population ecology and community structure

... affinities, and sensitivities to various environmental factors (e.g., pH, temperature, O 2 concentration and substrate concentrations). Thus, a better understanding of microbiology, ecology, and population ... situ hybridization (FISH) and microsensor techniques have a high spatial (at a single-cell resolution) and temporal resolution and great potential, and provide reliable and direct information about ... nitrifying bacterial populations and the in situ activity of these populations within the biofilms was discussed. Microsensors For analysis of microbial structure and function (activity)...

Ngày tải lên: 05/09/2013, 08:40

... TIN trang 57 HỆ QUẢN TRỊ CƠ SỞ DỮ LIỆU CHƯƠNG III LƯU TRỮ VÀ CẤU TRÚC TẬP TIN (Storage and File Structure) MỤC ĐÍCH Chương này trình bày các vấn đề liên quan đến vấn đề lưu trữ dữ ... trang 46 HỆ QUẢN TRỊ CƠ SỞ DỮ LIỆU khác với định nghĩa khoá sơ cấp (primary key), khoá dự tuyển (candidate key), và siêu khoá (superkey). Như vậy, nếu có một vài chỉ mục trên một file, có một vài ... tự toàn bộ file lẫn truy xuất ngẫu nhiên đến một mẩu tin. Chỉ mục đặc và chỉ mục thưa (Dense and Sparse Indices) Chỉ mục đặc Brighton A-217 750 Downtown A-101 500 Downtown A-110 600...

Ngày tải lên: 15/09/2012, 09:38

... (cm 2 ) 38 2 CHƯƠNG 2 CHƯƠNG TRÌNH MÔ PHỎNG MỘTCHIỀU AMPS – 1D (Analysis of Microelectronic and Photonic Structures) Chương trình mô phỏng một chiều AMPS – 1D là một chương trình đa năng để khảo ... thấp 14 2 CHƯƠNG 2 CHƯƠNG TRÌNH MÔ PHỎNG MỘTCHIỀU AMPS – 1D (Analysis of Microelectronic and Photonic Structures) 15 2.1 Phương trình Poisson 15 2.1.1 Nồng độ điện tử tự do và nồng độ lỗ trống...

Ngày tải lên: 18/03/2013, 13:40

Ngày tải lên: 05/09/2013, 10:15

... command %s\n", s); break; } } return 0; } Because + and * are commutative operators, the order in which the popped operands are combined is irrelevant, but for - and / the left and ... this program, the functions push and pop could be defined in one file, and the variables val and sp defined and initialized in another. Then these definitions and declarations would be necessary ... applied to them, and the result is pushed back onto the stack. In the example above, for instance, 1 and 2 are pushed, then replaced by their difference, -1. Next, 4 and 5 are pushed and then replaced by...

Ngày tải lên: 30/09/2013, 06:20

... remote and magnifi- cent island.” Then I considered the essay’s title: “The Island at the End of the Earth.” Hmm. In many seagoing cultures, the islands at the end of the world are where the dead and ... speed around eight pm and begin increasing expo- nentially; they double in size every hour One can imagine Billy standing at the helm and grip- ping the wheel with the force and stance one might ... Pierre, David Sullivan, Bugsy Moran, Dale Murphy, and Bobby Shatford are surely dead. The reader sees them clearly, sinking down and down and down, limp and open-eyed. The book continues, however,...

Ngày tải lên: 25/10/2013, 07:20

... 1 Chapter 6 The Risk and Term Structure of Interest Rates Copyright 2011  Pearson Canada Inc. 6 - 8 Term Structure of Interest Rates • Bonds with identical risk, liquidity, and tax characteristics ... determined by the demand for and supply of that bond. • Investors have preferences for bonds of one maturity over another. • If investors have short desired holding periods and generally prefer ... slope upward when short-term rates are low and to be inverted when short-term rates are high; explained by the liquidity premium term in the first case and by a low expected average in the second...

Ngày tải lên: 05/01/2014, 16:56

Ngày tải lên: 24/01/2014, 19:20

Ngày tải lên: 24/01/2014, 23:20

... to Population Growth," in H. Chenery and T.N. Srinivasan, eds., Handbook of Development Economics, Vol. 1 (Amsterdam: North Holland). Birdsall, N. and D. Jamison (1983), "Income and ... J. and S.C. Watkins (1996), "Social Interactions and Contemporary Fertility Transitions", Population and Development Review, 22(4), 639-682. Boserup, E. (1981), Population Growth and ... Press). Dyson, T. and M. Moore (1983), "On Kinship Structure, Female Autonomy, and Demographic Behaviour in India", Population and Development Review, 9(1), 35-60. Easterlin, R., R. Pollak and M....

Ngày tải lên: 13/02/2014, 10:20

... to and efficiently responding to the needs of all segments of the population, including the elderly. Discussion, Conclusions, and Recommendations on China Population Aging The pace and ... in both fertility and longevity, the elderly share of China's population has been increasing, and those ages 60 and over are set to form a rapidly growing share of the population (see Figure ... savings in anticipation of retirement, and the flexibility of capitalist economies to adapt to changes in labor supply and demand and to alter management and labor practices in light of changing...

Ngày tải lên: 13/02/2014, 18:20

... solving, genetic algorithms, and complexity studies. He develops and presents training courses and intensive short courses and workshops on object -oriented problem solving and object-oriented languages. ... programming, and classical data structures. The software development principles associated with OOP provide a strong framework for presenting and implementing classical data structures. We adhere to and ... fits this bill. It provides constructs and predefined standard libraries that directly support and connect to the rich body of underlying OOP and data structure principles. We have chosen Java...

Ngày tải lên: 14/02/2014, 04:20

... manual and a utomated measures of the hippocampus was lower (r=0.82; p b .001) as expected given the small size of this structure and the different landmarks used for segmenting this structure. ... parietal and midline occipital regions bilaterally. In spite of differences in diet, lifestyle and culture, these findings are broadly comparable to studies conducted in Caucasian populations and suggest ... conducted in Caucasian populations and speaks to the generalizability of processes involved in age-related decline in cognition and brain volume. Decline in cognition with age and effects of other...

Ngày tải lên: 14/02/2014, 06:20

... we set π(α)=a, π(β)=b and we define π(γ):=c. (then abc = 1). MODULI SPACES OF SURFACES AND REAL STRUCTURES 591 and V. Kharlamov for a useful conversation, V. Kulikov and Sandro Manfre- dini for ... n 0 =3 ,and ν 3 =3yields the usual contradiction. Thus ν 3 =1=ν 2 and then m 3 = n 3 =2,ν 1 =2,n 0 =3,n 2 =2m 1 = m 2 and we have therefore the case d = 3and branching indices (2,m 1 , 2m 1 ) for G and ... the symplectic structure of an algebraic surface. The referee of this paper points out an important fact: the standard diffeomorphism between S and S car- ries the canonical class K S to −K S , and moreover...

Ngày tải lên: 14/02/2014, 16:20

... public฀ and private฀ employment and self-employment.฀Generally,฀it฀was฀mainly฀Asian and white฀graduates฀ who฀moved฀into฀ self-employment and, ฀even฀ then,฀mainly฀ those฀in฀the฀medical฀ and legal฀fields.฀Overall,฀only฀a฀small฀proportion฀of฀graduates฀in฀the฀survey฀were฀in฀self- employment.฀The฀movement฀between฀the฀public and private฀sector฀was฀much฀more฀ significant.฀The฀public฀sector฀is฀an฀important฀first฀employer,฀particularly฀for฀African฀ graduates.฀Other฀race฀groups฀tend฀to฀find฀subsequent฀jobs฀in฀the฀private฀sector,฀while฀ African฀graduates฀tend฀to฀remain฀in฀public฀sector฀employment.฀The฀public฀sector฀is฀ crucially฀important฀for฀African฀graduates฀–฀76,7%฀of฀the฀African฀graduates฀surveyed฀ found฀ ... www.hsrcpress.ac.za 1 Inequalities฀in฀Higher฀Education and the Structure of฀the฀Labour฀Market Introduction The฀relationship฀between฀education and economic฀growth and development฀in฀South฀ Africa฀has฀been฀widely฀studied and its฀importance฀acknowledged.฀Higher฀education฀ has฀a฀particularly฀important฀role฀to฀play฀in฀the฀overall฀development฀of฀the฀economy.฀It฀ has฀over฀the฀years฀provided฀society฀with฀highly฀skilled,฀professional฀workers and must฀ continue฀to฀do฀so.฀Higher฀education฀also฀has฀a฀key฀role฀to฀play฀in฀extending฀educational฀ benefits฀to฀the฀disadvantaged,฀thus฀contributing฀to฀equal฀opportunities and fairness.฀ However,฀for฀these฀roles฀to฀be฀realised,฀the฀education฀system฀has฀to฀be฀effective and efficient฀with฀improved฀education฀outcomes.฀The฀changing฀nature฀of฀labour฀markets฀ is฀placing฀a฀premium฀on฀technical฀expertise and occupational฀competencies฀as฀well฀as฀ on฀the฀matching฀of฀educational฀qualifications฀with฀prospective฀employment.฀All฀this฀ has฀ ... secondary฀ schooling.฀Overall,฀the฀proportions฀of฀those฀enrolled฀in฀various฀fields฀of฀study฀show฀ a฀move฀away฀from฀a฀concentration฀of฀graduates฀in฀humanities and arts-related฀fields฀ and an฀ improvement฀ in฀ enrolments฀ in฀ science,฀ engineering฀ and technology-related฀ fields, and in฀business and commerce.฀These฀figures฀also฀show฀a฀shift฀with฀regard฀to฀ race.฀There฀is฀an฀increase฀in฀Africans฀enrolling฀in฀the฀fields฀of฀science and business and commerce฀relative฀to฀those฀who฀enrol฀in฀the฀humanities and arts.฀However,฀it฀remains฀ to฀be฀seen฀if฀these฀enrolment฀rates฀will฀translate฀into฀similar฀proportions฀in฀graduation฀ rates฀in฀the฀coming฀years.฀ Table฀2:฀Enrolment฀distribution฀in฀three฀Departments฀of฀Education’s฀fields฀of฀study,฀by฀ population group,฀2002 Field฀of฀study...

Ngày tải lên: 15/02/2014, 17:20

... 2003), they can assess population characteristics and processes (demographic and genetic structure, natality, survival, and recruitment) and relate them to specific conserva- tion and management goals. ... Conservation Techniques in Ecology and Conservation Series Series Editor: William J. Sutherland Bird Ecology and Conservation: A Handbook of Techniques William J. Sutherland, Ian Newton, and Rhys E. Green Conservation ... Principles and Techniques Mick N. Clout and Peter A. Williams Amphibian Ecology and Conservation: A Handbook of Techniques C. Kenneth Dodd, Jr. Insect Conservation: A Handbook of Approaches and Methods Michael...

Ngày tải lên: 17/02/2014, 17:20

Ngày tải lên: 17/02/2014, 19:20

Ngày tải lên: 17/02/2014, 19:20

Ngày tải lên: 19/02/2014, 07:20

Ngày tải lên: 19/02/2014, 19:20