检索结果-南通市图书馆

Journal of rare Earths 2024年第9期42卷 1658-1668页

作者： ivan V.Nikiforov Ekaterina V.Iliin Bogdan I.Lazoryak Sergey M.Aksenov Pavel V.Slukin Dina V.Deyneko Department of Chemistry Lomonosov Moscow State University Laboratory of Arctic Mineralogy and Material Sciences Kola Science CentreRussian Academy of Sciences Geological Institute Kola Science CentreRussian Academy of Sciences State Scientific Center of Applied Microbiology and Biotechnology of rospotrebnadzor 24

Novel Ca8CurE（PO4）7where rE3+=Eu3+,Tb3+,Dy3+,Ho3+and Er3+were synthesized by a solid-state method in *** structures of the samples were characterized by powder X-ray diffraction using rietveld refinement to determine the occupation of crystal *** samples are found to have a centrosymmetric structure with space group r3c,as shown by dielectric *** synthesized Ca8CurE（PO4）7samples have multifunctional *** Cu2+ions provide antibacterial properties,while the rare earth elements ions exhibit luminescence properties,and the β-Ca3（PO4）2-type host is *** photoluminescence properties of rE3+ions were studied and compared with other simmilar Ca8MrE（PO4）7phosphates,where M is a divalent *** photoluminescence intensity quenching in terms of energy transfer from rE3+to Cu2+is *** bioactive properties were studied in relation to antibacterial activity against *** and *** syntesized Ca8CurE（PO4）7samples demonstrate very high and stable inhibition of bacteria *** correlation between crystal structure and properties is *** combining multiple approaches to the directio nal design of such materials,several important properties within a single chemical compound to achieve biovisualization and bioactive properties simultaneously can be combined.

关键词： Whitlockite-type structure Bioactive phosphates TCP Photoluminescence rare earths

基于CT图像三维重建的高温下再生混凝土孔隙特征研究

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

材料导报 2024年第5期38卷 214-224页

作者：都思哲张淼张玉 Selyutina Nina Smirnov ivan 马树娟董晓强刘元珍太原理工大学土木工程学院太原030024 Coronation Property Co.Pty Ltd/MN Builders 新南威尔士州2620 圣彼得堡国立大学圣彼得堡190000

高温会导致混凝土微细观结构损伤劣化,进而导致混凝土力学性能下降。本工作利用计算机层析成像(CT)技术对高温后掺加玻化微珠的再生混凝土(recycled aggregate concrete mixed with glazed hollow beads, GHB-rAC)试件孔隙结构特征进行... 详细信息

高温会导致混凝土微细观结构损伤劣化,进而导致混凝土力学性能下降。本工作利用计算机层析成像(CT)技术对高温后掺加玻化微珠的再生混凝土(recycled aggregate concrete mixed with glazed hollow beads, GHB-rAC)试件孔隙结构特征进行识别,基于CT扫描与三维重构建模提取并分析了混凝土孔隙结构的特征参数,同时利用灰色关联理论探究孔隙结构特征参数对混凝土残余抗压强度的影响程度。研究结果表明,温度会影响GHB-rAC内部孔隙结构,内部孔隙孔径及表面积随温度升高而增大,温度的升高也会影响混凝土孔隙均匀性,加剧孔隙不均匀性分布;玻化微珠(Glazed hollow beads, GHB)对混凝土温度传导的阻碍作用明显,GHB的掺入改善了混凝土的孔隙结构,减弱了高温导致的孔隙畸化;孔隙尺寸、孔隙球体度及孔隙表面积与残余抗压强度的灰色关联度均在0.55以上,表明孔隙结构参数与残余抗压强度关联性较好。

关键词： CT扫描再生混凝土孔隙结构抗压强度灰色关联度

Endoscopic push through tragal cartilage tympanoplasty: A 10-year retrospective review of our technique and outcomes

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Otorhinolaryngology 2024年第2期11卷 18-24页

作者： K M Abidur rahman Khalid Majeed Emma Finnegan ivan Keogh Ear Noseand Throat/Head and Neck SurgeryGalway University HospitalGalway H91 YR71Ireland Academic Department of Otorhinolaryngology and Head and Neck Surgery University of GalwayGalway H91 TK33Ireland

BACKGrOUND Endoscopic ear surgery(EES)provides a magnified,high-definition view of the otological surgical *** allows otologists to avoid surgical incisions and associated postoperative *** is an ideal technique for the perfor-mance and teaching of *** To examine the efficacy of total Endoscopic Push Through Tragal Cartilage Tympanoplasty(EPTTCT),at our institution over a 10-year *** A retrospective analysis of 168 cases of EPTTCT for closure of small to medium tympanic membrane perforations from 2013-2023 was *** sex,age range(pediatric vs adult),etiology of injury,success rate,complications,and postoperative hearing status were *** Graft uptake results indicated success in 94%of patients,with less than a 2%complication *** pure tone audiometry demonstrated hearing status improvement in 69%of *** EPTTCT has been shown to be effective in tympanic membrane perforation closures with minimal *** study further demonstrates the efficacy and safety of these procedures in a single-center review.

关键词： Total endoscopic ear surgery Otology Tympanoplasty Hearing Perforation Tragal cartilage graft

Pelvic fractures in blunt trauma patients:A comparative study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2024年第5期15卷 418-434页

作者： Alexander A Fokin Joanna Wycech Knight Madison E Tharp Kyler C Brinton Phoebe K Gallagher Justin Fengyuan Xie russell D Weisz ivan Puente Trauma and Critical Care Services Delray Medical CenterDelray BeachFL 33484United States Charles E Schmidt College of Medicine Department of SurgeryFlorida Atlantic UniversityBoca RatonFL 33431United States Trauma and Critical Care Services Broward Health Medical CenterFort LauderdaleFL 33316United States Charles E Schmidt College of Medicine Florida Atlantic UniversityBoca RatonFL 33431United States Herbert Wertheim College of Medicine Department of SurgeryFlorida International UniversityMiamiFL 33199United States

BACKGrOUND Pelvic fractures(PF)with concomitant injuries are on the rise due to an increase of high-energy *** of the elderly population with age related comorbidities further complicates the *** organ injuries are kindred with PF due to the proximity to pelvic *** of contrast blush(CB)on computed tomography in patients with PF is considered a sign of active bleeding,however,its clinical significance and association with outcomes is *** To analyze polytrauma patients with PF with a focus on the geriatric population,co-injuries and the value of contrast *** This retrospective cohort study included 558 patients with PF admitted to level 1 trauma center(01/2017-01/2023).Analyzed variables included:Age,sex,mechanism of injury(MOI),injury severity score(ISS),Glasgow coma scale(GCS),abbreviated injury scale(AIS),co-injuries,transfusion requirements,pelvic angiography,embolization,laparotomy,orthopedic pelvic surgery,intensive care unit and hospital lengths of stay,discharge disposition and *** study compared geriatric and non-geriatric patients,patients with and without CB and abdominal *** score matching was implemented in comparison *** PF comprised 4%of all trauma admissions.89 patients had CB.286(52%)patients had concomitant injuries including 93(17%)patients with abdominal *** patients compared to non-geriatric had more falls as MOI,lower ISS and AIS pelvis,higher GCS,less abdominal co-injuries,similar CB and angio-embolization rates,less orthopedic pelvic surgeries,shorter lengths of stay and higher *** propensity matching,orthopedic pelvic surgery rates remained lower(8%vs 19%,Prter,and mortality higher(13%vs 4%,Priatric *** of 89 patients with CB,45(51%)were *** propensity matching,patients with CB compared to without CB had more pelvic angiography(71%vs 12%,P<0.001),hi

关键词： Pelvic fractures Geriatric trauma patients Abdominal co-injuries Contrast blush Contrast extravasation Angioembolization Polytrauma patients Surgical interventions Blunt trauma External and internal fixation for pelvic stabilization

Intraplaque injections of hyaluronic acid for the treatment of stable-phase Peyronie’s disease:a retrospective single-center experience

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2024年第3期26卷 268-271页

作者： Simone Cilio roberto La rocca Giuseppe Celentano Claudio Marino Massimiliano Creta Gianluigi Califano Celeste Manfredi Giorgio ivan russo Afonso Morgado Marco Falcone Marco Capece YAU Working Group Sexual and reproductive Health Department of Neurosciences Reproductive Sciences and OdontostomatologyUrology UnitUniversity of Naples“Federico II”Naples 80131Italy Urology Unit Department of WomenChild and General and Specialized Surgery“Luigi Vanvitelli”UniversityNaples 80131Italy Urology Section Department of SurgeryUniversityof CataniaCatania 95131Italy Department of Urology Centro Hospitalar Universitário São JoãoPorto 4200-319Portugal Urology Clinic-A.O.U.“Cittàdella Salute edella Scienza”-Molinette Hospital University of TurinTurin 10100Italy 不详

Peyronie’s disease(PD)is a condition of penile connective tissue affecting up to 10%of men *** the complexity ofits management,nonsurgical treatments,such as intraplaque injections,are gaining *** current literature shows dataon the efficacy of intraplaque injections of hyaluronic acid(HA)mainly in acute-phase ***,data on injections of HA instable-phase PD are *** for this retrospective study were derived from a prospectively maintained database of privatepatients presenting at a private medical practice affiliated to the University of Naples“Federico II”(Naples,Italy)with stable-phasePD between January 2020 and March *** underwent a standard protocol of three injections,each administered at atwo-week *** the intervals,patients performed vacuum device therapy,penile stretching,and modeling *** compiled the Peyronie’s Disease Questionnaire(PDQ)and Global Assessment of Peyronie’s Disease(GAPD)at baselineand 2 weeks after the third injection.A penile Doppler ultrasound was performed 2 weeks after the last injection to record thefinal ***,we recruited 62 patients with stable-phase PD and a mean(±standard deviation[s.d.])curvature of52.7°(±9.7°).After 6 weeks,eight(12.9%)patients did not experience any curvature *** remaining 54 patientshad a final mean(±s.d.)curvature of 40.3°(±9.1°)with Pred to that before *** found improvement inall PDQ domains(all P≤0.01),and 50(80.6%)patients reported subjective improvement of the penile curvature according to *** conclusion,we demonstrated that after three injections of HA administered according to the adopted protocol,patientswith stable-phase PD could experience significant improvements in penile curvature,and physical and psychological consequencesof the disease without significantly relevant side effects.

关键词： hyaluronic acid intraplaque injection Peyronie’s disease stable-phase therapy

Clinical issues and challenges in imaging of gastrointestinal diseases:A minireview and our experience

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第18期12卷 3304-3313页

作者： Milena Gulinac Georgi Kiprin ivan Tsranchev Vasko Graklanov Lyubomir Chervenkov Tsvetelina Velikova Department of General and Clinical Pathology Medical University of PlovdivPlovdiv 4002Bulgaria Medical Faculty Sofia University St.Kliment OhridskiSofia 1407Bulgaria Department of Gastroenterology MHAT EurohospitalPlovdiv 4000Bulgaria Department of Forensic Medicine and Deontology Medical University of PlovdivPlovdiv 4000Bulgaria Department of Diagnostic Imaging Medical University PlovdivPlovdiv 4000Bulgaria

Imaging techniques play a crucial role in the modern era of medicine,particularly in ***,various non-invasive and invasive imaging modalities are being routinely employed to evaluate different gastrointestinal(GI)***,many instrumental as well as clinical issues are arising in the area of modern GI *** minireview article aims to briefly overview the clinical issues and challenges encountered in imaging GI diseases while highlighting our experience in the *** also summarize the advances in clinically available diagnostic methods for evaluating different diseases of the GI tract and demonstrate our experience in the *** conclusion,almost all imaging techniques used in imaging GI diseases can also raise many challenges that necessitate careful consideration and profound expertise in this field.

关键词： Imaging methods Gastrointestinal diseases Gastrointestinal tract radiology Tumors of the gastrointestinal tract

A prospective cohort of men with localized prostate cancer on active surveillance protocol in Hong Kong,China:what did we learn?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2024年第3期26卷 245-249页

作者： Xiaobo Wu ivan Ching-Ho Ko Cindy Yeuk-Lam Hong Samuel Chi-Hang Yee Jeremy Yuen-Chun Teoh Samson Yun-Sang Chan Ho-Man Tam Chi-Kwok Chan Chi-Fai Ng Peter Ka-Fung Chiu SH Ho Urology Centre Department of SurgeryFaculty of MedicineThe Chinese University of Hong KongHong KongChina

This study aimed to report the outcomes of active surveillance(AS)in the management of low-risk prostate cancer(PCa).It recruited87 men who were prospectively followed up according to the Prostate Cancer research International Active Surveillance(PrIAS)protocol with local adaptation at SH Ho Urology Centre,Prince of Wales Hospital,Hong Kong,*** investigated the predictorsof disease progression and found that baseline prostate-specific antigen density(PSAD)and the presence of the highest ProstateImaging-reporting and Data System(PI-rADS)score 5 lesion on magnetic resonance imaging(MrI)are significantly correlatedwith disease ***,men with PSAD>0.2 ng ml^(−2)or PI-rADS 4 or 5 lesions had significantly worse upgradingfree survival compared to those with PSAD≤0.2 ng ml−2 and PI-rADS 2 or 3 *** study concludes that AS is a safe andeffective management strategy for selected patients to defer radical treatment and that most disease progression can be detectedafter the first repeated *** combination of PSAD>0.2 ng ml^(−2)and PI-rADS 4 or 5 lesions may serve as a useful predictorof early disease progression and provide a guide to optimize follow-up protocols for men in different risk groups.

关键词： active surveillance cohort localized prostate cancer

Floristic Composition, Population Structure, and recruitment Status of Plant Species: A Case Study of Farmer-Managed Natural regeneration Practices in Arid and Semi-Arid Lands in Kenya

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Forestry 2024年第2期14卷 141-154页

作者： Simon Kosgei Choge Samson Okoth Ojunga Dub Isacko Dokata William Kimen Chepkirui Justus Musau Faith Milkah Muniale ivan Kiplagat Kiptui Kenya Forestry research Institute-rift Valley Eco-region research Program Marigat Kenya Kenya Forestry research Institute-Lake Victoria Eco-region research Program Kisumu Kenya Kenya Forestry research Institute-rift Valley Eco-region research Program Londiani Kenya CrIFSUP Project World Vision Kenya Nairobi Kenya

The technique of Farmer Managed Natural regeneration (FMNr) is being promoted as a cost-effective approach for restoring degraded arable dry lands. Its effectiveness has been observed in many countries across the globe, where it is a traditional practice, and is now being encouraged across the African continent. This study aimed to evaluate the impact of FMNr on floristic Composition, Vegetation Structure, and regeneration Status of woody Plant Species in the severely degraded Central rift, Kenya. The study systematically assessed how FMNr influenced species composition, vegetation structure and regeneration status from two sample plots involved in FMNr practices. Transect lines and quadrats methods were utilized to collect data, specifically regarding the floristic composition, vegetation structure, and regeneration status of woody plant species. Quadrats and sub-quadrats of varying sizes (10 m by 10 m, 5 m by 5 m, and 1 m by 1 m) were nested along the transect lines for data collection. Furthermore, measurements of tree growth and development, including root collar diameter, diameter at breast height (D130) and heights within the study blocks, were taken. The data was then analyzed using r-software. results showed a marked progressive increase in numbers of trees, saplings, seedlings, shrubs and herbs in all FMNr sites and reductions in all non-FMNr sites. The study advocates for widespread promotion of the FMNr practice both as an environmental conservation and restoration strategy.

关键词： Farmer Managed Natural regeneration FMNr Floristic Composition Vegetation Structure regeneration Biodiversity

Global warming scenarios for the Eastern Adriatic Sea indicate a higher risk of invasiveness of non-native marine organisms relative to current climate conditions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Marine Life Science & Technology 2024年第1期6卷 143-154页

作者： Branko Glamuzina Lorenzo Vilizzi Marina Piria Ante Zuljevic Ana Bratos Cetinic Ana Pesic Branko Dragicevic Lovrenc Lipej Marijana Pecarevic Vlasta Bartulovic Sanja Grđan ivan Cvitkovic Tatjana Dobroslavic Ana Fortic Luka Glamuzina Borut Mavric Jovana Tomanic Marija Despalatovic Domen Trkov Marina Brailo Scepanovic Zoran Vidovic Predrag Simonovic Sanja Matic-Skoko Pero Tutman Department of Applied Ecology University of DubrovnikDubrovnikCroatia Department of Ecology and Vertebrate Zoology Faculty of Biology and Environmental ProtectionUniversity of LodzLodzPoland Faculty of Agriculture Department of FisheriesApicultureWildlife Management and Special ZoologyUniversity of ZagrebZagrebCroatia Institute of Oceanography and Fisheries SplitCroatia Institute of Marine Biology University of MontenegroKotorMontenegro National Institute of Biology Marine Biology Station PiranPiranSlovenia Teacher Education Faculty University of BelgradeBelgradeSerbia Faculty of Biology University of BelgradeBelgradeSerbia

Globally,marine bioinvasions threaten marine ecosystem structure and function,with the Mediterranean Sea being one of the most affected *** invasions are expected to increase due to climate *** conducted a risk screening of marine organisms(37 fishes,38 invertebrates,and 9 plants),both extant and‘horizon’(i.e.,not present in the area but likely to enter it).Based on expert knowledge for the Eastern Adriatic Sea coasts of Slovenia,Croatia,and Montenegro,screenings were conducted under both current and predicted climate conditions indicating with an increase in sea surface temperature and salinity of the Adriatic Sea together with changes in precipitation *** aims were to:(1)identify non-native extant and horizon marine species that may pose threats to native biodiversity and(2)evaluate the risk of invasiveness of the selected species under current and predicted climate *** the 84 species screened,there was an increase in those ranked as‘high risk’from 33(39.3%)under current climate conditions and to 47(56.0%)under global warming *** those ranked as‘very high’risk,the increase was from 6(7.1%)to 21(25.0%).Amongst the screened species,the already established high-risk species Pacific oyster Magallana gigas and Atlantic blue crab Callinectes sapidus represent a threat to ecosystem *** the under-representation of marine species in the current European Union List,the species we have ranked as high to very high risk should be included.

关键词： AS-ISK Early detection Introduction vectors/pathways Invasive species rapid response

Influence of Statins and Fibrates Drugs on Bone Health and regeneration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Biomaterials and Nanobiotechnology 2024年第1期15卷 1-24页

作者： Octavio Santiago ivan Nadir Camal ruggieri Marina ribeiro Paulini Valéria Paula Sassoli Fazan João Paulo Mardegan Issa Sara Feldman LABOATEM Laboratory of Bone Biology and Tissue Engineering School of Medicine Rosario National University Ros&#225rio Argentina School of Dentistry of ribeirã o Preto University of S&#227o Paulo (FORP/USP) Ribeir&#227o Preto S&#227o Paulo Brazil School of Medicine of ribeirã o Preto University of S&#227o Paulo (FMRP/USP) Ribeir&#227o Preto S&#227o Paulo Brazil

In the medical and dental field, the importance and need for the study of materials and drugs for use as bone grafts or regeneration in injured areas due to the presence of fractures, infections or tumors that cause extensive loss of bone tissue is observed. Bone is a specialized, vascularized and dynamic connective tissue that changes throughout the life of the organism. When injured, it has a unique ability to regenerate and repair without the presence of scars, but in some situations, due to the size of the defect, the bone tissue does not regenerate completely. Thus, due to its importance, there is a great development in therapeutic approaches for the treatment of bone defects through studies that include autografts, allografts and artificial materials used alone or in association with bone grafts. Pharmaceuticals composed of biomaterials and osteogenic active substances have been extensively studied because they provide potential for tissue regeneration and new strategies for the treatment of bone defects. Statins work as specific inhibitors of 3-hydroxy-3-methyl-glutaryl coenzyme A reductase (HMG-CoAreductase). They represent efficient drugs in lowering cholesterol, as they reduce platelet aggregation and thrombus deposition;in addition, they promote angiogenesis, reduce the β-amyloid peptide related to Alzheimer’s disease and suppress the activation of T lymphocytes. Furthermore, these substances have been used in the treatment of hypercholesterolemia and coronary artery disease. By inhibiting HMG-CoAreductase, statins not only inhibit cholesterol synthesis, but also exhibit several other beneficial pleiotropic effects. Therefore, there has been increasing interest in researching the effects of statins, including Simvastatin, on bone and osteometabolic diseases. However, statins in high doses cause inflammation in bone defects and inhibit osteoblastic differentiation, negatively contributing to bone repair. Thus, different types of studies with different conc

关键词： Bone Statins rosuvastatin Sinvastatin Fibrates Fenofibrate Bone regeneration