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Ductility demands on buckling-restrained braced frames under earthquake loading

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Earthquake Engineering and Engineering Vibration 2003年第2期2卷 255-268页

作者： larry A.Fahnestock Richard Sause James M.Ricles Le-Wu Lu Department of Civil and Environmental Engineering ATLSS CenterLehigh UniversityBethlehemPennsylvaniaUSA Graduate Research Assistant Department of Civil and Environmental Engineering ATLSS CenterLehigh UniversityBethlehemPennsylvaniaUSA Professor

Accurate estimates of ductility demands on buckling-restrained braced frames(BRBFs)are crucial to performance-based design of *** analytical study on the seismic behavior of BRBFs has been conducted at the ATLSS Center,Lehigh University to prepare for an upcoming experimental *** analysis program DRAIN-2DX was used to model a one-bay,four-story prototype BRBF including material and geometric *** buckling- restrained brace(BRB)model incorporates both isotropic and kinematic *** static pushover and time- history analyses were performed on the prototype *** objectives for the BRBs were defined and used to evaluate the time-history analysis *** emphasis was placed on global ductility demands and ductility demands on the *** demands were compared with anticipated ductility *** analysis results,along with results from similar previous studies,are used to evaluate the BRBF design provisions that have been recommended for codification in the United *** results show that BRB maximum ductility demands can be as high as 20 to *** demands significantly exceed those anticipated by the BRBF recommended *** from the static pushover and time- history analyses are used to demonstrate why the ductility demands exceed those anticipated by the recommended provisions. The BRB qualification testing protocol contained in the BRBF recommended provisions is shown to be inadequate because it requires only a maximum ductility demand of at most *** to the testing protocol are recommended.

关键词： buildings buckling-restrained braced frames buckling-restrained braces structural response seismic response ductility demand seismic codes and standards

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作者： larry McMurtry.

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Auditing 5th ed.

Children’s physical activity and health—Chronic disease in children and young adults

2002年

作者： Konrath, larry F

来源：畅想之星图书光盘版（南... 评论

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Journal of Sport and Health Science 2013年第1期2卷 1-2页

作者： J.larry Durstine Neil Armstrong Sulin Cheng Department of Exercise Science The University of South CarolinaColumbiaSC 29208USA Children's Health and Exercise Research Centre University of ExeterExeter EX4 4QJUK Department of Health Sciences University of JyvskyFIN-40014 JyvskylFinland

The previous Special Issue was devoted to physical activity (PA),physical fitness,diet,and health in young *** content of this second Special Issue will focus on PA and chronic disease in children and young adults. The first paper written by Durstine et *** the problem of chronic diseases becoming a public health concern worldwide with estimates of trillions of dollais in annual health care costs and causing more than 36 million deaths a year.

关键词：慢性疾病年轻人儿童健康身体 PA

Acute Syphilitic Hepatitis in the Early Secondary Phase: A Case Report and Literature Review

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Open Journal of Gastroenterology 2022年第3期12卷 37-43页

作者： Paul Ngock Jacques Mauillon larry Tangie Antonin Ndjitoyap Célestin Danwang Firmin Ankouane Department of Gastroenterology and Hepatology Jacques Monod Hospital Montivilliers France Internal Medicine Department Faculty of Medicine and Biomedical Sciences Yaounde Cameroon Epidemiology and Biostatistics Unit Institut de Recherche Expérimentale et Clinique Université catholique de Louvain Brussels Belgium

Background: The incidence of syphilis is clearly increasing. It is a source of visceral damage, particularly in the secondary phase. Acute syphilitic hepatitis is a rare clinical entity classically described but under-diagnosed because of its non-specific presentation. Case Presentation: We report the case of a 25-year-old French woman, without comorbidity, sexually active, having unprotected sex with only one partner. She was admitted to our unit for jaundice and a disturbed liver function test preceded 3 weeks earlier by a rash. The patient did not consume alcohol and did not report the introduction of a new medication. A skin rash compatible with syphilitic roseola and generalized adenopathy were found. The liver workup showed alanine aminotransferase (ALT) at 1984 U/L, aspartate aminotransferase (AST) at 1377 U/L, total bilirubin at 221 μmol/L, alkaline phosphatase activity (APL) at 419 U/L, gamma glutamyl transferase activity (GGT) at 229 U/L and a prothrombin concentration at 73%. The search for the most common etiologies of acute hepatitis was negative. Syphilitic serology was positive with a Treponema Pallidum Hemagglutinations Assay (TPHA) titration of 5120 IU and Veneral Disease Research Laboratory (VDRL) of 64 IU. Abdominal ultrasound revealed only homogeneous hepatomegaly and splenomegaly with no focal lesions. Other sexually transmitted infections (STI) were negative and her partner had positive syphilis serology. After a single dose of Benzathine benzylpenicillin, the clinical signs regressed after one week and the hepatic balance tended to normalize 20 days later. Conclusion: This highlights the need for a high index of suspicion for syphilitic hepatitis in sexually active patients presenting with acute hepatitis associated with a cutaneous rash.

关键词： Acute Hepatitis Rash Syphilis

Schistosoma japonicum:establishment of a mouse model that demonstrates concomitant immunity

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Chinese Medical Journal 2004年第6期117卷 947-949页

作者：何立易新元蒋明森曾宪芳欧阳理 larry McReynolds Department of Pathogen Biology Wuhan University Medical School Department of Pathogen Biology Central South University Xiangya Medical School New England Biolabs Inc.

In summary, our results strongly support the hypothesis first proposed by Smithers and Terry in 1969 that the resistance of the definitive host to schistosome reinfection is related to concommitant immunity induced by adult worms in vivo, which not affect the established adult worms but does affect reinfection with the parasite in the larval stage.

关键词： Schistosoma japonicum·mouse model·concomitant immunity

Odontogenic Herpes Zoster Infection: A Case Report and Review

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Case Reports in Clinical Medicine 2022年第12期11卷 487-493页

作者： Edlira Maska Austin J. Trent Andrea de Lemos larry M. Bush Department of Medicine Wellington Regional Medical Center Wellington FL USA Charles E. Schmidt College of Medicine Florida Atlantic University Boca Raton FL USA Department of Medical Education University of Miami-Miller School of Medicine Palm Beach County FL USA

Herpes zoster is a commonly encountered entity of which all clinicians should be aware. The diagnosis is most often considered and made based on a characteristic vesicular rash that presents in a unilateral dermatomal distribution and is usually accompanied by a painful neuritis. Not uncommonly, the pain presents a few days before the rash becomes evident and may even occur without the rash appearing. When this happens patients may be subject to further diagnostic testing seeking alternative diagnoses, as herpes zoster is known to mimic a variety of other non-cutaneous organ system entities. Although the thoracic and lumbar dermatomes are the affected most frequently, in approximately one-fifth of cases the cranial nerves are involved either singularly or in combination. Trigeminal nerve zoster is of particular concern as it poses a risk of developing into zoster ophthalmicus with subsequent keratitis and uveitis resulting in permanent vision impairment. Involvement of the second (maxillary) and third (mandibular) branches of this 5th cranial nerve are less common and may present with signs and symptoms of a primary dental process. The infrequency and unfamiliarity of herpes zoster odontogenic manifestations can lead to unnecessary investigation and treatment. Apropos such a case we review the epidemiology, pathophysiology, signs, and symptoms of odontogenic herpes zoster.

关键词： Herpes Zoster Trigeminal Nerve Odontogenic

Experimental and Modeling Study of Forest Fire Effect on Soil Thermal Conductivity

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Pedosphere 2016年第4期26卷 462-473页

作者： Kathleen M.SMITS Elizabeth KIRBY William J.MASSMAN larry Scott BAGGETT Center for the Experimental Study of Subsurface Environmental Processes Department of Civil and Environmental EngineeringColorado School of Mines USDA Forest Service Rocky Mountain Research Station

An understanding of soil thermal conductivity after a wildfire or controlled burn is important to land management and post-fire recovery efforts. Although soil thermal conductivity has been well studied for non-fire heated soils, comprehensive data that evaluate the long-term effect of extreme heating from a fire on the soil thermal conductivity are limited. The purpose of this study was to evaluate the long-term impact of fire on the effective thermal conductivity of soils by directly comparing fire-heated and no-fire control soils through a series of laboratory studies. The thermal conductivity was measured for ten soil samples from two sites within the Manitou Experimental Forest, Colorado, USA, for a range of water contents from saturation to the residual degree of saturation. The thermal conductivity measured was compared with independent estimates made using three empirical models from literature, including the Campbell et al.(1994), Cté and Konrad(2005), and Massman et al.(2008) models. Results demonstrate that for the test soils studied, the thermal conductivity of the fire-heated soils was slightly lower than that of the control soils for all observed water *** results show that the Campbell et al.(1994) model gave the best agreement over the full range of water contents when proper fitting parameters were employed. Further studies are needed to evaluate the significance of including the influence of fire burn on the thermal properties of soils in modeling studies.

关键词：土壤有效森林火灾热导率实验室模拟经验模型水含量恢复工作

Nervous system development =

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