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Artykuły w czasopismach na temat „High fertility”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Bledsoe, Caroline H., René Houle, and Papa Sow. "High fertility Gambians in low fertility Spain." Demographic Research 16 (May 3, 2007): 375–412. http://dx.doi.org/10.4054/demres.2007.16.12.

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Edwards, S. "Schooling's Fertility Effect Greatest in Low-Literacy, High-Fertility Societies." International Family Planning Perspectives 22, no. 1 (1996): 43. http://dx.doi.org/10.2307/2950803.

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Toulemon, Laurent, Ariane Pailhé, and Clémentine Rossier. "France: High and stable fertility." Demographic Research 19 (July 1, 2008): 503–56. http://dx.doi.org/10.4054/demres.2008.19.16.

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Robinson, W. C. "High Fertility as Risk-Insurance." Population Studies 40, no. 2 (1986): 289–98. http://dx.doi.org/10.1080/0032472031000142086.

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Groene, Emily A., Cyrialis Mutabuzi, Dickson Chinunje, Ester Matson Shango, Shalini Kulasingam, and Charles Riziki Majinge. "Comparing infertility-related stress in high fertility and low fertility countries." Sexual & Reproductive Healthcare 29 (September 2021): 100653. http://dx.doi.org/10.1016/j.srhc.2021.100653.

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Stieglitz, Jonathan, Benjamin C. Trumble, Hillard Kaplan, and Michael Gurven. "Marital violence and fertility in a relatively egalitarian high-fertility population." Nature Human Behaviour 2, no. 8 (2018): 565–72. http://dx.doi.org/10.1038/s41562-018-0391-7.

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Yüceşahin, M. Murat, and E. Murat Özgür. "Regional fertility differences in Turkey: persistent high fertility in the southeast." Population, Space and Place 14, no. 2 (2008): 135–58. http://dx.doi.org/10.1002/psp.480.

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Apriwana, Cintami. "Pengaruh Faktor Sosial Ekonomi terhadap Tingkat Fertilitas di Kecamatan Tembalang Kota Semarang." Efficient: Indonesian Journal of Development Economics 2, no. 3 (2019): 598–605. http://dx.doi.org/10.15294/efficient.v2i3.35952.

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Fertility is one of the causes of the high population in an area. The problem in this study showed the high level of fertility in Sub-district Tembalang, Semarang, although the population of the District Tembalang is a second largest population after the District Pedurungan. The subjects of this study were heads mother in Sub Tembalang. This study using a sample of 100 respondents of the total population which is 10.600 people The analytical tool used in this study is descriptive analysis and multiple linear regression by using SPSS software version 16.0.The results are obtain socioeconomic va

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Ribar, David C. "Teenage Fertility and High School Completion." Review of Economics and Statistics 76, no. 3 (1994): 413. http://dx.doi.org/10.2307/2109967.

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Caldwell, John C., and Pat Caldwell. "High Fertility in Sub-Saharan Africa." Scientific American 262, no. 5 (1990): 118–25. http://dx.doi.org/10.1038/scientificamerican0590-118.

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Hohos, Natalie M., and Malgorzata E. Skaznik-Wikiel. "High-Fat Diet and Female Fertility." Endocrinology 158, no. 8 (2017): 2407–19. http://dx.doi.org/10.1210/en.2017-00371.

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Xu, Y. B., Z. T. Shen, and C. H. Shi. "Effect of High Temperature on Rice Spikelet Fertility." International Rice Research Newsletter 14, no. 2 (1989): 13–14. https://doi.org/10.5281/zenodo.7146582.

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This article 'Effect of High Temperature on Rice Spikelet Fertility' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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13

López-Gatius, F., I. García-Ispierto, P. Santolaria, J. Yániz, C. Nogareda, and M. López-Béjar. "Screening for high fertility in high-producing dairy cows." Theriogenology 65, no. 8 (2006): 1678–89. http://dx.doi.org/10.1016/j.theriogenology.2005.09.027.

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Ruiz-Valderrama, Lorena, José Edwin Mendoza-Sánchez, Ernesto Rodríguez-Tobón, et al. "High-Fat Diets Disturb Rat Epididymal Sperm Maturation." International Journal of Molecular Sciences 26, no. 5 (2025): 1850. https://doi.org/10.3390/ijms26051850.

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Infertility is increasingly recognized as being closely linked to obesity in humans. The successful production of fertile spermatozoa requires adequate spermatogenesis within the testis and proper spermatozoa maturation through the epididymis. This study aimed to evaluate the impact of body adiposity on male fertility, focusing on sperm parameters, epididymal sperm maturation, and sperm capacitation in Wistar rats. Male rats were randomized into three dietary groups over four weeks: a control group receiving less than 4% lard, regular chow, a 10% lard group, and a 60% lard group. Following die

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15

Dubuc, Sylvie. "Immigration to the UK from High-Fertility Countries: Intergenerational Adaptation and Fertility Convergence." Population and Development Review 38, no. 2 (2012): 353–68. http://dx.doi.org/10.1111/j.1728-4457.2012.00496.x.

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Alemu, Melaku Birhanu, Ayal Debie, Samrawit Birhanu Alemu, and Gizachew A. Tessema. "Residential and wealth-related disparities of high fertility preferences in Ethiopia: A decomposition analysis." PLOS ONE 19, no. 3 (2024): e0299443. http://dx.doi.org/10.1371/journal.pone.0299443.

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Background Fertility preference significantly influences contraceptive uptake and impacts population growth, especially in low and middle-income countries. In the previous pieces of literature, variations in fertility preference across residence and wealth categories and its contributors were not assessed in Ethiopia. Therefore, we decomposed high fertility preferences among reproductive-aged women by residence and wealth status in Ethiopia. Methods We extracted individual women’s record (IR) data from the publicly available 2016 Ethiopian Demographic Health Survey (EDHS) dataset. A total of 1

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Michaelis, Marten, Alexander Sobczak, Dirk Koczan, et al. "Testicular transcriptional signatures associated with high fertility." Reproduction 155, no. 2 (2018): 219–31. http://dx.doi.org/10.1530/rep-17-0392.

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Abstract Factors of high fertility are poorly described. The majority of transgenic or knockout models with a reproductive phenotype are subfertile or infertile phenotypes. Few genotypes have been linked to improved reproductive performance (0.2%) or increased litter size (1%). In this study, we used a unique mouse model, fertility line FL1, selected for ‘high fertility’ for more than 170 generations. This strain has almost doubled the number of littermates as well as their total birth weight accompanied by an elevated ovulation rate and increased numbers of corpora lutea compared to a randoml

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Hoem, Jan M. "Why does Sweden have such high fertility?" Demographic Research 13 (November 24, 2005): 559–72. http://dx.doi.org/10.4054/demres.2005.13.22.

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Heisel, Donald F., and Ron J. Lesthaeghe. "Cultural Aspects of Africa's High Fertility Rates." International Family Planning Perspectives 16, no. 4 (1990): 149. http://dx.doi.org/10.2307/2133589.

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Pryce, J. E., M. D. Royal, P. C. Garnsworthy, and I. L. Mao. "Fertility in the high-producing dairy cow." Livestock Production Science 86, no. 1-3 (2004): 125–35. http://dx.doi.org/10.1016/s0301-6226(03)00145-3.

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Bongaarts, John. "The Proximate Determinants of Exceptionally High Fertility." Population and Development Review 13, no. 1 (1987): 133. http://dx.doi.org/10.2307/1972125.

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Sindiga, Isaac. "The persistence of high fertility in Kenya." Social Science & Medicine 20, no. 1 (1985): 71–84. http://dx.doi.org/10.1016/0277-9536(85)90314-4.

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Olaseinde, Olugbenga Sunday, Olusola Gabriel Owagbemi, Justina Olufunke Aruna, and Miracle-Eunice Bolorunduro. "Fertility Intentions Among High-Parity Women in Nigeria: How Satisfying Are Four Living Children?" Journal of Population and Social Studies 30 (March 15, 2022): 488–507. http://dx.doi.org/10.25133/jpssv302022.028.

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The efforts at reducing Nigerian rapid population growth are anchored in strategies to achieve fertility decline. These approaches have yielded negligible impact as fertility preference remains high among most Nigerian women of reproductive age who are still giving birth to more than an average of four children previously recommended by a national policy. Studies have focused on fertility preference among various groups of childbearing women, but knowledge of the issue among high-parity women needs to be further explored. Employing chi-square and binary logistic regression for analyses, the da

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24

George, M. V. "The Fertility Decline in India’s Kerala State: A Unique Example of Below Replacement Fertility in a High Fertility Country." Canadian Studies in Population 37, no. 3-4 (2010): 563. http://dx.doi.org/10.25336/p6x89j.

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This paper attempts to fill a gap in an updated study of the rapid fertility decline in Kerala, which has evoked world wide interest, using historical and recent data from direct and indirect sources. The three determinants of fertility decline – changes in age at marriage; the use of effective family planning methods as a result of the state’s aggressive family planning program; and the unique Kerala characteristics - have contributed to the fall in fertility. Additional insights are provided by comparing this with similar fertility decline in six countries of the region.

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Davies, Fred T., Chunajiu He, Amanda Chau, Kevin M. Heinz, and Andrew D. Cartmill. "Fertility Affects Susceptibility of Chrysanthemum to Cotton Aphids: Influence on Plant Growth, Photosynthesis, Ethylene Evolution, and Herbivore Abundance." Journal of the American Society for Horticultural Science 129, no. 3 (2004): 344–53. http://dx.doi.org/10.21273/jashs.129.3.0344.

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This research details the influence of fertility on plant growth, photosynthesis, ethylene evolution and herbivore abundance of chrysanthemum (Dendranthema grandiflora Tzvelev `Charm') inoculated with cotton aphids (Aphis gossypii Glover). We tested five fertility levels that consisted of 0%, 5%, 10%, 20%, and 100% (375 ppm N) of recommended nitrogen levels. Aphid abundance was greatest at high fertility. Fertility affected the vertical distribution of aphids. A higher population of aphids were observed in physiologically mature and older leaves at low fertility, whereas at high fertility youn

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Davies, Fred T., Chunajiu He, Amanda Chau, Kevin M. Heinz, and Andrew D. Cartmill. "Fertility Affects Susceptibility of Chrysanthemum to Cotton Aphids: Influence on Plant Growth, Photosynthesis, Ethylene Evolution, and Herbivore Abundance." Journal of the American Society for Horticultural Science 129, no. 3 (2004): 344–53. https://doi.org/10.21273/jashs.129.3.344.

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This research details the influence of fertility on plant growth, photosynthesis, ethylene evolution and herbivore abundance of chrysanthemum (Dendranthema grandiflora Tzvelev `Charm') inoculated with cotton aphids (Aphis gossypii Glover). We tested five fertility levels that consisted of 0%, 5%, 10%, 20%, and 100% (375 ppm N) of recommended nitrogen levels. Aphid abundance was greatest at high fertility. Fertility affected the vertical distribution of aphids. A higher population of aphids were observed in physiologically mature and older leaves at low fertility, whereas at high fertility youn

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Bras, Hilde. "Heterogeneity in ‘High Fertility’ Societies. Insights From Compositional Demography." Historical Life Course Studies 10 (March 31, 2021): 106–11. http://dx.doi.org/10.51964/hlcs9577.

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Demographic transition theory has been conducive to a rather dichotomous view of global fertility: traditional versus modern, high versus low fertility. The knowledge that high fertility could be achieved by subpopulations with different characteristics and reproductive behaviors somehow vanished from (historical) demographers' attention. This study unpacks heterogeneity in a 'high fertility' society, i.e. 19th-century Zeeland, the Netherlands. Sequence and cluster analysis were employed to distinguish groups with disparate reproductive trajectories with data from Genlias/LINKS including 15,01

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Tsala Dimbuene, Zacharie, Zemenu Tadesse Tessema, and Soziac Elise Wang Sonne. "High-risk fertility behaviours among women of reproductive ages in the Democratic Republic of the Congo: Prevalence, correlates, and spatial distribution." PLOS ONE 18, no. 3 (2023): e0283236. http://dx.doi.org/10.1371/journal.pone.0283236.

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Background High-risk fertility behaviour remains a major public health in the Democratic Republic of the Congo, like other sub-Saharan Africa countries, especially because Total Fertility Rate (TFR) is very high in the country, estimated at 6.6 children. Despite the commendable progress in reducing maternal deaths in the region, sub-Saharan Africa is still lagging very behind compared with other regions. Yet, high-risk fertility behaviours are pivotal to improve maternal and child health. This study aims to assess geographical variations of, and to identify risk factors associated with high-ri

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Vitzthum, V. J. "The home team advantage: reproduction in women indigenous to high altitude." Journal of Experimental Biology 204, no. 18 (2001): 3141–50. http://dx.doi.org/10.1242/jeb.204.18.3141.

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SUMMARY Although there is substantial evidence that environmental conditions disrupt reproductive function among newcomers to hypoxic settings, it is not certain that low oxygen pressure reduces fertility among those indigenous to high altitude. Even when fertility does appear to be relatively lower, numerous behavioral and sociocultural factors may be responsible. These are best examined within demographic frameworks that delineate a finite list of the proximate determinants of fertility. The findings presented here are based on several studies of indigenous Andean populations (Peruvian Quech

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Chen, Yan, Yi Chen, Zhipan Xiang, et al. "Transcriptomics Analysis on Fertility Conversion in Thermosensitive Geneticmale Sterility Line Zhu1S under High Temperature." Agronomy 12, no. 6 (2022): 1255. http://dx.doi.org/10.3390/agronomy12061255.

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Zhu1S is a thermosensitive genic male-sterile (TGMS) line of rice possessing outstanding combining ability and low critical temperature, which has been extensively utilized as a female parent in two-line hybrid ricebreeding. However, the fertility of Zhu 1S during hybrid seed production is frequently affected by high temperature, thus leading to its fertility alteration and aborted hybrid seed production. To understand its fertility conversion mechanism under high temperature, we employed transcriptomics analyses on the anthers of young panicles of Zhu 1S during the fertility alternation sensi

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Patel, MP, CF Chaudhari, TV Sutaria, et al. "Seminal characteristics and oxidative stress in high-fertility versus low-fertility Mehsana buffalo bulls." International Journal of Veterinary Sciences and Animal Husbandry 9, no. 2 (2024): 695–98. http://dx.doi.org/10.22271/veterinary.2024.v9.i2j.1312.

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Ashis, Kr. Mukherjee, and Laha Moumi. "IMPACT OF FEMALE LITERACY ON IMR, CBR & TFR IN INDIA." International Journal of Multidisciplinary Research and Modern Education 5, no. 1 (2019): 39–45. https://doi.org/10.5281/zenodo.2613818.

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Literacy and Education are the key variables for economic development. Education and better literacy level have a positive impact on the health parameters, higher productivity, higher income, human freedom, increased participation in community life etc. In India it has been found out that illiterate women face more deprivation in life than literates. They have high levels of fertility rate and also a high level of mortality rate. Different studies found out that infant mortality rate and crude birth rate are inversely related to mother’s educational level. In this Study We have attempted

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Langhammer, Martina, Marten Michaelis, Andreas Hoeflich, Alexander Sobczak, Jennifer Schoen, and Joachim M. Weitzel. "High-fertility phenotypes: two outbred mouse models exhibit substantially different molecular and physiological strategies warranting improved fertility." REPRODUCTION 147, no. 4 (2014): 427–33. http://dx.doi.org/10.1530/rep-13-0425.

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Animal models are valuable tools in fertility research. Worldwide, there are more than 400 transgenic or knockout mouse models available showing a reproductive phenotype; almost all of them exhibit an infertile or at least subfertile phenotype. By contrast, animal models revealing an improved fertility phenotype are barely described. This article summarizes data on two outbred mouse models exhibiting a ‘high-fertility’ phenotype. These mouse lines were generated via selection over a time period of more than 40 years and 161 generations. During this selection period, the number of offspring per

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Marques, Lis, Daniele Missio, Karine de Mattos, Francielli Weber Cibin, Fabio Gallas Leivas, and Daniela dos Santos Brum. "Correlation between in vitro sperm kinetic, oxidative stress assessments and field fertility of cryopreserved bull semen." Semina: Ciências Agrárias 44, no. 5 (2023): 1841–58. http://dx.doi.org/10.5433/1679-0359.2023v44n5p1841.

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This study assessed kinetic parameters and oxidative stress in bull sperm after post-thaw (PT) or after sperm selection by Percoll™ gradient, and thermo resistance test (SS + TRT) to identify useful indicators of field fertility. For the experiment, commercial doses of frozen semen were obtained from six Aberdeen Angus bulls. Three of the bulls were classified as high fertility and three as low fertility according to the IFert™ index provided by the international breeding company CRV Lagoa. Pooled semen samples were distributed between two treatment groups for analysis: post-thaw (PT) or sperm

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Dudel, Christian, and Sebastian Klüsener. "Male–Female Fertility Differentials Across 17 High-Income Countries: Insights From A New Data Resource." European Journal of Population 37, no. 2 (2021): 417–41. http://dx.doi.org/10.1007/s10680-020-09575-9.

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AbstractObtaining cross-country comparative perspectives on male fertility has long been difficult, as male fertility is usually less well registered than female fertility. Recent methodological advancements in imputing missing paternal ages at childbirth enable us to provide a new database on male fertility. This new resource covers more than 330 million live births and is based on a consistent and well-tested set of methods. These methods allow us to handle missing information on the paternal age, which is missing for roughly 10% of births. The data resource is made available in the Human Fe

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Ibrahim, Fausat Motunrayo. "Rethinking the African Value of High Fertility: The Yorùbá Farmers’ Example." Modern Africa: Politics, History and Society 8, no. 1 (2020): 11. http://dx.doi.org/10.26806/modafr.v8i1.308.

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African culture is implicated in the population dynamics of sub-Saharan Africa which is distinctly pro-fertile. However, there is a dearth of emic African demographic perspectives. In this light, the present article is a representation of demographic motivations of Yorùbá farmers’ who are largely rural residents and “more traditional” in orientation. Their articulations underscore themes cum bases of challenging the African value of high fertility, including the burdensome conceptualisation of high fertility; an appreciation of negative effects of high fertility on individuals and society; and

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ISLAM, SABINA, MOHAMMAD AMIRUL ISLAM, and SABU S. PADMADAS. "HIGH FERTILITY REGIONS IN BANGLADESH: A MARRIAGE COHORT ANALYSIS." Journal of Biosocial Science 42, no. 6 (2010): 705–19. http://dx.doi.org/10.1017/s0021932010000428.

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SummaryBangladesh represents one of the few countries in south Asia where the pace of fertility decline has been unprecedented over the last three decades. Although there has been significant reduction in fertility levels at the national level, regional variations continue to persist, especially in Sylhet and Chittagong where the total fertility rates are well above the country average. Using data from three consecutive Bangladesh Demographic and Health Surveys (BDHSs) this paper assesses how fertility patterns in Sylhet and Chittagong differ from the rest of Bangladesh through a marriage coho

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Asmamaw, Desale Bihonegn, Wubshet Debebe Negash, Fantu Mamo Aragaw, et al. "Spatial distribution, magnitude, and predictors of high fertility status among reproductive age women in Ethiopia: Further analysis of 2016 Ethiopia Demographic and Health Survey." PLOS ONE 18, no. 9 (2023): e0290960. http://dx.doi.org/10.1371/journal.pone.0290960.

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Background Women’s health and welfare, as well as the survival of their children, are adversely affected by high fertility rates in developing countries. The fertility rate in Ethiopia has been high for a long time, with some pockets still showing poor improvement. Thus, the current study is aimed to assess the spatial distribution and its predictors of high fertility status in Ethiopia. Methods Secondary data analysis was used using the 2016 Ethiopian Demographic and Health Survey (EDHS). The Bernoulli model was used by applying Kulldorff methods using the SaTScan software to analyze the pure

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Rahman, Mosiur, Md Jahirul Islam, Syed Emdadul Haque, et al. "Association between high-risk fertility behaviours and the likelihood of chronic undernutrition and anaemia among married Bangladeshi women of reproductive age." Public Health Nutrition 20, no. 2 (2016): 305–14. http://dx.doi.org/10.1017/s136898001600224x.

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AbstractObjectiveTo explore the association between high-risk fertility behaviours and the likelihood of chronic undernutrition, anaemia and the coexistence of anaemia and undernutrition among women of reproductive age.DesignThe 2011 Bangladesh Demographic and Health Survey, conducted from 8 July to 27 December 2011.SettingSelected urban and rural areas of Bangladesh.SubjectsA total of 2197 ever-married women living with at least one child younger than 5 years. Exposure was determined from maternal reports of high-risk fertility behaviours. We considered three parameters, maternal age at the t

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Wang, Mengmeng, Jiubo Pei, Yaxi Yu, and Siyin Wang. "Residual Carbon Derived from Different Maize Parts Differed in Soil Organic Carbon Fractions as Affected by Soil Fertility." Agronomy 13, no. 4 (2023): 1121. http://dx.doi.org/10.3390/agronomy13041121.

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Maize straw returning is one of the important measures to improve dryland soil organic carbon (SOC). However, the effects of different maize parts on SOC fractions with different soil fertility levels in situ are not exactly clear. Therefore, an in situ field incubation experiment over 540 days, by adding different 13C-labeled maize parts (root, stem and leaf) into low- (no fertilizer treatment) and high- (manure treatment) fertility soils, was conducted at a long-term brown earth experimental site in Shenyang of China to figure out the effects of different maize parts on SOC fractions (dissol

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Tomilová, Marina, and Kristýna Frühaufová. "Female fertility preservation in cancer patients." Česká gynekologie 87, no. 5 (2022): 356–61. http://dx.doi.org/10.48095/cccg2022356.

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Fertility preservation in cancer patients or oncofertility is a relatively new trend in modern medicine. In patients with unfulfilled reproductive plans, the possibility of starting a family is one of the key parameters of quality of life after overcoming a cancer. Guidelines have existed since 2013 and in 2020 the European Society of Human Reproduction and Embryology has also published a guideline, but the main problem of their application in clinical practice is the lack of information for both patients and, unfortunately, professionals, as well as the high cost of treatment. From 2022, heal

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Johnny, Dudafa Undutimi, Ekainsai Zion Stephen, and Titus Toinpre Charles. "High Fertility Rates and Global Population Growth: Implications for Sustainable Development in Bayelsa State, Nigeria." International Journal of Research 12, no. 3 (2025): 760–79. https://doi.org/10.5281/zenodo.15233706.

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This study examines the socio-cultural and economic factors driving high fertility rates in Bayelsa State in Nigeria and assesses their implications for socio-economic development, including education, employment, and healthcare. A quantitative research design was adopted, gathering data from 400 respondents via a structured questionnaire administered using stratified random sampling. Analysis using descriptive statistics and regression techniques revealed that cultural beliefs, economic conditions, religious influences and early marriage are significant determinants of high fertility. Notably

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Dudafa, Undutimi Johnny, Zion Stephen Ekainsai, and Toinpre Charles Titus. "High Fertility Rates and Global Population Growth: Implications for Sustainable Development in Bayelsa State, Nigeria." International Journal of Research 12, no. 3 (2025): 410–27. https://doi.org/10.5281/zenodo.15123195.

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This study examines the socio-cultural and economic factors driving high fertility rates in Bayelsa State in Nigeria and assesses their implications for socio-economic development, including education, employment, and healthcare. A quantitative research design was adopted, gathering data from 400 respondents via a structured questionnaire administered using stratified random sampling. Analysis using descriptive statistics and regression techniques revealed that cultural beliefs, economic conditions, religious influences and early marriage are significant determinants of high fertility. Notably

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Hopcroft, Rosemary L. "IS FERTILITY AFTER THE DEMOGRAPHIC TRANSITION MALADAPTIVE?" Journal of Biosocial Science 51, no. 2 (2018): 157–76. http://dx.doi.org/10.1017/s0021932018000032.

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SummaryFitness is always relative to the fitness of others in the group or breeding population. Even in very low-fertility societies, individual fitness as measured by the share of genes in subsequent generations may still be maximized. Further, sexual selection theory from evolutionary biology suggests that the relationship between status and fertility will differ for males and females. For this reason it is important to examine the relationship between status and fertility separately for males and females–something few demographic studies of fertility do. When male fertility is measured sepa

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Bohn, Henning, and Armando R. Lopez-Velasco. "IMMIGRATION AND DEMOGRAPHICS: CAN HIGH IMMIGRANT FERTILITY EXPLAIN VOTER SUPPORT FOR IMMIGRATION?" Macroeconomic Dynamics 23, no. 5 (2017): 1815–37. http://dx.doi.org/10.1017/s1365100517000463.

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First generation immigrants to the United States have higher fertility rates than natives. This paper analyzes to what extent this factor provides political support for immigration, using an overlapping generation model with production and capital accumulation. In this setting, immigration represents a dynamic trade-off for native workers as more immigrants decrease current wages but increase the future return on their savings. We find that immigrant fertility has surprisingly strong effects on voter incentives, especially when there is persistence in the political process. If fertility rates

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Montri, Adam, and J. A. Biernbaum. "Management of the Soil Environment in High Tunnels." HortTechnology 19, no. 1 (2009): 34–36. http://dx.doi.org/10.21273/hortsci.19.1.34.

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High-tunnel soil, water, and fertility management can be achieved using a wide range of approaches from polyethylene film-mulched, drip-fertigated beds to certified organic management based on maintaining high soil organic matter (SOM) content. Soil management techniques are discussed in relation to the high tunnel structure used and the length of the growing season, site preparation, soil health, SOM, irrigation water quality, and fertility, with a focus on certified organic management.

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Montri, Adam, and J. A. Biernbaum. "Management of the Soil Environment in High Tunnels." HortTechnology 19, no. 1 (2009): 34–36. http://dx.doi.org/10.21273/horttech.19.1.34.

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High-tunnel soil, water, and fertility management can be achieved using a wide range of approaches from polyethylene film-mulched, drip-fertigated beds to certified organic management based on maintaining high soil organic matter (SOM) content. Soil management techniques are discussed in relation to the high tunnel structure used and the length of the growing season, site preparation, soil health, SOM, irrigation water quality, and fertility, with a focus on certified organic management.

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Sunmola, Adebayo K., Johnson S. Olaosebikan, and Temitope J. Adeusi. "High fertility level in Sub-Saharan Africa: implication for reaping and optimizing demographic dividend." International Journal Of Community Medicine And Public Health 7, no. 9 (2020): 3698. http://dx.doi.org/10.18203/2394-6040.ijcmph20203947.

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Africa region remains the continent with the highest total fertility rate among other major regions of the world such as Europe, North America, Asia and Latin America and Oceania. This paper examines the determinants of high fertility in sub-Saharan Africa; it also determines the policy implication for reaping and optimizing demographic dividend. Secondary data sources were employed in achieving the set objectives. This paper submitted that determinants such as age at first marriage; high child mortality; low female education; gender preference; and limited birth spacing were the determinants

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Hailemariam, Assefa. "Fertility levels and trends in Arsi and Shoa regions of Central Ethiopia." Journal of Biosocial Science 23, no. 4 (1991): 387–400. http://dx.doi.org/10.1017/s0021932000019490.

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SummaryLevels and trends of fertility in the Arsi and Shoa regions of Central Ethiopia are examined, using data from the 1986 Population, Health and Nutrition baseline survey of the Ministry of Health of Ethiopia. The population has high fertility. Total fertility of six children per woman in the late 1960s increased to eight children per woman in the early 1980s, then declined to seven children per woman in the mid-1980s. Urban fertility declined by a substantial amount during the 15 years before the survey while rural fertility increased during the same period.The implications of high fertil

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Rodrigo-Comino, Jesus, Gianluca Egidi, Luca Salvati, Giovanni Quaranta, Rosanna Salvia, and Antonio Gimenez-Morera. "High-to-Low (Regional) Fertility Transitions in a Peripheral European Country: The Contribution of Exploratory Time Series Analysis." Data 6, no. 2 (2021): 19. http://dx.doi.org/10.3390/data6020019.

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Diachronic variations in demographic rates have frequently reflected social transformations and a (more or less evident) impact of sequential economic downturns. By assessing changes over time in Total Fertility Rate (TFR) at the regional scale in Italy, our study investigates the long-term transition (1952–2019) characteristic of Mediterranean fertility, showing a continuous decline of births since the late 1970s and marked disparities between high- and low-fertility regions along the latitude gradient. Together with a rapid decline in the country TFR, the spatiotemporal evolution of regional

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