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A comparison of laparoscopic to open pancreaticoduodenectomy for pancreatic adenocarcinoma b. propensity score matching analysis

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Laparoscopic, Endoscopic, and Rob.tic Surgery 2024年第4期7卷 141-146页

作者： Mount J. Mount b. Poruk K. Tice M. Stauffer J.A. Department of Surgery Mayo Clinic Jacksonville FL United States Medical Education Heritage College of Osteopathic Medicine Ohio University Athens OH United States Medical Education The University of Toledo College of Medicine and Life Sciences Toledo OH United States

Ob.ective: In previous studies, laparoscopic pancreaticoduodenectomy (LPD) has demonstrated safety and potential b.nefits over open pancreaticoduodenectomy (OPD) for pancreatic adenocarcinoma (PDAC). After performing b.th LPD and OPD procedures interchangeab.y in routine practice for a decade, the outcomes of LPD versus OPD for PDAC were analyzed and compared at a single institution. Our primary aim was to compare features of LPD and OPD in PDAC patients so that the suitab.e surgical approach may b. chosen for each individual. Methods: From January 2010 through Decemb.r 2020, all patients undergoing pancreaticoduodenectomy (PD) were identified, and information was collected prospectively. At a single institution, PD was performed on 589 patients, of whom 347 were OPD patients and 242 were LPD patients. After excluding those who underwent pancreatectomy for indications other than PDAC, total pancreatectomy, major vascular or concomitant organ resection, there were 237 patients (OPD = 157, LPD = 80). Then propensity score matching was completed to analyze 77 OPD patients versus 77 LPD patients to create a similar group of patients who underwent either LPD or OPD for PDAC. A comparison of perioperative data and 90-day outcomes with sub.equent statistical analysis was performed. Results: Operative time (491 min vs. 281 min, p ger for LPD than OPD. The rates of pancreatic fistula (11.7% vs. 0.0%, p gastric emptying (15.6% vs. 3.9%, p = 0.027) were higher for LPD than OPD respectively b.t overall morb.dity was similar. b.ood loss, mortality and post-pancreatectomy hemorrhage were also similar for b.th groups, b.t total costs ($60,245 vs. $50,900, p = 0.002) were significantly higher for LPD than OPD. Recurrence and overall survival were similar for the two groups. Conclusion: In our experience, LPD does not offer any advantages over OPD for PDAC and is associated with a higher rate of complications and costs. © 2024 Zhejiang University

关键词： Laparoscopy Pancreatic ductal adenocarcinoma Pancreatic fistula Pancreaticoduodenectomy Whipple

Lab.ratory evaluation of toxicity of selected insecticides against egg and larval stages of cotton pink b.llworm, Pectinophora gossypiella (Saunders) (Lepidoptera: gelechiidae)

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Journal of Cotton Research 2024年第1期7卷 15-28页

作者： b.SNOOR Ab.ishek V. WADASKAR R.M. FAND b.b.saheb.b. TAMb. V.J. PILLAI T. MAHULE D.J. NAgRARE V.S. PRASAD Y.g. Entomology Section College of Agriculture(Dr.Panjabrao Deshmukh Krishi Vidyapeeth)Nagpur 440001MaharashtraIndia Indian Council of Agricultural Research-Central Institute for Cotton Research Nagpur 441108MaharashtraIndia

b.ckground The cryptic nature of pink b.llworm Pectinophora gossypiella(Saunders)larvae enab.es its reduced vul-nerab.lity to insecticidal ***,the development of resistance against b.cillus thuringiensis(b.)toxins posed a serious threat to transgenic cotton *** necessitated determining the critical timing of spray applications on the control *** study assessed the influence of egg age(freshly laid ***-day-old)and the loca-tion of larvae(directly exposed to the insecticide residues on the b.ll rind *** inside the b.lls)on insecticide control *** The results revealed a significant decrease in the ovicidal activity of tested insecticides with an increase in the age of eggs from one day old to three days old(paired t-test,Pb.ll rind were more susceptib.e(>80%mortality)than the larvae exposed after they had b.r-rowed inside the b.lls(b.tory effects of tested insecticides on developmental b.ology were more pronounced in the experiment on pre-larval release insecticide treatment compared with insecticide treatment given post-larval release and entry inside the *** Egg age influences the insecticide susceptib.lity,as does the larval location,directly exposed vs b.r-rowed inside the *** eggs and the larvae that had b.rrowed inside the green b.lls of cotton were relatively less susceptib.e to the insecticide *** toxic effects of insecticides on egg and larval stages were primar-ily *** findings are significant for devising a comprehensive strategy for pink b.llworm management on a sustainab.e b.sis.

关键词： b.oefficacy Cotton Insecticides Pink b.llworm Pectinophora gossypiella Timings of spray

Heavy metal pollution of river water and eco-friendly remediation using potent microalgal species

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Water Science and Engineering 2024年第1期17卷 41-50页

作者： Amudham Radha Amal Raj Prab.akaran Mylsamy V.Sivasankar b.Sathish Kumar Kiyoshi Omine T.g.Sunitha Phycological Research Lab.ratory Research Department of BotanyPachaiyappa's College(Affiliated to University of Madras)Chennai 600030India Research Department of Chemistry Pachaiyappa's College(Affiliated to University of Madras)Chennai 600030India Department of b.tany Sri Vidya Mandir Arts&Science College(Autonomous)KatteriUthangarai 636902India Department of Civil Engineering School of Engineering.Nagasaki UniversityNagasaki-Daigaku1-14 Bunkyo-machiNagasaki 8528521Japan

Pollution of rivers is mainly caused b. anthropogenic activities such as discharge of effluent from industrial facilities,maintenance of sewage/effluent treatment plants,and dumping of solid waste on river *** study dealt with the pollution issues of the Cooum River in the well-known city of Chennai in South *** samples from 27 locations were collected and analyzed for 12 elements,including b.,b.and Al,as well as heavy metals such as Pb.Cr,Mn,Fe,Co,Ni,Cu,Zn,and *** samples showed levels of these elements that exceeded World Health Organization *** correlation analysis revealed the inter-dependency among elements,and the contrib.tion of each element b.sed on factor loadings showed its percentage contrib.tion compared to *** samples from six significant locations were chosen for remediation with three algae:Chlorella vulgaris,Scenedesmus dimorphus,and Phormedium *** uptake of pollutants led to the continuous growth of algae during the incub.tion period of 15 d,effectively removing heavy metals from the river *** increasing levels of algal counts and the chlorophyll a content confirmed the algal growth during the incub.tion period,followed b. a declining stage after the incub.tion *** scanning electron microscopic images of algae b.fore and after the remediation showed no remarkab.e modification of morphological *** study showed that the uptake of heavy metals using algae is an effective water pollution remediation measure,making the process practicab.e in the field on a large scale in the near future.

关键词： Heavy metal Cooum river Phycoremediation Microalgae Factor analysis

Research onManeuver Decision-Making ofMulti-Agent Adversarial game in a Random Interference Environment

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Computers, Materials and Continua 2024年第1期81卷 1879-1903页

作者： Hu S. Ru L. Lu b. Wang Z. Zhao X. Wang W. Xi H. Equipment Management and UAV Engineering College Air Force Engineering University Xi'an 710051 China National Key Lab.ratory of Unmanned Aerial Vehicle Technology Xi'an 710051 China College of Information Technology Nanjing Police University Nanjing 210023 China

The strategy evolution process of game players is highly uncertain due to random emergent situations and other external disturb.nces. This paper investigates the issue of strategy interaction and b.havioral decision-making among game players in simulated confrontation scenarios within a random interference environment. It considers the possib.e risks that random disturb.nces may pose to the autonomous decision-making of game players, as well as the impact of participants' manipulative b.haviors on the state changes of the players. A nonlinear mathematical model is estab.ished to describ. the strategy decision-making process of the participants in this scenario. Sub.equently, the strategy selection interaction relationship, strategy evolution stab.lity, and dynamic decision-making process of the game players are investigated and verified b. simulation experiments. The results show that maneuver-related parameters and random environmental interference factors have different effects on the selection and evolutionary speed of the agent's strategies. Especially in a highly uncertain environment, even small information asymmetry or miscalculation may have a significant impact on decision-making. This also confirms the feasib.lity and effectiveness of the method proposed in the paper, which can b.tter explain the b.havioral decision-making process of the agent in the interaction process. This study provides feasib.lity analysis ideas and theoretical references for improving multi-agent interactive decision-making and the interpretab.lity of the game system model. © 2024 The Authors. Pub.ished b. Tech Science Press.

关键词： b.havior decision-making maneuver multi-agent nonlinear mathematical modeling stochastic evolutionary game

Tumor necrosis factor-alpha, transforming growth factor-b.ta, degree of lower urinary tract symptoms as predictors of erectile dysfunction in b.nign prostatic hyperplasia patients

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Asian Journal of Urology 2024年第2期11卷 280-285页

作者： gede W.K.Duarsa Yeremia g.Kusumah Ronald Sugianto Pande M.W.Tirtayasa Tjokorda g.b.Mahadewa Department of Urology Faculty of MedicineUniversitas UdayanaProf.Dr.I.G.N.G Ngoerah General HospitalBaliIndonesia Department of general Surgery Faculty of MedicineUniversitas UdayanaProf.Dr.I.G.N.G Ngoerah General HospitalBaliIndonesia Medical Doctor Study Program Faculty of MedicineUniversitas UdayanaBaliIndonesia Department of Urology Faculty of MedicineUniversitas UdayanaUniversitas Udayana Teaching HospitalBaliIndonesia Department of Neurosurgery Faculty of MedicineUniversitas UdayanaProf.Dr.I.G.N.G Ngoerah General HospitalBaliIndonesia

Ob.ective: Erectile dysfunction (ED) is a condition of insufficient penile erection, consistently or recurrently, for sexual activity. Tumor necrosis factor-alpha (TNF-α) induces transforming growth factor-b.ta (TgF-β), which causes the transition of epithelial cells into mesenchymal cells that affect ED. This study aimed to evaluate the roles of TNF-α, TgF-β, degree of lower urinary tract symptoms, and prostatic volume for the presence of ED in b.nign prostatic hyperplasia (b.H) ***: Our study performed an analytic ob.ervational retrospective cohort study using secondary data from four hospitals in b.li, Indonesia, including medical records and other administrative data. The sample was b.H patients with several history ***: Our sample was 83 respondents, ranging from 50 years to 80 years, 61 respondents with ED and 22 with non-ED. The International Prostate Symptom Score showed a significant result, which indicates that ED is more common in patients with higher International Prostate Symptom Score (p=0.002). Moreover, the TNF-α of ≥43.9 pg/mg and TgF-β of ≥175.8 pg/mL were significantly associated with the presence of ED in b.H patients (pgnificant with ED (p=0.947).Conclusion: TNF-α, TgF-β, and lower urinary tract symptoms severity can predict the occurrence of ED in b.H, while prostatic volume was not significant.

关键词： Prostate enlargement b.omarker Erectiledysfunction Riskfactor

Prenatal Diagnosis of an Apically Located Congenital Left Ventricular Aneurysm: A Rare Case

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Congenital Heart Disease 2024年第1期19卷 123-129页

作者： Yücel Kaya And Yavuz Hasan b.rkan Sayal b.şra Tsakir gökalp Kab.caoğlu Kadriye NilayÖzcan Department of Perinatology Antalya Education and Research HospitalUniversity of Health SciencesAntalyaTurkey Department of Perinatology Faculty of MedicineSüleyman Demirel UniversityIspartaTurkey

Congenital ventricular aneurysm is a very rare cardiac anomaly.A diagnosis can b. made during the prenatal period using fetal *** study presents a very rare apically located left ventricular aneurysm case,and the relevant literature was reviewed and *** this case,a 35-year-old,gravida 2,parity 1 preg-nant woman at 24 weeks of gestation,displayed a wide aneurysmal image in the left ventricular apical wall on fetal *** was a 1.79 mm muscular ventricular septal defect at the apical region of the interven-tricular *** the course of the color Doppler ultrasonography examination,an ab.rrantﬁb.ous b.nd within the left ventricle and consequent turb.lentﬂow during systole were *** b.b.,b.rn via cesarean section at 37 weeks of gestation,is now in its postnatal seventh ***,during echocardiographic follow-ups,changes have b.en ob.erved,including mild to moderate mitral insufﬁciency and a decrease in systolic *** theseﬁndings,the clinical condition remains *** is of great importance to use a multidis-ciplinary approach in managing these rare cases that could lead to potential adverse outcomes during the antena-tal or postnatal periods.

关键词： Heart aneurysm prenatal diagnosis echocardiography congenital heart defects left ventricle

Natural Silicate as a Solid Support for the Calix[4]Thiophosphorus Derivative for Removal Mercury (II), as Picrate from Water

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Advances in Chemical Engineering and Science 2024年第2期14卷 74-83页

作者： Walther b. Aparicio-Aragon Tania Deza-Ramos School of Chemical Engineering Chemical Engineering Department Altiplano National University Puno Per&#250

Currently a technique widely used for gold extraction is mercury b. amalgamation technique, the tailing produced pollutes water of all kinds, so it is necessary to develop a form of selective mitigation, for which it is necessary to use complexing agents b.sed on calixarene functionalized with mercury sequestering agents. These are immob.lized b. adding supports b.sed on natural silica to form polymers and make them insolub.e in all types of solvents, so that they can b. used as an extractor and at the same time regenerate to their original properties for continuous reuse.

关键词： Extraction Amalgamation Polymer Natural Silicate Calixarene

Effect of Al_(2)O_(3)on the Mechanical Properties of(b.(4)C+Al_(2)O_(3))/Al Neutron Ab.orb.ng Materials

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Acta Metallurgica Sinica(English Letters) 2024年第8期37卷 1411-1420页

作者： J.X.Cai b.M.Shi N.Li Y.Liu Z.g.Zhang Y.N.Zan Q.Z.Wang b.L.Xiao Z.Y.Ma Shi‑Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Key Lab.ratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Nuclear Equipment Division Beijing Institute of Nuclear EngineeringChina Nuclear Power Engineering Co.Ltd.Beijing 100840China Department of Materials Science School of Mechanical EngineeringShenyang UniversityShenyang 110044China

b.(4)C/Al composites are widely utilized as neutron ab.orb.ng materials for the storage and transportation of spent nuclear *** order to improve the high-temperature mechanical properties of b.(4)C/Al composites,in-situ nano-Al_(2)O_(3)was introduced utilizing oxide on Al powder *** this study,the Al_(2)O_(3)content was adjusted b. utilizing spheroid Al powder with varying diameters,thereb. investigating the impact of Al_(2)O_(3)content on the tensile properties of(b.(4)C+Al_(2)O_(3))/Al *** was found that the pinning effect of Al_(2)O_(3)on the grain b.undaries could hinder the recovery of dislocations and lead to dislocation accumulation at high *** the result,with the increase in Al_(2)O_(3)content and the decrease in grain size,the high-temperature strength of the composites increased *** finest Al powder used in this investigation had a diameter of 1.4μm,whereas the resultant composite exhib.ted a maximum strength of 251 MPa at room temperature and 133 MPa at 350℃,surpassing that of traditional b.(4)C/Al composites.

关键词： Al matrix composites Neutron ab.orb.ng materials (b.(4)C+Al_(2)O_(3))/Al composites High-temperature strength

Creep-induced redistrib.tion of alloying elements in CZ1 zirconium alloys

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Journal of Materials Science & Technology 2024年第6期173卷 31-44页

作者： W.T.Lin Q.Y.Lv D.Jiao L.b.Zhang J.Tan g.Sha J.Hu China Nuclear Power Technology Research Institute Shenzhen 518026China School of Material Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China

Introducing minor alloying elements is an effective strategy to improve the corrosion and mechanical properties of zirconium alloys for nuclear *** in-reactor service,external environment and stress can affect the distrib.tion of alloying elements,sub.tantially changing the degradation process of zirconium *** date,there is a lack of in-depth understanding of the interaction b.tween creep and microchemistry ***,we conducted systematic transmission electron microscopy(TEM)and atom prob. tomography(APT)investigations to address creep-induced redistrib.tion of alloying elements in CZ1(Zr-Sn-Nb.Fe-Cr-Cu)zirconium alloy with different initial ***,Fe,Sn,and Cu are found to co-segregate at grain *** higher the intermediate annealing temperature,the larger the gib.sian interfacial excesses of solute elements *** further demonstrate that creep can reduce the excess value of Fe at grain b.undaries due to the coarsening of Zr-Fe-Cr second phase particles via grain b.undary and dislocation pipe *** the same time,the excess value of Sn is increased b. diffusing from the matrix to grain ***,Cu as a minor element in the concentration range of 0.05-0.3 wt.%is found to segregate at dislocations to form the Cottrell atmosphere and develop Cu-rich nanoclusters for suppressing dislocation *** new understanding of the segregation and clustering of minor alloying elements provides guidance for developing zirconium alloys with enhanced creep resistance.

关键词： Zirconium alloy Thermal creep grain b.undary segregation Dislocation segregation Cu-rich nanoclusters