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高压电缆中铠装损耗的三维模拟

电气时代 2024年第6期 16-19页

作者： BRIANNE christopher COMSOL公司

位于瑞典卡尔斯克鲁纳的NKT公司使用数值模型来研究电磁场,并计算了三维电缆设计中的铠装损耗。他们通过实验测量,对仿真结果的准确性进行了验证。全球线缆行业的市场价值高达数千亿美元。据Infinium Global Research报道,截至2025年,... 详细信息

位于瑞典卡尔斯克鲁纳的NKT公司使用数值模型来研究电磁场,并计算了三维电缆设计中的铠装损耗。他们通过实验测量,对仿真结果的准确性进行了验证。全球线缆行业的市场价值高达数千亿美元。据Infinium Global Research报道,截至2025年,电缆市场规模有望达到2200亿美元~([1])。

关键词：高压电缆卡尔斯克鲁纳线缆行业三维模拟电缆设计数值模型

在芝加哥尽享世界美食——男子希望不离乡就能吃遍世界各国料理

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空中英语教室（高级版．彭蒙惠英语） 2024年第2期 28-29,46,47页

作者： christopher Borrelli 不详

我初次与凯姆·布兰森见面时,他正进行到字母E开头的国家:爱沙尼亚、厄立特里亚和埃及。我们的午餐是埃塞俄比亚料理,他打算第二天吃厄瓜多尔料理。布兰森已经试过智利、古巴、喀麦隆和克罗地亚料理,接下来还规划了芬兰、斐济、密克罗... 详细信息

我初次与凯姆·布兰森见面时,他正进行到字母E开头的国家:爱沙尼亚、厄立特里亚和埃及。我们的午餐是埃塞俄比亚料理,他打算第二天吃厄瓜多尔料理。布兰森已经试过智利、古巴、喀麦隆和克罗地亚料理,接下来还规划了芬兰、斐济、密克罗尼西亚联邦与法国。

关键词：厄立特里亚埃塞俄比亚料理爱沙尼亚厄瓜多尔美食喀麦隆克罗地亚

Development of a Simple Extraction Method for Tetracycline Analogues from Bovine Milk

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Advances in Biological Chemistry 2024年第4期14卷 111-120页

作者： Oscar Cordova Thien Le christopher Lambert Devin Brodie Stephany Ramirez Francis Sandoval Karno Ng Department of Chemistry & Biochemistry California State University San Marcos San Marcos USA

Tetracycline and analogues are among the most used antibiotics in the dairy industry. Besides the therapeutic uses, tetracyclines are often incorporated into livestock feed as growth promoters. A considerable amount of antibiotics is released unaltered through milk from dairy animals. The presence of antibiotic residues in milk and their subsequent consumption can lead to potential health impacts, including cancer, hypersensitivity reactions, and the development of antibiotic resistance. Thus, it is important to monitor residual levels of tetracyclines in milk. The purpose of this study is to develop a quick and simple method for simultaneously extracting five tetracycline analogues from bovine milk. Specifically, five tetracycline analogues: Chlortetracycline (CTC), demeclocycline (DEM), doxycycline (DC), minocycline (MC), and tetracycline (TC) were simultaneously extracted from milk using trifluoroacetic acid. Subsequently, the extracted analogues were separated by reverse-phase high-performance liquid chromatography (RP-HPLC) and detected at 355 nm using UV/Vis. Calibration curves for all five tetracycline analogues show excellent linearity (r2 value > 0.99). Percent recovery for MC, TC, DEM, CTC, and DC were: 31.88%, 96.91%, 151.29, 99.20%, and 85.58% respectively. The developed extraction method has good precision (RSD < 9.9% for 4 of the 5 analogues). The developed method with minimal sample preparation and pretreatment has the potential to serve as an initial screening test.

关键词： Antibiotics Tetracyclines Extraction Milk HPLC

Early anticoagulation in patients with stroke and atrial fibrillation is associated with fewer ischaemic lesions at 1 month: the ATTUNE study

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Stroke & Vascular Neurology 2024年第1期9卷 30-37,I0034页

作者： Angelos Sharobeam Longting Lin Christina Lam Carlos Garcia-Esperon Yash Gawarikar Ronak Patel Matthew Lee-Archer Andrew Wong Michael Roizman Amanda Gilligan Andrew Lee Kee Meng Tan Susan Day christopher Levi Stephen M Davis Mark Parsons Bernard Yan Melbourne Brain Centre at Royal Melbourne Hospital ParkvilleVictoriaAustralia University of New South Wales South Western Sydney Clinical School LiverpoolNew South WalesAustralia Department of Neurology John Hunter HospitalNewcastleNew South WalesAustralia Department of Neurology Calvary Public HospitalCanberraAustralian Capital TerritoryAustralia Department of Neurology Northern Hospital EppingEppingVictoriaAustralia Department of Neurology Royal Brisbane and Women's HospitalHerstonQueenslandAustralia The University of Queensland School of Medicine HerstonQueenslandAustralia Neurosciences Clinical Institute Epworth HealthcareRichmondVirginiaAustralia Department of Neurology Austin HealthUniversity of MelbourneHeidelbergVictoriaAustralia Flinders University College of Medicine and Public Health AdelaideSouth AustraliaAustralia Department of Neurology Gold Coast University HospitalSouthportQueenslandAustralia The University of Sydney Northern Clinical School St LeonardsNew South WalesAustralia Department of Neurology and Neurophysiology Liverpool HospitalLiverpoolNew South WalesAustralia

Background The optimal time to commence anticoagulation in patients with atrial fibrillation(AF)after ischaemic stroke or transient ischaemic attack(TIA)is unclear,with guidelines differing in recommendations.A limitation of previous studies is the focus on clinically overt stroke,rather than radiologically obvious diffusion-weighted imaging ischaemic *** aimed to quantify silent ischaemic lesions and haemorrhages on MRI at 1month in patients commenced on early(5mL,regardless of anticoagulation *** Commencing anticoagulation<4days after stroke or TIA is associated with fewer ischaemic lesions at 1month in AF *** is no increased rate of haemorrhage with early *** results suggest that early anticoagulation after mild-to-moderate acute ischaemic stroke associated w

关键词： patients lesions ischaemic

Retinal artery/arteriole occlusion risks after endovascular treatment for unruptured intracranial aneurysm

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Stroke & Vascular Neurology 2024年第3期9卷 295-305,I0251-I0263页

作者： Hae Rang Kim Min Jeoung Kim Sunyeup Kim Myung Soo Chang Dong Joon Kim Byung Moon Kim Keun Young Park Yong Bae Kim christopher Seungkyu Lee Suk Ho Byeon Sung Soo Kim Seung Won Lee Yong Joon Kim Department of Ophthalmology CHA Bundang Medical CenterCHA University College of MedicineSeongnamKorea(the Republic of) Department of Neurosurgery Severance Stroke CenterSeverance HospitalYonsei University College of MedicineSeoulKorea(the Republic of) Department of Neurosurgery Uijeongbu St.Mary’s HospitalThe Catholic University of Korea College of MedicineUijeongbuKorea(the Republic of) Department of Medical AI Sungkyunkwan University School of MedicineSuwonKorea(the Republic of) Department of Ophthalmology Institute of Vision ResearchYonsei University College of MedicineSeoulKorea(the Republic of) Department of Radiology Severance Stroke CenterSeverance HospitalYonsei University College of MedicineSeoulKorea(the Republic of) Department of Precision Medicine Sungkyunkwan University School of MedicineSuwonKorea(the Republic of)

Background To evaluate the association between retinal artery/arteriole occlusion(RAO)and unruptured intracranial aneurysm(UIA).Methods Incident UIA patients from a nationwide cohort(n=253240)were categorised into three groups based on subsequent treatment:observation(n=208993),microsurgical clipping(n=14168)and endovascular treatment(EVT)groups(n=30079).The incidence and the incident time of RAO were *** of RAO and associated risk factors were ***,a hospital cohort comprising 2569 consecutive UIA patients treated at a tertiary hospital was analysed with detailed clinical information of *** In the nationwide cohort analysis,the incidence of RAO was significantly higher in EVT group than in observation and clipping groups,especially within 60 days(early RAO(within 60 days):HR=4.00,95%CI:2.44 to 6.56);delayed RAO(after 60 days:HR=1.74,95%CI:1.13 to 2.68).Multivariable analysis showed that the presence of chronic kidney disease(p=0.009)and use of a balloon microcatheter during the procedure(p=0.013)were associated with a higher risk of *** hospital cohort analysis,11(0.8%)cases of RAO occurred after EVT,whereas none occurred after microsurgical clipping(p<0.001).Patients with RAO were younger and received balloon microcatheters more frequently than their *** cases of RAO(90.9%)occurred in paraclinoid aneurysms,where EVT was preferred over microsurgical *** Performing EVT for UIA may increase the risk of subsequent *** should be taken when treating paraclinoid aneurysms with balloon microcatheters.

关键词： treatment nationwide balloon

Refinement of the Proposed Gamma-Ray Burst Time Delay Model

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International Journal of Astronomy and Astrophysics 2024年第2期14卷 120-147页

作者： Godson Fortune Abbey Joseph Simfukwe Prospery christopher Simpemba Saul Paul Phiri Alok Srivastava Golden Gadzirayi Nyambuya Department of Physic School of Mathematics and Natural Sciences The Copperbelt University Kitwe Republic of Zambia Fundamental Theoretical and Research Group Department of Applied Physics Faculty of Applied Sciences National University of Science & Technology Bulawayo Republic of Zimbabwe

This paper is the second instalment in our study of the observed time delay in the arrival times of radio photons emanating from Gamma Ray Bursts (GRBs). The mundane assumption in contemporary physics as to the cause of these pondersome time delays is that they are a result of the photon being endowed with a non-zero mass. While we do not rule out the possibility of a non-zero mass for the photon, our working assumption is that the major cause of these time delays may very well be that these photons are travelling in a rarefied cosmic plasma in which the medium’s electrons interact with the electric component of the Photon, thus generating tiny currents that lead to dispersion, hence, a frequency-dependent speed of Light (FDSL). In the present instalment, we “improve” on the model presented in the first instalment by dropping the assumption that the resultant pairs of these radio photons leave the shock front simultaneously. The new assumption of a non-simultaneous— albeit systematic—emission of these photon pairs allows us to obtain a much more convincing and stronger correlation in the time delay. This new correlation allows us to build a unified model for the four GRBs in our sample using a relative distance correction mechanism. The new unified model allows us to obtain as our most significant result a value for the frequency equivalence of the interstellar medium (ISM)’s conductance ν* ~ 1.500 ± 0.009 Hzand also an independent distance measure to the GRBs where we obtain for our four GRB samples an average distance of: ~69.40 ± 0.10, 40.00 ± 0.00, 58.40 ± 0.40, and 86.00 ± 1.00 Mpc, for GRB 030329, 980425, 000418 and 021004 respectively.

关键词： Gamma-Ray Bursts (GRB) Photon Mass Plasma Time Delay Fireball Model

Long-term effects of gestational diabetes mellitus on the pancreas of female mouse offspring

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World Journal of Diabetes 2024年第4期15卷 758-768页

作者： Enriqueta Muñoz-Islas Edgar David Santiago-SanMartin Eduardo Mendoza-Sánchez Héctor Fabián Torres-Rodríguez Laura Yanneth Ramírez-Quintanilla christopher Michael Peters Juan Miguel Jiménez-Andrade Unidad Académica Multidisciplinaria Reynosa-Aztlán Universidad Autónoma de TamaulipasReynosa 88740TamaulipasMexico Department of Anesthesiology Wake Forest University School of MedicineWinston SalemNC 27101United States

BACKGROUND Prolonged fetal exposure to hyperglycemia may increase the risk of developing abnormal glucose metabolism and type-2 diabetes during childhood,adolescence,and adulthood;however,the mechanisms by which gestational diabetes mellitus(GDM)predisposes offspring to metabolic disorders remain *** To quantify the nerve axons,macrophages,and vasculature in the pancreas from adult offspring born from mouse dams with *** GDM was induced by *** of streptozotocin(STZ)in ICR mouse *** 12 wk old,fasting blood glucose levels were determined in *** 15 wk old,female offspring born from dams with and without GDM were sacrificed and pancreata were processed for *** quantified the density of sensory[calcitonin gene-related peptide(CGRP)]and tyrosine hydroxylase(TH)axons,blood vessels(endomucin),and macro-phages(CD68)in the splenic pancreas using confocal *** Offspring mice born from STZ-treated dams had similar body weight and blood glucose values compared to offspring born from vehicle-treated ***,the density of CGRP+and TH+axons,endomucin+blood vessels,and CD68+macrophages in the exocrine pancreas was significantly greater in offspring from mothers with GDM vs control ***,the microvasculature in the islets was significantly greater,but not the number of macrophages within the islets of offspring born from dams with GDM compared to control *** GDM induces neuronal,vascular,and inflammatory changes in the pancreas of adult progeny,which may partially explain the higher propensity for offspring of mothers with GDM to develop metabolic diseases.

关键词： Gestational diabetes mellitus Immunohistochemistry Confocal microscopy Pancreas Offspring

Toward a nomenclature consensus for diverse intelligent systems:Call for collaboration

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The Innovation 2024年第5期5卷 32-34页

作者： Brett J.Kagan Michael Mahlis Anjali Bhat Josh Bongard Victor MCole Phillip Corlett christopher Gyngell Thomas Hartung Bianca Jupp Michael Levin Tamra Lysaght Nicholas Opie Adeel Razi Lena Smirnova Ian Tennant Peter Thestrup Wade Ge Wang Cortical Labs BrunswickVIC 3056Australia Wellcome Centre for Human Neuroimaging University College LondonLondon WC1N 3ARUK University of Vermont BurlingtonVT 05405USA Centre for Professional Communication Singapore Institute of TechnologySingapore 138683Singapore Department of Psychiatry Yale UniversityNew HavenCT 06511USA Murdoch Children’s Research Institute ParkvilleVIC 3052Australia Centre for Alternatives to Animal Testing(CAAT) Bloomberg School of Public Health and Whiting School of EngineeringJohns Hopkins UniversityDoerenkamp-Zbinden Chair for Evidence-based ToxicologyBaltimoreMD 21205USA CAAT-Europe University of Kostanz78464 KostanzGermany Department of Neuroscience Central Clinical SchoolMonash UniversityPrahranVIC 3004Australia Allen Discovery Centre at Tufts University MedfordMA 02155USA Yong Loo Lin School of Medicine National University of SingaporeSingapore 117597Singapore Faculty of Medicine and Health Sydney School of Public Health The University of SydneyCamperdownNSW 2050Australia Department of Medicine University of MelbourneParkvilleVIC 3010Australia Turner Institute for Brain and Mental Health Monash UniversityClaytonVIC 3168Australia Center for Alternatives to Animal Testing(CAAT) Bloomberg School of Public Health and Whiting School of EngineeringJohns Hopkins UniversityBaltimoreMD 21205USA Faculty of Engineering AgriTech and EnvironmentAnglia Ruskin UniversityPeterborough PE15BWUK Interacting Minds Centre Aarhus University8000 Aarhus CDenmark Department of Biomedical Engineering School of EngineeringBiomedical Imaging CenterCenter for Biotechnology and Interdisciplinary StudiesRensselaer Polytechnic InstituteTroyNY 12180USA Department of Biochemistry and Pharmacology University of MelbourneParkvilleVIC 3010Australia

Disagreements about language use are common both between and within *** interests require multidisciplinary collaboration or the field of research has the potential to impact society at large,it becomes critical to minimize these disagreements where *** development of diverse intelligent systems,regardless of the substrate(e.g.,silicon ***),is a case where both conditions are *** advancements have occurred in the development of technology progressing toward these diverse intelligence *** progress is silicon based,such as the use of large language models,or through synthetic biology methods,such as the development of organoids,a clear need for a community-based approach to seeking consensus on nomenclature is now ***,we welcome collaboration from the wider scientific community,proposing a pathway forward to achieving this intention,highlighting key terms and fields of relevance,and suggesting potential consensus-making methods to be applied.

关键词： seeking collaboration diverse

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青藏高原腹地发现最早细石叶技术遗址

中国科学：地球科学 2024年第5期54卷 1588-1601页

作者：靳英帅张晓凌王社江葛俊逸何伟达娃谭韵瑶杨紫衣 christopher MORGAN 高星中国科学院脊椎动物演化与人类起源重点实验室中国科学院古脊椎动物与古人类研究所北京100044 中国科学院大学北京100049 西藏自治区文物保护研究所拉萨850000 那曲市文化和旅游局那曲852000 University of Nevada Reno 87557USA

细石叶技术产品是青藏高原发现最丰富的史前人类文化遗物,代表了早期人类在高原的大规模迁徙.然而,经过系统发掘、具有可靠年代数据的细石叶技术遗址在青藏高原发现较少,高原腹地更为缺乏,这对理解细石叶技术人群在高原大规模迁徙扩散... 详细信息

细石叶技术产品是青藏高原发现最丰富的史前人类文化遗物,代表了早期人类在高原的大规模迁徙.然而,经过系统发掘、具有可靠年代数据的细石叶技术遗址在青藏高原发现较少,高原腹地更为缺乏,这对理解细石叶技术人群在高原大规模迁徙扩散的时间和过程带来了诸多障碍.本文研究报道了青藏高原腹地海拔4600m处新发现的细石叶技术遗址——尼阿底遗址第3地点.技术-类型学分析结果显示,尼阿底遗址第3地点细石叶的生产主要包括楔形石核和半锥形石核两种技术,与旧石器时代晚期中国华北地区的细石叶技术特征接近.光释光测年(OSL)和碳十四测年(^(14)C)的结果表明,尼阿底遗址第3地点的年代为11000~10000a BP.尼阿底遗址第3地点作为目前青藏高原腹地发现的最早的细石叶技术遗址,为了解拥有细石叶技术的狩猎采集者到达高原腹地的时间及其可能的扩散路线提供了重要信息.另外,通过对整个高原细石叶技术发展的分析,结合分子生物学的成果对比显示,细石叶技术人群迁移进入高原可能与人类对高原的长期占领以及现代藏族人的形成有密切联系.

关键词：青藏高原腹地尼阿底遗址第3地点细石叶技术早全新世高海拔适应