<strong>Objective</strong><span><span><span style="font-family:;" "=""><strong>:</strong> To evaluate and compare the prognostic contribution of diffe...<strong>Objective</strong><span><span><span style="font-family:;" "=""><strong>:</strong> To evaluate and compare the prognostic contribution of different UGIB prognostic scores. <b>Patients and Method</b>: Descriptive cross-sectional study with retrospective collection conducted from January 2014 to December 2019. Patients hospitalized in the Gastroenterology Department of Campus Teaching Hospital of Lome for upper gastrointestinal hemorrhage were included. The analytical component of this study had consisted of an evaluation of the sensitivity and specificity of different prognostic scores (GBS, mGBS, FRS, CRS, AIMS65) in predicting the occurrence of death and/or re-bleeding within 42 days. These different scores were compared using ROC (Receiver Operating Characteristic) curves. <b>Results</b>: We included 314 patients in our study. The male to female sex ratio was 2.48. Fibroscopy found non-related portal hypertension UGIB in 70.94% of the cases. The “FRS” was the most accurate score in predicting death or re-bleeding in all patients. The “FRS” was the most precise score in predicting the occurrence of spotting in all patients. The “FRS” was the most accurate score in predicting death among all patients. The mortality of patients at low risk of death (below the threshold value) was 2.2% for the “FRS”, 9.3% for the “CRS”, 0% for the “GBS” (p = 0.565), 50% for the “mGBS” and 11.4% for the “AIMS65”. Scores were more accurate for non-related portal hypertension UGIB. <b>Conclusion</b>: The “FRS” and the “CRS” are two precise scores in predicting the occurrence of an incident in the event of upper gastrointestinal hemorrhage. However, these scores were less effective in related portal hypertension UGIB</span></span></span><span><span><span style="font-family:;" "="">.</span></span></span>展开更多
At present,global industrial structure adjustment accelerates,infrastructure construction is still booming,and developing countries are vigorously promoting the industrialization and urbanization,all providing great o...At present,global industrial structure adjustment accelerates,infrastructure construction is still booming,and developing countries are vigorously promoting the industrialization and urbanization,all providing great opportunities for international cooperation on capacity and equipment manufacturing.In May 2015,the'Guiding Opinions of the State Council of the Peoples Republic of China on Promoting展开更多
In the course of using precise visual instrument, aiming precision is an important parameter to analyze the measurement error. Usually, instrument calibrated error is set down as measurement error. In the paper, the p...In the course of using precise visual instrument, aiming precision is an important parameter to analyze the measurement error. Usually, instrument calibrated error is set down as measurement error. In the paper, the precision theory of TC2003 theodolite is analyzed and some aiming experiments is done for different width line. Then, the relations between the width of line and aiming precision are shown by different aiming methods of two superposition solid lines and one line clipped by double lines. Finally, an effective method to improve aiming precision is proposed which adopts the aiming method of one line clipped by double lines.展开更多
China's entry into the WTO means that Chinese enterprises stepped onto the "big competition arena of WTO". Accession to the WTO brought fierce challenge to all Chinese enterprises. For some enterprises, ...China's entry into the WTO means that Chinese enterprises stepped onto the "big competition arena of WTO". Accession to the WTO brought fierce challenge to all Chinese enterprises. For some enterprises, it is even a crisis; but on the other hand, it provides us broader markets and more developing opportunities. Whether challenge or opportunities. the key is how we shall cope with them. Just like a sword. advantages or disadvantages depend whether it's on the edge or handle that we are holding. Perhaps s...展开更多
Established on June 26, 1986 by the consolidation of four former CAS subordinates (namely,the Office of Policy Research, Division of Management Science, Editorial Department of the Journal of Dialectics of Nature,... Established on June 26, 1986 by the consolidation of four former CAS subordinates (namely,the Office of Policy Research, Division of Management Science, Editorial Department of the Journal of Dialectics of Nature, and Section of Optimization and Overall Planning under the CAS Institute of Applied Mathematics), the Institute of Policy and Management (IPM), CAS, is characterized by interdisciplinary studies of social and natural sciences. It applies itself to theoretical, methodological and applied research into national strategies, policies and management for S&T development. It also provides consultancy services for government departments, local authorities and CAS on issues concerning S&T development, social and economic growth, S&T management and administration of enterprises.……展开更多
Quaternion realization of aiming stabilization of the mobile weapon is considered.Gyro compassing combined with an inclinometer is used for the measurement of the initial chassis orientation in respect of the geograph...Quaternion realization of aiming stabilization of the mobile weapon is considered.Gyro compassing combined with an inclinometer is used for the measurement of the initial chassis orientation in respect of the geographical north and the horizontal plane.The same 3D gyroscope is used for the measurement of the subsequent incremental change of the chassis orientation.The goal of the proposed stabilization is to maintain the aiming geo coordinates generated by the fire control system while moving in an uneven terrain.展开更多
Background:L-dopa(Levodopa)is well known for managing PD(Parkinson’s disease);however,its prolonged use caused dyskinesia(LID).Due to the varied presentation of LID,effective treatment options are scarce.Flavonoids r...Background:L-dopa(Levodopa)is well known for managing PD(Parkinson’s disease);however,its prolonged use caused dyskinesia(LID).Due to the varied presentation of LID,effective treatment options are scarce.Flavonoids reported their neuroprotective activity by ameliorating acetylcholinesterase,monoamine oxidase,and neuroinflammation.Kaempferol is anotherflavonoid bearing these potentials.Aim:To evaluate neuroprotective activity of kaempferol in dyskinetic rats.Methods:PD was developed in Sprague-Dawley rats by injecting combination of L-ascorbic acid(10µL)+6-OHDA(12µg)in medial forebrain bundle to induce neuronal damage in substantial nigra(SNr).LID was induced by administrating combination of L-dopa(20 mg/kg)+benserazide HCl(5 mg/kg)for 42 days.Rats were concomitantly treated with amantadine(40 mg/kg)or kaempferol(25,50,and 100 mg/kg,p.o.).Results:Kaempferol(50 and 100 mg/kg)markedly(p<0.05)inhibited LID-induced abnormal involuntary movements(AIMs)and alternation in motor function.Kaempferol administration considerably(p<0.05)inhibited reduced mitochondrial complex activities,serotonin and dopamine levels,Bcl-2,and Tyrosine hydroxylase protein expressions in SNr.Additionally,kaempferol considerably(p<0.05)attenuated increased cFOS,FosB,Parkin,and Pdyn mRNAs expressions,Bax,cleaved caspase-3,caspase-3,and pJNK proteins levels;DOPAC and 5-HIAA levels in SNr.A positive correlation was reported between cFOS,FosB,Parkin,Pdyn,apoptosis,and TH with AIMs.Conclusion:Kaempferol effectively attenuated L-dopa-induced AIMs and dyskinesia via amelioration of alterations in cFOS,FosB,Parkin,Pdyn,Tyrosine hydroxylase,and apoptosis in the brain SNr.展开更多
This essay is to evaluate the course book New Practical English from four perspectives, including analysis of the learners, analysis of its aims, analysis of methodology and analysis of its content to prove that it is...This essay is to evaluate the course book New Practical English from four perspectives, including analysis of the learners, analysis of its aims, analysis of methodology and analysis of its content to prove that it is a comprehensive course suitable for students of vocational colleges.展开更多
A novel upper gastrointestinal bleeding risk stratification score(AIMS65) has recently been developed and validated. It has advantages over existing risk scores including being easy to remember and lack of subjectivit...A novel upper gastrointestinal bleeding risk stratification score(AIMS65) has recently been developed and validated. It has advantages over existing risk scores including being easy to remember and lack of subjectivity in calculation. We comment on a recent study that has cast doubt on the applicability of AIMS65 in the peptic ulcer disease population. Although promising, further studies are required to evaluate the validity of AIMS65 in various populations.展开更多
Streptococcus mutans(S. mutans), a major aetiologic agent of dental caries, is involved in systemic diseases, such as bacterial endocarditis, if it enters the bloodstream through temporary bacteraemia. Interleukin(IL...Streptococcus mutans(S. mutans), a major aetiologic agent of dental caries, is involved in systemic diseases, such as bacterial endocarditis, if it enters the bloodstream through temporary bacteraemia. Interleukin(IL)-1β, a proinflammatory cytokine, is related to the host defences against pathogens, and its synthesis, maturation, and secretion are tightly regulated by the activation of the inflammasome, an inflammatory signalling complex. This study examined the signalling mechanism of IL-1β secretion and the inflammasome pathway induced by S. mutans to explain the molecular mechanism through which systemic infection by oral streptococci can occur. After infection of THP-1 cells with S. mutans, the expression of inflammasome components was detected using various methods. S. mutans induced IL-1β secretion via caspase-1 activation, and S. mutans-induced IL-1β secretion required absent in melanoma(AIM2), NLR family pyrin domain-containing 3(NLRP3) and NLR family CARD domain-containing 4(NLRC4)inflammasome activation. In particular, the S. mutans-induced NLRP3 inflammasome was mediated by adenosine triphosphate(ATP) release, potassium depletion and lysosomal damage. Our study provides novel insight into the innate immune response against S. mutans infection.展开更多
Herpes simplex virus type 1 (HSV-1) naturallyestablishes latency in neurons of the nervous systemwith the concommitant expression of the latencyassociated transcripts (LATS) and the loss in
Sources of dispersions that contribute to delivery error and reduce the soldier performance in terms of hit probability are numerous.In order to improve the warfighter performance,the source of the errors contributing...Sources of dispersions that contribute to delivery error and reduce the soldier performance in terms of hit probability are numerous.In order to improve the warfighter performance,the source of the errors contributing to the inaccuracy and dispersion of the weapon systems must be understood.They include ammunition dispersion error,gun dispersion,aerodynamic jump and the aiming error.The aiming error or gun pointing error is defined as the angle between the gun muzzle at the instant the trigger is pulled and the line of fire that corresponds to the intendent aim point.This is a round-to-round error.In weapons systems that include the rifle,the ammunition,a sight and a gunner,the aiming error was shown to be the single most important source of dispersion for the regular infantryman.In other words,for the general purpose rifle weapon system,the weak link is often the human.In order to verify and quantify this assertion,an experimental investigation was carried out to determine the aiming error associated with general purpose rifle fired by infantryman.The aiming error was evaluated for various firing positions and scenarios using infantryman for ranges varying between 100 m and 500 m.The results show that the aiming error is the main contributor to dispersion for the general purpose rifle fired by a non-specialized infantryman.The aiming error induced dispersion for unstressed and rested gunners is shown to be at best equivalent to that of the weapon fired from a bench rest by a marksman.Crown Copyright(?) 2019 Production and hosting by Elsevier B.V.on behalf of China Ordnance Society.展开更多
文摘<strong>Objective</strong><span><span><span style="font-family:;" "=""><strong>:</strong> To evaluate and compare the prognostic contribution of different UGIB prognostic scores. <b>Patients and Method</b>: Descriptive cross-sectional study with retrospective collection conducted from January 2014 to December 2019. Patients hospitalized in the Gastroenterology Department of Campus Teaching Hospital of Lome for upper gastrointestinal hemorrhage were included. The analytical component of this study had consisted of an evaluation of the sensitivity and specificity of different prognostic scores (GBS, mGBS, FRS, CRS, AIMS65) in predicting the occurrence of death and/or re-bleeding within 42 days. These different scores were compared using ROC (Receiver Operating Characteristic) curves. <b>Results</b>: We included 314 patients in our study. The male to female sex ratio was 2.48. Fibroscopy found non-related portal hypertension UGIB in 70.94% of the cases. The “FRS” was the most accurate score in predicting death or re-bleeding in all patients. The “FRS” was the most precise score in predicting the occurrence of spotting in all patients. The “FRS” was the most accurate score in predicting death among all patients. The mortality of patients at low risk of death (below the threshold value) was 2.2% for the “FRS”, 9.3% for the “CRS”, 0% for the “GBS” (p = 0.565), 50% for the “mGBS” and 11.4% for the “AIMS65”. Scores were more accurate for non-related portal hypertension UGIB. <b>Conclusion</b>: The “FRS” and the “CRS” are two precise scores in predicting the occurrence of an incident in the event of upper gastrointestinal hemorrhage. However, these scores were less effective in related portal hypertension UGIB</span></span></span><span><span><span style="font-family:;" "="">.</span></span></span>
文摘At present,global industrial structure adjustment accelerates,infrastructure construction is still booming,and developing countries are vigorously promoting the industrialization and urbanization,all providing great opportunities for international cooperation on capacity and equipment manufacturing.In May 2015,the'Guiding Opinions of the State Council of the Peoples Republic of China on Promoting
文摘In the course of using precise visual instrument, aiming precision is an important parameter to analyze the measurement error. Usually, instrument calibrated error is set down as measurement error. In the paper, the precision theory of TC2003 theodolite is analyzed and some aiming experiments is done for different width line. Then, the relations between the width of line and aiming precision are shown by different aiming methods of two superposition solid lines and one line clipped by double lines. Finally, an effective method to improve aiming precision is proposed which adopts the aiming method of one line clipped by double lines.
文摘China's entry into the WTO means that Chinese enterprises stepped onto the "big competition arena of WTO". Accession to the WTO brought fierce challenge to all Chinese enterprises. For some enterprises, it is even a crisis; but on the other hand, it provides us broader markets and more developing opportunities. Whether challenge or opportunities. the key is how we shall cope with them. Just like a sword. advantages or disadvantages depend whether it's on the edge or handle that we are holding. Perhaps s...
文摘 Established on June 26, 1986 by the consolidation of four former CAS subordinates (namely,the Office of Policy Research, Division of Management Science, Editorial Department of the Journal of Dialectics of Nature, and Section of Optimization and Overall Planning under the CAS Institute of Applied Mathematics), the Institute of Policy and Management (IPM), CAS, is characterized by interdisciplinary studies of social and natural sciences. It applies itself to theoretical, methodological and applied research into national strategies, policies and management for S&T development. It also provides consultancy services for government departments, local authorities and CAS on issues concerning S&T development, social and economic growth, S&T management and administration of enterprises.……
文摘Quaternion realization of aiming stabilization of the mobile weapon is considered.Gyro compassing combined with an inclinometer is used for the measurement of the initial chassis orientation in respect of the geographical north and the horizontal plane.The same 3D gyroscope is used for the measurement of the subsequent incremental change of the chassis orientation.The goal of the proposed stabilization is to maintain the aiming geo coordinates generated by the fire control system while moving in an uneven terrain.
文摘Background:L-dopa(Levodopa)is well known for managing PD(Parkinson’s disease);however,its prolonged use caused dyskinesia(LID).Due to the varied presentation of LID,effective treatment options are scarce.Flavonoids reported their neuroprotective activity by ameliorating acetylcholinesterase,monoamine oxidase,and neuroinflammation.Kaempferol is anotherflavonoid bearing these potentials.Aim:To evaluate neuroprotective activity of kaempferol in dyskinetic rats.Methods:PD was developed in Sprague-Dawley rats by injecting combination of L-ascorbic acid(10µL)+6-OHDA(12µg)in medial forebrain bundle to induce neuronal damage in substantial nigra(SNr).LID was induced by administrating combination of L-dopa(20 mg/kg)+benserazide HCl(5 mg/kg)for 42 days.Rats were concomitantly treated with amantadine(40 mg/kg)or kaempferol(25,50,and 100 mg/kg,p.o.).Results:Kaempferol(50 and 100 mg/kg)markedly(p<0.05)inhibited LID-induced abnormal involuntary movements(AIMs)and alternation in motor function.Kaempferol administration considerably(p<0.05)inhibited reduced mitochondrial complex activities,serotonin and dopamine levels,Bcl-2,and Tyrosine hydroxylase protein expressions in SNr.Additionally,kaempferol considerably(p<0.05)attenuated increased cFOS,FosB,Parkin,and Pdyn mRNAs expressions,Bax,cleaved caspase-3,caspase-3,and pJNK proteins levels;DOPAC and 5-HIAA levels in SNr.A positive correlation was reported between cFOS,FosB,Parkin,Pdyn,apoptosis,and TH with AIMs.Conclusion:Kaempferol effectively attenuated L-dopa-induced AIMs and dyskinesia via amelioration of alterations in cFOS,FosB,Parkin,Pdyn,Tyrosine hydroxylase,and apoptosis in the brain SNr.
文摘This essay is to evaluate the course book New Practical English from four perspectives, including analysis of the learners, analysis of its aims, analysis of methodology and analysis of its content to prove that it is a comprehensive course suitable for students of vocational colleges.
文摘A novel upper gastrointestinal bleeding risk stratification score(AIMS65) has recently been developed and validated. It has advantages over existing risk scores including being easy to remember and lack of subjectivity in calculation. We comment on a recent study that has cast doubt on the applicability of AIMS65 in the peptic ulcer disease population. Although promising, further studies are required to evaluate the validity of AIMS65 in various populations.
基金A National Research Foundation of Korea (NRF) grant funded by the government of South Korea (MEST no. 2012R1A2A2A01015470) supported this research
文摘Streptococcus mutans(S. mutans), a major aetiologic agent of dental caries, is involved in systemic diseases, such as bacterial endocarditis, if it enters the bloodstream through temporary bacteraemia. Interleukin(IL)-1β, a proinflammatory cytokine, is related to the host defences against pathogens, and its synthesis, maturation, and secretion are tightly regulated by the activation of the inflammasome, an inflammatory signalling complex. This study examined the signalling mechanism of IL-1β secretion and the inflammasome pathway induced by S. mutans to explain the molecular mechanism through which systemic infection by oral streptococci can occur. After infection of THP-1 cells with S. mutans, the expression of inflammasome components was detected using various methods. S. mutans induced IL-1β secretion via caspase-1 activation, and S. mutans-induced IL-1β secretion required absent in melanoma(AIM2), NLR family pyrin domain-containing 3(NLRP3) and NLR family CARD domain-containing 4(NLRC4)inflammasome activation. In particular, the S. mutans-induced NLRP3 inflammasome was mediated by adenosine triphosphate(ATP) release, potassium depletion and lysosomal damage. Our study provides novel insight into the innate immune response against S. mutans infection.
文摘Herpes simplex virus type 1 (HSV-1) naturallyestablishes latency in neurons of the nervous systemwith the concommitant expression of the latencyassociated transcripts (LATS) and the loss in
文摘Sources of dispersions that contribute to delivery error and reduce the soldier performance in terms of hit probability are numerous.In order to improve the warfighter performance,the source of the errors contributing to the inaccuracy and dispersion of the weapon systems must be understood.They include ammunition dispersion error,gun dispersion,aerodynamic jump and the aiming error.The aiming error or gun pointing error is defined as the angle between the gun muzzle at the instant the trigger is pulled and the line of fire that corresponds to the intendent aim point.This is a round-to-round error.In weapons systems that include the rifle,the ammunition,a sight and a gunner,the aiming error was shown to be the single most important source of dispersion for the regular infantryman.In other words,for the general purpose rifle weapon system,the weak link is often the human.In order to verify and quantify this assertion,an experimental investigation was carried out to determine the aiming error associated with general purpose rifle fired by infantryman.The aiming error was evaluated for various firing positions and scenarios using infantryman for ranges varying between 100 m and 500 m.The results show that the aiming error is the main contributor to dispersion for the general purpose rifle fired by a non-specialized infantryman.The aiming error induced dispersion for unstressed and rested gunners is shown to be at best equivalent to that of the weapon fired from a bench rest by a marksman.Crown Copyright(?) 2019 Production and hosting by Elsevier B.V.on behalf of China Ordnance Society.
