population-based study 中文意思是什麼

population-based study 解釋
以人群為基礎的研究
  • population : n. 1. 人口；人口總數；全體居民；人口的聚居。2. 物的全體[總數]；【生物學】蟲口；種群（量）；群體；族，組，個數；【統計學】對象總體，全域。3. 【物理學】布居；密度。4. 〈罕用語〉殖民。
  • based : 基準
  • study : n 1 用功，勤學；〈常 pl 〉學習；研究 （of）; 研究對象；研究項目；值得研究的問題；學問，學業，學科...
  1. In this paper, based on land use maps of 1976, 1988, 2003, which were interpreted from the landsat mss / tm / etm imageries, and the map of main road, with the buffer analysis tool in arcgis 8, we studied the land use and land cover change on the two sides of the main roads in xishuangbanna, then we studied the impact of population density and the topographic factor on road effects. during the study both the comprehensive land use dynamic degree model and the land use degree comprehensive index model are taken into account, we put forward a compensatory model ? “ amendatory comprehensive land use dynamic degree model ”

    由於人類活動干擾強度加大，公路效應深度不斷擴展， 1976年為5km ， 1988年為7km ， 2003年達到11km ;受自然、社會條件的影響，不同路段的公路效應存在較大差異，甚至同一路段兩側效應也各不相同。 1976年至2003年，距公路不同距離范圍內的人口密度都在增加，且距離公路越近，人口數量密度越大、增長越快，人口分布有向公路兩側聚集的趨勢。選取人口密度為大、中、小三個樣區分別分析公路效應的范圍表明，人口密度
  2. Based on the field investigations and laboratory examinations, a study of the population of the epiphytic dolichomitriopsis diversformis ( mitt. ) nog. in fanjing mountain reveals that its habitats are different among different host trees, but that there lies the common habitat characteristics of not more than 2m height from the bottoms of host trees trunks, less light, high relative humidity, slow wind speed, slow evaporation speed and long time of remaining humid in middle - lower tree bark ; that it is one dioecious moss species, the morphology is remarkably different between its perichaetium and perigonium, the number of its perichaetia is much more than that of its perigonia, its perigonium is difficult to find out, its sporophyte is upright, its seta is long and thin, its capsule is regular long oval and its calyptra is cucullate

    摘要通過野外調查和室內觀測對貴州省梵凈山樹附生尖葉擬船葉蘚種群的研究表明，其生境因其所附生的樹種不同而有所不同，但具有共同特點：附生在樹干下部距地面2m高的范圍之內，光照弱、濕度大、風速小、蒸發量小、中下部樹皮保持濕潤的持續時間長；其為雌雄異株蘚種，雌、雄器苞形態差異明顯，雌器苞數量多，雄器苞數量少並且難于發現，孢子體直立，蒴柄細長，孢蒴規則長卵形，蒴帽兜形。
  3. Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development ", stated and commented the study status in queue on " sustainable development " around national and international range, thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the matlab software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the b - j method and morte - carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources, the inside conditions are the follows : correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows : the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water - saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy ; lint out the more directions on groundwater resources

    基於以上考慮，論文主要從以下幾方面對地下水資源可持續開發問題進行了比較深入的探討：全面回顧了「可持續發展」概念的由來與演變，對國內外「可持續發展」的研究現狀進行了述評，並對「可持續發展」概念的科學內涵進行了深入探討；對涉及地下水資源的一些最基本的概念和命題進行了全面的回顧和評述，對目前仍然存在的一些錯誤觀點和混亂認識提出了自己的見解；全面闡述了地下水資源變值系統理論的內容和意義，並與傳統的地下水資源計算評價方法進行了對比分析，結合實例具體說明了方法的應用；深入分析了地下水資源預測預報工作的極端重要性和復雜性，對傳統的地下水資源動態預測方法進行了全面的評述，指出了各類預測預報方法的特點及適用條件，對最近二十多年剛發展起來的小波分析技術的主要思想和方法及其應用范圍，以及號稱第五代計算機語言的matlab軟體和附帶的小波分析工具箱進行了介紹，並應用於地下水動態過程線的分析，採用時間序列中的b ? j法，蒙特卡羅方法，與地下水資源變值系統理論相結合，探討了地下水動態資料分析和地下水資源預測預報的新思路；綜合分析了現今各類地下水管理模型的特點及缺陷，將數學規劃、數理統計、隨機過程等與地下水變值系統理論相結合進行地表水地下水或多水源的聯合優化調度，使模型更準確、更實用；對保證地下水資源可持續開發的內部條件和外部條件進行了分析，內部河海人學博卜學位論文前言、摘要、目錄條件主要是正確的資源觀，科學的資源計算與評價方法，可靠的資源預測預報技術，可操作的資源管理措施，外部條件主要是高層發展思路、管理體制的變革、配套的政策法規、經濟杠桿的調節、人文素質的提高、節水意識的增強及具體節水措施、人口增長的控制、水體污染的防治、生態的恢復和重建等;從宇宙科學、地球系統科學及哲學的高度審視地下水資源的可持續開發;指出了地下水資源可持續開發的進一步研究方向。
  4. This investigation of the two species is mainly dealing with their morphological characters, population biology, pollination biology and molecular biology, based on the following methods such as section slides, sem, artificial pollination, rapd analysis and gravity glass slides. this study is intended to demonstrate the distribution patterns of the populations for the two species, the numerical and spatial characteristics of ecological difference, the biological characters of seeds, pollination mode and reproductive stratigies, and molecular genetics. in light of the results from this study, the reasons that resulted in the present dangerous situation for the two species were discussed, and the suggestions for protecting them were proposed

    本研究以種群為單位，採用石蠟切片、掃描電鏡、重力玻片、人工授粉、 rapd分析等方法，對兩種植物的形態生物學、種群生物學、繁殖生物學和分子生物學等方面進行了詳細研究，以揭示它們的種群分佈類型及成因、種群生態環境差異的數量特徵和空間特徵、種子生物學特徵、傳粉和生殖策略以及種群分子遺傳特徵，進而探討兩物種瀕危的成因和機制，並針對性地提出了科學合理的保護對策和建議。
  5. Submersed land area including different utilizing type by sea water are calculated and the potential economic loss and population affected by the submerged disaster are assessed for no defence ， different sea - level rise and high water level. furthermore, special topic maps of fatalness of sea level rise, vulnerability of land system, socio - economic and ecological vulnerability, and defending ability are produced. the following results are combined with the basic study cell based on area source model following mathematical models of risk evaluation, considered of defence or no defence

    運用海平面上升災害危險性、土地系統易損性、社會生態經濟易損性和抗災能力的數學模型，在mapinfo軟體下運行，得到該區上述四種評估因子的專題圖；並分別按照考慮抗災能力以及不考慮抗災能力兩種情況，用海平面上升災害風險評估模型融合各因子，得到遼河三角洲（盤錦市）海平面上升災害綜合風險評估圖。
  6. Based on population of 53 listed companies in china a share market which executed seasoned equity offering from 1998 to present, this study exams the market reaction in the announcement day, issuance day and listing day of seasoned equity offering, and then study the most important influence factors of the market reaction. then we analyze whether there is a window of opportunity for seasoned equity offering

    本文選取了從1998年到現在中國證券市場上增發a股的53家公司作為樣本，考察我國a股市場在公司增發的股東大會決議公告日（公告日） 、發行日和上市日的市場反應，並研究市場反應的主要影響因素，從而分析是否存在增發的「機會之窗」 。
  7. " keep hong kong sars - free " was the first population - based study to determine the prevalence of asymptomatic sars - associated coronavirus ( sars - cov ) infection in hong kong

    全港誓師?抗炎七cc是首項為了解香港在sars爆發期間，曾受感染但沒有出現病?的病人的研究。
  8. On population based case - control study of upper digestive tract cancer

    以全人群為基礎的上消化道癌病例對照研究
  9. Pharmacogenomics is the study of the stratification of the pharmacological re o e to a drug by a population based on the genetic variation of that population

    藥物遺傳學是基於人群的遺傳變異研究該人群對藥物的遺傳反應的分別。
  10. Pharmacogenomics is the study of the stratification of the pharmacological response to a drug by a population based on the genetic variation of that population

    藥物遺傳學是基於人群的遺傳變異研究該人群對藥物的遺傳反應的分別。
  11. Based on the data from a sample survey entitled study of population childbearing willing in guangdong conducted by population and family planning committee of guangdong province and population institute of sun yat - sen university in october 2004, this paper analyzes the effect of individual features, policy and motives of chlidbearing on the desired childbearing number of guangdong population

    摘要本文利用廣東省人口與計劃生育委員會與中山大學人口研究所2004年10月進行的題為「廣東省人口生育意願研究」的抽樣調查數據，分析了個人因素、政策因素以及生育目的對廣東人口意願生育數量的影響。
  12. The essential research of employment is the supply and demand of labor force. imitating the population research, we introduce the transfer probability and set up an evolutive model of labor distribution based on the age and occupation classification of labor force, then we use the model to study the practical transfer rule for labor force in different vocations

    就業問題的本質是勞動力供需的研究，本文仿照人口研究，引進轉移概率，建立了一個基於勞動力年齡分類和行業分類的勞動力就業分佈的動態演化模型，具體研究勞動力在行業間的轉移規律，對我國勞動力市場展開定量分析研究。
  13. In the second charper, two reformed metheds has presented, which are competition adaptation - ga based on elitist and dual mutation adaptive - ga which can increase the population diversity and can decrease the dependence of genetic algorithms " result to the control parameter of operators and the status of initial population. to testify their abilities of algorithms, some studies have excuted which included the study to optimize parameter for pid and the study to multivariable intelligent decoupling control for mimo system. the outcomes have showed us that this amendment has a better effective than conventional means and the genetic algorithms which have no change

    第二章中，在已有文獻的基礎上，創新性的提出兩種改進演算法：基於最優保留的聯賽競爭機制遺傳演算法（ competitionadaptation - gabasedonelitist ）和雙變異自適應遺傳演算法（ dualmutationadaptive - ga ） ；通過對演算法中選擇運算元和變異運算元的有效改進，提高了演算法的尋優能力和尋優效率，增加了群體中個體模式的多樣性，對于演算法中存在的欺騙問題、早熟問題以及成熟前收斂問題有明顯的改進作用。
  14. Comment : the results of this population - based study confirm those of previous studies that found an association between multiple doses of antibiotics and development of childhood asthma and provide yet another reason to avoid unnecessary use of antibiotics, particularly broad - spectrum agents

    評論：這個人群研究的結果證實了之前研究的結果：發現了多倍劑量的抗生素治療和哮喘發病之間的關系，為避免使用不需要用的抗生素提供了又一個理由，特別是廣譜抗生素。
  15. We test the hypothesis that sense of coherence ( soc ), a marker of social stress adaptive capacity, is associated with incident stroke in a population - based prospective cohort study

    在對基於種群的前瞻性隊列研究中我們對一個相關性意義（ soc ）的假說進行了試驗，即對社會壓力適應能力的標記與突發中風的相關性意義。
  16. This is the first study to evaluate cap risk among finasteride users in a population - based setting and compare it to that of alpha - blocker users

    這項研究首次在全人群病例中研究非那雄胺使用者中前列腺癌的危險性，並與阻滯劑使用這對比。
  17. Prevalence of mild cognitive impairment : a population - based study in elderly veterans

    軍隊干體所老年人輕度認知功能損害的患病率調查
  18. Methods. data of a dutch population - based study were used, limited to persons 25 to 64 years of age ( n 2517 ). data were collected by a postal questionnaire

    方法：採用荷蘭人群研究數據，對象年齡范圍在25 - 64歲之間，總共2517例。數據通過郵遞問卷形式採集。
  19. " in conclusion, in this prospectie, population - based study, we found that measures of generalized atherosclerosis predict the onset of atrial fibrillation in persons without obious coronary heart disease, " the team writes

    小組寫下： 「結論是，在這個預期的基於人群的研究中，對于無明顯冠心病的病人，一般的動脈硬化測評可以預計房顫的發病。 」
  20. A population - based, cross - sectional study using data on women that deliered singleton births between 20 and 43 weeks in missouri ( 1989 - 1997 ) was conducted ( n = 626, 883 )

    本研究基於人口學的橫斷面研究。所選擇的對象是1989 - 1997年密蘇里州生育一胎的婦女，年齡由20歲- 43歲。
分享友人
分享到 Line

分享到臉書