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理想的反应器 Alfa Laval公司开发高能效的新型平板式反应器
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《流程工业》 2008年第1期54-55,共2页
化工行业是欧洲第三大制造业,充满了竞争压力和相关的环境立法规定,目的在于不断督察工厂的制造及加工技术。寻找更安全、更清洁、更节能的制造工艺,成为行业内首要关注的问题和不断提升的挑战。
关键词 反应器 ALFA 平板式 理想 能效 开发 化工行业 加工技术
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Dynamic virtual power plants:A comprehensive review of architectures,control strategies,and grid support capabilities
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作者 Navid Vafamand Abbas Rabiee Innocent Kamwa 《iEnergy》 2026年第1期7-21,共15页
The increasing penetration of inverter-based resources(IBRs)and renewable energy resources poses significant challenges to the stability and controllability of modern power systems.Dynamic virtual power plants(DVPPs)h... The increasing penetration of inverter-based resources(IBRs)and renewable energy resources poses significant challenges to the stability and controllability of modern power systems.Dynamic virtual power plants(DVPPs)have emerged as a transformative solution for aggregating and controlling heterogeneously distributed energy resources(DERs)flexibly and dynamically.This paper presents a comprehensive review of DVPPs,covering their conceptual evolution—from microgrids to virtual power plants(VPPs)and fast-acting VPPs—culminating in the dynamic DVPP paradigm.This review explores key architectural frameworks,including grid-forming and grid-following roles,as well as AC/DC interfacing strategies.Emphasis is placed on secondary frequency and voltage control mechanisms,dynamic-based and market-based disaggregation,and control methodologies tailored to DERs. 展开更多
关键词 Dynamic virtual power plants(DVPPs) Inverter-based resources(IBRs) Distributed energy resources(DERs) Disaggregation techniques Control of DERs
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Role of the medullary reticular formation in motor control and functional recovery following spinal cord injury
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作者 Frederic Bretzner 《Neural Regeneration Research》 2026年第3期1138-1139,共2页
Spinal cord injury(SCI)interrupts the flow of information between the brain and the spinal cord,thus leading to a loss of sensory information and motor paralysis of the body below the lesion.Surprisingly,most SCIs are... Spinal cord injury(SCI)interrupts the flow of information between the brain and the spinal cord,thus leading to a loss of sensory information and motor paralysis of the body below the lesion.Surprisingly,most SCIs are incomplete and spare supraspinal pathways,especially those located within the peripheral white matter of the spinal cord,which includes reticulospinal pathways originating from the medullary reticular formation.Whereas there is abundant literature about the motor cortex,its corticospinal pathway,and its capacity to modulate functional recovery after SCI,less is known about the medullary reticular formation and its reticulospinal pathway. 展开更多
关键词 spinal cord injury sci interrupts supraspinal pathwaysespecially peripheral white matter motor cortexits spinal cordthus corticospinal pathway spinal cordwhich reticulospinal pathways
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Towards Mutuality in the Canada-China Relationship:The Experience of the Department of Surgery at Laval University since the 1980s
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作者 Robert GUIDOIN WANG Lu Yvan DOUVILLE 《Frontiers of Education in China》 2015年第3期384-400,共17页
The Department of Surgery at Laval University has been a key player in the development of Canada-China cooperation since the 1980s.The projects initiated and developed by Jean Couture and Guojin Liu to address cancer ... The Department of Surgery at Laval University has been a key player in the development of Canada-China cooperation since the 1980s.The projects initiated and developed by Jean Couture and Guojin Liu to address cancer issues,and specifically breast cancer,were heralded as outstanding successes.In the meantime,the Department of Surgery at Laval University trained numerous Chinese scholars,students,and post-doctoral fellows who became leaders in their fields of expertise.A few of these scholars and students settled in Canada,but the vast majority returned home.Since 2007,a highly specialized research program related to surgical implants with the College of Textiles at Donghua University has been opening new avenues in medical textiles to develop expertise through student training,to launch bridges between textile engineers and clinicians,and to provide the industry with a unique expertise.The final goal is to improve the accessibility and affordability of health care delivery in both Canada and China.China is now a key player in related research and no longer requires foreign assistance.Since it can easily find multiple partners,Canada must be alert to building on its legacy and maintaining its privileged position.China is now a place for Canadian champions. 展开更多
关键词 Canada-China cooperation MUTUALITY Changchun Laval University Donghua University
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Additive neurorestorative effects of exercise and docosahexaenoic acid intake in a mouse model of Parkinson’s disease 被引量:1
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作者 Olivier Kerdiles Méryl-Farelle Oye Mintsa Mi-mba +8 位作者 Katherine Coulombe Cyntia Tremblay VincentÉmond Martine Saint-Pierre Clémence Rouxel Line Berthiaume Pierre Julien Francesca Cicchetti Frédéric Calon 《Neural Regeneration Research》 SCIE CAS 2025年第2期574-586,共13页
There is a need to develop interventions to slow or reverse the degeneration of dopamine neurons in Parkinson’s disease after diagnosis.Given that preclinical and clinical studies suggest benefits of dietary n-3 poly... There is a need to develop interventions to slow or reverse the degeneration of dopamine neurons in Parkinson’s disease after diagnosis.Given that preclinical and clinical studies suggest benefits of dietary n-3 polyunsaturated fatty acids,such as docosahexaenoic acid,and exercise in Parkinson’s disease,we investigated whether both could synergistically interact to induce recovery of the dopaminergic pathway.First,mice received a unilateral stereotactic injection of 6-hydroxydopamine into the striatum to establish an animal model of nigrostriatal denervation.Four weeks after lesion,animals were fed a docosahexaenoic acid-enriched or a control diet for the next 8 weeks.During this period,the animals had access to a running wheel,which they could use or not.Docosahexaenoic acid treatment,voluntary exercise,or the combination of both had no effect on(i)distance traveled in the open field test,(ii)the percentage of contraversive rotations in the apomorphine-induction test or(iii)the number of tyrosine-hydroxylase-positive cells in the substantia nigra pars compacta.However,the docosahexaenoic acid diet increased the number of tyrosine-hydroxylase-positive terminals and induced a rise in dopamine concentrations in the lesioned striatum.Compared to docosahexaenoic acid treatment or exercise alone,the combination of docosahexaenoic acid and exercise(i)improved forelimb balance in the stepping test,(ii)decreased the striatal DOPAC/dopamine ratio and(iii)led to increased dopamine transporter levels in the lesioned striatum.The present results suggest that the combination of exercise and docosahexaenoic acid may act synergistically in the striatum of mice with a unilateral lesion of the dopaminergic system and provide support for clinical trials combining nutrition and physical exercise in the treatment of Parkinson’s disease. 展开更多
关键词 6-HYDROXYDOPAMINE DOPAMINE dopamine transporter EXERCISE neurorestoration Parkinson’s disease polyunsaturated fatty acids omega-3
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Does mesenchymal stem cell’s secretome affect spinal sensory circuits?Implication for pain therapies
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作者 Francesco Ferrini Esri H.Juárez Adalberto Merighi 《Neural Regeneration Research》 SCIE CAS 2025年第1期181-183,共3页
Mesenchymal stem cells(MSCs)are multipotent adult stem cells of mesodermal origin that can be isolated from various tissues,including bone marrow,tooth pulp,adipose tissue,and umbilical cord.MSCs have gained significa... Mesenchymal stem cells(MSCs)are multipotent adult stem cells of mesodermal origin that can be isolated from various tissues,including bone marrow,tooth pulp,adipose tissue,and umbilical cord.MSCs have gained significant attention in regenerative medicine due to their ability to modulate the immune system and favor tissue repair.MSCs enrich the medium in which they are cultivated with a broad range of bioactive molecules,including growth factors,cytokines,chemokines,enzymes,nucleic acids,and extracellular vesicles that collectively compose the MSC secretome.An increasing number of pre-clinical studies suggest that delivering in vivo an MSC-conditioned medium(i.e.,the medium collected from MSC cultures after at least 3 days of exposure)exerts neuroprotective and anti-inflammatory effects in a variety of neurological conditions. 展开更多
关键词 protective clinical COLLECTIVE
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Nano-drug delivery systems integrated with low radiation doses for enhanced therapeutic efficacy in cancer treatment
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作者 Antonio Pontoriero Paola Critelli +7 位作者 Marco Zeppieri Alberto Bosurgi Stefania Guercio Maria Caffo Filippo Flavio Angileri Silvana Parisi Salvatore Lavalle Stefano Pergolizzi 《World Journal of Clinical Cases》 SCIE 2025年第10期14-27,共14页
BACKGROUND Precision medicine is an emerging field that includes tumor-targeted delivery and tumor microenvironment.This review explores the synergistic potential of combining nano-drug delivery systems with low radia... BACKGROUND Precision medicine is an emerging field that includes tumor-targeted delivery and tumor microenvironment.This review explores the synergistic potential of combining nano-drug delivery systems with low radiation doses to achieve optimized therapeutic outcomes,particularly in the context of cancer treatment.Nanoparticle-based drug carriers offer precise and targeted delivery,enhancing the therapeutic index of anticancer agents.The use of lower radiation doses has become a focus in radiation oncology to minimize off-target effects on healthy tissues in palliation treatment with high-target volume lesions.AIM To conduct a bibliometric review of nanomedicine and glioblastoma(GBM),all relevant studies from the last two decades were included.METHODS The search strategy comprised the keywords“nanomedicine”and“glioblastoma”in the title and/or abstract.All English-language documents from 1 January 2000 to 31 December 2023 were considered for the analysis.R code(version 4.2.0)with R Studio(version 2022.12.0-353)and the Bibliometrix package(version 4.0.1)were used for the analysis.A total of 680 documents were collected.RESULTS We analyzed the bibliometric features of nanomedicine in glioma.With the limitations of the research,our analysis aims to highlight the increasing interest of researchers in the precision medicine field in GBM treatment and lead us to suggest further studies focusing on the association between nanomedicine and radiotherapy.CONCLUSION Due to the poor prognosis associated with GBM,new therapeutic approaches are necessary.There is an increasing interest in precision medicine,which includes nanomedicine and radiotherapy,for GBM treatment.This integration enhances the efficacy of targeted treatments and provides a promising avenue for reducing adverse effects,signifying a notable advancement in precision oncology. 展开更多
关键词 NANOMEDICINE NANOPARTICLES DRUG-DELIVERY RADIOTHERAPY Combination therapy
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Noninvasive electrodiagnostic and motor function assessment of the common fibular nerve regeneration in the rabbit hindlimb
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作者 Olivier Larrivée Alexane Thibodeau +4 位作者 Rosemarie Rinfret-Paquet Todd Galbraith Oumayma Hayouni Hélène TKhuong François Berthod 《Animal Models and Experimental Medicine》 2025年第11期2080-2090,共11页
Background:Although widely used,the rat model remains poorly transferable to humans for peripheral nerve regeneration studies.The rabbit is a much better choice from an anatomical perspective.However,it remains little... Background:Although widely used,the rat model remains poorly transferable to humans for peripheral nerve regeneration studies.The rabbit is a much better choice from an anatomical perspective.However,it remains little used due to the lack of available literature.The aim of this article is to demonstrate the feasibility and effectiveness of an electrophysiological protocol combined with a motor function assessment to analyze nerve repair.Methods:Ten white New Zealand rabbits underwent a 4 cm transection of the fibular nerve.Autograft regeneration over 36 weeks was compared to non-repaired controls.The compound muscle action potential(CMAP)was recorded in the tibialis anterior and the extensor digitorum brevis.An electromyogram(EMG)was obtained after needle insertion and resting muscle activity recording.The electrophysiological results were compared to the toe spread index(TSI),which assesses the motor functional recovery promoted by fibular nerve regeneration.Results:The autograft group regeneration starts between weeks 18 and 21 and normal EMG was observed around the 30th week.These electrophysiological results were compared to the well-defined toe spread reflex.This motor test showed a significant functional return of 59%at 36 weeks(p<0.05).Rabbits regain nearly 80%of their muscle mass.Conclusion:Nerve conduction allows detection of nerve regeneration of the muscle while electromyography indicates when muscle activity returns to normal.These studies are reliable and non-invasive techniques to evaluate fibular nerve regeneration in the rabbit's hindlimb.Nonetheless,it is necessary to have qualified personnel,since inter-manipulator variations have been observed. 展开更多
关键词 DENERVATION ELECTROMYOGRAM fibular(peroneal)nerve motor function nerve conduction
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Long-term immunosuppression of rabbits through oral tacrolimus administration
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作者 Alexane Thibodeau Todd Galbraith +2 位作者 Oumayma Hayouni Hélène T.Khuong François Berthod 《Animal Models and Experimental Medicine》 2025年第9期1700-1709,共10页
Background:The absence of well-established immunosuppressed rabbit models poses a significant hurdle in xenograft experiments.Tacrolimus has been identified as a highly promising immunosuppressive agent for rabbits.Ho... Background:The absence of well-established immunosuppressed rabbit models poses a significant hurdle in xenograft experiments.Tacrolimus has been identified as a highly promising immunosuppressive agent for rabbits.However,determining the optimal dosage and route of administration to minimize toxicity while maintaining efficacy remains challenging.Methods:In this study,we investigated the effect of orally administered tacrolimus in rabbits,with an aim to achieve a whole blood target trough level of 3-10 ng/m L,and looked at signs of tissue rejection after the transplantation of a human nerve conduit to repair a severed fibular nerve.An oral dosage range of 0.25-1.5 mg/kg/d was studied for up to 1 year in 63 New Zealand rabbits.Results:We demonstrated the feasibility of long-term grafting in rabbits while maintaining safe immunosuppression,with side effects mainly limited to diarrhea.Customizing the administered dose proved crucial for graft efficacy and low toxicity,which translated into 100%individual survival.We suggest an oral tacrolimus dose of 1.0-1.5 mg/kg depending on individual heterogeneity and recommend to implement a close therapeutic drug monitoring in the rabbits to maintain a whole blood tacrolimus trough level within the range of 5-12 ng/m L,as levels below 5 ng/m L showed signs of inflammation in the graft.Conclusion:The oral administration of tacrolimus enabled efficient immunosuppression of rabbits over a 1-year period without significant side effects or loss of animals. 展开更多
关键词 adverse effect blood level IMMUNOSUPPRESSION nerve graft RABBIT TACROLIMUS
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Occlusive effectiveness of open-ended no-scalpel vasectomy with mucosal cautery and fascial interposition: a descriptive study
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作者 Souleymane Diabate Marco Arellano +3 位作者 Jonathan Cloutier Michel Dallaire Simon Plourde Michel Labrecque 《Asian Journal of Andrology》 2025年第5期592-597,共6页
We aimed to assess the occlusive effectiveness of open-ended vasectomy with mucosal cautery and fascial interposition and to determine the factors associated with occlusion failure.We studied all vasectomies performed... We aimed to assess the occlusive effectiveness of open-ended vasectomy with mucosal cautery and fascial interposition and to determine the factors associated with occlusion failure.We studied all vasectomies performed between September 1,2020,and August 31,2021,by four vasectomy surgeons from Quebec City,Quebec,Canada.Sociodemographic and clinical characteristics were extracted from the electronic medical records.Occlusive effectiveness was assessed in all men with at least one postvasectomy semen analysis(PVSA).The effectiveness criteria were adapted from those of the American Urological Association(AUA)vasectomy guideline.Among the 4000 eligible vasectomies,2242(56.1%)were followed by at least one PVSA,with 99(4.4%)requiring more than one PVSA.Occlusive effectiveness was achieved in 2233 vasectomies(99.6%;95%confidence interval[CI]:99.3%-99.8%),with 2199(98.1%)and 34(1.5%)classified as confirmed and probable success,respectively.The final status of the three vasectomies(0.1%)was indeterminate.Occlusive failure was observed in six vasectomies(0.3%;95%CI:0.1%-0.6%).The four surgeons had a similar risk of failure.The only significant factor associated with failure was the difficulty in performing the vas occlusion reported by the surgeon(7.4%[2/27]vs 0.2%[4/2212];relative risk=41.0;95%CI:7.8-214.2).The high occlusive effectiveness observed in our study validates AUA recommendations,supporting the use of this technique.Difficulty in occlusion of the vas deferens,as reported by surgeons,was the only factor associated with vasectomy failure.This finding highlights the need for PVSA in such cases. 展开更多
关键词 CONTRACEPTION family planning services semen analysis treatment outcome VASECTOMY
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Effect of powder preparation on degradation behavior and cytotoxicity of sintered porous biodegradable FeMnC alloys for biomedical applications
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作者 Abdelhakim Cherqaoui Francesco Copes +4 位作者 Carlo Paternoster Simon Gélinas Paolo Mengucci Carl Blais Diego Mantovani 《Journal of Materials Science & Technology》 2025年第33期198-214,共17页
Biodegradable implants have emerged in biomedical applications,particularly for orthopedic fixations,cardiovascular stents,and tissue engineering scaffolds.Unlike permanent implants,they are designed to degrade and be... Biodegradable implants have emerged in biomedical applications,particularly for orthopedic fixations,cardiovascular stents,and tissue engineering scaffolds.Unlike permanent implants,they are designed to degrade and be reabsorbed after implantation in the body,mitigating the need for additional surgeries and reducing associated complications.In particular,Fe-Mn-C alloys constitute a new class of promising metallic materials for medical applications due to their outstanding mechanical properties and their bio-logical performances.This study focuses on improving the degradation rates and cytotoxicity of sintered Fe-Mn-C alloys produced using the powder metallurgy process.To evaluate the impact of different pow-der preparation methods on material properties,two types of powders were used:(1)MX,prepared by mixing Fe,Mn,and C powders for 1 h;and(2)MM,obtained by mechanically milling the same powders for 10 h.Four mixtures with varying proportions of MX and MM were prepared.Two groups of samples were produced:one entirely from MX(A0),and another containing MM at 25 wt.%(A25),50 wt.%(A50),and 75 wt.%(A75).All samples exhibited a complex microstructure comprising ferrite,martensite,and residual austenite.Degradation behavior assessment in Hanks’solution over 14 days showed that adding MM increased the degradation rate,from around 0.04 mmpy for A0 to 0.12 mmpy for A25.Notably,all samples showed similar cell viability,in the range of 83%-89%for 1%extract dilution,and were non-hemolytic,with a hemolysis percentage below 1%. 展开更多
关键词 Biodegradable FeMnC alloys Powder metallurgy Mechanical-milling Degradation Cell viability HEMOLYSIS
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Fever without source in infants aged 22–60 days:how laboratory tests perform at identifying bacterial infections and predicting the need for a lumbar puncture?
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作者 Keven Vachon Geneviève Gravel +6 位作者 Samuel Leduc Alexandra Larouche Myriam Mallet David Simonyan Mahukpe Narcisse Ulrich Singbo Julie Ouellet-Pelletier Simon Berthelot 《World Journal of Emergency Medicine》 2025年第1期74-77,共4页
Febrile infants are at greater risk of invasive bacterial infections (IBI),which include bacterial meningitis and bacteremia.Although bacterial meningitis is uncommon,^([1-2])it remains a concern for clinicians treati... Febrile infants are at greater risk of invasive bacterial infections (IBI),which include bacterial meningitis and bacteremia.Although bacterial meningitis is uncommon,^([1-2])it remains a concern for clinicians treating infants younger than 90 d.Guidelines for investigating fever without a source(meaning without an apparent source of infection,or of nonobvious origin) are numerous around the world but remain conflicting,particularly on whether to perform a lumbar puncture for cerebrospinal fluid (CSF) analysis in infants older than 22 d and hence at lower risk than younger infants. 展开更多
关键词 PUNCTURE infections LUMBAR
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Environmentally Friendly Tannic Acid-Furfuryl Alcohol-Soybean Isolate/Casein Composite Foams Reinforced with Wood Fibers
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作者 Jinxing Li Mustafa Zor +3 位作者 Xiaojian Zhou Guanben Du Denis Rodrigue Xiaodong(Alice)Wang 《Journal of Renewable Materials》 2025年第2期329-347,共19页
In this study,two series of foams based on tannic acid(TA),furfuryl alcohol(FA),soybean protein isolate(SPI),and casein(CA),namely TA–FA–SPI(TS series)and TA–FA–CA(TC series)were developed,and their properties wer... In this study,two series of foams based on tannic acid(TA),furfuryl alcohol(FA),soybean protein isolate(SPI),and casein(CA),namely TA–FA–SPI(TS series)and TA–FA–CA(TC series)were developed,and their properties were enhanced by adding poplar fibers(WF).From the samples produced,a complete set of characterization was performed including possible crosslinking reactions,morphology,mechanical properties,flame retardancy,thermal insulation and thermal stability.Fourier-transform infrared spectroscopy(FTIR)revealed possible covalent crosslinking among the components and hydrogen bonding between WF and the matrix.Viscosity results indicated that lower prepolymer viscosity led to lower apparent density,while WF addition reduced even more the density.Mechanical tests showed that the maximum compressive strengths were good,while WF improved the compressive strength by up to 56%.Scanning electron microscopy(SEM)showed uniform cell structures,but small open pores were observed.Two-dimensional(2D)CT scan images confirmed the good compatibility between WF and the matrix,with low anisotropy in the material.Friability tests indicated that WF decreased the pulverization ratio of the materials by up to 42%.Thermogravimetric analysis(TGA)showed good thermal stability of the materials up to 328°C.Vertical burning tests showed that the materials were self-extinguishing without residue(dripping).The lowest thermal conductivity was 0.04 W/m·K.These results suggest that these novel formaldehyde-free,high biomass content(95%–96%)foams and composite foams have high potential to replace traditional phenolic foams(PF)in applications such as construction,transportation,packaging,and thermal insulation. 展开更多
关键词 Foam composite tannic acid soybean isolate protein CASEIN poplar fiber compressive strength flame retardancy thermal insulation
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Intermediate impacts of COVID-19 lockdowns on surgical glaucoma cases in Quebec,Canada:insights from a tertiary eye center
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作者 Huixin Anna Zhang Sarah McIntyre +1 位作者 Yosra Er-reguyeg Andrew Toren 《International Journal of Ophthalmology(English edition)》 2025年第10期1894-1900,共7页
AIM:To assess the effect of the coronavirus disease 2019(COVID-19)pandemic on the wait times and severity of surgical glaucoma cases in a single tertiary referral center in Quebec,Canada.METHODS:Preoperative severity ... AIM:To assess the effect of the coronavirus disease 2019(COVID-19)pandemic on the wait times and severity of surgical glaucoma cases in a single tertiary referral center in Quebec,Canada.METHODS:Preoperative severity data included mean visual field(VF)deficit,intraocular pressure(IOP),the number of topical glaucoma medication classes,and preoperative best corrected visual acuity(BCVA).The times from referral to procedure(referral time)and from listing date to procedure(waitlisting time)were calculated.RESULTS:This retrospective cohort study involved 181 eyes of patients undergoing glaucoma surgery from March 1 to June 30,2019(pre-pandemic period),and 201 eyes in the same timeframe in 2021(pandemic period)at Saint-Sacrement Hospital in Quebec City.There was no significant difference in the severity data of surgical glaucoma across both periods(VF deficit:P=0.48;IOP:P=0.14;BCVA:P=0.24;topical medication classes:P=0.27).The number of patients referred with oral glaucoma medication increased slightly from 45 to 70 in 2019 and 2021 respectively(P=0.08).Delay data were also comparable.Mean referral time was 122±120d in 2019 versus 144±136d in 2021(P=0.09),whereas waitlisting time before the pandemic was 43±44.5 versus 39±41.8d in 2021(P=0.13).CONCLUSION:Despite North America’s strictest pandemic restrictions,limited negative impact is observed on waitlisting delays and the severity of glaucoma cases presenting at our center.A larger subset of patients is treated with oral medications indicating a possible increase in advanced glaucoma. 展开更多
关键词 GLAUCOMA COVID-19 glaucoma surgery wait time
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Pathfinder:a tool for operational planning of forest regeneration on clearcuts
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作者 Linnea J.Hansson Anders Rowell +5 位作者 Mikael Rönnqvist Patrik Flisberg Fredrik Johansson Rasmus Sörensen Morgan Rossander Petrus Jönsson 《Journal of Forestry Research》 2025年第4期41-54,共14页
Effective forest regeneration is essential for sustainable forestry practices.In Sweden,mechanical site preparation and manual planting is the dominating method,but sourcing labour for the physically demanding work is... Effective forest regeneration is essential for sustainable forestry practices.In Sweden,mechanical site preparation and manual planting is the dominating method,but sourcing labour for the physically demanding work is difficult.An autonomous scarifying and planting system(Autoplant)could meet the requirements of the forest industry and,for this,a tool for regeneration planning and routing is needed.The tool,Pathfinder,plans the regeneration and routes based on the harvested production(hpr)files,soil moisture and parent material maps,no-go areas(for culture or nature conservation),digital elevation models(DEM),and machine data(e.g.,working width,critical slope,time taken for different turn angles).The overall planting solution is either a set of capacity constrained routes or a continuous route and could be used for any planting machine as well as for traditional scarifiers as disc trenchers or mounders pulled by forwarders.Pathfinder was tested on eleven regeneration areas throughout Sweden,both with continuous routes and routes based on a carrying capacity of 1500 seedlings.The net operation area,species and seedling density suggestions were deemed relevant by expert judgement in the field.The routes provided by Pathfinder were compared with solutions given by two experienced drivers and a third solution based on the actual soil scarification at the site.Total driving distance did not differ significantly between the suggestions,but Pathfinder included less side-slope driving on steep slopes(≥27%or 15°)and medium slopes(15–27%).The chosen threshold value for steep slopes(where side-slope driving should be avoided)affects the routing,and a lower threshold means more turning and longer driving distance.Pathfinder is not only a tool for routing of planting machines,but also helps in planning of traditional regeneration by providing a more correct net area and tree species suggestions based on the growth of the previous stand.It also diminishes the risk of severe soil disturbance by excluding the wettest area in the planning. 展开更多
关键词 ROUTING Site preparation PLANTING Operational planning OPTIMIZATION
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考虑社会心理因素的电动自行车骑行者风险骑行行为研究
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作者 夏文静 张栋 +1 位作者 钟仙玉 隽海民 《交通科学与工程》 2025年第6期30-37,共8页
【目的】电动自行车骑行者的风险骑行行为加剧了交通安全隐患。从社会心理因素视角剖析电动自行车骑行者风险骑行行为的成因。【方法】基于计划行为理论,针对超速、逆行、违规载人、骑行时看手机以及在机动车道或人行道上行驶这5种典型... 【目的】电动自行车骑行者的风险骑行行为加剧了交通安全隐患。从社会心理因素视角剖析电动自行车骑行者风险骑行行为的成因。【方法】基于计划行为理论,针对超速、逆行、违规载人、骑行时看手机以及在机动车道或人行道上行驶这5种典型的风险骑行行为,设计问卷并对校园电动自行车骑行行为进行调研,构建了融合社会心理因素的混合离散选择模型。【结果】相较于只考虑人口统计学和出行行为特征的传统Logit模型,融合社会心理因素的模型对电动自行车风险骑行行为的解释能力更强。具体而言,态度对超速、违规载人等行为具有显著影响;主观规范对骑行时看手机、逆行等行为的影响较为显著;知觉行为控制则对超速和在机动车道或人行道上行驶等行为具有显著影响。【结论】研究为电动自行车安全管理提供了理论依据和实践参考。针对风险骑行行为的矫正,可采取宣传教育等手段,从改变个体对风险骑行行为的态度等主观认知层面入手,引导骑行者规范自身行为。 展开更多
关键词 交通安全 电动自行车 风险骑行行为 社会心理因素 混合选择模型
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Hunting for a viral proxy in bioaerosols of swine buildings using molecular detection and metagenomics
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作者 Valérie Létourneau Marie-Josée Gagné +5 位作者 Jonathan M.Vyskocil Vincent Brochu Kim Robitaille Martin Gauthier Julie Brassard Caroline Duchaine 《Journal of Environmental Sciences》 2025年第2期69-78,共10页
There are limited biosecurity measures directed at preventing airborne transmission of viruses in swine.The effectiveness of dust mitigation strategies such as oil sprinkling,to decrease risk of airborne virus transmi... There are limited biosecurity measures directed at preventing airborne transmission of viruses in swine.The effectiveness of dust mitigation strategies such as oil sprinkling,to decrease risk of airborne virus transmission are unknown.Metagenomics and qPCR for common fecal viruses were used to hunt for a ubiquitous virus to serve as a proxy when evaluating the efficiency of mitigation strategies against airborne viral infectious agents.Air particles were collected from swine buildings using high-volume air samplers.Extracted DNA and RNA were used to perform specific RT-qPCR and qPCR and analyzed by highthroughput sequencing.Porcine astroviruses group 2 were common(from 102 to 105 genomic copies per cubic meter of air or gc/m^(3),93%positivity)while no norovirus genogroup II was recovered from air samples.Porcine torque teno sus virus were detected by qPCR in low concentrations(from 101 to 102 gc/m^(3),47%positivity).Among the identified viral families by metagenomics analysis,Herelleviridae,Microviridae,Myoviridae,Podoviridae,and Siphoviridae were dominant.The phage vB_AviM_AVP of Aerococcus was present in all air samples and a newly designed qPCR revealed between 101 and 105 gc/m^(3) among the samples taken for the present study(97%positivity)and banked samples from5-and 15-year old studies(89%positivity).According to the present study,both the porcine astrovirus group 2 and the phage vB_AviM_AVP of Aerococcus could be proxy for airborne viruses of swine buildings. 展开更多
关键词 BIOAEROSOLS Viral metagenomics ASTROVIRUS Aerococcus phage Swine buildings
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Complications of auricular cartilage harvest in rhinoplasty:Keloid and epidermal cyst formation
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作者 Omar El Sewify Taliah Hyjazie Johnny I Efanov 《World Journal of Clinical Cases》 2025年第30期5-9,共5页
Keloid scars and epidermoid cysts present unique challenges in plastic surgery,often requiring distinct diagnostic and therapeutic approaches.Keloid scars result from dysregulated wound healing characterized by collag... Keloid scars and epidermoid cysts present unique challenges in plastic surgery,often requiring distinct diagnostic and therapeutic approaches.Keloid scars result from dysregulated wound healing characterized by collagen overproduction and inflammatory states.In contrast,epidermoid cysts are cutaneous lesions lined with keratinized epithelium,with the rare complication of development into squamous cell carcinoma.A rare clinical dilemma is when epidermoid cysts arise within keloidal scar tissue.In this case,effective management involves meticulous diagnostic approaches,including ultrasonography and histopathological examination,to identify coexisting cysts within scar tissue.In the few studies reporting this rare occurrence,various treatment protocols exist consisting of various combinations of surgical excision,intralesional corticosteroid injections,chemotherapeutic agents,laser therapy,radiotherapy,isotretinoin,and tranilast.As advancements in the comprehension and treatment of epidermoid cysts within keloid scars progress,customized therapeutic approaches provide promise for enhancing patient outcomes and quality of life. 展开更多
关键词 RHINOPLASTY Surgery RECURRENCE Keloid scar Epidermoid cyst EAR
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Assessing the impact of CD73 inhibition on overcoming anti-EGFR resistance in glioma cells
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作者 LUIZ FERNANDO LOPES SILVA JULIETE NATHALI SCHOLL +6 位作者 AUGUSTO FERREIRA WEBER CAMILA KEHL DIAS PAULINE RAFAELA PIZZATO VINÍCIUS PIERDONÁLIMA JEAN SÉVIGNY ANA MARIA OLIVEIRA BATTASTINI FABRÍCIO FIGUEIRÓ 《Oncology Research》 2025年第4期951-964,共14页
Objectives:Glioblastoma(GB)is a grade IV glial tumor characterized by high malignancy and dismal prognosis,primarily due to high recurrence rates and therapeutic resistance.The epidermal growth factor receptor(EGFR),a... Objectives:Glioblastoma(GB)is a grade IV glial tumor characterized by high malignancy and dismal prognosis,primarily due to high recurrence rates and therapeutic resistance.The epidermal growth factor receptor(EGFR),a receptor tyrosine kinase(RTK),regulates signaling pathways,including cell growth,proliferation,survival,migration,and cell death.Many cancers utilize immune checkpoints(ICs)to attenuate immune responses.CD73 is an enzyme that functions as an IC by hydrolyzing AMP to adenosine,suppressing immune cells in the tumor microenvironment.However,the role of CD73 in resistance to EGFR inhibitors is poorly understood.This study aims to elucidate the resistance mechanisms induced by anti-EGFR treatment and to evaluate an anti-CD73 approach to overcome resistance mediated by anti-EGFR monotherapy.Methods:The U251 GB cell line was treated with AG1478,an EGFR inhibitor,and the resistance markers MRP-1,PD-L1,and CD73 were evaluated using flow cytometry.Additionally,we assessed the combination effects of AG1478 and APCP(an EGFR and a CD73 inhibitor,respectively)on cell cycle progression,proliferation,apoptosis,and migration in vitro.Results:We observed high EGFR,PD-L1,and CD73 expression in human GB cells.The treatment with AG1478 increased the expression of resistance markers MRP-1,PD-L1,and CD73,whereas it decreased CTLA-4.The combination of AG1478 and APCP did not alter proliferation or apoptosis but interfered with cell cycling,arresting the cells in the G1 phase,decreasing cell motility and partially reversing MRP-1 overexpression.Conclusion:In summary,our findings indicate that CD73 inhibition has a modest effect in overcoming resistance to EGFR monotherapy in vitro.Thus,further in vivo studies are needed,as the inhibition of both EGFR and CD73 affects cells in the tumor microenvironment and could potentially enhance anti-tumor immunity. 展开更多
关键词 Glioblastoma(GB) Epidermal growth factor receptor(EGFR) CD73 CHEMORESISTANCE TYRPHOSTIN
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Sexual activity in men undergoing ADT for localized prostate cancer: a narrative literature review
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作者 Laeticia Creidy Daniel Taussky +2 位作者 Frederic Pouliot Fred Saad Fabian Falkenbach 《Asian Journal of Andrology》 2025年第5期581-585,共5页
Androgen deprivation therapy(ADT)can negatively affect sexual function,and only a minority of patients report sexual activity.We reviewed the existing literature regarding the proportion of men who remained sexually a... Androgen deprivation therapy(ADT)can negatively affect sexual function,and only a minority of patients report sexual activity.We reviewed the existing literature regarding the proportion of men who remained sexually active during and after ADT.The PubMed database was searched for studies published over the past 20 years.We selected and reviewed randomized clinical trials that provided sexual function data at baseline and during and after ADT.The primary outcome measure was the sexual function.Studies assessed sexual function using quality of life patient-reported outcome measures,which included sexual potency/activity evaluation.Information from 2947 patients was analyzed in this review.The median age of patients was 70 years.At baseline,a median of 49.9%(95%confidence interval[Cl]:49.1%-50.7%)of the patients reported being sexually active.At 6 months,12 months,and 2 years or later of ADT treatment,a median of 10.3%(95%Cl:10.2%-10.5%),8.9%(95%Cl:8.6%-9.2%),and 8.3%(95%Cl:8.2%-8.5%)of the patients reported being sexually active,respectively.Considering that half of the patients were sexually active at baseline,it seems probable that more than 10%of the patients who were sexually active before starting ADT remained sexually active when undergoing ADT.In conclusion,despite the common belief that ADT eliminates sexual activity,this analysis found that approximately 1 in 10 men are sexually active when on ADT,and this proportion is likely increased in men who are sexually active before starting ADT.Attention to sexual activity should not be dismissed in men on ADT. 展开更多
关键词 androgen deprivation therapy erectile function prostate cancer quality of life sexual function
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