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      • SCIESCOPUSKCI등재

        COPRA MEAL AS A SUPPLEMENT TO CATTLE OFFERED A LOW QUALITY NATIVE PASTURE HAY

        Hennessy, D.W.,Kempton, T.J.,Williamson, P.J. Asian Australasian Association of Animal Productio 1989 Animal Bioscience Vol.2 No.2

        Twenty-four Hereford steers, 22 months old and a mean liveweight (${\pm}\;s.e.$) of $250\;{\pm}\;7\;kg$ were used in an experiment to evaluate over 42 days two rates of copra meal supplementation to cattle on a low N ($8.6\;{\pm}\;0.9$ g N/kg dry matter (DM)), low digestible ($45\;{\pm}\;5.2%$ DM) native pasture hay. Steers given the two rates (500, 1000 g/steer/day; i.e. 500C, 1000C) were compared to steers on a non-supplemental diet and to the effects on steers of supplemental urea (30g/steer/day; 30U) or with copra meal (500 g/steer/day; 500C.U), or of cottonseed meal (500 g/steer/day; 500S). Liveweight change was increased (P<0.01) by all of the supplements except by supplemental urea. The most effective treatment, 1000C, increased significantly (P<0.01) liveweight change (946 g/day) in steers above all supplements except those steers given 500C.U (718 g/day). Hay intake per unit liveweight was increased (P<0.05) by 7% by the 30U and 500C.U treatment, and by 9% by 500C; this group having the highest supplements, being greatest (P<0.05) for the 1000C group (6.0 g feed intake/g gain) and least for the 500S supplemented group (11.5 g/g gain). Efficiency was lowest (18.6 g/g gain) for the non-supplemented steers on the basal hay diet. Copra meal N was less degradable (i.e. 29%) in nylon bags over 15 hours in the rumen than was cottonseed meal N (37%), and rumen ammonia concentrations were lower (P<0.05) in cattle supplemented with copra meal (25, 27 mg N/L) than in cattle given urea (36 mg N/L) or cottonseed meal (39 mg N/L). It is concluded that copra meal at a daily rate of 500 g/head, and with rumen soluble nitrogen from urea, is an effective supplement for improving growth of cattle on a low quality forage.

      • SCIESCOPUSKCI등재

        Efficiency of Calf Production from Twin-bearing Beef Cows on an Intensive Pasture System in Subtropical Australia

        Hennessy, D.W.,Wilkins, J.F. Asian Australasian Association of Animal Productio 2005 Animal Bioscience Vol.18 No.12

        Forty-two single-bearing and 42 twin-bearing mature Angus${\times}$Hereford cows were allocated, seven per cell to 3 replications of 2 stocking rates (3.2 cows/ha; medium stocking rate [MSR], and 3.8 cows/ha; high stocking rate [HSR]) to graze summer-active and winter-active pastures from late pregnancy to the weaning of their calves. Cow liveweights and growth of calves were recorded as well as estimates of pasture quantity and forage intake. Pasture quantity did not differ in the paddocks grazed by single- and twin-bearing cows during pregnancy, nor effectively did forage intake. Subsequently, intake was higher during mid-lactation especially with twin-rearing cows (25% higher than single-rearing cows at the MSR; 9% at the HSR). However, quantity of pasture decreased for twin-rearing cows and was less than that available to single-rearing cows as lactation progressed. Liveweights of twinrearing cows decreased by 16% from late pregnancy to weaning at the MSR, and by 14% at the HSR, compared to decreases of 1% for single-rearing cows. Twin calves were lighter at birth, had slower growth rates, and were lighter at weaning than single calves. In spite of weaning smaller calves twinning increased the output (kg of calf weaned) per cow and per ha, and increased the efficiency (kg calf weaned per unit of forage eaten by the cow) over single calf production by 46% at the MSR and by 58% at the HSR. Twinning also increased the marginal returns from investment in high input pastures required by the enterprise.

      • 21세기의 물관리

        Hennessy Jon 한국관개배수위원회 1994 한국관개배수논문집 Vol.1 No.1

        이 보고서는 개발도상국에서 매년 3-4$\%$씩 증가될 것으로 예측되는 물수요와 관개농업분야에서 제기된 환경보전적 수자원 개발에 관하여 세계 환경정상회담의 권고사항 및 토의내용을 뒷받침하는 것이다. 이 보고서는 또한 현재의 물관리분야의 관행적 관리형태와 실제 운영상황을 재점검하고, 주요 국제 상공분야에서 $\ulcorner$배운 교훈$\lrcorner$들을 주의깊게 관찰함으로서 많은 것을 얻을

      • SCIESCOPUSKCI등재

        A COMPARISON OF COTTONSEED AND FORMALDEHYDE-TREATED SUNFLOWER MEALS ON THE PRODUCTION OF BOS INDICUS AND BOS TAURUS CATTLE ON A SUB-TROPICAL PASTURE HAY

        Hennessy, D.W.,Williamson, P.J. Asian Australasian Association of Animal Productio 1988 Animal Bioscience Vol.1 No.2

        Six steers of each breed type, Hereford ($H{\times}H$), Brahman ($B{\times}B$) and Brahman $\times$ Hereford ($B{\times}H$) were ranked on liveweight and allocated to three treatments, basal hay diet (Basal), Basal plus 1 kg/head/day of cottonseed meal (Basal + CSM) and Basal plus 1 kg/head/day of formaldehyde-treated sunflower meal, $Norpro^{(R)}$ (Basal + NPO). The hay was made from a pasture based predominantly on carpet grass (Axonopus affinus) growing in subtropical New South Wales, and had an estimated organic matter digestibility of 52% and a nitrogen (N) content of 7.8 g/kg dry matter (DM). The steers were accustomed to the Basal diet over 15 days and supplements offered over 42 days. Intake of the basal hay diet by steers was not increased by supplementation. When intakes were adjusted for differences between breed types in liveweight the $B{\times}H$ steers ate 25% (P<0.01) more hay than $H{\times}H$ steers (6.3 V 5.0 kg/head/d) and $B{\times}B$ steers ate 8% less hay than $H{\times}H$ steers. Supplementation significantly (P<0.01) increased liveweight gain during the experiment, being ($g/head/d\;{\pm}\;s.e.d.$) 290, 770 and $795{\pm}118$ respectively for Basal, Basal + NPO and Basal + CSM. There was no difference between supplements in the liveweight gain of steers nor between steers of different genotypes. However, there was a significant interaction (P<0.01) between breeds and treatments such that $B{\times}B$ steers gained most on the basal diet but least of the breed types when supplemented. The estimated non-degradeable fraction of N in the protein meals was 58.5 and 44.5%, respectively for NPO and CSM. Both meals increased (P<0.01) plasma urea N and rumen ammonia N concentrations.

      • KCI등재

        Anesthetic, Sedation, and Analgesic Technique for Successful Local Anesthetic EndoSuture Aneurysm Repair

        Martin Hennessy,Keith Kelso Hussey 대한혈관외과학회 2023 Vascular Specialist International Vol.39 No.1

        Purpose: We aimed to describe our technique for and experience with elective endovascular aneurysm repair using EndoAnchors under local anesthesia. Materials and Methods: We included seven patients with abdominal aortic aneurysms who underwent endovascular aneurysm repair using EndoAnchors with a standard regimen consisting of local anesthesia, intravenous sedation, and analgesia. The procedural and follow-up details were retrospectively reviewed. Results: Six out of seven infrarenal abdominal aortic aneurysms were successfully treated with endovascular aneurysm repair using primary EndoAnchors under local anesthesia. One patient was converted to general anesthesia due to acute aneurysm thrombosis independent of EndoAnchor deployment during the procedure. Remifentanyl infusions of up to 3.2 mg/min, morphine doses up to 6 mg (median, 0.5 mg), and midazolam doses of up to 4 mg (mean, 1.4 mg) were used. The mean theater time was 83 minutes (range, 60–130 minutes). Two patients were discharged on day 0, and the mean hospital stay was one day. All patients were alive between 484 and 1,128 days post-procedure, with no aneurysm-specific reintervention. Conclusion: The combination of local anesthesia, intravenous sedation, and analgesia is a viable strategy for timely and effective endovascular aneurysm repair using EndoAnchors. This technique may allow endovascular repair of more ruptured aneurysms using EndoAnchors with potential survival benefits.

      • KCI등재

        Fate of Asymptomatic Limb after Kissing Stents in Aortoiliac Occlusive Disease

        Faheem Asem Ahmad,Martin Michael Hennessy,Alexander Fredrik Nath 대한혈관외과학회 2022 Vascular Specialist International Vol.38 No.1

        Purpose: Kissing stent angioplasty is an established endovascular treatment strategy for stenosis at the aortic bifurcation but not without its detractors. This study aimed to analyze the outcomes of kissing stents with regard to stent occlusion and complications in which an asymptomatic limb was treated. Materials and Methods: A total of 106 patients undergoing aortic bifurcation intervention from January 2015 to November 2020 were retrospectively reviewed. Only patients with at least one common iliac artery (CIA) ostium and undergoing bilateral CIA intervention were included in the study. Results: Patients were followed up for a median period of 26 months (interquartile range, 21-51 months). The TransAtlantic InterSociety Consensus (TASC)-II classification of lesions was as follows: A, 49%; B, 41%; C, 6%; and D, 5%. The treatment indication was limited to one side in 53% of patients. Technical and procedural success rates were 99% and 90%, respectively. Ischemic events in an asymptomatic limb occurred in 6% of cases, 3% due to late stent thrombosis >30 days, and 3% due to progression of downstream infrainguinal disease. Primary and secondary patency rates at 1, 3, and 5 years were 98%, 87%, and 85%, and 99%, 94%, and 94%, respectively. Periprocedural mortality developed in two patients with no amputation. Conclusion: Kissing stent deployment is a safe and effective strategy for the treatment of aortoiliac bifurcation disease. Unfavorable outcomes due to stenting in the asymptomatic iliac artery are very rare. Long-term surveillance is necessary due to the risk of late thrombosis or downstream disease progression.

      • Epidermal growth factor receptor and <i>K‐Ras</i> mutations and resistance of lung cancer to insulin‐like growth factor 1 receptor tyrosine kinase inhibitors

        Kim, Woo‐,Young,Prudkin, Ludmila,Feng, Lei,Kim, Edward S.,Hennessy, Bryan,Lee, Ju‐,Seog,Lee, J. Jack,Glisson, Bonnie,Lippman, Scott M.,Wistuba, Ignacio I.,Hong, Waun Ki,Lee, Ho‐,Youn Wiley Subscription Services, Inc., A Wiley Company 2012 Cancer Vol.118 No.16

        <P><B>Abstract</B></P><P><B>BACKGROUND:</B></P><P>Most patients with nonsmall cell lung cancer (NSCLC) have responded poorly to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs). The authors investigated the involvement of insulinlike growth factor 1 receptor (IGF‐1R) signaling in primary resistance to EGFR TKIs and the molecular determinants of resistance to IGF‐1R TKIs.</P><P><B>METHODS:</B></P><P>Phosphorylated IGF‐1R/insulin receptor (pIGF‐1R/IR) was immunohistochemically evaluated in an NSCLC tissue microarray. The authors analyzed the antitumor effects of an IGF‐1R TKI (PQIP or OSI‐906), either alone or in combination with a small‐molecular inhibitor (PD98059 or U0126) or with siRNA targeting <I>K‐Ras</I> or mitogen‐activated protein kinase/extracellular signal‐regulated kinase kinase (MEK), in vitro and in vivo in NSCLC cells with variable histologic features and <I>EGFR</I> or <I>K‐Ras</I> mutations.</P><P><B>RESULTS:</B></P><P>pIGF‐1R/IR expression in NSCLC specimens was associated with a history of tobacco smoking, squamous cell carcinoma histology, mutant <I>K‐Ras</I>, and wild‐type (WT) <I>EGFR</I>, all of which have been strongly associated with poor response to EGFR TKIs. IGF‐1R TKIs exhibited significant antitumor activity in NSCLC cells with WT EGFR and WT <I>K‐Ras</I> but not in those with mutations in these genes. Introduction of mutant <I>K‐Ras</I> attenuated the effects of IGF‐1R TKIs on NSCLC cells expressing WT <I>K‐Ras</I>. Conversely, inactivation of MEK restored sensitivity to IGF‐TKIs in cells carrying mutant <I>K‐Ras</I>.</P><P><B>CONCLUSIONS:</B></P><P>The mutation status of both <I>EGFR</I> and <I>K‐Ras</I> could be a predictive marker of response to IGF‐1R TKIs. Also, MEK antagonism can abrogate primary resistance of NSCLC cells to IGF‐1R TKIs. Cancer 2012. © 2012 American Cancer Society.</P>

      • KCI등재

        Incidental Statin Use and the Risk of Stroke or Transient Ischemic Attack after Radiotherapy for Head and Neck Cancer

        Daniel Addison,Patrick R. Lawler,Hamed Emami,Sumbal A. Janjua,,Pedro V. Staziaki,Travis R. Hallett,Orla Hennessy,Hang Lee,Bálint Szilveszter,Michael Lu,Negar Mousavi,Matthew G. Nayor,Francesca N. Dell 대한뇌졸중학회 2018 Journal of stroke Vol.20 No.1

        Background and Purpose Interventions to reduce the risk for cerebrovascular events (CVE; stroke and transient ischemic attack [TIA]) after radiotherapy (RT) for head and neck cancer (HNCA) are needed. Among broad populations, statins reduce CVEs; however, whether statins reduce CVEs after RT for HNCA is unclear. Therefore, we aimed to test whether incidental statin use at the time of RT is associated with a lower rate of CVEs after RT for HNCA. Methods From an institutional database we identified all consecutive subjects treated with neck RT from 2002 to 2012 for HNCA. Data collection and event adjudication was performed by blinded teams. The primary outcome was a composite of ischemic stroke and TIA. The secondary outcome was ischemic stroke. The association between statin use and events was determined using Cox proportional hazard models after adjustment for traditional and RT-specific risk factors. Results The final cohort consisted of 1,011 patients (59±13 years, 30% female, 44% hypertension) with 288 (28%) on statins. Over a median follow-up of 3.4 years (interquartile range, 0.1 to 14) there were 102 CVEs (89 ischemic strokes and 13 TIAs) with 17 in statin users versus 85 in nonstatins users. In a multivariable model containing known predictors of CVE, statins were associated with a reduction in the combination of stroke and TIA (hazard ratio [HR], 0.4; 95% confidence interval [CI], 0.2 to 0.8; P=0.01) and ischemic stroke alone (HR, 0.4; 95% CI, 0.2 to 0.8; P=0.01). Conclusions Incidental statin use at the time of RT for HNCA is associated with a lower risk of stroke or TIA.

      • KCI등재

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