<Case Report> Seven Years' Experience with Cardiac Valve Surgery in Consecutive Patients over Sixty Years of Age

From May 1984 through March 1991, 19 consecutive patients 60 years of age and older (mean age 65.9; range 60-78 years) underwent valvular surgery. These comprised 6 isolated aortic valve replacements (Group 1), 9 isolated mitral valve replacements and one mitral commissurotomy (Group 2), and 3 patients with combined aortic and mitral procedures (Group 3) which included replacement of at least the aortic valve. Carpentier-Edwards bioprosteses were used in most cases. Three patients had undergone previous cardiac operations. Five Patients underwent semi-emergency procedures for acute valve perforation due to infectious endocarditis and prosthetic valve failures. Operative mortality was 11% (2/19 patients). Late death occured in two patients, but the cause of death was not related to prosthetic valves in either. At follow-up, the 15 surviving patients were in New York Heart Association functional class I or II.journal articl

Study of double charmonium production in e+e- annihilation at sqrt[s]≈10.6 GeV

journal articl

An Initial Code Acquisition Scheme for Indoor Packet DS/SS Systems with Macro/Micro Antenna Diversity

In this paper, we study macro/micro diversity techniques for code acquisition of a direct-sequence spread-spectrum signal in an indoor packet communication system. In the system discussed, the base station has several radio ports each with a cluster of antennas, and the terminal also has multiple antennas. The performance in the uplink of this system is analyzed under Longnormal shadowing and flat Rayleigh fading. The numerical results show great performance improvements by proposed diversity techniques. In addition, it is clarified that the mean acquisition time, which is often used as the measure of performance, is not suitable for packet radio systems as it underestimates the necessary preamble length for initial code acquisition.journal articl

Additional file 1: Table S1. of Chronic kidney disease in the Top End of the Northern Territory of Australia, 2002–2011: a retrospective cohort study using existing laboratory data

Comparison of overall prevalence of markers of CKD in different studies in Top End NT region & nationally (DOCX 15 kb

Synthesis of 4-Mono-and 2, 4-Disubstituted Derivatives of Pyrido-[3, 2-d]pyrimidine, Pyrido［2, 3-d]pyrimidine and Quinazoline

application/pdfSome 4-and 2, 4-substituted derivatives of pyrido[3, 2-d]pyrimidine, and pyrido[2, 3-d]pyrimidine were synthesized from the corresponding 4（3H）-ones by the usual method comprised of chlorodehydroxylation and subsequent amination and by "one-pot" amination. The latter method was more convenient and effcient than the fromer one. Similarly, 4- and 2, 4-substituted quinazolines were prepared. All of the cytokinin analogs were inactive in lettuce seed germination and Amaranthus betacyanin tests.アデニン型サイトカイニン類縁体としての4-置換アミノピリド［3，2-d］ビリミジン，ピリド［2，3-d〕ピリミジン及びキナゾリンを4-クロル体を経由する従来の2段階反応により行なった。4-クロル体とアミンとの反応は円滑に進行したが，4（3H)-オンのクロル化の収率が悪く，4-置換アミノ体の合成法として問題であった。そこで4（3H)-オンより1段階で4-置換アミノ体を得る合成法について検討した。ヘキサメチルジシラザンを用いる Vorbrüggen らの方法により，簡便かつ高収率で目的物を合成できることが判った。ひもげいとう色素形成テスト及びレタス発芽テストによりサイトカイニン活性を調べたが，いづれの化合物も活性を示さなかった。これらの結果よりピリドピリミジン環の5位及び8位の窒素は6位の窒素と同様，活性の発現に寄与しないことが明らかになった。departmental bulletin pape

Study Protocol – Diabetes and related conditions in urban Indigenous people in the Darwin, Australia region: aims, methods and participation in the DRUID Study-6

<p><b>Copyright information:</b></p><p>Taken from "Study Protocol – Diabetes and related conditions in urban Indigenous people in the Darwin, Australia region: aims, methods and participation in the DRUID Study"</p><p>BMC Public Health 2006;6():8-8.</p><p>Published online 17 Jan 2006</p><p>PMCID:PMC1373687.</p><p>Copyright © 2006 Cunningham et al; licensee BioMed Central Ltd.</p

Study Protocol – Diabetes and related conditions in urban Indigenous people in the Darwin, Australia region: aims, methods and participation in the DRUID Study-5

<p><b>Copyright information:</b></p><p>Taken from "Study Protocol – Diabetes and related conditions in urban Indigenous people in the Darwin, Australia region: aims, methods and participation in the DRUID Study"</p><p>BMC Public Health 2006;6():8-8.</p><p>Published online 17 Jan 2006</p><p>PMCID:PMC1373687.</p><p>Copyright © 2006 Cunningham et al; licensee BioMed Central Ltd.</p

Study Protocol – Diabetes and related conditions in urban Indigenous people in the Darwin, Australia region: aims, methods and participation in the DRUID Study-3

<p><b>Copyright information:</b></p><p>Taken from "Study Protocol – Diabetes and related conditions in urban Indigenous people in the Darwin, Australia region: aims, methods and participation in the DRUID Study"</p><p>BMC Public Health 2006;6():8-8.</p><p>Published online 17 Jan 2006</p><p>PMCID:PMC1373687.</p><p>Copyright © 2006 Cunningham et al; licensee BioMed Central Ltd.</p

Study Protocol – Diabetes and related conditions in urban Indigenous people in the Darwin, Australia region: aims, methods and participation in the DRUID Study-4

<p><b>Copyright information:</b></p><p>Taken from "Study Protocol – Diabetes and related conditions in urban Indigenous people in the Darwin, Australia region: aims, methods and participation in the DRUID Study"</p><p>BMC Public Health 2006;6():8-8.</p><p>Published online 17 Jan 2006</p><p>PMCID:PMC1373687.</p><p>Copyright © 2006 Cunningham et al; licensee BioMed Central Ltd.</p>lients from the Northern Territory Department of Health and Community Services' (NTDHCS) Client-Master Index (CMI). DRUID and NTDHCS figures exclude people with missing or ineligible postal codes

Study Protocol – Diabetes and related conditions in urban Indigenous people in the Darwin, Australia region: aims, methods and participation in the DRUID Study-1

<p><b>Copyright information:</b></p><p>Taken from "Study Protocol – Diabetes and related conditions in urban Indigenous people in the Darwin, Australia region: aims, methods and participation in the DRUID Study"</p><p>BMC Public Health 2006;6():8-8.</p><p>Published online 17 Jan 2006</p><p>PMCID:PMC1373687.</p><p>Copyright © 2006 Cunningham et al; licensee BioMed Central Ltd.</p>ous clients from the Northern Territory Department of Health and Community Services' (NTDHCS) Client-Master Index (CMI)