ahmedabdelwahed/Medical_papers_title_and_abstract_NLP_dataset huggingface dataset:
A multiscale integrated analysis of the factors characterizing the sustainability of food systems in Europe

Considering the existing world population, set of environmental impacts, and predicted changes in dietary trends, one can expect that, in the coming decades, food security will remain high on the list of sustainability concerns. In relation to this challenge, Europe's Common Agricultural Policy (CAP) must address a diverse set of goals: (i) guarantee a stable and affordable food supply; (ii) preserve the socioeconomic stability of farmers by guaranteeing their economic viability; (iii) protect the environment by reducing pressures on agroecosystems; and (iv) improve food security by reducing import dependence. Policies related to these diverse goals are likely to generate adverse side-effects. A particularly uncomfortable concern is Europe's massive reliance on imported feed commodities. The European Union (EU) is unlikely to be capable of domestically producing currently imported agricultural commodities and a significant move to internalize imports would dramatically increase pressures on local ecosystems. Faced with that potential predicament, it is essential to have a robust information system capable of simultaneously addressing a variety of policy concerns. In response, this paper presents a novel accounting framework-Multi-Scale Integrated Analysis of Societal and Ecosystem Metabolism (MuSIASEM)- capable of generating an integrated set of indicators entangled across different scales and dimensions of analysis. Our versatile approach establishes a set of quantitative relations between: (i) the dietary intake of the society (desirability of the food supply); (ii) processes under human control (viability of the food system); (iii) processes outside of human control and associated with external biophysical limits determined by embedding ecosystems (feasibility of the food system); and (iv) the dependence on imported products (food security). The analysis of such relations can be tailored to the legitimate perceptions of different social actors affected by policies, anticipating potential conflicts and providing useful information for deliberation and negotiation. Our approach is illustrated with an analysis of the European agricultural system, covering the EU-27 plus the UK and Norway.
Physicochemical, Antibacterial Properties, and Compatibility of ZnO-NP/Chitosan/β-Glycerophosphate Composite Hydrogels

In this study we aimed to develop novel ZnO-NP/chitosan/β-glycerophosphate (ZnO-NP/CS/β-GP) antibacterial hydrogels for biomedical applications. According to the mass fraction ratio of ZnO-NPs to chitosan, mixtures of 1, 3, and 5% ZnO-NPs/CS/β-GP were prepared. Using the test-tube inversion method, scanning electron microscopy and Fourier-transform infrared spectroscopy, the influence of ZnO-NPs on gelation time, chemical composition, and cross-sectional microstructures were evaluated. Adding ZnO-NPs significantly improved the hydrogel's antibacterial activity as determined by bacteriostatic zone and colony counting. The hydrogel's bacteriostatic mechanism was investigated using live/dead fluorescent staining and scanning electron microscopy. In addition, crystal violet staining and MTT assay demonstrated that ZnO-NPs/CS/β-GP exhibited good antibacterial activity in inhibiting the formation of biofilms and eradicating existing biofilms. CCK-8 and live/dead cell staining methods revealed that the cell viability of gingival fibroblasts (L929) cocultured with hydrogel in each group was above 90% after 24, 48, and 72 h. These results suggest that ZnO-NPs improve the temperature sensitivity and bacteriostatic performance of chitosan/β-glycerophosphate (CS/β-GP), which could be injected into the periodontal pocket in solution form and quickly transformed into hydrogel adhesion on the gingiva, allowing for a straightforward and convenient procedure. In conclusion, ZnO-NP/CS/β-GP thermosensitive hydrogels could be expected to be utilized as adjuvant drugs for clinical prevention and treatment of peri-implant inflammation.
Climate impact of an optimised gas treatment on old landfills

It is a well-established fact that the quality and quantity of landfill gas (LFG) start declining after a landfill is closed to further waste intake. Conventional gas treatment and utilisation systems such as flares and gas-driven engines require a certain quality of LFG: specifically, a sufficient methane concentration. Various measures are utilised to maintain the necessary quality of LFG, including a turn-down of gas extraction rates and a shutdown of low-quality gas wells, resulting in a decline of LFG production. This, however, does not have to be the case. The low calorific value (LCV) LFG capture and treatment technology developed by e-flox and referred to in this article as 'LCV LFG System' can significantly increase the collection rate and the amount of treated methane in an old landfill. This article introduces such new treatment measures, describes gas capture calculation methodologies and presents actual results based on a medium-sized landfill in Germany. The study demonstrates, among other things, that the LCV LFG system can reduce the CO2 avoidance costs to roughly 10 €/tCO2eq. We present this new technology as a quick and straightforward measure of dealing with the climate issues related to methane emissions of old landfills.
Water-energy nexus: Floating photovoltaic systems promoting water security and energy generation in the semiarid region of Brazil

Floating photovoltaic systems could be used to mitigate water supply issues by reducing the evaporation rate of water bodies such as weirs. This paper aims to estimate the potential evaporation prevented and the potential electrical energy generated by the installation of floating photovoltaic systems in specific weirs of the Brazilian semiarid region. Moreover, an economic feasibility analysis is carried out regarding energy and water supply. A net present value approach was used to conduct this analysis. The software System Advisor Model was employed to simulate and compare the performance of two photovoltaic systems in the region: floating and ground-mounted. Three scenarios of the surface cover are considered for the weirs: 1) the average area occupied by dead storage of all weirs; 2) 50% of the total area of weirs; 3) 70% of the total area of weirs. Results show that the installation of floating photovoltaic systems over weirs of the Apodi/Mossoro basin would potentially preserve 20.6 Mm(3) of water in scenario 1, 83.3 Mm(3) in 2 and 124.3 Mm(3) in 3. The annual electricity generation estimated in scenarios 1, 2, and 3 is 2.3 TWh, 8.6 TWh, and 12 TWh, respectively. Financial results show that when energy and water cash flows are considered together, payback time diminishes, and the project becomes more economically feasible. (C) 2020 Elsevier Ltd. All rights reserved.
Toxicokinetic of cyphenothrin in rabbits

Type II pyrethroids, including cyphenothrin, have a wider efficacy and spectrum of action because they have a killing effect rather than a knockdown effect on pests. For this reason, they are among the most widely used pyrethroid groups today. In addition, this group also has repellent activity. Thus, cyphenothrin is a commonly used pyrethroid, which poses an exposure/toxicity risk for living organisms. Toxicokinetic studies have an important place in predicting the toxicity risks of compounds and evaluating viable treatment options. In this study, the toxicokinetics of cyphenothrin were investigated in rabbits. The animal material of the study comprised 6-month-old female 14 New Zealand rabbits, each weighing 2-2.5 kg. The animals were randomly assigned to two groups, each of 7 animals. The rabbits in group 1 were administered a single dose of 2.5 mg/kg bw cyphenothrin in dimethyl sulfoxide as an intravenous bolus, while the rabbits in group 2 were administered a single dose of 2.5 mg/kg bw cyphenothrin in the same vehicle as an oral bolus. Following the administration of cyphenothrin, blood samples were taken at certain intervals from the auricular vein into heparinized tubes. Plasma cyphenothrin levels were determined by gas chromatography, using a capillary column and a micro-electron capture detector. For orally administered cyphenothrin, the plasma maximum concentration (Cmax), time to reach the maximum value (tmax), half-life (t1/2β), mean residence time (MRT), area under the curve (AUC0→∞), and bioavailability (F) values were determined as 172.28 ± 47.30 ng/ml, 1.07 ± 0.42 h, 12.95 ± 1.11 h, 17.79 ± 1.69 h, 2220.07 ± 572.02 ng/h/ml, and 29.50%, respectively. For intravenous cyphenothrin, the t1/2β, MRT and AUC0→∞ values were ascertained as 7.66 ± 0.74 h, 9.28 ± 0.62 h, and 7524.31 ± 2988.44 ng/h/ml, respectively. Although the bioavailability of cyphenothrin was limited when taken orally, its half-life and mean residence time in the body were found to be long. This suggests that high doses of this pesticide may pose a poisoning risk.
Analysis of Consumers' Willingness to Pay for Organic and Local Honey in Serbia

In times of increased concern for human health and care for the environment, it is important to investigate the consumer behavior models in order to better manage the product supply. From the perspective of our research, it is important to learn about consumer attitudes, of a specific product, such as honey, so as to potentially strengthen the economic position of honey producers. The purpose of this article was to explore the consumers' perceptions of organic and local honey in the Republic of Serbia and identify factors that contribute to predicting consumers' willingness to pay (WTP) for organic and local honey. The ordinal regression was used to determine which factors influence the WTP for organic and local honey, and the findings show that the consumers were WTP more for organic honey than for local honey. Socio-economic characteristics of respondents and honey attributes affect consumers' WTP. The higher monthly household income positively influences the WTP for organic honey, while on the other hand, the higher level of education has a positive influence on the WTP for local honey. The WTP for organic honey positively affected by the perceived importance of honey attributes, such as food safety and support for the local community. The frequency of the purchase of the local honey, the recommendations for the local honey purchase and the perceived importance of attributes, such as the care for the environment and nutritional properties, have a positive influence on the consumers' WTP for local honey. From this, we can conclude that our understanding of all the factors that influence a consumer's decision to allocate budget expenses for honey can help all stakeholders in creating an adequate pricing and promotional strategy for honey products.
How surfactants affect the depuration of polycyclic aromatic hydrocarbons adsorbed on the mangrove leaf surfaces: insight from an in situ method

The effects of sodium dodecyl benzene sulfonate (SDBS), polyoxyethylene (20) sorbitan monolaurate (Tween 20), and their mixtures on the depuration of anthracene (Ant) and fluoranthene (Fla) individually adsorbed on the Kandelia obovata (Ko) leaf surfaces were in situ investigated. The Ko original leaf-wax microstructures have been destroyed by SDBS, Tween 20, and their mixtures at or above their critical micelle concentration (CMC). The volatilization rate constants (kV) of the adsorbed PAHs decreased with surfactants at or above their CMC resulting from the plasticizing effect and a decrease in the polarity of the Ko leaf-waxes induced by surfactants. Moreover, the photolysis rate constants (kP) of the adsorbed PAHs decreased with SDBS while increased with Tween 20 and their mixtures at or above their CMC, which can be attributed to effects of surfactants on the light adsorption behavior of Ko leaf-waxes. Overall, the effects of surfactants on the depuration of the adsorbed PAHs were dependent not only on the physical-chemical properties of surfactants but also on the micro-environment of the substrates adsorbed the PAHs. These results are of great significance for further understanding the accumulation of PAHs and could expand our knowledge about the migration mechanism of PAHs from the atmosphere by mangrove leaf surface micro-zones.
Risk assessment and genetic counseling for Lynch syndrome - Practice resource of the National Society of Genetic Counselors and the Collaborative Group of the Americas on Inherited Gastrointestinal Cancer

Identifying individuals who have Lynch syndrome involves a complex diagnostic workup that includes taking a detailed family history and a combination of various tests such as immunohistochemistry and/or molecular which may be germline and/or somatic. The National Society of Genetic Counselors and the Collaborative Group of the Americas on Inherited Gastrointestinal Cancer have come together to publish this practice resource for the evaluation of Lynch syndrome. The purpose of this practice resource was to provide guidance and a testing algorithm for Lynch syndrome as well as recommendations on when to offer testing. This practice resource does not replace a consultation with a genetics professional. This practice resource includes explanations in support of this and a summary of background data. While this practice resource is not intended to serve as a review of Lynch syndrome, it includes a discussion of background information and cites a number of key publications which should be reviewed for a more in-depth understanding. This practice resource is intended for genetic counselors, geneticists, gastroenterologists, surgeons, medical oncologists, obstetricians and gynecologists, nurses, and other healthcare providers who evaluate patients for Lynch syndrome.
Techno-economic and environmental assessment of the main biogas upgrading technologies

Five biogas-to-biomethane upgrading technologies were compared from the environmental and economic points of view: High-Pressure Water Scrubbing (HPWS), Amine Scrubbing (AS), Potassium Carbonate Scrubbing (PCS), Pressure Swing Adsorption (PSA) and Membrane Permeation (MP). Life Cycle Assessment (LCA) and Life Cycle Costing (LCC) methods were used for the comparison. In order to provide a wider picture of the conversion system and its impacts, the biogas production processes, starting from source sorted organic fraction of municipal solid waste, were included. The intention was to maintain the same object for the LCA and the LCC, given that the cost of biogas production had to be included for the calculation of the economic indicators. The cost analysis included also the evaluation of the external costs, derived from the monetization of the air emissions of the systems. The selected functional unit was the upgrading of 1 Nm(3) of raw biogas. Data were collected directly from companies providing upgrading plants and confirmed by literature review. A biogas-to-biomethane plant proved to have environmental and economic benefits and, as expected, for larger plant sizes the economic performances improved. AS showed the best environmental performances mainly due to its limited CH4 losses and lower electricity consumption. Considering the contribution from only the upgrading part, AS showed the lowest impacts for the global warming potential (GWP) indicator (respectively 13%, 1%, 23% and 3% less than HPWS, PCS, PSA and MP). However, the results changed for other impact categories: for human toxicity indicator PSA showed lower impacts compared to the other technologies, respectively 7%, 144%, 1% and 9% less compared to HPWS, AS, PCS and MP. For small size plants, HPWS proved to be slightly more cost-effective compared to other technologies. For large size plants, PCS showed the highest net present value. Moreover, the sensitivity analysis showed that the electricity consumption is a key parameter for the economic and environmental results. Its variation proved that for the 60% of cases AS was the best solution in terms of GWP, however 35% and 5% of cases respectively indicated that PCS and MP had the lowest GWP. (C) 2020 Elsevier Ltd. All rights reserved.
Carbon emissions and environmental management based on Big Data and Streaming Data: A bibliometric analysis

Climate change and environmental management are issues of global concern. The advent of the era of Big Data has created a new research platform for the assessment of environmental governance and policies. However, little is known about Big Data application to climate change and environmental management research. This paper adopts bibliometric analysis in conjunction with network analysis to systematically evaluate the publications on carbon emissions and environmental management based on Big Data and Streaming Data using R package and VOSviewer software. The analysis involves 274 articles after rigorous screening and includes citation analysis, co-citation analysis, and co-word analysis. Main findings include (1) Carbon emissions and environmental management based on big data and streaming data is an emerging multidisciplinary research topic, which has been applied in the fields of computer science, supply chain design, transportation, carbon price assessment, environmental policy evaluation, and CO2 emissions reduction. (2) This field has attracted the attention of nations which are major contributors to the world economy. In particular, European and American scholars have made the main contributions to this topic, and Chinese researchers have also had great impact. (3) The research content of this topic is primarily divided into four categories, including empirical studies of specific industries, air pollution governance, technological innovation, and low-carbon transportation. Our findings suggest that future research should bring greater depth of practical and modeling analysis to environmental policy assessment based on Big Data.
Cybersyn, big data, variety engineering and governance

This contribution offers reflections about Chilean Cybersyn, 50 years ago. In recent years, Cybersyn, has received significant attention. It was the brainchild of Stafford Beer, who conceived it to support the transformation of the Chilean economy from its bureaucratic history to hopefully create a vibrant and modern society, driven by cybernetic tools. These aspects have received much attention in recent times; however, in this contribution, I want to discuss how working in Cybersyn influenced my work after the coup of 1973. Perhaps, for me, its major influence was in the management of complexity, through what I refer here as variety engineering and through the Viable System Model VSM as a paradigm to the management of relationships with implications to enterprises, society and the economy. After the 1973 coup major interest was in technological aspects of Cybersyn such as real-time management and its contribution to decision support and executive information systems. In the late 70s I was personally influenced by information management, but by the early 1980s my work moved towards methodological aspects of how to use the VSM. By 1989 I had created the VIPLAN method (Espejo, 1989). Key questions I attempted to answer were, how to model the complexity of enterprises and their interactions with environmental agents. Later on, in the 1990s and 2000s, the main direction of my work was epistemological, ontological and methodological towards second-order cybernetics and relationships. Only in recent decades the political transformations proposed by Cybersyn have captured the imagination of many commentators. The confluence of social and cultural changes with information technology, data models, artificial intelligence, algorithms and several additional technological developments have challenged the excesses of capitalism, particularly after the banking crisis of 2008-2009. The purpose in this paper is discussing this evolution in the light of those early days in Chile.
Does carbon dioxide, methane, nitrous oxide, and GHG emissions influence the agriculture? Evidence from China

Carbon dioxide emission and greenhouse gas emissions are considered core issue in the world that influence agricultural production and also cause climate change. The present study seeks to investigate the linkage of methane emissions, nitrous oxide emissions, carbon dioxide emission, and greenhouse gas emissions with agricultural gross domestic product in China. The long-term association was checked by using an autoregressive distributed lag (ARDL) bounds testing approach, fully modified least squares method, and canonical cointegrating regression analysis. The results from long-run analysis exposed that carbon dioxide emission and greenhouse gas emissions have positive coefficients that demonstrate the long-run linkage with the agricultural gross domestic product having p values of 0.5709 and 0.3751, respectively. Similarly, results also revealed that agricultural methane emissions and agricultural nitrous oxide emissions have a negative association with the agricultural gross domestic product having p values of 0.1737 and 0.0559. China is a huge emitter of CO2 emission and greenhouse gas emissions. Possible conservative policies are required to form the Chinese government to tackle this challenge to decrease CO2 emission in order to increase agricultural production.
Curative resection of ureteral metastasis of rectal cancer: a case report and review of literature

The metastasis to the ureter in colorectal cancer had been recognized at the stage of an autopsy. These days, according to the progression of diagnostic modalities, a few cases of long-time survival after curative surgery of metastatic ureteral tumor of colorectal cancer were reported. We present a case of a metastatic ureteral tumor of rectal cancer who had 32 months of recurrence-free survival after extirpation. After preoperative chemoradiotherapy, a 47-year-old man underwent laparoscopic low anterior resection and left unilateral pelvic node dissection for lower rectal cancer. He underwent several metastasectomies for recurrent tumors in the liver and lung. At the 42nd postoperative month, a contrast-enhanced CT scan showed thickening of the ureteral wall and left hydronephrosis. Transureteroscopic biopsy revealed metastatic adenocarcinoma of rectal cancer. At the 52nd postoperative month, partial ureteral resection and vesicoureteral neo-anastomosis were performed after confirming negative resection margin with rapid intraoperative pathology. He has 32 months of recurrence-free survival after metastasectomy of the left ureter. We review the literature presenting surgery of the metastatic ureteral tumor of colorectal cancer. Although it is a rare recurrence pattern, curative resection of ureteral metastasis might provide a possibility of long-time recurrence-free survival in such patients.
Economic, energy and environmental impact of coal-to-electricity policy in China: A dynamic recursive CGE study

In north China, many rural and urban residents still use coal for heating in winter. However, such method would result in a large amount of GHG emissions. China intends to change the heating method of its citizens from coal burning to electric heating to save energy, reduce emissions, which is called the project of Coal to Electricity (CtE). A dynamic recursive computable general equilibrium model is applied to analyze the real effect if the project is widely promoted in China. We found that CtE project is effective in reducing SO2 and NOx emission than CO2 emissions. In essence, energy substitution is not energy-saving, so the contribution to CO2 reduction of CtE project is limited. There is a certain co-benefit between CtE project and other energy saving policies (new energy generation, improving heating efficiency and building energy saving etc.). The findings indicate that single CtE policy can only bring better air quality. However, with other energy saving policies, CtE project can not only bring NOx and SO2 reduction, but also lead to less CO2 emissions and more convenient life. Multiple emission reduction measures are suggested to maximize the reduction effects of these policies. (C) 2019 Elsevier B.V. All rights reserved.