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Natural Drivers of Global Warming:Ocean Cycles,Anthropogenic Greenhouse Gases and the Question of Percentages
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作者 Peter J.Taylor 《Journal of Environmental & Earth Sciences》 2025年第2期262-290,共29页
There is a widespread policy assumption that anthropogenic greenhouse gases are the main driver of the observed 1°C rise in global surface air temperatures since‘pre-industrial’times.This paper demonstrates tha... There is a widespread policy assumption that anthropogenic greenhouse gases are the main driver of the observed 1°C rise in global surface air temperatures since‘pre-industrial’times.This paper demonstrates that the onset of the current warming trend began in the mid-19th century and is consistent with the rising phase of variable global warming and cooling cycles in both the Northern and Southern Hemispheres.Hemispheres.The last trough of the millennial cycle,the Little Ice Age,coincides approximately with the baseline of pre-industrial times used to calculate the impact of Anthropogenic Global Warming.Yet,half of the observed 20th century temperature rise occurred before 1950 when carbon dioxide levels remained low,with the remaining half happening at a similar rate of warming despite the much higher concentrations of greenhouse gases in the atmosphere.This study shows that when the amplitudes and rates of change of the long-term global cycles are considered,the anthropogenic component of warming can be reduced to 38%(using factors derived from the latest IPCC Working Group reports)to as little as 25%(using observational flux data of dominant Short Wave Absorbed Surface Radiation).These global climate cycles can be extrapolated into the future and the implications for policy of a large natural component to climate change are explored—in particular,the potential for mitigation strategies to have minimal impact and for the climate to cool consequent upon a cyclic down-phase. 展开更多
关键词 Global Warming Ocean Oscillations Natural Cycles Environmental Policy
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Greenhouse Gas Payback of a Solar Photovoltaic System in Northeast Brazil: Effects of the Application of a Solar Coating
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作者 Luiz Felipe Souza Fonseca Heitor do Nascimento Andrade +4 位作者 João Marcelo Fernandes Gualberto de Galiza Raphael Abrahão Hamid Boleydei Silvia Guillén-Lambea Monica Carvalho 《Energy Engineering》 2025年第8期3265-3283,共19页
The application of different coatings on solar photovoltaic(PV)panels can be an efficient solution to increase performance and further mitigate the emission of greenhouse gases.This study uses the Life Cycle Assessmen... The application of different coatings on solar photovoltaic(PV)panels can be an efficient solution to increase performance and further mitigate the emission of greenhouse gases.This study uses the Life Cycle Assessment(LCA)methodology and the environmental payback concept to analyze the effects of the application of a nano-silica coating on a solar PV system installed in the Brazilian Northeast.Firstly,an uncoated reference 16.4 MW PV system is designed,and the detailed inventory is presented(PV panels,supporting structure,inverters,junction boxes,cables,transportation,maintenance and operation-including the replacement of equipment).The results of the LCA quantify the greenhouse gas emissions associated with the PV system.Electricity production is estimated by technical and local climate data.Subsequently,the environmental payback time of the system is calculated,which is the time required for the PV system to offset the emissions associated with system manufacturing,operation,and disposal.This is the first Brazilian study to verify the effects of a self-cleaning coating on a solar PV system throughout its lifetime,compared to the uncoated(reference system).The original photovoltaic system emitted 22,534,773 kg CO_(2)-eq,with an environmental payback of 5 years and 1 day.When the self-cleaning coating is applied,the emissions are 21,511,317 kg CO_(2)-eq(almost 5%lower)with a payback of 4 years,1 month and 26 days.The application of self-cleaning coatings reduces the required area for installation(due to increased efficiency),and not only reduces emissions but is also aligned with global sustainability targets and contributes to the concept of sustainable and intelligent cities. 展开更多
关键词 Photovoltaic energy environmental impacts greenhouse gas emissions life cycle assessment carbon footprint
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Apoptosis block as a barrier to effective therapy in non small cell lung cancer 被引量:7
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作者 Ian Paul J Mark Jones 《World Journal of Clinical Oncology》 CAS 2014年第4期588-594,共7页
Lung cancer, is the most common cause of cancer death in men and second only to breast cancer in women. Currently, the first line therapy of choice is platinumbased combination chemotherapy. A therapeutic plateau has ... Lung cancer, is the most common cause of cancer death in men and second only to breast cancer in women. Currently, the first line therapy of choice is platinumbased combination chemotherapy. A therapeutic plateau has been reached with the prognosis for patients with advanced non-small cell lung cancer(NSCLC) remaining poor. New biomarkers of prognosis as well as new therapies focusing on molecular targets are emerging helping to identify patients who are likely to benefit from therapy. Despite this, drug resistance remains the major cause for treatment failure. In this article we review the role of apoptosis in mediating drug resistance in NSCLC. Better understanding of this fundamental biological process may provide a rationale for overcoming the current therapeutic plateau. 展开更多
关键词 APOPTOSIS Lung cancer ADJUVANT THERAPY MITOCHONDRIA BAX BAK BCL2
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Evaluating the global thiols redox state in living cells using a reducing sulfur species responsive fiuorescence switching platform
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作者 Hui Zhang Rong Feng +10 位作者 Wanyi Yu Hongbei Wei Tianhong Wu Peng Zhang Wenhai Bian Xin Li Di Gao Guojun Weng Zhe Yang Tony D.James Xiaolong Sun 《Chinese Chemical Letters》 2025年第4期338-344,共7页
Redox dyshomeostasis is a critical factor in the initiation of numerous diseases,making the accurate evaluation of the redox status of the cellular environment an important aspect of physiological research.However,mai... Redox dyshomeostasis is a critical factor in the initiation of numerous diseases,making the accurate evaluation of the redox status of the cellular environment an important aspect of physiological research.However,maintaining redox homeostasis relies on a complex and dynamic physiological system involving multiple substrate-enzyme interactions,so its accurately detection remains a challenge.With this research,we developed an activable fiuorescence switching platform by incorporating different conjugate acceptors to a fiuorophore using ester bonds and resulting in fiuorescence quenching due to donor-excited photo-induced electron transfer(d-Pe T),which was confirmed through density functional theory calculations.The reaction-based probe was deployed for recognizing all major intracellular reducing sulfur species(RSS),including H_(2)S,cysteine(Cys),homocysteine(Hcy),glutathione(GSH),and protein free thiols.The quenched fiuorescence was significantly recovered by RSS,through releasing the fiuorophore and diminishing the d-Pe T effect.Furthermore,the fiuorescent probe was used for the sensing and imaging RSS in living cells,demonstrating good cell-permeability,low cytotoxicity,and negative correlation with reactive oxygen species content,enabling the evaluating of global thiols redox state in Hep G2 cellular lines during ferroptosis processes. 展开更多
关键词 Fluorescent probe Reducing sulfur species Donor-excited photo-induced electron transfer Thiols redox state Ferroptosis
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Have patients with esophagitis got an increased risk of adenocarcinoma? Results from a population-based study 被引量:4
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作者 Seamus J Murphy Lesley A Anderson +4 位作者 Brian T Johnston Deirdre A Fitzpatrick Peter RG Watson Pauline Monaghan Liam J Murray 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第46期7290-7295,共6页
AIM: To examine an increased risk of esophageal adenocarcinoma is restricted to patients who develop Barrett's esophagus or whether esophagitis per se is a risk factor for adenocarcinoma.METHODS: A population-base... AIM: To examine an increased risk of esophageal adenocarcinoma is restricted to patients who develop Barrett's esophagus or whether esophagitis per se is a risk factor for adenocarcinoma.METHODS: A population-based cohort of patients with histological evidence of esophagitis without Barrett's esophagus was constructed using electronic pathology reports relating to all esophageal biopsies in Northern Ireland between 1993 and 1996. Person-years of followup and incident cases of esophageal cancer were calculated by linking the cohort to death files and the Northern Ireland Cancer Registry records. Standardized incidence ratios (SIR) were calculated for esophageal cancers (adenocarcinoma, squamous cell carcinoma (SCC), and histologically unspecified cancers).RESULTS: A total of 2 013 patients in the cohort provided 13 559 patient-years of follow-up (mean follow-up 6.7 years). None of the patients developed adenocarcinoma. Three patients developed SCC, and six developed histologically unspecified cancers. The SIR for all esophageal cancers and for SCC were 2.73 (95%CI 1.25-5.19) and 2.93 (95%CI 0.61-8.59), respectively. In a sensitivity analysis in which all unspecified esophageal cancers were treated as adenocarcinomas, the SIR for adenocarcinoma was 2.64 (0.97-5.75).CONCLUSION: The risk of adenocarcinoma is not elevated in patients with histological evidence of esophagitis without Barrett's esophagus; however, these patients may have a moderately increased risk of SCC.Further studies are required to confirm these findings,which suggest that Barrett's esophagus, not esophagitis,is the key precursor lesion in the development of adenocarcinoma. 展开更多
关键词 Barrett's esophagus Esophageal adenocardnoma Esophageal squamous cell carcinoma ESOPHAGITIS Population-based study
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Eco-Friendly Particleboards Produced with Banana Tree(Musa paradisiaca)Pseudostem Fibers Bonded with Cassava Starch and Urea-Formaldehyde Adhesives
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作者 Prosper Mensah Rafael Rodolfode Melo +3 位作者 Edgley Alves de Oliveira Paula Alexandre Santos Pimenta Julianade Moura Fernando Rusch 《Journal of Renewable Materials》 2025年第7期1475-1489,共15页
The increase in wood and wood-based products in the construction and furniture sectors has grown exponentially,generating severe environmental and socioeconomic impacts.Particleboard panels have been the main cost-ben... The increase in wood and wood-based products in the construction and furniture sectors has grown exponentially,generating severe environmental and socioeconomic impacts.Particleboard panels have been the main cost-benefit option on the market due to their lightness and lower cost compared to solid wood.However,the synthetic adhesives used in producing traditional particleboard panels cause serious harm to human health.Developing particleboard panels with fibrous waste and natural adhesives could be a sustainable alternative for these sectors.The work aimed to create particleboards with fibrous wastes from the pseudostem of the banana tree(Musa paradisiaca)and different proportions of the natural adhesive cassava starch-CS in replacement of synthetic adhesive urea-formaldehyde-UF.Five experimental groups were manufactured with banana trees and different percentages of UF and CS adhesives,namely(100UF–0%CS),(50%UF–50%CS),(30%UF–70%CS),(10%UF–90%CS)and(0%UF–100%CS).The particleboards had their physical-mechanical properties determined.The apparent density values did not show significant variation between the assessed treatments.Regarding the water absorption and thickness swelling,the best performances were observed for the panels made without the addition of CS(100%UF).For the mechanical properties of static bending strength and Janka hardness,it was identified that adding up to 50%CS did not interfere with the quality of the panels.These analyses show that the particleboard panels produced with wastes of the banana tree bonded with natural CS adhesivemay be an economically viable and environmentally correct alternative,positively strengthening the development of sustainable strategies. 展开更多
关键词 Plant fibers vegetable waste harnessing bioadhesives physical and technological properties sustainable development
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Slab rollback and microcontinent subduction in the evolution of the Zambales Ophiolite Complex(Philippines):A review 被引量:2
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作者 Graciano P.Yumul Jr. Carla B.Dimalanta +11 位作者 Ricky C.Salapare Karlo L.Queano Decibel V.Faustino-Eslava Edanjarlo J.Marquez Noelynna T.Ramos Betchaida D.Payot Juan Miguel R.Guotana Jillian Aira S.Gabo-Ratio Leo T.Armada Jenielyn T.Padrones Keisuke Ishida Shigeyuki Suzuki 《Geoscience Frontiers》 SCIE CAS CSCD 2020年第1期23-36,共14页
New radiolarian ages show that the island arc-related Acoje block of the Zambales Ophiolite Complex is possibly of Late Jurassic to Early Cretaceous age.Radiometric dating of its plutonic and volcanichypabyssal rocks ... New radiolarian ages show that the island arc-related Acoje block of the Zambales Ophiolite Complex is possibly of Late Jurassic to Early Cretaceous age.Radiometric dating of its plutonic and volcanichypabyssal rocks yielded middle Eocene ages.On the other hand,the paleontological dating of the sedimentary carapace of the transitional mid-ocean ridge-island arc affiliated Coto block of the ophiolite complex,together with isotopic age datings of its dikes and mafic cumulate rocks,also yielded Eocene ages.This offers the possibility that the Zambales Ophiolite Complex could have:(1)evolved from a Mesozoic arc(Acoje block)that split to form a Cenozoic back-arc basin(Coto block),(2)through faulting,structurally juxtaposed a Mesozoic oceanic crust with a younger Cenozoic lithospheric fragment or(3)through the interplay of slab rollback,slab break-off and,at a later time,collision with a microcontinent fragment,caused the formation of an island arc-related ophiolite block(Acoje)that migrated trench-ward resulting into the generation of a back-arc basin(Coto block)with a limited subduction signature.This Meso-Cenozoic ophiolite complex is compared with the other oceanic lithosphere fragments along the western seaboard of the Philippines in the context of their evolution in terms of their recognized environments of generation. 展开更多
关键词 OPHIOLITE Slab rollback RADIOLARIANS SUBDUCTION Zambales Philippines
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Urban forest loss using a GIS-based approach and instruments for integrated urban planning:A case study of Jo?o Pessoa,Brazil
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作者 Leandro Ismael de Azevedo LACERDA JoséAugusto Ribeiro da SILVEIRA +5 位作者 Celso Augusto Guimarães SANTOS Richarde Marques da SILVA Alexandro Medeiros SILVA Thiago Victor Medeiros do NASCIMENTO Edson Leite RIBEIRO Paulo Vitor Nascimento de FREITAS 《Journal of Geographical Sciences》 SCIE CSCD 2021年第10期1529-1552,共24页
Urban forests play an important role in the thermal comfort and overall life of local populations in large-and medium-sized cities.This study analyzes urban forest loss and maps land use and land cover(LULC)changes be... Urban forests play an important role in the thermal comfort and overall life of local populations in large-and medium-sized cities.This study analyzes urban forest loss and maps land use and land cover(LULC)changes between 1991 and 2018 by evaluating the use of urban planning instruments for the mitigation of urban forest loss in Jo?o Pessoa,Brazil.For this purpose,satellite-derived LULC images from 1991,2006,2010 and 2018 and data on urban forest loss areas obtained using the Google Earth Engine were used.In addition,this paper also discusses the instruments used for integrated urban planning,which are(a)the legal sector,responsibility and nature;(b)the urban expansion process;and(c)the elements of urban infrastructure.The results show a clear shift in land use in the study area.The major changes in LULC classes occurred in urban areas and herbaceous vegetation,while the greatest loss was in arboreal/shrub vegetation.Thus,an increase in the pressure to occupy zones intended for environmental preservation could be estimated.Our results showed similar accuracies with other studies and more spatial details.The characteristics of the patterns,traces,and hotspots of urban expansion and forest cover loss were explored.We highlighted the potential use of this proposed framework to be applied and validated in other parts of the world to help better understand and quantify various aspects of urban-related problems such as urban forest loss mapping using instruments for integrated urban planning and low-cost approaches. 展开更多
关键词 integrated planning mapping thematic synthesis urban afforestation urban planning
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Morphological disruption and visual tuning alterations in the primary visual cortex in glaucoma(DBA/2J)mice 被引量:1
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作者 Yin Yang Zhaoxi Yang +9 位作者 Maoxia Lv Ang Jia Junjun Li Baitao Liao Jing’an Chen Zhengzheng Wu Yi Shi Yang Xia Dezhong Yao Ke Chen 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第1期220-225,共6页
Glaucoma is a leading cause of irreve rsible blindness wo rldwide,and previous studies have shown that,in addition to affecting the eyes,it also causes abnormalities in the brain.However,it is not yet clear how the pr... Glaucoma is a leading cause of irreve rsible blindness wo rldwide,and previous studies have shown that,in addition to affecting the eyes,it also causes abnormalities in the brain.However,it is not yet clear how the primary visual cortex(V1)is altered in glaucoma.This study used DBA/2J mice as a model for spontaneous secondary glaucoma.The aim of the study was to compare the electrophysiological and histomorphological chara cteristics of neurons in the V1between 9-month-old DBA/2J mice and age-matched C57BL/6J mice.We conducted single-unit recordings in the V1 of light-anesthetized mice to measure the visually induced responses,including single-unit spiking and gamma band oscillations.The morphology of layerⅡ/Ⅲneurons was determined by neuronal nuclear antigen staining and Nissl staining of brain tissue sections.Eighty-seven neurons from eight DBA/2J mice and eighty-one neurons from eight C57BL/6J mice were examined.Compared with the C57BL/6J group,V1 neurons in the DBA/2J group exhibited weaker visual tuning and impaired spatial summation.Moreove r,fewer neuro ns were observed in the V1 of DBA/2J mice compared with C57BL/6J mice.These findings suggest that DBA/2J mice have fewer neurons in the VI compared with C57BL/6J mice,and that these neurons have impaired visual tuning.Our findings provide a better understanding of the pathological changes that occur in V1 neuron function and morphology in the DBA/2J mouse model.This study might offer some innovative perspectives regarding the treatment of glaucoma. 展开更多
关键词 DBA/2J DEGENERATION gamma band oscillations GLAUCOMA primary visual cortex(V1) RETINA single-unit recording tuning curve
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Global and Regional Surface Nitrogen Balances in Intensive Agricultural Production Systems for the Period 1970-2030 被引量:17
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作者 A. F. BOUWMAN G.Van DRECHT K. W. Van der HOEK 《Pedosphere》 SCIE CAS CSCD 2005年第2期137-155,共19页
Global nitrogen (N) budgets for intensive agricultural systems were compiled for a 0.5 by 0.5 degree resolution. These budgets include N inputs (N fertilizer, animal manure, biological N fixation and atmospheric N dep... Global nitrogen (N) budgets for intensive agricultural systems were compiled for a 0.5 by 0.5 degree resolution. These budgets include N inputs (N fertilizer, animal manure, biological N fixation and atmospheric N deposition) and outputs (N removal from the field in harvested crops and grass and grass consumption by grazing animals, ammonia volatilization,denitrification and leaching). Data for the historical years 1970 and 1995 and a projection for 2030 were used to study changes in the recovery of N and the different loss terms for intensive agricultural systems. The results indicate that the overall system N recovery and fertilizer use efficiency slowly increased in the industrialized countries between 1970 and 1995, the values for developing countries have decreased in the same period. For the coming three decades our results indicate a rapid increase in both the industrialized and developing countries. High values of > 80% for fertilizer use efficiency may be related to surface N balance deficits, implying a depletion of soil N and loss of soil fertility. The projected intensification in most developing countries will cause a gradual shift from deficits to surpluses in the coming decades.The projected fast growth of crop and livestock production, and intensification and associated increase in fertilizer inputs will cause a major increase in the surface N balance surplus in the coming three decades. This implies increasing losses of N compounds to air (ammonia, nitrous oxide and nitric oxide), and groundwater and surface water (nitrate). 展开更多
关键词 animal manure FERTILIZER intensive agriculture nitrogen surface balance
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Potential role of Limosilactobacillus fermentum as a probiotic with anti-diabetic properties: A review 被引量:3
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作者 Diego Cabral Lacerda Paulo César Trindade da Costa +5 位作者 Paula Brielle Pontes Lucas Alves Carneiro dos Santos JoséPatrocínio Ribeiro Cruz Neto Cristiane Cosmo Silva Luis Vanessa Polyana de Sousa Brito JoséLuiz de Brito Alves 《World Journal of Diabetes》 SCIE 2022年第9期717-728,共12页
Oxidative stress,inflammation,and gut microbiota impairments have been implicated in the development and maintenance of diabetes mellitus.Strategies capable of recovering the community of commensal gut microbiota and ... Oxidative stress,inflammation,and gut microbiota impairments have been implicated in the development and maintenance of diabetes mellitus.Strategies capable of recovering the community of commensal gut microbiota and controlling diabetes mellitus have increased in recent years.Some lactobacilli strains have an antioxidant and anti-inflammatory system capable of protecting against oxidative stress,inflammation,and diabetes mellitus.Experimental studies and some clinical trials have demonstrated that Limosilactobacillus fermentum strains can beneficially modulate the host antioxidant and anti-inflammatory system,resulting in the amelioration of glucose homeostasis in diabetic conditions.This review presents and discusses the currently available studies on the identification of Limosilactobacillus fermentum strains with anti-diabetic properties,their sources,range of dosage,and the intervention time in experiments with animals and clinical trials.This review strives to serve as a relevant and well-cataloged reference of Limosilactobacillus fermentum strains capable of inducing anti-diabetic effects and promoting health benefits. 展开更多
关键词 Diabetes Mellitus Gut dysbiosis Oxidative stress PROBIOTICS Limosilactobacillus fermentum
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Amphibians and Reptiles of Luzon Island, Philippines: the Herpetofauna of Pantabangan-Carranglan Watershed, Nueva Ecija Province, Caraballo Mountain Range 被引量:3
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作者 Paul Henric P. GOJO CRUZ Leticia E.AFUANG +1 位作者 Juan Carlos T. GONZALEZ William SM.GRUEZO 《Asian Herpetological Research》 SCIE CSCD 2018年第4期201-223,共23页
We present detailed species accounts for fifty-nine(59) species of amphibians and reptiles(17 frogs, 14 skinks, 3 agamids, 6 gekkonid lizards, 2 varanids, and 17 snakes) from Pantabangan-Carranglan Watershed, which li... We present detailed species accounts for fifty-nine(59) species of amphibians and reptiles(17 frogs, 14 skinks, 3 agamids, 6 gekkonid lizards, 2 varanids, and 17 snakes) from Pantabangan-Carranglan Watershed, which lies within the Caraballo Mountain Range, whose biota is poorly-known. This was also the first extensive survey of herpetofauna within the watershed. Together with data from previous literature reviews, our records bring the total number of species of amphibians and reptiles for the Caraballo Mountain Range to 66. Forty-two(42) species from the area were Philippine endemics, with 25 species recorded only from Luzon faunal region. Seven species of herpetofauna are associated with unresolved taxonomic issues(new species and species complexes needing taxonomic partitioning, e.g. splitting of species groups). Two species recorded from the area were rarely represented in museum collections. Major distributional and elevational range extensions were recorded for several species. Comparison with Luzon’s other mountain ranges showed that the Caraballo Mountain Range is similar, in terms of species composition, to the northern Sierra Madre and Cordillera Mountain Ranges. The result of this survey showed the Caraballo Mountain Range and its mountains as a possible new center of herpetofaunal diversity and endemicity within Luzon. The importance of the Caraballo Mountain Range as an important biogeographic link merits further study. 展开更多
关键词 Caraballo mountain range diversity ecology HABITAT HERPETOFAUNA
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Diet and intestinal bacterial overgrowth: Is there evidence? 被引量:2
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作者 Claudineia Souza Raquel Rocha Helma Pinchemel Cotrim 《World Journal of Clinical Cases》 SCIE 2022年第15期4713-4716,共4页
The intestinal microbiota and its role in health and disease processes have been the subject of several studies.It is known that changes in the intestinal microbiota occur due to several factors,such as the use of med... The intestinal microbiota and its role in health and disease processes have been the subject of several studies.It is known that changes in the intestinal microbiota occur due to several factors,such as the use of medication,age,lifestyle and diseases,which can modify intestinal homeostasis and lead to excessive growth of bacteria in the small intestine,triggering a clinical condition called small bowel bacterial overgrowth(SIBO).Individuals with SIBO may present gastrointestinal symptoms ranging from nausea,diarrhea and/or constipation,and flatulence to distension and abdominal pain,resulting from poor absorption of nutrients or changes in intestinal permeability.The gold-standard treatment is based on the use of antibiotics to eradicate bacterial overgrowth.Some studies have evaluated diets in the treatment of SIBO;however,the studies are of low methodological quality,making extrapolation of the results to clinical practice unfeasible.Thus,there is still not enough scientific evidence to support a specific type of diet for the treatment of SIBO. 展开更多
关键词 Small intestinal bacterial overgrowth TREATMENT DIET NUTRITION
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One-dimensional Li_(3)VO_(4)/carbon fiber composites for enhanced electrochemical performance as an anode material for lithium-ion batteries 被引量:1
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作者 Jungwook Song Achmad Yanuar Maulana +4 位作者 Woojin Jae Hyunjeong Gim Boram Yun Cybelle M.Futalan Jongsik Kim 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2023年第9期142-152,共11页
Lithium vanadium oxide(Li_(3)VO_(4))has gained attention as an alternative anode material because of its higher theoretical capacity(592 mAh g^(−1)),moderate ionic conductivity(∼10^(−4)S cm^(−1)),and lower working vo... Lithium vanadium oxide(Li_(3)VO_(4))has gained attention as an alternative anode material because of its higher theoretical capacity(592 mAh g^(−1)),moderate ionic conductivity(∼10^(−4)S cm^(−1)),and lower working voltage range(∼0.5–1.0 V vs.Li/Li^(+))in comparison to other metal oxides.However,there are disadvantages to using Li_(3)VO_(4)as an anode material,such as low initial Coulombic efficiency and poor rate performance that is attributed to its low electronic conductivity(<10^(−1)0 S cm^(−1)).In the present study,the synthesis of one-dimensional Li_(3)VO_(4)electrode was performed via a facile method by using oxidized vapor grown carbon fiber as a template and the formation of the outer shells of conductive carbon via chemical vapor deposition technique.In a half-cell configuration,the prepared Li_(3)VO_(4)composites exhib-ited an enhanced electrochemical performance with a reversible capacity of 516.2 mAh g^(−1)after 100 cycles at a rate of 0.5 C within the voltage range of 0.01–3.0 V.At a high rate of 5 C,a large reversible capacity of 322.6 mAh g^(−1)was also observed after 500 cycles.The full cell(LVO/VGCF16-C||LiCoO_(2))using LiCoO_(2)as the cathode showed competitive electrochemical performance,which demonstrates its high potential in commercial applications. 展开更多
关键词 Lithium-ion batteries Anode materials Lithium vanadium oxide One-dimensional electrode Carbon fiber
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Physico-chemical characterization of acid base disorders in patients with COVID-19:A cohort study 被引量:1
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作者 Sergio Pinto de Souza Juliana R Caldas +5 位作者 Marcelo Barreto Lopes Marcelo Augusto Duarte Silveira Fernanda Oliveira Coelho Igor Oliveira Queiroz Pedro Domingues Cury Rogério da Hora Passos 《World Journal of Nephrology》 2024年第2期16-23,共8页
BACKGROUND Acid-base imbalance has been poorly described in patients with coronavirus disease 2019(COVID-19).Study by the quantitative acid-base approach may be able to account for minor changes in ion distribution th... BACKGROUND Acid-base imbalance has been poorly described in patients with coronavirus disease 2019(COVID-19).Study by the quantitative acid-base approach may be able to account for minor changes in ion distribution that may have been over-looked using traditional acid-base analysis techniques.In a cohort of critically ill COVID-19 patients,we looked for an association between metabolic acidosis surrogates and worse clinical outcomes,such as mortality,renal dialysis,and length of hospital stay.AIM To describe the acid-base disorders of critically ill COVID-19 patients using Stewart’s approach,associating its variables with poor outcomes.METHODS This study pertained to a retrospective cohort comprised of adult patients who experienced an intensive care unit stay exceeding 4 days and who were diagnosed with severe acute respiratory syndrome coronavirus 2 infection through a positive polymerase chain reaction analysis of a nasal swab and typical pulmonary involvement observed in chest computed tomography scan.Laboratory and clinical data were obtained from electronic records.Categorical variables were compared using Fisher’s exact test.Continuous data were presented as median and interquartile range.The Mann-Whitney U test was used for comparisons.RESULTS In total,211 patients were analyzed.The mortality rate was 13.7%.Overall,149 patients(70.6%)presented with alkalosis,28 patients(13.3%)had acidosis,and the remaining 34 patients(16.2%)had a normal arterial pondus hydrogenii.Of those presenting with acidosis,most had a low apparent strong ion difference(SID)(20 patients,9.5%).Within the group with alkalosis,128 patients(61.0%)had respiratory origin.The non-survivors were older,had more comorbidities,and had higher Charlson’s and simplified acute physiology score 3.We did not find severe acid-base imbalance in this population.The analyzed Stewart’s variables(effective SID,apparent SID,and strong ion gap and the effect of albumin,lactate,phosphorus,and chloride)were not different between the groups.CONCLUSION Alkalemia is prevalent in COVID-19 patients.Although we did not find an association between acid-base variables and mortality,the use of Stewart’s methodology may provide insights into this severe disease. 展开更多
关键词 COVID-19 Physicochemical approach Acid-base status Critically ill patients Acute respiratory syndrome
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Lom: Discovering Logic Flaws Within MongoDB-based Web Applications 被引量:1
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作者 Shuo Wen Yuan Xue +4 位作者 Jing Xu Li-Ying Yuan Wen-Li Song Hong-Ji Yang Guan-Nan Si 《International Journal of Automation and computing》 EI CSCD 2017年第1期106-118,共13页
Logic flaws within web applications will allow malicious operations to be triggered towards back-end database. Existing approaches to identifying logic flaws of database accesses are strongly tied to structured query ... Logic flaws within web applications will allow malicious operations to be triggered towards back-end database. Existing approaches to identifying logic flaws of database accesses are strongly tied to structured query language (SQL) statement construction and cannot be applied to the new generation of web applications that use not only structured query language (NoSQL) databases as the storage tier. In this paper, we present Lom, a black-box approach for discovering many categories of logic flaws within MongoDB- based web applications. Our approach introduces a MongoDB operation model to support new features of MongoDB and models the application logic as a mealy finite state machine. During the testing phase, test inputs which emulate state violation attacks are constructed for identifying logic flaws at each application state. We apply Lom to several MongoDB-based web applications and demonstrate its effectiveness. 展开更多
关键词 Logic flaw web application security not only structured query language (NoSQL) database BLACK-BOX MougoDB.
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A holistic approach to improving safety for battery energy storage systems
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作者 James Close Jonathan E.Barnard +1 位作者 Y.M.John Chew Semali Perera 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第5期422-439,共18页
The integration of battery energy storage systems(BESS)throughout our energy chain poses concerns regarding safety,especially since batteries have high energy density and numerous BESS failure events have occurred.Wid... The integration of battery energy storage systems(BESS)throughout our energy chain poses concerns regarding safety,especially since batteries have high energy density and numerous BESS failure events have occurred.Wider spread adoption will only increase the prevalence of these failure events unless there is a step change in the management and design of BESS.To understand the causes of failure,the main challenges of BESS safety are summarised.BESS consequences and failure events are discussed,including specific focus on the chain of events causing thermal runaway,and a case study of a BESS explosion in Surprise Arizona is analysed.Based on the technology and past events,a paradigm shift is required to improve BESS safety.In this review,a holistic approach is proposed.This combines currently adopted approaches including battery cell testing,lumped cell mathematical modelling,and calorimetry,alongside additional measures taken to ensure BESS safety including the requirement for computational fluid dynamics and kinetic modelling,assessment of installation level testing of the full BESS system and not simply a single cell battery test,hazard and layers of protection analysis,gas chromatography,and composition testing.The holistic approach proposed in this study aims to address challenges of BESS safety and form the basis of a paradigm shift in the safety management and design of these systems. 展开更多
关键词 Energy storagesystems Process safety Battery safety Thermal safety
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Development of Saba (<i>Musa</i>“BBB” <i>acuminata x balbisiana</i>) Peel-Monggo [<i>Vigna radiata</i>(L.) R. Wilczek] Flours with Malunggay (<i>Moringa oleifera</i>Lam.) Polvoron Bar 被引量:1
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作者 Welbert A.Ronquillo Marites Gatchalian-Yee +1 位作者 Lotis E.Mopera Aimee Sheree A.Barrion 《Food and Nutrition Sciences》 2020年第4期262-280,共19页
The study was designed to produce a nutrient-dense polvoron bar from the optimized mixture of Saba-peel, monggo, and malunggay using simplex lattice design (RSM-SLD). Polvoron bar was also evaluated analytically inclu... The study was designed to produce a nutrient-dense polvoron bar from the optimized mixture of Saba-peel, monggo, and malunggay using simplex lattice design (RSM-SLD). Polvoron bar was also evaluated analytically including proximate, iron, total dietary fiber (TDF), and vitamin A content. Shelf stability, consumer acceptability, and microbial assessment of the sample were determined. Results showed that the optimal combination of ingredients was 37%, 52%, and 11% for saba peel flour, monggo flour, and malunggay powder, respectively. Proximate composition revealed that a fresh sample can provide 66% of carbohydrates, 12.17% protein, and 17% of fats. Every 100 g has 1.43 mg Fe content, 1.78 g TDF, and 91.25 mg vitamin A. The optimized product can last up to 111, 98, and 54 days at 30&deg;C, 40&deg;C, and 50&deg;C, respectively, while total aerobic bacteria, yeast and molds, and coliform count are within the acceptable limits of the FDA standards. 展开更多
关键词 Malunggay Monggo Saba-Peel Polvoron
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菲律宾Zambales蛇绿岩套的再研究:对其特提斯来源的启示(英文) 被引量:1
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作者 Karlo L.QUEANO Carla B.DIMALANTA +9 位作者 Graciano P.YUMUL JR Decibel V.FAUSTINO-ESLAVA Edanjarlo J.MARQUEZ Noelynna T.RAMOS Keisuke ISHIDA Shigeyuki SUZUKI Ricky C.SALAPARE Michael Peter M.SANCHEZ Juan Miguel R.GUOTANA Rose Ann B.CONCEPCION 《地球学报》 EI CAS CSCD 北大核心 2012年第S1期58-58,共1页
A number of geological studies have already been conducted on the Zambales Ophiolite Complex(ZOC), a north-south trending complete ophiolite sequence exposed in the western portion of Central Luzon, Philippines.Previo... A number of geological studies have already been conducted on the Zambales Ophiolite Complex(ZOC), a north-south trending complete ophiolite sequence exposed in the western portion of Central Luzon, Philippines.Previous works recognized the ZOC as being made up of two blocks, 展开更多
关键词 Zambales OPHIOLITE COMPLEX TETHYAN RADIOLARIANS Philippines
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Sustainable Consumption and Production in the Baltic Sea Region
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作者 Janis Brizga Dzintra Atstaja Dzineta Dimante 《Chinese Business Review》 2011年第11期1009-1020,共12页
Economic activity always has an impact on the environment, but the potential degree of this impact depends on consumption and production pattems. The aim of this paper is to analyse the environmental and well being im... Economic activity always has an impact on the environment, but the potential degree of this impact depends on consumption and production pattems. The aim of this paper is to analyse the environmental and well being impacts of consumption and production systems in Baltic Sea Region and draw conclusions about transferring of best practises in Latvia. This study is based on indicator analyses, focusing on data of environmental impacts from consumption and production in the region, and analyses drivers behind these impacts. The paper concludes two trends--Scandinavian countries and Germany which have more advanced economies demonstrate much higher ecoefficiency and environmental management practices compared to the new EU member states. The example of the Baltic Sea region shows that high income levels and a stable development path in the old EU member states provide grounds for technology advancement to reduce the environmental impact of production. However Baltic States and Poland on average demonstrate much more sustainable consumption patterns. But the trends in these countries are negative--they try to copy lifestyles and consumption patterns of more advanced economies with higher ecological footprint. Challenge for Latvia is to improve its ecoefficiency but at the same time develop more sustainable consumption patterns. 展开更多
关键词 Baltic Sea Region ECONOMY environmental impact EFFICIENCY environmental management sustainable consumption and production
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