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Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 211
Author(s):  
Giulia Maesano ◽  
Mirco Milani ◽  
Elisabetta Nicolosi ◽  
Mario D’Amico ◽  
Gaetano Chinnici

In the agri-food sector, the Life Cycle Assessment method (LCA) is used to evaluate the environmental impact of a product. Within agri-food products, wine is among the most analysed products, not only for its economic importance but also for the environmental impact of its activity. The paper aims to identify the main trends in the wine sector revolving around environmental evaluation using the LCA method in the academic literature. The aim is to investigate the literature on life cycle assessment analysis of grape and wine production through the systematic grouping of papers into clusters of research. So, the purpose is to discuss the gaps and insights identified by the study in order to aid in the development of a comprehensive state of the art on the topic. Scopus and Web of Science were used to search all articles following a clear and replicable protocol. The results (keywords) were subjected to co-occurrence analysis using VOSviewer, after which the articles were further analysed. Through a bibliographic coupling analysis, the research results were grouped through a network analysis that allowed identifying the research trends on the topic. Three clusters were identified containing the main lines of research on the subject. The results show that nowadays the literature is focusing on concerns related to climate change and consumer awareness on sustainability issues and certifications as well as environmental impacts generated mainly in the production phase in the vineyard. The research results are of interest for future research on LCA analysis in the wine sector in order to contribute to the discussion on the current model in the global wine sector.


2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Ambrose H. Wong ◽  
Nasim S. Sabounchi ◽  
Hannah R. Roncallo ◽  
Jessica M. Ray ◽  
Rebekah Heckmann

Abstract Background Over 1.7 million episodes of agitation occur annually across the United States in emergency departments (EDs), some of which lead to workplace assaults on clinicians and require invasive methods like physical restraints to maintain staff and patient safety. Recent studies demonstrated that experiences of workplace violence contribute to symptoms of burnout, which may impact future decisions regarding use of physical restraints on agitated patients. To capture the dynamic interactions between clinicians and agitated patients under their care, we applied qualitative system dynamics methods to develop a model that describes feedback mechanisms of clinician burnout and the use of physical restraints to manage agitation. Methods We convened an interprofessional panel of clinician stakeholders and agitation experts for a series of model building sessions to develop the current model. The panel derived the final version of our model over ten sessions of iterative refinement and modification, each lasting approximately three to four hours. We incorporated findings from prior studies on agitation and burnout related to workplace violence, identifying interpersonal and psychological factors likely to influence our outcomes of interest to form the basis of our model. Results The final model resulted in five main sets of feedback loops that describe key narratives regarding the relationship between clinician burnout and agitated patients becoming physically restrained: (1) use of restraints decreases agitation and risk of assault, leading to increased perceptions of safety and decreasing use of restraints in a balancing feedback loop which stabilizes the system; (2) clinician stress leads to a perception of decreased safety and lower threshold to restrain, causing more stress in a negatively reinforcing loop; (3) clinician burnout leads to a decreased perception of colleague support which leads to more burnout in a negatively reinforcing loop; (4) clinician burnout leads to negative perceptions of patient intent during agitation, thus lowering threshold to restrain and leading to higher task load, more likelihood of workplace assaults, and higher burnout in a negatively reinforcing loop; and (5) mutual trust between clinicians causes increased perceptions of safety and improved team control, leading to decreased clinician stress and further increased mutual trust in a positively reinforcing loop. Conclusions Our system dynamics approach led to the development of a robust qualitative model that illustrates a number of important feedback cycles that underly the relationships between clinician experiences of workplace violence, stress and burnout, and impact on decisions to physically restrain agitated patients. This work identifies potential opportunities at multiple targets to break negatively reinforcing cycles and support positive influences on safety for both clinicians and patients in the face of physical danger.


Author(s):  
Ahmed E. Abouelregal ◽  
Kadry Zakaria ◽  
Magdy A. Sirwah ◽  
Hijaz Ahmad ◽  
Ali F. Rashid

This work aims to assess the response of viscoelastic Kelvin–Voigt microscale beams under initial stress. The microbeam is photostimulated by the light emitted by an intense picosecond pulsed laser. The photothermal elasticity model with dual-phase lags, the plasma wave equation and Euler–Bernoulli beam theory are utilized to construct the system equations governing the thermoelastic vibrations of microbeams. Using the Laplace transform technique, the problem is solved analytically and expressions are provided for the distributions of photothermal fields. Taking aluminum as a numerical example, the effect of the pulsed laser duration coefficient, viscoelasticity constants and initial stress on photothermal vibrations has been studied. In addition, a comparison has been made between different models of photo-thermoelasticity to validate the results of the current model. Photo-microdynamic systems might be monolithically integrated on aluminum microbeams using microsurface processing technology as a result of this research.


2022 ◽  
Vol 221 (3) ◽  
Author(s):  
Suzan Kors ◽  
Christian Hacker ◽  
Chloe Bolton ◽  
Renate Maier ◽  
Lena Reimann ◽  
...  

Peroxisomes and the endoplasmic reticulum (ER) cooperate in cellular lipid metabolism. They form membrane contacts through interaction of the peroxisomal membrane protein ACBD5 (acyl-coenzyme A–binding domain protein 5) and the ER-resident protein VAPB (vesicle-associated membrane protein–associated protein B). ACBD5 binds to the major sperm protein domain of VAPB via its FFAT-like (two phenylalanines [FF] in an acidic tract) motif. However, molecular mechanisms, which regulate formation of these membrane contact sites, are unknown. Here, we reveal that peroxisome–ER associations via the ACBD5-VAPB tether are regulated by phosphorylation. We show that ACBD5-VAPB binding is phosphatase-sensitive and identify phosphorylation sites in the flanking regions and core of the FFAT-like motif, which alter interaction with VAPB—and thus peroxisome–ER contact sites—differently. Moreover, we demonstrate that GSK3β (glycogen synthase kinase-3 β) regulates this interaction. Our findings reveal for the first time a molecular mechanism for the regulation of peroxisome–ER contacts in mammalian cells and expand the current model of FFAT motifs and VAP interaction.


2022 ◽  
Author(s):  
Jiahao Chen ◽  
Jie Mei ◽  
Xin Yuan ◽  
Yuefei Zuo ◽  
Jingwei Zhu ◽  
...  

<div>This paper designs parameter adaptation algorithms for online simultaneous identification of a two-parameter sigmoid inverter model for compensating inverter nonlinearity to reduce the voltage error in flux estimation for a position sensorless motor drive. The inverter model has two parameters, a2 and a3, where a2 is “plateau voltage”, and a3 is a shape parameter that mainly accounts for the stray capacitor effect. Parameter a3 is identified by the (6k ± 1)-th order harmonics in measured current. Parameter a2 is identified by the amplitude mismatch of the estimated active flux. It is found that the classic linear flux estimator, i.e., the hybrid of voltage model and current model, cannot be used for a2 identification. This paper proposes to use a saturation function based nonlinear flux estimator to build an effective indicator for a2 error. The coupled identifiability of the two parameters is revealed and analyzed, which was not seen in literature. The concept of the low current region where the two-way coupling between a2 and a3 occurs is established. In theory, it is suggested to stop the inverter identification in the low current region. However, the experimental results in which dc bus voltage variation and load change are imposed, have shown the effectiveness of the proposed online inverter identification and compensation method, even in low current region.</div>


2022 ◽  
Vol 17 (1) ◽  
pp. 36-51
Author(s):  
Maryam Khokhar ◽  
◽  
Wasim Iqbal ◽  
Yumei Hou ◽  
Muhammad Irshad

In the past ten years, sustainable supply chain management (SSCM) attach great importance due to consumers, for-profit and profitless organizations, laws and regulations to the social and corporate responsibilities of consumers, so it has been recognized by practitioners and scholars. Supplier selection, environmental effect like a lockdown, and social cooperation and other SSCM programs can play an important part in realizing the triple bottom line (TBL) of economic, environmental, social assistances. In supply chain management (SCM), the sustainable supplier selection (SSS) and firm performance plays an important role. Traditionally, when evaluating SSS performance, organizations will consider a new framework to obtain the overall criteria/sub-criteria of the sustainability index by encapsulating sustainability. In this paper 12 sub-criteria for 3 pillars of sustainability as economic, environment and social performance is collected. Although there are many articles on SSS and evaluation, so far, research on sustainability issues is very limited. This study endeavours to propose a fuzzy multi-criteria approach to discuss SSCM planning, and studies the issue of determining a current model for SSS in the supply chain during COVID-19 based on the TBL method. For express the linguistic value of the subjective preference of experts we use triangular fuzzy numbers. By using fuzzy numbers to find standard weights for qualitative performance evaluation, then fuzzy TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) is proposed to find the ranking of SSS. However, COVID-19 has a negative role in SSS and in firm performance. The situation of lockdown due to COVID-19 has a negative effect on the performance of the organizations. An example is given of the proposed method.


2022 ◽  
Vol 961 (1) ◽  
pp. 012032
Author(s):  
Israa H Alkinani ◽  
Luma Fadhil Ali

Abstract The investigation of natural convection in an annular space between two concentric cylinders partially filled with metal foam is introduced numerically. The metal foam is inserted with a new suggested design that includes the distribution of metal foam in the annular space, not only in the redial direction, but also with the angular direction. Temperatures of inner and outer cylinders are maintained at constant value in which inner cylinder temperature is higher than the outer one. Naiver Stokes equation with Boussinesq approximation is used for fluid regime while Brinkman-Forchheimer Darcy model used for metal foam. In addition, the local thermal equilibrium condition in the energy equation of the porous media is presumed to be applicable for the present investigation. CFD ANSYS FLUENT software package (version 18.2) is used as a solver to this problem. Various parameters are examined; Rayleigh number, Darcy number, and thermal conductivity ratio to study the effect of them on fluid flow and heat transfer inside the annuli space in the suggested design of metal foam layer. current model is compared with the available published results and good agreement is noticed. Results showed that as Rayleigh number increases the dominated of convection mode increases and Nusselt increases. Also, Nusselt is larger at the higher Darcy and thermal conductivity ratio. It was found that at Rayleigh of 106 and thermal conductivity ratio of 104 Nusselt reach its higher value which is 6.69 for Darcy of 0.1 and 6.77 for Darcy of 0.001. A comparison between this design and the traditional design was established for Darcy 0.001 and thermal conductivity ratio 102, and its showed a good enhancement in Nusselt number and the greatest enhancement percentage was 44% at Rayleigh equal 5*104 while the lowest percentage is 6% for Rayleigh equal106.


2021 ◽  
Vol 43 (4) ◽  
pp. 427-445
Author(s):  
Karolina Pasoń

The article is devoted to the legal situation of a crime victim in the course of executive penal proceedings. The starting point for the considerations was the statement that Goffman’s concept of total institutions and the resulting negative consequences, such as the effects of deculturation or deprivation affecting inmates, are still valid in relation to Polish penitentiary units. It is considered that restorative justice can be an effective instrument for the transition from a total institution to its negation, that is, a permeable institution, especially insofar as it promotes tools for victim and community activation in criminal proceedings. Therefore, the situation of the victim in the current model of executive proceedings was analyzed from the perspective of the possibility of implementing the idea of restorative justice. The subject matter of the article is not limited only to a synthesis of the victim’s rights under the current Executive Penal Code. The provisions normalizing the rights of the victim were analyzed in the context of the whole Code regulation and with reference to the earlier stages of criminal proceedings. In this way a complete and actual picture of the victim’s situation at this stage of criminal proceedings was presented, which was then compared with the standard of restorative justice. The critical analysis made it possible to identify the shortcomings in the current regulation of the victim’s legal situation and to outline the direction in which the legislator should proceed in order to achieve the standard of restorative justice, which will make it possible to increase the permeability of penitentiary units and thus minimize their total character.


2021 ◽  
Vol 43 (4) ◽  
pp. 477-502
Author(s):  
Tomasz Kalisz

This paper discusses the evolution of the position and role of the prosecutor in the course ofshaping the institution of penitentiary supervision. Penitentiary supervision is the process of examining (controlling) the activities of the bodies established to carry out isolation measures, combined with the possibility of assistance, influence and modification of this activity. In the past, the scope of the prosecutor’s influence on the functioning of the broadly understood criminal justice system was much greater. The evolution from prosecutor supervision, through prosecutor–court supervision, to the current model of only judicial supervision, is an interesting example of a clash between two competing participants in criminal proceedings. Judicial penitentiary supervision has turned out to be more effective, and, above all, it is a guarantee of lawful and humane execution of imprisonment and pre-trial detention. The prosecutor’s supervision, especially in the period after the adoption of the 1969 Executive Penal Code, did not enjoy the same prestige as that of a judge. Prosecutors are not an independent body like judges and it was difficult to consider their decisions fully impartial. The study is a historical analysis. The time range is determined by two important normative regulations. The beginning is the decree of the Chief of State of 8 February 1919 on temporary prison regulations, where the term penitentiary supervision (performed only by a prosecutor) appears for the first time in Polish legislation. The closing date is the adoption on 6 June 1997 of the Executive Penal Code, introducing only judicial penitentiary supervision and removing it from the scope of prosecutors’ powers.


2021 ◽  
Vol 24 (7) ◽  
pp. 81-89
Author(s):  
Liudmyla Tarasovych ◽  
Maryna Yaremova

At present, there is a reorientation of the current model of the market economy towards the principles of sustainable development. The process is accompanied by the implication of the marketing concept of managing socio-economic systems, the technology of which provides reasoning of the determined guidelines that must be adhered to. In this context, the coherence of marketing imperatives is a determinant of ensuring the development of socio-economic systems, whereas the marketing-imperative approach should be considered one of the levers of sustainable economic development. Therefore, the purpose of the study is a complex substantiation of the theoretical and methodological content of marketing imperatives, the interpretation of their coherent influence on the management of socio-economic systems. The methodological basis of the study is an integrated combination of general scientific methods of systematic cognition and possibilities of application of specific methodological approaches to solving problems and verification of the formulated study hypothesis; the methods include monographic, hypothetical prediction, abstract-logical, induction and deduction, historical and economic, structural-functional analysis, abstraction and content analysis, construction of concepts and categories, graphical and tabular. The study provides insights into the special features of the evolution of the etymological essence of the imperative in the context of transformations of socio-economic systems; the essence of marketing imperatives in view of marketing ideology is substantiated; the mechanism of transformation of objectives into imperatives in achieving the goal of socio-economic system is developed; the necessity of the implication of the marketing-imperative approach in sustainable economic development is proved. The practical value of the study consists in the scientific substantiation of the theoretical and methodological content of marketing imperatives, the specification of their coherent impact on the management of socio-economic systems. Further studies are aimed at developing criteria for measurement, assessment, and interpretation of the effect after the implementation of marketing imperatives with subsequent testing of results


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