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Electronic and thermoelectric properties of YbMg_(2)X_(2)(X=P,As,Sb,Bi)zintl compounds by first-principles method

Journal of Rare Earths 2024年第1期42卷 147-154,I0006页

作者： Sajid Khan Dil Faraz Khan R.Neffati Tariq Usman Muhammad Waqar Ahsraf Shamim Khan Saeed Ullah jan G.Murtaza Department of Physics University of Science&Technology BannuBannu28100Pakistan Department of Physics Faculty of ScienceKing Khalid UniversityP.O.Box 9004AbhaSaudi Arabia Laboratoire de Physique de La Matiere Condensee Departement de PhysiqueFaculte des Sciences de TunisUniversite Tunis El ManarCampus Universitaire1060TunisTunisia Department of Physics Shaoxing UniversityShaoxing312000China Department of Mathematics&Natural Sciences Prince Mohammad Bin Fahd UniversityAlkhobar31952Saudi Arabia Materials Modeling Lab Department of PhysicsIslamia College Peshawar25120KhyberPakhtunkhwaPakistan

In this work the structural,electronic and thermoelectric properties of YbMg_(2)X_(2)(X=P,As,Sb,Bi)zintl compounds were investigated comprehensively using first principles *** electronic properties were studied using PBE GGA,TB-mBJ and hybrid(YS-PBE0)*** the structural parameters of optimized structures are in harmonious agreement to the available *** band structure study illustrates that the titled materials manifest metallic and semi metallic nature using PBE and TB-mBJ potentials while they show wide band gap semiconducting behavior by following hybrid(YS-PBE0)*** density of states(TDOS)and partial density of states(PDOS)were also calculated to glimpse the contribution of orbitals of atoms in the formation of *** properties were studied by using BoltzTraP2 code employed to *** get enormous values of Seebeck coefficient(S),power factor(PF)and thermoelectric figure of merit(ZT)for all the samples YbMg_(2)X_(2)(X=P,As,Sb,Bi),Moreover,the overwhelming transport properties for the titled compounds indicate the optimum level of carriers’concentration which pinpoints these materials to be better thermoelectrics in the 1-2-2 zintl family.

关键词： Zintl compounds Hybrid functional Band structure Thermoelectrics Rare earths

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A Room-Temperature Chloride-Conducting Metal-Organic Crystal[Al(DMSO)_(6)]Cl_(3) for Potential Solid-State Chloride-Shuttle Batteries

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Energy & Environmental Materials 2024年第1期7卷 107-113页

作者： Bing Wu jan Luxa Jiří Šturala Shuangying Wei Lukáš Děkanovský Abhilash Karuthedath Parameswaran Min Li Zdenek Sofer Department of Inorganic Chemistry University of Chemistry and Technology PragueTechnická 516628Prague Czech Republic

The growing demand for substitutes of lithium chemistries in battery leads to a surge in budding novel anion-based electrochemical energy storage,where the chloride ion batteries(CIBs)take over the *** application of CIBs is limited by the dissolution and side reaction of chloride-based electrode materials in a liquid *** the flipside,its solid-state electrolytes are scarcely reported due to the challenge in realizing fast Cl^(-)*** present study reports[Al(DMSO)_(6)]Cl_(3),a solid-state metal-organic material,allows chloride ion *** strong Al-Cl bonds in AlCl_(3)are broken down after coordinating of Al^(3+)by ligand DMSO,and Cl^(-)in the resulting compound is weakly bound to complexions[Al(DMSO)_(6)]^(3+),which may facilitate Cl^(-)*** partial replacement of Cl^(-)with PF_(6)^(-),the room-temperature ionic conductivity of as-prepared electrolyte is increased by one order of magnitude from 2.172×10^(-5)S cm^(-1)to 2.012×10^(-4)S cm^(-1).When they are assembled with Ag(anode)/Ag-AgCl(cathode)electrode system,reversible electrochemical redox reactions occur on both sides,demonstrating its potential for solid-state chloride ion *** strategy by weakening the bonding interaction using organic ligands between Cl^(-)and central metallic ions may provide new ideas for developing solid chloride-ion conductors.

关键词： [Al(DMSO)_(6)]Cl_(3) chloride-ion batteries ionic conductivity metal-organic solid-state electrolytes

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Epidemiology of insertional and midportion Achilles tendinopathy in runners:A prospective cohort study

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Journal of Sport and Health Science 2024年第2期13卷 256-263页

作者： Wenbo Chen Kyra L.A.Cloosterman Sita M.A.Bierma-Zeinstra Marienke van Middelkoop Robert-jan de Vos Department of Orthopaedic Surgery and Sports Medicine Erasmus MC University Medical CenterRotterdam 3015GDthe Netherlands Department of General Practice Erasmus MC University Medical CenterRotterdam 3015GDthe Netherlands Department of Sports Medicine Huashan HospitalFudan UniversityShanghai 200040China

Background:Achilles tendinopathy(AT)is a common problem among *** is only limited evidence for risk factors for AT,and most studies have not defined the AT *** study has compared the incidence and risk factors between insertional AT and midportion AT,though they are considered *** study aimed to assess incidence and risk factors of AT based on data from a large prospective *** secondary aim was to explore differences in risk factors between insertional and midportion ***:Participants were recruited from among registered runners at registration for running *** were completed at baseline,1 month before the event,1 week before the event,and 1 month after the *** concerning demographics,training load,registered events,and running-related injuries were collected at *** follow-up questionnaires collected information about new injuries.A pain map was used to diagnose midportion and insertional *** primary outcome was the incidence of *** logistic regression analysis was applied to identify risk factors for the ***:We included 3379 participants with a mean follow-up of 20.4 *** incidence of AT was 4.2%.The proportion of insertional AT was 27.7%and of midportion AT was 63.8%;the remaining proportion was a combined type of insertional and midportion *** had a significantly higher incidence(5%,95%confidence interval(95%CI):4.1%-6.0%)than women(2.8%,95%CI:2.0%-3.8%).AT in the past12 months was the most predominant risk factor for new-onset AT(odds ratio(OR)=6.47,95%CI:4.27-9.81).This was similar for both subcategories of AT(insertional:OR=5.45,95%CI:2.51-11.81;midportion:OR=6.96,95%CI:4.24-11.40).Participants registering for an event with a distance of 10/10.55 km were less likely to develop a new-onset AT(OR=0.59,95%CI:0.36-0.97)or midportion AT(OR=0.47,95%CI:0.23-0.93).Higher age had a significant negative association with insertional AT(OR=0.97,95%CI:0.9

关键词： Achilles tendon injury Incidence Risk factor Running-related injury

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Elevated fluid and glycosaminoglycan content in the Achilles tendon contribute to higher intratendinous pressures:Implications for Achilles tendinopathy

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Journal of Sport and Health Science 2024年第6期13卷 863-871页

作者： Lauren Pringels Gert-jan Van Valckenborgh Patrick Segers Amelie Chevalier Hedwig Stepman Evi Wezenbeek Arne Burssens Luc Vanden Bossche Department of Physical and Rehabilitation Medicine Ghent University HospitalGhent 9000Belgium Department of Rehabilitation Sciences and Physiotherapy Ghent UniversityGhent 9000Belgium Department of Electronics and Information Systems Ghent UniversityGhent 9000Belgium Department of Electromechanics University of AntwerpAntwerp 2020Belgium Department of Laboratory Medicine Ghent University HospitalGhent 9000Belgium Department of Orthopedic Surgery Ghent University HospitalGhent 9000Belgium

Background:Tendinopathy alters the compositional properties of the Achilles tendon by increasing fluid and glycosaminoglycan *** has been speculated that these changes may affect intratendinous pressure,but the extent of this relationship remains ***,we aimed to investigate the impact of elevated fluid and glycosaminoglycan content on Achilles tendon intratendinous pressure and to determine whether hyaluronidase(HYAL) therapy can intervene in this potential ***:Twenty paired fresh-frozen cadaveric Achilles tendons were mounted in a tensile-testing machine and loaded up to 5% *** resting(at 0% strain) and dynamic pressure(at 5% strain) were assessed using the microcapillary infusion ***,intratendinous pressure was measured under native conditions before and after infusion of 2 mL physiological ***,80 mg of glycosaminoglycans were administered bilaterally to the paired *** right tendons were additionally treated with 1500 units of ***,both groups were retested,and the glycosaminoglycan content was ***:It was found that both elevated fluid and glycosaminoglycan content resulted in higher intratendinous resting and dynamic pressures(p <0.001).HYAL treatment induced a 2.3-fold reduction in glycosaminoglycan content(p=0.002) and restored intratendinous ***:The results of this study demonstrated that elevated fluid and glycosaminoglycan content in Achilles tendinopathy contribute to increased intratendinous re sting and dynamic pressures,which can be explained by the associated increased volume and reduced permeability of the tendon matrix,*** degrades glycosaminoglycans sufficiently to lower intratendinous pressures and may,therefore,serve as a promising treatment.

关键词： Achilles tendon Achilles tendinopathy Intratendinous pressure Glycosaminoglycans Tendon fluid

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The g-factor measurement as an ultimate test for nuclear chirality

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Frontiers of physics 2024年第3期19卷 1-10页

作者： Ernest Grodner Michał Kowalczyk Julian Srebrny Leszek Próchniak Chrystian Droste jan Kownacki Maciej Kisieliński Krzysztof Starosta Takeshi Koike National Centre for Nuclear Research 05-540ŚwierkPoland Heavy Ion Laboratory University of WarsawPasteura 5a02-093 WarsawPoland Faculty of Physics University of WarsawPasteura 502-093 WarsawPoland Simon Fraser University 8888 University Drive BurnabyB.C.Canada V5A 1S6 Department of Physics Tohoku UniversitySendaiMiyagi 980-8577Japan

We present results of a series of experiments aimed at finding the most direct fingerprints of a phenomenon of nuclear chirality. These experiments brought a detailed knowledge of the so called partner bands in 132La, 128Cs and 126Cs including absolute values of E2 and M1 transition probabilities obtained through the DSA (Doppler Shift Attenuation) method. Considering the indirect character of observables such as energies and transition rates we proposed measurement of the g-factor of a chosen state as a direct, ultimate test of chirality. Our experiment on the bandhead of partner bands in 128Cs showed feasibility of this approach. Measured value of the g-factor which suggests non-chiral character of this state leads to another puzzle in the chirality studies — how the chirality emerges with increasing spin of levels along a partner band.

关键词： nuclear chirality electromagnetic transitions electromagnetic moments level lifetimes

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Realism, Normativity and Professor Mearsheimer

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Philosophy Study 2024年第2期14卷 63-65页

作者： jan-Erik Lane Geneva University GenevaSwitzerland

International relations or politics are a dynamic discipline within politics. It concentrates upon the understanding or explanation of conflict and power between nations or countries. It is of course highly relevant today with much warfare or threats thereof. One central theory is the so-called realism or neorealism. Its foremost representative today is Professor Mearsheimer. Professor John Mearsheimer has put several of his well-known lectures on YouTube. In these he spells out how he looks upon international politics today through a neorealist approach. Very much worth listening to, we must though question consistency in his message.

关键词： War conflict between nations neorealism

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Dielectric and physico-chemical behavior of single thermally thick wood blocks under microwave assisted pyrolysis

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Particuology 2024年第3期86卷 291-303页

作者： Nicole Vorhauer-Huget Jakob Seidenbecher Supriya Bhaskaran Francesca Schenkel Lucas Briest Suresh Gopalkrishna jan Barowski Andrea Dernbecher Liane Hilfert Ilona Rolfes Alba Dieguez-Alonso Otto von Guericke University Magdeburg Universitatsplatz 239106MagdeburgGermany Ruhr University Bochum Institute of Microwave SystemsUniversitatsstraβe 15044801BochumGermany

Pyrolysis of thermally thick beech wood blocks with a size of around 2.5×8×6 cm^(3)(width×length×height)was carried out in a lab scale microwave reactor with a frequency of 2.45 GHz,operated,both,at 300 W and 600 W under inert conditions,using N_(2) at around 400 mbar absolute *** microwave cavity had a size of 20×20×20 cm^(3).The specific energy supply referred to the untreated wood block was 4-8 W/g,with slight variations depending on the initial water *** mass loss and the reflected microwave power were in-situ monitored during the *** sample surface and chamber temperatures were measured with a pyrometer and a thermocouple,***-chemical and dielectric properties of the produced solids were investigated and compared to those of chars produced under conventional pyrolysis using the same raw *** is shown that the complex dielectric permittivity of the solid products changed drastically during the pyrolysis process,with increasing heating properties as the conversion process *** was easily achieved using 60o W without ***,300 W was not enough to achieve a high conversion degree,independently of the irradiation ***,together with the physico-chemical analyses of the solids,hinted to the importance of the transport kinetics in thermally thick materials,although further investigationis still required.

关键词： Microwave assistedpyrolysis Conventional pyrolysis Dielectric measurements Penetration depth Elemental analysis

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Importance of timely and adequate source control in sepsis and septic shock

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Journal of Intensive Medicine 2024年第3期4卷 281-286页

作者： jan J.De Waele Department of Intensive Care Medicine Ghent University HospitalGhentBelgium Department of Internal Medicine and Pediatrics Faculty of Medicine and Health SciencesGhent UniversityGhentBelgium

Source control is defined as the physical measures undertaken to eliminate the source of infection and control ongoing contamination, as well as restore anatomy and function at the site of infection. It is a key component of the management of patients with sepsis and septic shock and one of the main determinants of the outcome of infections that require source control. While not all infections may require source control, it should be considered in every patient presenting with sepsis;it is applicable and necessary in numerous infections, not only those occurring in the abdominal cavity. Although the biological rationale is clear, several aspects of source control remain under debate. The timing of source control may impact outcome;early source control is particularly relevant for patients with abdominal infections or necrotizing skin and soft tissue infections, as well as for those with more severe disease. Percutaneous procedures are increasingly used for source control;nevertheless, surgery—tailored to the patient and infection—remains a valid option for source control. For outcome optimization, adequate source control is more important than the strategy used. It should be acknowledged that source control interventions may often fail, posing a challenge in this setting. Thus, an individualized, multidisciplinary approach tailored to the infection and patient is preferable.

关键词： Sepsis Septic shock Source control Drainage Debridement

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Nonsteroidal anti-inflammatory drugs before endoscopic ultrasound guided tissue acquisition to reduce the incidence of post procedural pancreatitis

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World Journal of Gastroenterology 2024年第8期30卷 811-816页

作者： Mike de Jong Foke van Delft Christine Roozen Erwin-jan van Geenen Tanya Bisseling Peter Siersema Marco Bruno Department of Gastroenterology and Hepatology Radboud University Medical CenterNijmegen 6525 GANetherlands Department of Gastroenterology and Hepatology Erasmus University Medical CenterRotterdam 3015 GDNetherlands

Endoscopic ultrasound(EUS)with fine needle aspiration or fine needle biopsy is the gold standard for sampling tissue to diagnose pancreatic cancer and auto-immune pancreatitis or to analyze cyst *** most common reported adverse event of fine needle aspiration and/or fine needle biopsy is acute pancreatitis,which is likely induced by the same pathophysiological mechanisms as after en-doscopic retrograde cholangiopancreatography(ERCP).According to the current European Society of Gastrointestinal Endoscopy guideline,nonsteroidal anti-inflammatory drugs are administered prior to ERCP as a scientifically proven treatment to reduce post-ERCP pancreatitis incidence rate.A single suppository of diclofenac or indomethacin prior to EUS guided tissue acquisition(TA)is harm-less in healthy *** it is associated with low costs and,most important,may prevent a dreadsome complication,we strongly recommend the adminis-tration of 100 mg diclofenac rectally prior to *** will explain this recom-mendation in more detail in this review as well as the risk and pathophysiology of post-EUS TA pancreatitis.

关键词： Pancreatitis Endoscopic ultrasound Tissue acquisition Nonsteroidal antiinflammatory drugs Pancreatic cancer

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Clinical associations of corneal neuromas with ocular surface diseases

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Neural Regeneration Research 2024年第1期19卷 140-147页

作者： Charmaine jan Li Toh Chang Liu Isabelle Xin Yu Lee Molly Tzu Yu Lin Louis Tong Yu-Chi Liu Lee Kong Chian School of Medicine Nanyang Technological UniversitySingapore Singapore Eye Research Institute Singapore Department of Cornea and External Eye Disease Singapore National Eye CentreSingapore Ophthalmology and Visual Sciences Academic Clinical Program Duke-NUS Medical SchoolSingapore

Corneal neuromas,also termed microneuromas,refer to microscopic,irregula rly-shaped enlargements of terminal subbasal nerve endings at sites of nerve damage or *** formation of corneal neuromas results from damage to corneal nerves,such as following corneal pathology or corneal or intraocular surge ***,denervated areas of sensory nerve fibers become invaded by sprouts of intact sensory nerve fibers,and later injured axons regenerate and new sprouts called neuromas *** recent years,analysis of corneal nerve abnormalities including corneal neuromas which can be identified using in vivo confocal microscopy,a non-invasive imaging technique with microscopic resolution,has been used to evaluate corneal neuropathy and ocular surface *** neuromas have been shown to be associated with clinical symptoms of discomfort and dryness of eyes,and are a promising surrogate biomarker for ocular surface diseases,such as neuropathic corneal pain,dry eye disease,diabetic corneal neuropathy,neurotrophic keratopathy,Sjogren's syndrome,bullous keratopathy,post-refra ctive surgery,and *** this review,we have summarized the current literature on the association between these ocular surface diseases and the presentation of corneal microneuromas,as well as elaborated on their pathogenesis,visualization via in vivo confocal microscopy,and utility in monitoring treatment *** current quantitative analysis on neuromas mainly relies on manual annotation and quantification,which is user-dependent and labor-intensive,future direction includes the development of artificial intelligence software to identify and quantify these potential imaging biomarkers in a more automated and sensitive manner,allowing it to be applied in clinical settings more *** imaging and molecular biomarkers may also help elucidate the associations between corneal neuromas and ocular surface diseases.

关键词： cornea corneal diseases corneal nerve corneal neuropathy in vivo confocal microscopy microneuroma neuroma ocular surface diseases

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