5 breeding samples (## 724, 726, 728, 730, 738) that were immune to downy mildew in the course of several years, with yield exceeding the standard variety Karat by 0.22-0.38 t/ha, and with oil content exceeding the standard by 0.2-0.5 %. We proposed to use the selected cultivar samples in the breeding process with the aim of developing new false flax varieties resistant to downy mildew.
Fenoxycarb effect on quality, productive capacity and food safety of Kabardinskaya rannyaya cultivar of the plum
Authors: Podgornaya Marina , Vasilchenko Anfisa , Didenko Nadezhda
Published: June 2020

Plum moth Grapholita funebrana Tr. is a dominating pest in entomological complex of plum production in the south of Russia. The yield`s loss caused by it can reach 60-70 %. In the modern plant protection systems Insegar, VDG (250 g/kg fenoxycarb) is most commonly used for control of the pest`s number. Its use helps to save up to 98.5-99.8 % of the fruit. The aim of the research was to study fenoxycarb`s effect on quality, productive capacity and food safety of Kabardinskaya rannyaya cultivar of the plum. It was found that double use of the insecticide doesn`t lead to significant difference in the content of organic acids and dry substances. However, it encourages the increase of the leaf`s surface by 4-10 sm2 and annual additional growth of the plant by 6-52 sm in comparison to the control. It was established that fenoxycarb is completely decomposed at the end of the “Waiting period”.
Biological protection of spring wheat from root rot in the forest-steppe zone of Eastern Siberia
Authors: Razina Alfia , Dyatlova Olga
Published: June 2020

We present the results of the trial of the biological drug BisolbiSan (Bacillus subtillis strain H-13, isolated by the All-Russian Research Institute of Agricultural Microbiology) for treatment of spring wheat seeds in comparison with the widely popular chemical fungicides Maxim and Maxim Plus in the forest-steppe zone of Eastern Siberia in 2016–2018. BisolbiSan contributed to a decrease in total seed contamination by 2.4 times compared to control, which was practically at the level of the chemical fungicide Maxim. Maxim and Maxim Plus oppressed the growth of the sprout and the main germ line, while BisolbiSan stimulated the growth and development of the root system, and did not inhibit the growth of the sprout. The prevalence of root rot in the variant with BisolbiSan was lower compared to control by 54 %, effectiveness of which was not significantly inferior to that of chemical protectants. In comparison with control variant, BisolbiSan increased vitreous content of grain by 16.9 %, the content of crude gluten by 3.9 %, contributed to obtaining a statistically reliable increase in the yield of 0.38 tons per hectare, which did not differ significantly from the increase in the variant with chemical protectants. In our experiment, the payback of 1 ruble of costs when treating seeds with BisolbiSan was 1.7, which is 0.5 and 0.2 rubles higher compared to Maxim and Maxim Plus, respectively. The profitability of the yield increase using BisolbiSan was 70.9 %, which is 54.5 % and 20.6 % more than when using Maxim and Maxim Plus, respectively.
Phenotypic plasticity of an invasive weedAmbrosia artemisiifoliaL. in agrobiocenoses of the South of Russia
Authors: Esipenko Leonid , Podvarko Aleksandr , Savva Anatoliy
Published: June 2020

Invasive weeds are characterized by high phenotypic plasticity, which allows them to adapt to new climatic conditions due to variable phenotypes that have arisen in the historical time scale under the control of natural selection. Colonization of such plants takes place locally in accessible anthropogenic cenoses. In the South of Russia the most typical invasive plant isAmbrosia artemosiifoliaL. We We examined the discrete variation by vegetative feature — shoot length according to 12 genotypes of ragweed in agrocenoses of Krasnodar Krai.
Using CRISPR/Cas9 for generation the cd209 knockout is a way to get cattle breeds resistant to the Bovine leukemia virus (BLV)
Authors: Deykin Alexey V. , Kubekina Marina V. , Silaeva Yulia Yu. , Krivonogova Anna S. , Isaeva Albina G.
Published: June 2020

Bovine leukemia virus (BLV) causes enzootic leukemia - a chronic infectious disease occurring against the background of embedding the virus in the genome of B-lymphocytes and leading to malignization, invasion of tumor cells in organs and the formation of tumors. The disease is common in the United States, Japan, and Asia. In Russia, up to 30% is infected with BLV. Moreover, there is evidence of the presence of antibodies to the BLV virus in some groups of people, and the relationship between BLV and cancer in humans is widely discussed. All this indicates an urgent need to study BLV and create breeds resistant to it. The development of approaches to solving this problem is complicated by the fact that the receptor through which the infection is carried out is still unknown. Recently, it has been suggested that the virus penetrates the animal's lymphocytes using the CD209 molecule. In this paper, we propose a genome editing system based on CRISPR/Cas9 to get a knockout for this gene. We assume that animals obtained using the presented genome editing system will be resistant to infection with the bovine leukemia virus.
Prospects of the Russian-Mongolian interaction in the innovative sector of agriculture
Authors: Filin Sergey , Yakushev Aleksey , Berdikulov Maxat , Velikorossov Vladimir , Chaikovsky Aleksey
Published: June 2020

The article raises an relevant topic - the direction of Russian-Mongolian interaction in the agricultural innovation sector. The purpose of the article is to offer recommendations on the implementation of a set of innovatively oriented measures in the field of agriculture in Mongolia using Russian technologies. The novelty of the article is the identifying trends in the development of innovative interaction of agricultural production in Russia and Mongolia based on Russian technologies. The analysis of changes in the level of innovation of Mongolia and the development of its agriculture is carried out, the main problems that inhibit development are identified. It is concluded that the mutual desire to increase the effectiveness of cooperation in science, innovation and education should provide a positive effect on the development of Mongolian agricultural production and industries that process agricultural raw materials, and accelerate the economic growth of agricultural production.
Research on the content of pathogenic micromycetes and benz(a)pyrene in soils of urbanized territories of Perm Krai
Authors: Voronina Emma , Balandina Alevtina , Mazunina Tatiana , Dubrovina Svetlana
Published: June 2020

The content of phytopathogenic fungi and the concentration of benz(a)pyrene in soil samples located near the oil refinery has been investigated. It has been found that in the vast majority of soil samples pathogenic micromicetes are represented by genera Fusarium, Rhizoctonia, Phytophthora, which have a negative effect on crops growth. The highest content of pathogenic micromycetes, amounting to10 CFU per 1 g of soil, was found in soil samples located directly on oil spill territory. It has been found that in an overwhelming number of soil samples, the concentration of benz (a) pyrene, which belongs to organic substances of grade I hazard, exceeds the MPC. The results of the study are consistent with earlier evidence that concentrations of pathogenic micromycetes and benz (a) pyrene are higher in anthropogenic-afected soils. This is due to the negative effect of oil hydrocarbons and benz (a) pyrene on useful soil microflora, and further settlement of the released ecological niche by pathogens. The company is given recommendations on the use of soil for cultivating technical crops or its exclusion from agricultural use.
Field interpretation of earth remote sensing data and ground field surveys in the Republic of Kazakhstan, Kostanay region in the pre-sowing season
Authors: Ismuratov Sabit , Dukeyeva Aida , Tulkubayeva Saniya Abiltaevna , Tulayev Yuriy Valerievich
Published: June 2020

The aim of the research is to carry out field and office work on conducting a sub-satellite survey on test sites of the Kostanay region of the Republic of Kazakhstan. Grain-sowing districts of the Kostanay region were selected as the objects of examination: Karabalyk, Fedorov, Mendykara, Uzunkol, Sarykol, Altynsarin, Kostanay, Denisov, Karasu, Taranov, Zhitikara, Auliekol, Kamysty, Naurzum. The determination of the reserves of productive soil moisture in the 0-100 cm layer by control points (100 points) carried out in the pre-sowing season of 2019 showed that the soils are characterized by satisfactory and, for the most part, insufficient moisture. The fields fixed in the coordinate system were evaluated by five indicators - pH, humus, nitrate nitrogen (N-NO3), mobile phosphorus (P2O5), and exchange potassium (K2O). Most of the soils examined had a soil solution reaction that was neutral or close to neutral. In terms of humus content, soils of the Karabalyk, Fedorov, Uzunkol and Sarykol districts had an average degree of availability, which exceeded the indicators of other districts of the Kostanai region and depended on the type of soil. The content of the basic elements of plant nutrition - nitrogen and phosphorus - varied within various limits, and, to a large extent, was determined by the previous culture, tillage, fertilizer application, and climatic conditions of the year. The level of exchangeable potassium in the soils of the examined districts of the Kostanay region was characterized as elevated or very high.
Soil organic carbon sequestration according to two Geoset long-term field experiments in the Moscow region
Authors: Prokopyeva K.O. , Romanenkov V.A. , Sidorenkova N.K. , Krasilnikov P.V.
Published: June 2020

The feasibility of implementing the "4 ppm" initiative, which assumes an annual increase in organic carbon stocks of agricultural soils in the layer 0-40 cm, was estimated with the dynamic carbon model RothC in two long-term DAOS experiments in the Moscow region, conducted in neighbouring fields for 74 and 76 years. Treatments included absolute control, application of organic, mineral, organic and mineral fertilizers at increasing rates. One of the experiments showed the growth of C stocks 12‰ in the layer 0-20 cm in the first 20 years in treatments with mineral fertilization, and 17‰ with the additional application of manure in an average annual rate of 10 Mg·ha-1. The accumulation of C allowed increasing its stock by 18-25%. Still, with the subsequent decline in crop rotation productivity, there was a loss of part of the previously accumulated C. In another experiment, at close values of annual C input, there was a loss of initial C stock due to the history of land use. The crop rotation adjustment provided a 3-8 ‰ increase of soil C in the 0-20 cm layer in the first 20 years after introduction but was insufficient to match the "4 ppm" initiative. In the long term, the organic fertilizer system had an advantage over the mineral one in ensuring the stability of organic C stocks in the arable layer. However, the management of C sequestration was complicated in the non-equilibrium state of the carbon system "plant residues-organic fertilizer-soil".
Using GIS technology for identification of agricultural land with an increased risk of erosion
Authors: Buryak Zhanna , Marinina Olga
Published: June 2020

The article discusses the results of spatial analysis of agricultural land in geographic information systems for automated identification of arable land with high risk of soil water erosion. For the Belgorod Region, which has a high soil and climatic potential and is one of the leading agrarian regions of Russia, a spatial model for potential clean fallow-based rainfall erosion has been constructed. For calculations, the RUSLE equation was used, and the input data were obtained from a digital elevation model with 30 m resolution, 1:200,000 soil map and interpolated data on rainfall. As a result, we have identified the areas with very strong potential erosion (more than 20 t/ha per year) and generated a regional geodatabase. The obtained results can be used to plan measures to change the structure of crop rotation on the slopes and environmental renaturation of degraded arable land.
Hydrodynamics of formation of a microdispersed spray by the cup rotary atomizer
Authors: Sidorenko Ivan , Dogoda Peter , Mashkov Alexander
Published: June 2020

This article is devoted to the study of the movement of a single drop inside an air-liquid jet formed by a cup atomizer. The relevance of the research topic is proved. The problem, which has been identified, is about using modern fan sprayers for chemical protection of agricultural crops, in particular, orchards and vineyards. As for mechanical spraying, the process of movement of the droplet inside the torch, the trajectory of droplet flight, as well as the dependence of these indicators on the parameters of the rotary atomizers are currently very little studied. Therefore, this article considers the laws describing the movement of one droplet on the surface of the rotating working element and one droplet flight in atmospheric air after escape from the surface of the rotary atomizer’s cup. Research results are presented as the equations describing the dependence of the torch boundaries on the parameters of the rotary cup atomizer.
The use of machine learning methods in the diagnosis of diseases of crops
Authors: Korchagin Sergey , Serdechny Denis , Kim Roman , Terin Denis , Bey Mihail
Published: June 2020

The approach to solving the problems of diagnosis and prognosis of diseases of agricultural crops using machine learning methods is described. To solve the problem of forecasting diseases of agricultural crops, it is proposed to use a genetic algorithm in the work. The analysis of the effectiveness of the proposed method is carried out depending on the convergence rate of such parameters as the mutation coefficient and population size. To solve the problem of diagnostics of agricultural crops, it is proposed to use a recurrent type of neural network. A software modelling complex has been developed that allows solving the problems of plant diseases diagnostics and making forecasts. The results obtained can reduce the costs of agricultural enterprises by reducing the cost of diagnosing agricultural diseases.
Assessment of the innovative potential of agriculture of the member states of the Eurasian Economic Union
Authors: Morkovkin Dmitry , Hutarava Iryna , Ogloblina Elizaveta , Gibadullin Arthur , Kharchenko Svetlana
Published: June 2020

The study is devoted to assessing the innovative potential of agriculture of the member states of the Eurasian Economic Union. As part of the work, it was revealed that the Member States of the Union were united in order to ensure sustainable development in the current and strategic perspective. The analyzed agricultural indicators led to the conclusion that the Russian Federation is the absolute leader in terms of gross output and distribution of agricultural products, the Republic of Kazakhstan occupies the second place, and the Republic of Belarus in third place. At the same time, the specific indicator reflecting the collection and production of agricultural products per capita, which indicates the innovative development of agriculture, was analyzed in the work, as a result, it was revealed that the Russian Federation ranks last in terms of certain indicators. In this connection, mechanisms were proposed in the work aimed at increasing the innovative development of agriculture in the member states of the Eurasian Economic Union.
Assessment of the innovative development of agriculture in Russia
Authors: Khayrzoda Shukrullo , Morkovkin Dmitry , Gibadullin Arthur , Elina Olga , Elena Kolchina
Published: June 2020

In the presented study, an assessment was made of the innovative development of agriculture in the Russian Federation. As part of the study, it was found that innovative development is the effectiveness of the type of activity, which consists in increasing the use of new technologies, saving resources, reducing operating and capital costs, reducing environmental impacts, etc. In this regard, the work analyzed indicators reflecting energy capacity, internal research and development costs and the volume of innovative goods and services. The analyzed indicators indicate that in agriculture there is no tendency to switch to innovative technologies, as a result, the study proposed a model for ensuring the innovative development of agriculture. At the end of the study, conclusions are drawn from the results of the work.
The model of the distribution of oilseed processing products to foreign markets
Authors: Pyzhikova Natalya , Shvalov Kristina , Shvalov Pavel
Published: June 2020

The article presents the results of a study of the world market of oilseeds and products of their processing, regional features of the agro- industrial complex (AIC) of the Krasnoyarsk Territory, as well as the rationale for the development of the region’s export activities in this direction. The purpose of the study is the formation of the model of the distribution of oilseed processing products to foreign markets. Research methods - an analytical and research arsenal of methods and methodological techniques: logical and situational analysis, diagnostics and monitoring, tabular and graphical techniques for interpreting factual information. Among general scientific methods, analysis, synthesis, deduction and induction, analogy have found application. The results of the Research: segmentation of consumers of vegetable oils, marketing complex of products, model of distribution of products to the market of vegetable oils of China. The formed distribution model is based on the goals of the enterprises of the agro-industrial complex of the Krasnoyarsk Territory: to introduce a new product (vegetable oils: rapeseed, cameline, mustard) and expand its presence to the markets. The formed distribution model will expand the possibilities of diversifying the activities of agricultural enterprises in the region when entering the foreign markets and will serve as a serious methodological basis for the design of innovative business models.
Innovative projects with real options in textile production: evaluation of their effect
Authors: Filin Sergey , Yakushev Alexey , Myrkhalykov Zhumahan , Velikorossov Vladimir , Chaykovskaya Lyubov
Published: June 2020

The article raises a relevant topic - increasing the objectivity of assessing the effect of innovative projects with real options in the textile industry. The purpose of this article is to offer recommendations for assessing the effect of innovative projects with real options implemented in the textile industry. The novelty of the article is to identify trends in the development of textile production in Russia and to propose a mathematical model for assessing the effect of innovative projects with real options implemented in textile production. A forecast and an analysis of the main strategic directions of development of the Russian textile industry until 2025 were made. It was concluded that the use of real options changes approaches to innovative projects implemented by textile enterprises, which can lead to a change in the nomenclature and assortment produced within the framework of this project and the enterprise in overall textile products and the extent of its supply.
Economic and legal incentives to develop fish farming companies in Russia
Authors: Yakovlev Alexander , Mikhaylov Vasiliy
Published: June 2020

The article considers the main economic and legal incentives that determine the development of fish farming companies in Russia. The authors analyzed the main legal acts that form the institutional environment in the industry. Among them: the Doctrine of food security, the Federal Law on aquaculture, the state program for the development of the fisheries complex, the industry program for the development of commercial aquaculture and the strategy for the development of the fisheries complex. The study presents the results of an analysis of incentives for the development of fish farming companies in various Russian regions. The role and significance of non-profit organizations in the development of aquaculture is determined in the research.