bluuebunny/crossref_metadata_2025 huggingface dataset:
Sound characteristics of disordered granular disks: effects of contact damping
Authors: Saitoh Kuniyasu , Taghizadeh Kianoosh , Luding Stefan
Published: May 2023

We investigate numerically the sound properties of disordered dense granular packings in two dimensions. Employing linear equations of motion and excluding contact changes from our simulations, we demonstrate time evolution of sinusoidal standing waves of granular disks. We varied the strength of normal and tangential viscous forces between the disks in contact to explore the dependence of sound characteristics such as dispersion relations, attenuation coefficients, and sound speeds on the contact damping. For small wave numbers, the dispersion relations and sound speeds of acoustic modes are quite insensitive to the damping. However, a small dip in the phase speed of the transverse mode decreases as the viscous force in normal direction increases. In addition, the dispersion relation of the rotational mode differs qualitatively from the theoretical prediction for granular crystals. Therefore, disordered configurations with energy dissipation play a prominent role in sound properties of granular materials. Furthermore, we report how attenuation coefficients depend on the contact damping and quantify how they differ from the prediction of lattice theory. These improved relations, based on our numerical results, can in future be compared to advanced theories and experiments.
Inhibition of salty taste and sodium appetite by estrogens in spontaneously hypertensive rats
Authors: Pereira Emilson Donizete , Zenatti Aline Aparecida , Menani José Vanderlei , De Luca Laurival Antonio , Andrade Carina A. F.
Published: May 2023

Estrogen has a well-known effect of reducing salt intake in rats. This mini review focuses on recent findings regarding the interaction of estradiol with brain angiotensin II to control increased sodium palatability that occurs as a result of sodium appetite in spontaneously hypertensive rats.
Implementing psychosocial support models in contexts of extreme adversity: lessons from a process evaluation in Colombia
Authors: Harker Roa Arturo , Córdoba Flechas Natalia , Moya Andrés , Pineros-Leano María
Published: May 2023

Introduction

High quality investments during early childhood allow children to achieve their full potential by setting developmental foundations. However, challenges in the scale-up of evidence-based interventions make across-the-board implementation a non-trivial matter. Moreover, extreme contextual conditions -such as community violence, forced displacement, and poverty- impose a double threat. First, by directly affecting early childhood development (ECD), forced displacement and exposure to violence during early childhood, coupled with deficits in nurturing relationships, can trigger toxic stress, affecting children’s mental health and social and emotional learning. Second, contexts of extreme adversity exacerbate common implementation pitfalls in the scale-up of interventions. Recognizing and documenting “what it takes” to successfully implement “what works” can contribute to the expansion and effectiveness of evidence-based programs that promote ECD in these settings. Semillas de Apego (SA, onward), a community-based psychosocial support model for caregivers, materialized as a strategy to promote ECD in communities affected by violence and forced displacement.

Methods

This article presents the results of the process evaluation of SA during the 2018–2019 implementation in Tumaco, a violence ridden municipality in the south-west border of Colombia, South America. In this phase, the program reached 714 families, 82% direct victims of violence and 57% were internally displaced. The process evaluation combined qualitative and quantitative methodological approaches to produce evidence of factors that promoted implementation quality.

Results

Findings identified salient components of the program that promoted the program’s acceptability, adoption, appropriateness, fidelity and sustainability: a rigorous cultural adaptation; well-structured team selection and training methodologies; and a team support and supervision protocol to provide continuous capacity building and prevent burn-out and other occupational hazards common among professionals in mental health and psychosocial support interventions. The statistical analysis using monitoring data identified key predictors of the dosage delivered (a measure of fidelity). Evidence suggests that initial attendance to the program and observable characteristics -such as educational attainment, violence victimization and employment status-predict a successful compliance (in terms of dosage to benefit from the program).

Discussion

This study provides evidence for the development of structural, organizational, and procedural processes for the adoption, appropriate adaptation, and high-fidelity delivery of psychosocial support models delivered in territories affected by extreme adversity.
Determinants of intimate partner controlling behavior targeting women in Türkiye
Authors: Başkan Burak , Alkan Ömer
Published: May 2023

Background/aim

Intimate partner controlling behavior toward women is an important form of intimate partner violence (IPV), both in terms of limiting women’s daily lives and in terms of reproducing patriarchal culture and male dominance in societies at the micro level. A limited number of studies in the literature have identified the male intimate partner’s controlling behavior as a dependent variable, which is important for understanding the determinants of this type of IPV. There is also a significant gap in the literature in terms of studies focusing on the case of Türkiye. Thus, the main aim of this study was to determine the socio-demographic, economic and violence-related factors that have an effect on women’s status in terms of exposure to control behavior in Türkiye.

Methods

These factors were examined by using binary logistic regression analysis, based on the micro data set collected by the Hacettepe University’s Institute of Population Studies in the 2014-dated National Research on Domestic Violence against Women in Türkiye. A total of 7,462 women between the ages of 15 and 59 were interviewed face-to-face.

Results

The findings of the study revealed that women are more likely to be exposed to controlling behavior if they live in rural areas, are unmarried, speak Turkish as their mother tongue, have bad or very bad health conditions, justify men’s violence and are afraid of their intimate partners. As women’s age, level of education and income contribution increase, their likelihood of exposure to controlling behavior decreases. However, women’s exposure to economic, physical and emotional violence also increases their likelihood of exposure to controlling behavior.

Conclusion

The findings highlighted the importance of creating public policies that make women less vulnerable to men’s controlling behavior, providing women with methods and mechanisms of resistance and raising public awareness of the exacerbating effects of controlling behavior on social inequalities.
Introducing the Neuroplastic Narrative: a non-pathologizing biological foundation for trauma-informed and adverse childhood experience aware approaches
Authors: Peckham Haley
Published: May 2023

Most people accessing mental health services have adverse childhood experiences (ACEs) and/or histories of complex trauma. In recognition of this, there are calls to move away from medical model approaches and move toward trauma-informed approaches which privilege the impact of life experience over underlying pathology in the etiology of emotional and psychological suffering. Trauma-informed approaches lack a biological narrative linking trauma and adversity to later suffering. In its absence, this suffering is diagnosed and treated as a mental illness. This study articulates the Neuroplastic Narrative, a neuroecological theory that fills this gap, conceptualizing emotional and psychological suffering as the cost of surviving and adapting to the impinging environments of trauma and adversity. The Neuroplastic Narrative privileges lived experience and recognizes that our experiences become embedded in our biology through evolved mechanisms that ultimately act to preserve survival in the service of reproduction. Neuroplasticity refers to the capacity of neural systems to adapt and change. Our many evolved neuroplastic mechanisms including epigenetics, neurogenesis, synaptic plasticity, and white matter plasticity allow us to learn from, and adapt to, past experiences. This learning and adaption in turn allows us to better anticipate and physiologically prepare for future experiences that (nature assumes) are likely to occur, based on past experiences. However, neuroplastic mechanisms cannot discriminate between experiences; they function to embed experience regardless of the quality of that experience, generating vicious or virtuous cycles of psychobiological anticipation, to help us survive or thrive in futures that resemble our privileged or traumatic pasts. The etiology of suffering that arises from this process is not a pathology (a healthy brain is a brain that can adapt to experience) but is the evolutionary cost of surviving traumatizing environments. Misidentifying this suffering as a pathology and responding with diagnosis and medication is not trauma-informed and may cause iatrogenic harm, in part through perpetuating stigma and exacerbating the shame which attends complex trauma and ACEs. As an alternative, this study introduces the Neuroplastic Narrative, which is situated within an evolutionary framework. The Neuroplastic Narrative complements both Life History and Attachment Theory and provides a non-pathologizing, biological foundation for trauma-informed and Adverse Childhood Experience aware approaches.
Anxiety and depression among patients with non-tuberculous mycobacterial disease in Shanghai: a cross-sectional study
Authors: Ni Sikang , Chen Yuting , Hu Bijie , Yuan Zheng
Published: May 2023

Objective

To understand the mental health status and its influencing factors among patients with non-tuberculous mycobacterial disease and to provide a reference for medical staff to formulate scientific and feasible intervention strategies.

Methods

A total of 114 patients diagnosed with non-tuberculous mycobacillosis during hospitalization in the Department of Infection from September 2020 to April 2021 were selected as the research participants. Participants’ mental health status and related factors were evaluated using a self-made general patient information questionnaire, self-rating Anxiety Scale (SAS), and self-rating Depression Scale (SDS).

Results

Among 114 patients with non-tuberculous mycosis, 61 (53.51%) exhibited depressive symptoms, and the SDS score was 51.15 ± 13.04, which was higher than the national norm of 41.88 ± 10.57 (p < 0.05); further, 39 patients (34.21%) showed anxiety symptoms, and the SAS score was 45.75 ± 10.81, which was significantly higher than the national norm of 29.78 ± 10.07 (p < 0.05). Body mass index and monthly household income had significant effects on depression in patients with non-tuberculous mycobacterial disease (p < 0.05). Educational level had a significant effect on the anxiety state of patients with non-tuberculous mycobacterial disease (p < 0.05).

Conclusion

Patients with non-tuberculous mycobacterial disease are prone to depression and anxiety. Nurses should pay attention to it in clinical work for the timely identification of and intervention for anxiety and depression and intervene.
Online art therapy pilot in the Western Isles of Scotland: a feasibility and acceptability study of a novel service in a rural community
Authors: Zubala Ania , Kennell Nicola , MacInnes Catriona , MacInnes Marion , Malcolm Martin
Published: May 2023

Introduction

Art therapy, despite being an evidence-based, safe and acceptable intervention, is not widely available to clients in Scotland. Online delivery has the potential to expand the reach and accessibility, but special considerations need to be given to designing successful online art therapy services, due to the unique emphasis on the role of an image and artmaking alongside the therapeutic relationship.

Methods

A pilot online art therapy service was developed and delivered in the Western Isles of Scotland to individual adult clients wishing to increase their psychological wellbeing. This research aimed to assess feasibility and acceptability of the novel service, identify enablers and challenges in setting up and delivering the service, explore participants’ expectations and experiences of art therapy and identify any impacts of the service. Mixed-method evaluation incorporated questionnaires, focus groups, interviews and Audio Image Recordings (AIRs). Findings were grouped into themes across several key areas: service setup, research procedures, intervention design and impacts and insights. Recommendations were developed for the first three areas and the last section presents indications of change and gives voice to client experience primarily.

Results

Online art therapy was described by clients as a judgement-free zone which allowed freedom to experiment, express, feel and immerse themselves in the creative flow. Other benefits included readiness to accept emotions, increased understanding of self and others and being able to see things from a new perspective. Clients recognised the unique nature of art therapy in relation to other psychological treatments and valued the freedom of expression it offered, including the non-verbal.

Discussion

This project demonstrated that online art therapy is not only a feasible an acceptable intervention, but potentially also a powerfully impactful one, capable of instilling a positive change in a surprisingly short period of time. Exploring ways to expand current and introduce new art therapy services is highly recommended. Refinement of an intervention design, tools and research procedures is recommended through further feasibility studies of a larger scale.
Seven Sisters: a mission to study fundamental plasma physical processes in the solar wind and a pathfinder to advance space weather prediction
Authors: Nykyri Katariina , Ma Xuanye , Burkholder Brandon , Liou Yu-Lun , Cuéllar Roberto , Kavosi Shiva , Borovsky Joseph E. , Parker Jeff , Rosen Mitchell , De Moudt Lauren , Ebert Robert Wilkes , Ogasawara Keiichi , Opher Merav , Sibeck David Gary , Di Matteo Simone , Viall Nicholeen , Wallace Samantha , Jorgensen Therese M. , Hesse Michael , West Matthew J. , Adhikari Laxman , Argall Matthew R. , Egedal Jan , Wilder Frederick , Broll Jeffrey , Poh Gangkai , Wing Simon , Russell Christopher
Published: May 2023

This paper summarizes the Seven Sisters solar wind mission concept and the outstanding science questions motivating the mission science objectives. The Seven Sisters mission includes seven individual spacecraft designed to uncover fundamental physical processes in the solar wind and provides up to ≈ 2 days of advanced space weather warnings for 550 Earth days during the mission. The mission will collect critical measurements of the thermal and suprathermal plasma and magnetic fields, utilizing, for the first time, Venus–Sun Lagrange points. The multi-spacecraft configuration makes it possible to distinguish between spatial and temporal changes, define gradients, and quantify cross-scale transport in solar wind structures. Seven Sisters will determine the 3-D structure of the solar wind and its transient phenomena and their evolution in the inner heliosphere. Data from the Seven Sisters mission will allow the identification of physical processes and the quantification of the relative contribution of different mechanisms responsible for suprathermal particle energization in the solar wind.
Intraoperative electrophysiological monitoring determines the final electrode position for pallidal stimulation in dystonia patients
Authors: Baláž Marek , Búřil Jiří , Jurková Tereza , Koriťáková Eva , Hrabovský Dušan , Kunst Jonáš , Bártová Petra , Chrastina Jan
Published: May 2023

Background

Bilateral deep brain stimulation (DBS) of the globus pallidus internus (GPi) is an effective treatment for refractory dystonia. Neuroradiological target and stimulation electrode trajectory planning with intraoperative microelectrode recordings (MER) and stimulation are used. With improving neuroradiological techniques, the need for MER is in dispute mainly because of the suspected risk of hemorrhage and the impact on clinical post DBS outcome.

Objective

The aim of the study is to compare the preplanned GPi electrode trajectories with final trajectories selected for electrode implantation after electrophysiological monitoring and to discuss the factors potentially responsible for differences between preplanned and final trajectories. Finally, the potential association between the final trajectory selected for electrode implantation and clinical outcome will be analyzed.

Methods

Forty patients underwent bilateral GPi DBS (right-sided implants first) for refractory dystonia. The relationship between preplanned and final trajectories (MicroDrive system) was correlated with patient (gender, age, dystonia type and duration) and surgery characteristics (anesthesia type, postoperative pneumocephalus) and clinical outcome measured using CGI (Clinical Global Impression parameter). The correlation between the preplanned and final trajectories together with CGI was compared between patients 1–20 and 21–40 for the learning curve effect.

Results

The trajectory selected for definitive electrode implantation matched the preplanned trajectory in 72.5% and 70% on the right and left side respectively; 55% had bilateral definitive electrodes implanted along the preplanned trajectories. Statistical analysis did not confirm any of the studied factors as predictor of the difference between the preplanned and final trajectories. Also no association between CGI and final trajectory selected for electrode implantation in the right/left hemisphere has been proven. The percentages of final electrodes implanted along the preplanned trajectory (the correlation between anatomical planning and intraoperative electrophysiology results) did not differ between patients 1–20 and 21–40. Similarly, there were no statistically significant differences in CGI (clinical outcome) between patients 1–20 and 21–40.

Conclusion

The final trajectory selected after electrophysiological study differed from the preplanned trajectory in a significant percentage of patients. No predictor of this difference was identified. The anatomo-electrophysiological difference was not predictive of the clinical outcome (as measured using CGI parameter).
Numerical Study on the Heating Effect of a Spring-Loaded Actuator—Part II: Optimization Design of Heater Parameters
Authors: Zhao Zhen , Xi Lei , Gao Jianmin , Xu Liang , Li Yunlong
Published: May 2023

Unfavorable temperatures and humidity will cause the failure of spring actuators. In order to ensure the safe operation of the actuator, it is necessary to optimize the design of the built-in heater system of the actuator itself. In this study, an experimental design and a response surface model were used to fit the empirical formulas for the minimum temperature, maximum humidity, and maximum temperature on the heater surface. On this basis, a genetic algorithm was used to establish the optimal size of the heater in the chamber of the spring actuator. The study results show that the air inside the actuator shows a trend of a decrease in temperature and an increase in relative humidity from top to bottom. The empirical equation obtained by fitting the second-order response surface model has high accuracy, and the maximum prediction errors for the minimum temperature, maximum relative humidity, and maximum temperature of the heater surface of the spring actuator are −0.5%, 11.7%, and 4.7%, respectively. When the environmental temperature reduces from 313 K to 233 K, the optimal heating power of the heater increases from 10 W to 490 W, the optimal relative length increases from 3.57 to 6, and the optimal relative width increases from 1 to 5.3. Therefore, the study can act as a reference for the temperature and humidity control system of future actuators.
Loss Determination Techniques for Piezoelectrics: A Review
Authors: Park Yoonsang , Choi Minkyu , Uchino Kenji
Published: May 2023

Nowadays, heat dissipation in electronic devices is one of the serious issues to be resolved in energy and environmental terms. Piezoelectric materials are being utilized in many electronic devices, yet the roadblock toward further miniaturization of piezoelectric devices was identified as heat dissipation. Three types of losses (dielectric, elastic, and piezoelectric) are known to be related to the heat dissipation mechanism of piezoelectric materials, therefore obtaining accurate values of the loss factors is essential for minimizing the heat dissipation of piezoelectric devices. The purpose of this review is to introduce several loss determination techniques for piezoelectric materials. The review starts with brief discussions of the loss factors and of the importance of piezoelectric loss that is related to the antiresonance frequency. Then, the review covers the methods developed by our research group, including High Power Piezoelectric Characterization Systems (HiPoCSTM), the crystallographic orientation method and the partial electrode method, as well as other methods such as the pulse-echo method and computer-based approaches. The review continues with a discussion of piezoelectric device modeling (analytical solution and equivalent circuits) that considers loss factors. Finally, the review provides concluding remarks for addressing current issues and suggesting possible solutions.
Ferroelectret Polypropylene Foam-Based Piezoelectric Energy Harvester for Different Seismic Mass Conditions
Authors: Ravikumar Chandana , Markevicius Vytautas
Published: May 2023

Energy harvesting technologies and material science has made it possible to tap into the abundant amount of surrounding vibrational energy to efficiently convert it into useable energy providing power to portable electronics and IoT devices. Recent investigations show that the piezoelectric effect is created in cellular polymers called ferroelectrets. These cellular-compliant polymers with polarized pores have a piezoelectric response to generate electrical energy when subjected to mechanical strain or surrounding vibration. It is found that there is a significant difference between ferroelectret polarized cellular polypropylene foam and traditional piezoelectric polymers such as polyvinylidene fluoride (PVDF). The former has approximately ten times higher piezoelectric coefficient than the latter. This means that with an acceleration of 9.81 m/s2 force on this material, ferroelectrets generate up to 39 (µW/g/mm3) power output. Designing a polypropylene-based piezoelectric energy harvester based on the d33 mode of vibration can be challenging due to several factors, as it requires balancing multiple factors such as mechanical stability, piezoelectric response, circuit topology, electrode size, spacing, placement relative to the piezoelectric material, and so on. This paper proposes the preliminary experimental investigation of ferroelectret cellular polypropylene foam in harvesting performance. Suggestions of different approaches for the structural design of energy harvesters are provided. The vibration-dependent response and generated output are examined concerning pulse or sinusoidal input excitation. The voltage generated for both excitations is compared and suggestions are provided regarding the suitable kind of excitation for the chosen ferroelectret material. Finally, conclusions and prospects for ferroelectret materials used in energy-harvesting applications are given.
The Study of Selected Aspects of the Suborbital Vehicle Return Flight Trajectory
Authors: Kwiek Agnieszka , Figat Marcin , Goetzendorf-Grabowski Tomasz
Published: May 2023

The article presents the results of preliminary studies of the parameters of the return flight trajectory of a rocket plane for suborbital tourist flights into space. The rocket plane is designed as a tailless vehicle and has an unconventional arrangement of control surfaces: elevons and side plates that can rotate. The main aim of the research presented in this paper is to investigate the dynamic stability of the rocket plane and the response to control in the return suborbital flight. The secondary objective is to study the behavior of the rocket plane with respect to the initial state of the return flight. The key parameters taken into account in this study are the Mach number and G-load. Moreover, a study of the trim condition, dynamic stability and response to control of a rocket plane in the low part of the stratosphere is presented. The tests were carried out using a numerical simulation of the flight of a rocket plane. Dynamic stability was determined on the basis of time history analysis, and the results were compared with the results obtained by solving the eigenvalues problem. The results revealed that the rocket plane should be equipped with a Stability Augmentation System to improve short period damping at supersonic speeds at moderate altitudes. It can also be concluded that the maximum load G and Ma do not occur at the same height of flight. In terms of the effectiveness of the control surfaces, they start working at an altitude of 55 km. Due to the speed regime, the obtained results can be useful in the design of such objects as rocket planes, highly maneuverable and supersonic aircraft.
Nutritional and Health Values of Tunisian Edible Oils from Less-Used Plant Sources
Authors: Vadalà Rossella , Nava Vincenzo , Turco Vincenzo Lo , Potortì Angela Giorgia , Costa Rosaria , Rando Rossana , Ben Mansour Hedi , Ben Amor Nawres , Beltifa Asma , Santini Antonello , Di Bella Giuseppa
Published: May 2023

The reclaim of less-used plant sources is a novel approach to the growing demand for healthy and eco-friendly foods, and it constitutes a sustainable alternative to replace conventional food ingredients and sources of bioactives. In this work, a phytochemical profile in terms of mineral elements, total polyphenols, fatty acids, α-tocopherol, sterols, and squalene was realized for several commercial edible oils of bitter almond, pumpkin seed, apricot kernel, nigella, souchet, and wheat germ sourced in the Tunisian market. Wheat germ oil, which showed the most significant nutritional and healthy impact, contained the highest contents of Mg (52.37 mg kg−1); Na (40.75 mg kg−1); Mn (2.39 mg kg−1); total sterols (1713.80 mg/100 g); and PUFAs (61.01%). The high levels of squalene detected on pumpkin seed oils (1160.01 mg kg−1) allows to proposet it as valuable functional food. The highest total polyphenolic content found in nigella oils (109.01 mg GAE kg−1) justifies its stability and antioxidant properties. A daily consumption of 10 g of bitter almond or souchet oil contributes to a 17.53% and 8.6% alpha-tocopherol daily intake, respectively. The usual consumption of these minor oils may represent a sustainable and convenient source of bioactives with beneficial effects on both human health and nutrition.
Evaluation of Lactic Acid Bacteria Isolated from Piglets Tract and Encapsulation of Selected Probiotic Cells
Authors: Dumitru Mihaela , Lefter Nicoleta Aurelia , Habeanu Mihaela , Ciurescu Georgeta , Vodnar Dan C. , Elemer Simon , Sorescu Ionut , Georgescu Sergiu Emil , Dudu Andreea
Published: May 2023

Fourteen lactic acid bacteria (LAB) strains were isolated from the intestinal tract and feces of piglets. Among these isolates, only twelve were biochemically (API 50 CHL and ABIS online for bacterial identification) and genetically (16S rRNA sequencing) confirmed as Limosilactobacillus fermentum, Lactobacillus acidophilus, and Lactiplantibacillus plantarum. Experiments to evaluate the probiotic potential of the isolates including pH tolerance (pH 2.0 and 3.0), bile salts (0.3% ox gall) resistance, hemolysis activity, antibiotic susceptibility, and high-temperature resistance were tested. Only two isolates from identified strains exhibited high survival rates when exposed to low pH and bile salts, these were L. acidophilus IBNA 76 and L. plantarum IBNA 84. The antibiotic test presented 100% resistance of both strains to gentamicin, kanamycin, lincomycin, colistin sulfate, erythromycin, amikacin, oxytetracycline, enrofloxacin, streptomycin, and tilmicosin, lower than the 0.6 mm inhibition zone diameter. Promising isolates (L. acidophilus IBNA 76 and L. plantarum IBNA 84) were exposed to the spray-drying technique based on visible probiotic potential and survival rates. Carrier matrix material was used as a maltodextrin-glucose solution. The encapsulation probiotic isolated survived both over 67% and 77%, corresponding to a decrease in strain viability from 109 to 107 CFU/g. After further in vitro evaluations, the findings of this study showed that, from all LAB strains, L. acidophilus IBNA 76 and L. plantarum IBNA 84 may be considered probiotic candidates for animal nutrition and may have promising performance in piglet feed due to their origin of isolation.
Computational Fluid Dynamics Modeling of Ammonia Concentration in a Commercial Broiler Building
Authors: Gonçalves João C. , Lopes António M. G. , Pereira José L. S.
Published: May 2023

In the present study, a numerical model was developed to predict the flow pattern inside a broiler building. The model was intended to predict the velocity fields inside the domain and the ammonia (NH3) emitted or released by litter from poultry housing. The numerical model was developed in computational fluid dynamics (CFDs) commercial code and intended to represent a commercial broiler building and to simulate the 3D and heat transfer in steady-state flow. The evaporative cooling pads were also included in the model. The validation of the model was based on experimental measurements obtained in previous studies. The simulations were focused on the summer, winter, and mid-season conditions. Numerical measurements of NH3 concentration were compared with the experimental measurements, and a quite good agreement was verified. The numerical results allowed the characterization of: the inside flow pattern developed for the summer and winter periods and the NH3 and velocity field distributions inside the broiler building. It was found that NH3 concentration increased along the tunnel, as a result, especially, of the low flow rate of the exhaust fan. It was verified that the low velocities inside domain were not sufficient to remove the gaseous pollutants.
Can Digital Finance Promote Professional Farmers’ Income Growth in China?—An Examination Based on the Perspective of Income Structure
Authors: Wang Yue , Weng Feilong , Huo Xuexi
Published: May 2023

As a product of the deep integration of digital technology and financial services, digital finance provides vital financial support for rural revitalization and increasing farmers’ income. Based on the survey data of 1030 professional apple growers in the typical areas of Shaanxi Province, this paper empirically tested the impact of digital financial involvement on professional farmers’ income, and its mechanism. The study found that digital finance significantly impacted the growth of professional farmer households’ total incomes. However, this impact was not achieved by directly increasing property income and transfer incomes, but through two indirect ways: first, digital finance promoted productive agricultural investment, which further promoted the increase in agricultural income; secondly, digital finance further increased the income of self-operated industry and commerce by promoting the entrepreneurship of professional farmer households. Furthermore, the heterogeneity analysis showed that professional farmers with high education levels, large-scale farmland operations, and high levels of agricultural mechanization participate in digital finance, which plated a more significant role in promoting their total household income. From the perspective of different types of digital financial services, mobile payment and digital credit could promote increases in the income of professional farmers, but the income increase effect of digital wealth management has not yet been shown.
Detection and Counting of Small Target Apples under Complicated Environments by Using Improved YOLOv7-tiny
Authors: Ma Li , Zhao Liya , Wang Zixuan , Zhang Jian , Chen Guifen
Published: May 2023

Weather disturbances, difficult backgrounds, the shading of fruit and foliage, and other elements can significantly affect automated yield estimation and picking in small target apple orchards in natural settings. This study uses the MinneApple public dataset, which is processed to construct a dataset of 829 images with complex weather, including 232 images of fog scenarios and 236 images of rain scenarios, and proposes a lightweight detection algorithm based on the upgraded YOLOv7-tiny. In this study, a backbone network was constructed by adding skip connections to shallow features, using P2BiFPN for multi-scale feature fusion and feature reuse at the neck, and incorporating a lightweight ULSAM attention mechanism to reduce the loss of small target features, focusing on the correct target and discard redundant features, thereby improving detection accuracy. The experimental results demonstrate that the model has an mAP of 80.4% and a loss rate of 0.0316. The mAP is 5.5% higher than the original model, and the model size is reduced by 15.81%, reducing the requirement for equipment; In terms of counts, the MAE and RMSE are 2.737 and 4.220, respectively, which are 5.69% and 8.97% lower than the original model. Because of its improved performance and stronger robustness, this experimental model offers fresh perspectives on hardware deployment and orchard yield estimation.
A Plastid RNA Polymerase-Associated Protein Is Involved in Early Chloroplast Development in Rice
Authors: Song Shuang , Wang Ying , Ding Xin , Tian Yunlu , Wu Zewan , Li Hang , Li Qing , Wang Yunpeng , Zhou Shirong , Dong Xiaoou , Wan Jianmin , Liu Linglong
Published: May 2023

Plastid-encoded RNA polymerase (PEP) regulates the expression of chloroplast genes involved in photosynthesis and chloroplast development in rice. The PEP-associated protein (PAP) PAP7/pTAC14 is essential for the formation of the PEP complex. However, the function of PAP7 in chloroplast development in rice remains unclear. In this study, we identified a mutant, w81, which displays a yellow-green leaf symptom before the four-leaf stage. The seedlings of the w81 mutant display reduced chlorophyll content, abnormal chloroplast structure, and elevated reactive oxygen species (ROS) level. After the four-leaf stage, plant leaves of the w81 mutant gradually turn green with increased chlorophyll content. Map-based cloning reveals that the PAP7 in the w81 mutant harbors a T to A single-base substitution. This mutation blocks the normal splicing of the fifth intron and generates 74 bp longer transcripts in the mutant. The OsPAP7 protein mainly localizes to the chloroplast and directly interacts with OsPAP5. Our results highlight that OsPAP7 regulates the expression of PEP-dependent chloroplast genes and plays a key role in chloroplast development in rice.
Cross-Sectional Study for Detection and Risk Factor Analysis of ESBL-Producing Avian Pathogenic Escherichia coli Associated with Backyard Chickens in Pakistan
Authors: Saeed Muhammad Adnan , Saqlain Muhammad , Waheed Usman , Ehtisham-ul-Haque Syed , Khan Aman Ullah , Rehman Aziz ur , Sajid Muhammad , Atif Farhan Ahmad , Neubauer Heinrich , El-Adawy Hosny
Published: May 2023

The increasing incidence of extended-spectrum β-lactamase (ESBL)-producing Escherichia (E.) coli in backyard chicken farming in Pakistan is of serious concern. This study aimed to assess the prevalence, antimicrobial resistance patterns and risk factors associated with ESBL avian pathogenic E. coli (APEC) isolated from backyard chickens in the Jhang district, Punjab, Pakistan. In total, 320 cloacal swabs were collected from four breeds of backyard chicken (Aseel, Golden, Misri and Necked Neck). ESBL E. coli were phenotypically identified using double disc synergy test (DDST) and corresponding genes were confirmed by multiplex polymerase chain reaction (mPCR). Out of the 320 samples, 164 (51.3%) were confirmed as E. coli, while 74 (45.1%) were characterized as ESBL E. coli. The frequency of isolation of ESBL E. coli was highest in Aseel chickens (35.1%). Of the 164 confirmed E. coli, 95.1%, 78.6%, 76.8%, 71.3%, 70.1%, 68.9%, 60.4% and 57.3% were resistant against tylosin, doxycycline, cefotaxime, enrofloxacin, colistin, trimethoprim/sulfamethoxazole, chloramphenicol and gentamicin, respectively. The ESBL gene types detected and their corresponding proportions were blaCTX-M (54.1 %, 40/74), blaTEM, (12.2%, 9/74) and co-existence (blaCTX-M and blaTEM) were shown in 33.8% (25/74). The blaCTX-M gene sequence showed homology to blaCTX-M-15 from clinical isolates. The mean multiple antibiotic resistance index (MARI) was found to be higher among ESBL E. coli (0.25) when compared to non-ESBL E. coli (0.17). Both free-range husbandry management system (p = 0.02, OR: 30.00, 95% CI = 1.47–611.79) and high antimicrobial usage in the last 6 months (p = 0.01, OR: 25.17, 95% CI = 1.81–348.71) were found significantly associated with isolation of ESBL-producing E. coli in the tested samples using binary logistic regression analysis. This study confirmed the potential of backyard chickens as a reservoir for ESBL E. coli in the Jhang district, Punjab, Pakistan.
From Gene to Transcript and Peptide: A Deep Overview on Non-Specific Lipid Transfer Proteins (nsLTPs)
Authors: Santos-Silva Carlos André dos , Ferreira-Neto José Ribamar Costa , Amador Vinícius Costa , Bezerra-Neto João Pacífico , Vilela Lívia Maria Batista , Binneck Eliseu , Rêgo Mireli de Santana , da Silva Manassés Daniel , Mangueira de Melo Ana Luiza Trajano , da Silva Rahisa Helena , Benko-Iseppon Ana Maria
Published: May 2023

Non-specific lipid transfer proteins (nsLTPs) stand out among plant-specific peptide superfamilies due to their multifaceted roles in plant molecular physiology and development, including their protective functions against pathogens. These antimicrobial agents have demonstrated remarkable efficacy against bacterial and fungal pathogens. The discovery of plant-originated, cysteine-rich antimicrobial peptides such as nsLTPs has paved the way for exploring the mentioned organisms as potential biofactories for synthesizing antimicrobial compounds. Recently, nsLTPs have been the focus of a plethora of research and reviews, providing a functional overview of their potential activity. The present work compiles relevant information on nsLTP omics and evolution, and it adds meta-analysis of nsLTPs, including: (1) genome-wide mining in 12 plant genomes not studied before; (2) latest common ancestor analysis (LCA) and expansion mechanisms; (3) structural proteomics, scrutinizing nsLTPs’ three-dimensional structure/physicochemical characteristics in the context of nsLTP classification; and (4) broad nsLTP spatiotemporal transcriptional analysis using soybean as a study case. Combining a critical review with original results, we aim to integrate high-quality information in a single source to clarify unexplored aspects of this important gene/peptide family.
The Rhodanese PspE Converts Thiosulfate to Cellular Sulfane Sulfur in Escherichia coli
Authors: Yu Qiaoli , Ran Mingxue , Xin Yuping , Liu Huaiwei , Liu Honglei , Xia Yongzhen , Xun Luying
Published: May 2023

Hydrogen sulfide (H2S) and its oxidation product zero-valent sulfur (S0) play important roles in animals, plants, and bacteria. Inside cells, S0 exists in various forms, including polysulfide and persulfide, which are collectively referred to as sulfane sulfur. Due to the known health benefits, the donors of H2S and sulfane sulfur have been developed and tested. Among them, thiosulfate is a known H2S and sulfane sulfur donor. We have previously reported that thiosulfate is an effective sulfane sulfur donor in Escherichia coli; however, it is unclear how it converts thiosulfate to cellular sulfane sulfur. In this study, we showed that one of the various rhodaneses, PspE, in E. coli was responsible for the conversion. After the thiosulfate addition, the ΔpspE mutant did not increase cellular sulfane sulfur, but the wild type and the complemented strain ΔpspE::pspE increased cellular sulfane sulfur from about 92 μM to 220 μM and 355 μM, respectively. LC-MS analysis revealed a significant increase in glutathione persulfide (GSSH) in the wild type and the ΔpspE::pspE strain. The kinetic analysis supported that PspE was the most effective rhodanese in E. coli in converting thiosulfate to glutathione persulfide. The increased cellular sulfane sulfur alleviated the toxicity of hydrogen peroxide during E. coli growth. Although cellular thiols might reduce the increased cellular sulfane sulfur to H2S, increased H2S was not detected in the wild type. The finding that rhodanese is required to convert thiosulfate to cellular sulfane sulfur in E. coli may guide the use of thiosulfate as the donor of H2S and sulfane sulfur in human and animal tests.
Enhancing the Stability and Bioaccessibility of Tree Peony Seed Oil Using Layer-by-Layer Self-Assembling Bilayer Emulsions
Authors: He Wen-Sen , Wang Qingzhi , Li Zhishuo , Li Jie , Zhao Liying , Li Junjie , Tan Chen , Gong Fayong
Published: May 2023

Tree peony seed oil (TPSO) is an important plant source of n-3 polyunsaturated fatty acid (α-linolenic acid, ALA > 40%) that is receiving increasing attention for its excellent antioxidant and other activities. However, it has poor stability and bioavailability. In this study, a bilayer emulsion of TPSO was successfully prepared using a layer-by-layer self-assembly technique. Among the proteins and polysaccharides examined, whey protein isolate (WPI) and sodium alginate (SA) were found to be the most suitable wall materials. The prepared bilayer emulsion contained 5% TPSO, 0.45% whey protein isolate (WPI) and 0.5% sodium alginate (SA) under selected conditions and its zeta potential, droplet size, and polydispersity index were −31 mV, 1291 nm, and 27%, respectively. The loading capacity and encapsulation efficiency for TPSO were up to 84% and 90.2%, respectively. It was noteworthy that the bilayer emulsion showed significantly enhanced oxidative stability (peroxide value, thiobarbituric acid reactive substances content) compared to the monolayer emulsion, which was accompanied by a more ordered spatial structure caused by the electrostatic interaction of the WPI with the SA. This bilayer emulsion also exhibited markedly improved environmental stability (pH, metal ion), rheological properties, and physical stability during storage. Furthermore, the bilayer emulsion was more easily digested and absorbed, and had higher fatty acid release rate and ALA bioaccessibility than TPSO alone and the physical mixtures. These results suggest that bilayer emulsion containing WPI and SA is an effective TPSO encapsulation system and has significant potential for future functional food development.
Paclitaxel Protects against Isoproterenol-Induced Damage in Rat Myocardium: Its Heme-Oxygenase Mediated Role in Cardiovascular Research
Authors: Matusovits Danica , Murlasits Zsolt , Kupai Krisztina , Baráth Zoltán , Kang Hsu Lin , Osváth Péter , Szűcs Miklós , Priksz Dániel , Juhász Béla , Radák Zsolt , Várkonyi Tamás , Pavo Imre , Pósa Anikó
Published: May 2023

(1) Background: In cardiovascular applications, paclitaxel inhibits smooth muscle cell proliferation and migration and significantly reduces the occurrence of restenosis and target lesion revascularization. However, the cellular effects of paclitaxel in the myocardium are not well understood; (2) Methods: Wistar rats were divided into four groups: control (CTRL), isoproterenol (ISO) treated (1 mg/kg) and two groups treated with paclitaxel (PAC), which was administrated (10 mg/kg/day) for 5 days by gavage/per os alone or in combination (ISO + PAC) 3 weeks after ISO treatment. Ventricular tissue was harvested 24 h later for measurements of heme oxygenase (HO-1), reduced glutathione (GSH), oxidized glutathione (GSSG), superoxide dismutase (SOD), NF-κB, TNF-α and myeloperoxidase (MPO); (3) Results: HO-1 protein concentration, HO-1 activity, SOD protein concentration and total glutathione significantly decreased in response to ISO treatment. When PAC was administered in conjunction with ISO, HO-1, SOD concentration and total glutathione were not different from control levels. MPO activity, NF-κB concentration and TNF-α protein concentration were significantly increased in the ISO-only group, while the levels of these molecules were restored when PAC was co-administered; (4) Conclusions: Oral administration of PAC can maintain the expression of important antioxidants, anti-inflammatory molecules, HO-1, SOD and GSH, and suppress the production of TNF-α, MPO and NF-κB, which are involved in myocardial damage. The principal component of this cellular defense seems to be the expression of HO-1.
Textile Physical Barriers: An Assessment of the Prison Effect as a Design Criterion to Increase the Porosity without Loss of Efficacy
Authors: Álvarez Antonio J. , Oliva Rocío M.
Published: May 2023

Insect-proof screens are a physical method of crop protection against pests whose use is widespread. The hole size must be optimized since too small holes give rise to poorly porous textiles that cause a significant reduction in the permeability of the textiles to air. A common design strategy is to use a rectangular-hole geometry with the aim of limiting the hole width to prevent insect entry and increasing the hole length to increase the hole surface. However, the validity of this approach has not been tested, and indications suggest that it may not be offering the expected results. The results obtained discredit this widely accepted design criterion since they show that, while the hole width is maintained, protective screens lose efficacy as the hole length increases at least in the range of values considered. It is not possible to find an explanation for these results by considering the hole geometry from a two-dimensional point of view. However, when considering the spatial arrangement of the threads, it is understood that the passage surface for the insects is larger than that considered in the orthogonal projection images and that as the hole length increases, the efficacy of the textiles decreases.