Annual growth banding in a cave stalagmite

Nature ◽  
1993 ◽  
Vol 364 (6437) ◽  
pp. 518-520 ◽  
Author(s):  
Andy Baker ◽  
Peter L. Smart ◽  
R. Lawrence Edwards ◽  
David A. Richards
Keyword(s):  
Annual Growth ◽  
Growth Banding

SELECTED MORPHOMETRIC AND BIOLOGICAL CHARACTERISTICS OF IDE LEUCISCUS IDUS (LINNAEUS, 1758) IN THE LOWER IRTYSH

2017 ◽  
pp. 46-53
Author(s):  
Elizaveta L'vovna Liberman ◽  
Andrey Aleksandrovich Chemagin
Keyword(s):  
Maximum Rate ◽  
Linear Growth ◽  
Age Groups ◽  
Annual Growth ◽  
Recreational Fishing ◽  
Opisthorchis Felineus ◽  
Gonad Maturity ◽  
Study Results ◽  
Leuciscus Idus ◽  
Old Females

Ide Leuciscus idus (Linnaeus, 1758) belongs to Cyprinidae family and is used in commercial and recreational fishing. Ide is an intermediate host of Opisthorchis felineus . In the control catches (summer 2015, the Lower Irtysh, Uvatsky, Tobolsky and Vagaysky regions of Tyumenskaya Oblast’) there were observed species with lengths 11.9-38.1 cm, with a total weight 45-1085 g. Some species aged 9 years old and even older. The maximum rate of linear growth was registered in ide species younger than 3 years old, at this age annual growth made 5 cm. The annual growth of four-year-old females made 5.4 cm, males - 2.8 cm. Females aged 3+ exceeded males in body weight and length. Species at the age 1+…2+ years old added 204.6% in their mass; at the age 2+…3+ years old - 65.3%, at 3+…4+ years old - 29.4%. Gender and gonad maturity were determined in species older than 2+, but not in all species. Among females aged 2+…4+ there were found species with I and II stage of gonad maturity. Females aged 5+ were spawned-out species having VI-II stage of gonad maturity (48%); female species aged 6+ having IV stage of gonad maturity made 33.4%. Among males in the age groups of 2+ and 3+ there were registered species with I stage (38.5 and 20%, respectively) and II stage (61.5 and 80%, respectively) of maturation only. Fatness degree of studied species ranged from 0 to 5. Species aged 2+ had I stage (24% species); in the aged groups the proportion of such species decreased (5+ years old - 7.8%; 6+ years old - 12.1%; 8+ years old - 5.9%); species aged 2-7 had II stage of fatness; proportion of older species also decreased. Species with III and IV stage of fatness were found more often (III stage was observed in 100% of the fish species at the age of 1+). Proportion of species with V stage was minor, it increased with age. According to the analysis of the study results, nutritive base in the basin is found satisfactory for ide growth and development.

INFLUENCE OF INVESTMENTS ON THE ECONOMIC GROWTH OF THE COUNTRY

2020 ◽  
Vol 7 (3) ◽  
pp. 28-33
Author(s):  
Ravshan Mamatov ◽  
Keyword(s):  
Economic Growth ◽  
Annual Growth ◽  
Production Factors ◽  
Fixed Assets ◽  
Production Growth ◽  
Total Investment ◽  
The Republic ◽  
Investment In Fixed Assets

The economic growth of the Republic of Uzbekistan will depend on production factors that contribute to the annual growth of the country's GDP. At the same time, extensive production growth will lead to the implementation of unpromising investments. A growing share of innovation-oriented investments in the total investment in fixed assets in the country will lead to intensive economic growth in the country

Are Status of Women and Contraceptive Prevalence Correlated in Pakistan?

2000 ◽  
Vol 39 (4II) ◽  
pp. 1057-1073
Author(s):  
Abdul Hakem
Keyword(s):  
Economic Development ◽  
Annual Growth ◽  
High Rate ◽  
High Fertility ◽  
Historical Trends ◽  
Social And Economic Development ◽  
Contraceptive Prevalence ◽  
The 1960S ◽  
Populous Country ◽  
Status Of Women

Pakistan with an estimated population of around 142.5 million in mid 2001 is the seventh most populous country in the world and fourth in Asia and Pacific countries. The historical trends indicate a continuously increasing growth in population (Table 1). The population of the area now constituting Pakistan was 16.6 million in 1901. Since then the population has increased over eight-fold. Annual growth rates have risen from 1 percent in the first three decades of the century to around 2 percent in the next three decades and after peaking at little over 3 percent in the 1960s, has started showing a declining trend. Currently it is estimated that Pakistan’s population is growing at around 2.1 percent, still a very high rate of annual growth in population. Major contributing factor to the fast growth in population of Pakistan has been high fertility which has remained high for a very long period. It is evident that nearly 100 million population has been added to the population of Pakistan since 1961, that is, during the last four decades. Such rapid growth in population has several adverse implications for the socio-economic development of the country which has been offsetting the gains in social and economic development.

PERTUMBUHAN LINGKARAN POHON JATI PADA DUA SISTEM KULTUR BERBEDA DI JAWA TIMUR

2008 ◽  
Vol 6 (2) ◽  
Author(s):  
Iriwi Louisa S. Sinon
Keyword(s):  
Tree Ring ◽  
Tectona Grandis ◽  
Annual Growth ◽  
Natural Growth ◽  
Growth Rings ◽  
Climate Effect ◽  
Tropical Regions ◽  
Annual Growth Rings ◽  
Chronological Sequence ◽  
Plantation Teak

<p><em>Study dendrochronology or tree-ring dating is defined as the study of chronological sequence of annual growth rings in trees. Teak (Tectona grandis) is one of various tree species that has been identified for the use of tree-ring studies in tropical regions. Teak is found to be suitable for dendrochronology as it is long-lived and develops defined annual growth rings. In Java, teak cans growth naturally or intensively in plantation. The two silviculture conditions will give different sensitivity on climate effect. Therefore, the effect of silviculturer will on natural teak and plantation teak in Saradan, Madiun, and East Java. As a part of the study, ten core samples from natural- growth teak were measured. The samples of growth rings is spanned from 1832 – 2004. Using the COFECHA program, the correlation of the samples (r) was found to be 0.44 point, which is satisfactory to the standard used in dendrochronology. Thus, from this study it can be concluded that natural teak could still be used in dendrochronology, although the sensitivity are not as high as plantation teak. </em></p>

Ageing Saudi Population in the Facebook Era

2018 ◽  
Author(s):  
Asharaf Abdul Salam
Keyword(s):  
Growth Rate ◽  
Saudi Arabia ◽  
Population Ageing ◽  
Annual Growth ◽  
Annual Growth Rate ◽  
Saudi Population ◽  
Aged Population ◽  
Facebook Usage

<p>Data pertaining to 1974, 1992, 2004 and 2010 Censuses in Saudi Arabia was collected. Some reviews and literature on population ageing in Saudi Arabia as well as Facebook usage obtained. Statistics pertaining to Saudi population was utilized.</p> <p>Aged population in 2010 estimated by assuming the annual growth rate of 1974-2004.</p>

scholarly journals Association between triglyceride-glucose index and risk of arterial stiffness: a cohort study

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Shouling Wu ◽  
Luli Xu ◽  
Mingyang Wu ◽  
Shuohua Chen ◽  
Youjie Wang ◽  
...  
Keyword(s):  
Growth Rate ◽  
Linear Regression ◽  
Arterial Stiffness ◽  
Multivariate Linear Regression ◽  
Annual Growth ◽  
Annual Growth Rate ◽  
Cross Sectional ◽  
Tyg Index ◽  
Longitudinal Association ◽  
The Cross

Abstract Background Triglyceride–glucose (TyG) index, a simple surrogate marker of insulin resistance, has been reported to be associated with arterial stiffness. However, previous studies were limited by the cross-sectional design. The purpose of this study was to explore the longitudinal association between TyG index and progression of arterial stiffness. Methods A total of 6028 participants were derived from the Kailuan study. TyG index was calculated as ln [fasting triglyceride (mg/dL) × fasting glucose (mg/dL)/2]. Arterial stiffness was measured using brachial-ankle pulse wave velocity (baPWV). Arterial stiffness progression was assessed by the annual growth rate of repeatedly measured baPWV. Multivariate linear regression models were used to estimate the cross-sectional association of TyG index with baPWV, and Cox proportional hazard models were used to investigate the longitudinal association between TyG index and the risk of arterial stiffness. Results Multivariate linear regression analyses showed that each one unit increase in the TyG index was associated with a 39 cm/s increment (95%CI, 29–48 cm/s, P < 0.001) in baseline baPWV and a 0.29 percent/year increment (95%CI, 0.17–0.42 percent/year, P < 0.001) in the annual growth rate of baPWV. During 26,839 person-years of follow-up, there were 883 incident cases with arterial stiffness. Participants in the highest quartile of TyG index had a 58% higher risk of arterial stiffness (HR, 1.58; 95%CI, 1.25–2.01, P < 0.001), as compared with those in the lowest quartile of TyG index. Additionally, restricted cubic spline analysis showed a significant dose–response relationship between TyG index and the risk of arterial stiffness (P non-linearity = 0.005). Conclusion Participants with a higher TyG index were more likely to have a higher risk of arterial stiffness. Subjects with a higher TyG index should be aware of the following risk of arterial stiffness progression, so as to establish lifestyle changes at an early stage.

National Health Expenditure Projections: Modest Annual Growth Until Coverage Expands And Economic Growth Accelerates

2012 ◽  
Vol 31 (7) ◽  
pp. 1600-1612 ◽  
Author(s):  
Sean P. Keehan ◽  
Gigi A. Cuckler ◽  
Andrea M. Sisko ◽  
Andrew J. Madison ◽  
Sheila D. Smith ◽  
...  
Keyword(s):  
Economic Growth ◽  
National Health ◽  
Health Expenditure ◽  
Annual Growth ◽  
National Health Expenditure

CEMENTAL DEPOSITION AS AN AGE CRITERION IN BISON, AND THE RELATION OF INCISOR WEAR, EYE-LENS WEIGHT, AND DRESSED BISON CARCASS WEIGHT TO AGE

1965 ◽  
Vol 43 (1) ◽  
pp. 173-178 ◽  
Author(s):  
N. S. Novakowski
Keyword(s):  
Aging Process ◽  
Annual Growth ◽  
Carcass Weight ◽  
Chronological Age ◽  
Eye Lens ◽  
Tooth Replacement ◽  
Northern Latitudes ◽  
Growth And Aging

The relation of cemental deposition, incisor wear, eye-lens weight, and dressed carcass weight to age in bison was investigated in an attempt to define this relation on the basis of annual increments. It was expected that the bison, particularly in northern latitudes, would be subject to a cyclic or annual growth and aging process which would be reflected in an analysis of the above criteria. It was found that cemental deposition occurred in the premolars and molars beyond age 4 1/2 and that this deposition appeared in the form of alternating layers of translucent and opaque cementum, each set combined to form one annual band. Incisor wear provided a further check on this technique. It was found that eye-lens weight and dressed carcass weight were not reliable indicators of chronological age, particularly beyond 4 1/2 years of age when tooth replacement could not be used to define the limits of variability found in eye-lens weights and dressed carcass weights.

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