Academic literature on the topic 'Reproductive phases'

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Journal articles on the topic "Reproductive phases"

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Chandra, Vikram, Ingrid Fetter-Pruneda, Peter R. Oxley, Amelia L. Ritger, Sean K. McKenzie, Romain Libbrecht, and Daniel J. C. Kronauer. "Social regulation of insulin signaling and the evolution of eusociality in ants." Science 361, no. 6400 (July 26, 2018): 398–402. http://dx.doi.org/10.1126/science.aar5723.

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Queens and workers of eusocial Hymenoptera are considered homologous to the reproductive and brood care phases of an ancestral subsocial life cycle. However, the molecular mechanisms underlying the evolution of reproductive division of labor remain obscure. Using a brain transcriptomics screen, we identified a single gene,insulin-like peptide 2(ilp2), which is always up-regulated in ant reproductives, likely because they are better nourished than their nonreproductive nestmates. In clonal raider ants (Ooceraea biroi), larval signals inhibit adult reproduction by suppressingilp2, thus producing a colony reproductive cycle reminiscent of ancestral subsociality. However, increasing ILP2 peptide levels overrides larval suppression, thereby breaking the colony cycle and inducing a stable division of labor. These findings suggest a simple model for the origin of ant eusociality via nutritionally determined reproductive asymmetries potentially amplified by larval signals.
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BARBO, DOROTHY M. "Reproductive Health Over the Life Phases: An Overview." Clinical Obstetrics and Gynecology 45, no. 4 (December 2002): 1181–88. http://dx.doi.org/10.1097/00003081-200212000-00024.

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Zadrag-Tecza, Renata, Magdalena Kwolek-Mirek, Małgorzata Alabrudzińska, and Adrianna Skoneczna. "Cell Size Influences the Reproductive Potential and Total Lifespan of theSaccharomyces cerevisiaeYeast as Revealed by the Analysis of Polyploid Strains." Oxidative Medicine and Cellular Longevity 2018 (2018): 1–17. http://dx.doi.org/10.1155/2018/1898421.

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The total lifespan of the yeastSaccharomyces cerevisiaemay be divided into two phases: the reproductive phase, during which the cell undergoes mitosis cycles to produce successive buds, and the postreproductive phase, which extends from the last division to cell death. These phases may be regulated by a common mechanism or by distinct ones. In this paper, we proposed a more comprehensive approach to reveal the mechanisms that regulate both reproductive potential and total lifespan in cell size context. Our study was based on yeast cells, whose size was determined by increased genome copy number, ranging from haploid to tetraploid. Such experiments enabled us to test the hypertrophy hypothesis, which postulates that excessive size achieved by the cell—the hypertrophy state—is the reason preventing the cell from further proliferation. This hypothesis defines the reproductive potential value as the difference between the maximal size that a cell can reach and the threshold value, which allows a cell to undergo its first cell cycle and the rate of the cell size to increase per generation. Here, we showed that cell size has an important impact on not only the reproductive potential but also the total lifespan of this cell. Moreover, the maximal cell size value, which limits its reproduction capacity, can be regulated by different factors and differs depending on the strain ploidy. The achievement of excessive size by the cell (hypertrophic state) may lead to two distinct phenomena: the cessation of reproduction without “mother” cell death and the cessation of reproduction with cell death by bursting, which has not been shown before.
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Sinclair, A. R. E., Dennis Chitty, Carol I. Stefan, and Charles J. Krebs. "Mammal population cycles: evidence for intrinsic differences during snowshoe hare cycles." Canadian Journal of Zoology 81, no. 2 (February 1, 2003): 216–20. http://dx.doi.org/10.1139/z03-006.

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Some mammals in high northern latitudes show regular population cycles. In snowshoe hares (Lepus americanus), these occur every 9–10 years. One hypothesis proposes extrinsic causes such as food shortage or predation. The other proposes intrinsic causes through different morphs that alternate between different phases of the cycle. The morphs should differ in behaviour or physiology. This hypothesis predicts that animal lineages bred from high and low phases of the population cycle should differ in reproduction and survivorship. In a 16-year breeding program, lineages of purebred high-phase female hares had reduced reproductive rates relative to those of purebred low-phase females, resulting in extinction of high-phase lineages. Reproductive output declined with age in high- but not low-phase animals. These lineages also differed in longevity and senescence. These results are consistent with the intrinsic hypothesis and suggest a mechanism for alternating population densities that could work synergistically with extrinsic causes like predation and food shortage.
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Mazzoni, Talita Sarah, Robie Allan Bombardelli, and Irani Quagio-Grassiotto. "Reproductive Biology of Neotropical Fishes: A Guide to Identification to the Gonadal Morphology During the Reproductive Cycle of Catfish Rhamdia quelen (Siluriformes: Heptapteridae)." Aquatic Science and Technology 8, no. 2 (June 29, 2020): 15. http://dx.doi.org/10.5296/ast.v8i2.17102.

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In most Teleostei fish, the gametogenesis is a cyclical and seasonal event. The renewal of gametes, through their differentiation, development, maturation and release causes several changes in the morphological characteristics of the ovaries and testes throughout the annual reproductive cycles. These alterations are used to recognize different phases in the reproductive cycles. However, as the number of studies of fish reproduction increased, the number of types of gonadal classification and nomenclatures also diversified. This may make it difficult to communication between researchers and the aquaculture activity, since the recognition of these phases is one of the most important parameters applied in the management of fishery resources. In addition, the terminologies proposed in most of the current studies refer to reproductive stages applicable to marine fish, with marked and defined seasonality characteristics. In this way, this report presents a recent proposal for the recognition of reproductive phases originally developed for the Perciformes and here adapted for the Neotropical Siluriformes, using as a biological model a freshwater catfish Rhamdia quelen. In addition, we describe a brief characterization of the gametogenesis in this species. We hope that the material presented can be used as an easy and practical guide of identification for reproductive phases applicable to other neotropical freshwater fish, more especially Otophysi, such as Siluriformes.
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Christopher, Dorothy A., Randall J. Mitchell, and Jeffrey D. Karron. "Pollination intensity and paternity in flowering plants." Annals of Botany 125, no. 1 (October 5, 2019): 1–9. http://dx.doi.org/10.1093/aob/mcz159.

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Abstract Background Siring success plays a key role in plant evolution and reproductive ecology, and variation among individuals creates an opportunity for selection to act. Differences in male reproductive success can be caused by processes that occur during two stages, the pollination and post-pollination phases of reproduction. In the pollination phase, heritable variation in floral traits and floral display affect pollinator visitation patterns, which in turn affect variation among plants in the amount of pollen exported and deposited on recipient stigmas. In the post-pollination phase, differences among individuals in pollen grain germination success and pollen tube growth may cause realized paternity to differ from patterns of pollen receipt. The maternal plant can also preferentially provision some developing seeds or fruits to further alter variation in siring success. Scope In this review, we describe studies that advance our understanding of the dynamics of the pollination and post-pollination phases, focusing on how variation in male fitness changes in response to pollen limitation. We then explore the interplay between pollination and post-pollination success, and how these processes respond to ecological factors such as pollination intensity. We also identify pressing questions at the intersection of pollination and paternity and describe novel experimental approaches to elucidate the relative importance of pollination and post-pollination factors in determining male reproductive success. Conclusions The relative contribution of pollination and post-pollination processes to variation in male reproductive success may not be constant, but rather may vary with pollination intensity. Studies that quantify the effects of pollination and post-pollination phases in concert will be especially valuable as they will enable researchers to more fully understand the ecological conditions influencing male reproductive success.
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Millesi, Eva, Anna Strauss, Tamara Burger, Ilse E. Hoffmann, and Manfred Walzl. "Follicular development in European ground squirrels (Spermophilus citellus) in different phases of the annual cycle." REPRODUCTION 136, no. 2 (August 2008): 205–10. http://dx.doi.org/10.1530/rep-08-0090.

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In seasonally breeding mammals, in particular hibernators, reproduction underlies severe energetic and temporal constraints to enable the allocation of sufficient body fat reserves before winter. Thus, the timing of conception in spring can be crucial in terms of reproductive success. This study investigates follicular development in European ground squirrels (Spermophilus citellus) in three phases of the annual cycle: at vernal emergence, after weaning the offspring and shortly before hibernation. The animals were kept in outdoor enclosures within the natural habitat of the species. They were captured in weekly intervals, weighed and reproductive status was determined. Unilateral ovariectomy was scheduled such that the three periods were sampled. Numbers and diameters of tertiary follicles (TF) and corpora lutea (CL) in each ovary were determined, and plasma oestradiol and progesterone levels were analysed. The highest numbers of TF, including Graafian follicles, were found in ovaries at vernal emergence. During post-lactation, the number of TF was lower and active CL appeared in the investigated ovaries. Shortly before hibernation, active CL were present, but luteolysis had started in some individuals. Both oestradiol and progesterone secretion peaked after the termination of lactation and decreased before hibernation. The results demonstrate a second oestrus cycle in European ground squirrels after weaning, including an active luteal phase. This non-reproductive oestrus cycle with its endocrine output is an intriguing phenomenon. It may positively affect both prehibernatory fattening and reproduction in the subsequent season.
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Nunes-Silva, Patrícia, Sergio Dias Hilário, Pérsio de Souza Santos Filho, and Vera Lucia Imperatriz-Fonseca. "Foraging Activity inPlebeia remota, a Stingless Bees Species, Is Influenced by the Reproductive State of a Colony." Psyche: A Journal of Entomology 2010 (2010): 1–16. http://dx.doi.org/10.1155/2010/241204.

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Colonies of the Brazilian stingless beePlebeia remotashow a reproductive diapause in autumn and winter. Therefore, they present two distinct reproductive states, during which colony needs are putatively different. Consequently, foraging should be adapted to the different needs. We recorded the foraging activity of two colonies for 30 days in both phases. Indeed, it presented different patterns during the two phases. In the reproductive diapause, the resource predominantly collected by the foragers was nectar. The majority of the bees were nectar foragers, and the peak of collecting activity occurred around noon. Instead, in the reproductive phase, the predominantly collected resource was pollen, and the peak of activity occurred around 10:00 am. Although the majority of the foragers were not specialized in this phase, there were a larger number of pollen foragers compared to the phase of reproductive diapause. The temperature and relative humidity also influenced the foraging activity.
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Stief, C. G. "Mecanismes des phases de l’erection." Andrologie 2, no. 1 (October 1992): 28–29. http://dx.doi.org/10.1007/bf03034592.

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Norris, Richard D., Richard M. Corfield, and Julie Cartlidge. "What is gradualism? Cryptic speciation in globorotaliid foraminifera." Paleobiology 22, no. 3 (1996): 386–405. http://dx.doi.org/10.1017/s0094837300016341.

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Analysis of the evolution of the Globorotalia (Fohsella) lineage of planktic foraminifera suggests that reproductive ecology and shell shape have evolved independently in this group. The silhouette of fohsellid shells displays a nearly unbroken anagenetic trend, yet isotopic data show that the fohsellids changed their depth of reproduction during the anagenetic evolution of their skeletons. Remarkably, there are no correlations between anagenesis in skeletal shape and the establishment of reproductive isolation. Apparently, anagenesis masks at least one speciation event that is apparent only in the isotopic evidence for a change in reproductive ecology. Although anagenetic trends have been widely cited as evidence for gradual speciation in planktic foraminifera and other microfossil groups, our data suggest that they should not always be considered to record either the tempo or mode of speciation.Speciation was apparently uncoupled from morphological evolution in fohsellids because these evolutionary phenomena occurred in different phases of ontogeny. Gradual morphological changes were associated with the main phase of shell growth of both the ancestor and descendant species in the near-surface ocean. Reproductive isolation occurred when ancestral and descendant populations became established at different depths near the end of the life cycle. Morphological evolution may also be uncoupled from reproductive isolation in other organisms that experience very different selection pressures over the duration of their ontogenies, such as parasites with many hosts, species with multiple phases of metamorphosis, and organisms that broadcast their gametes.
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Dissertations / Theses on the topic "Reproductive phases"

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Barber, Henry Mark. "Identifying beneficial traits for heat stress around reproductive phases of growth in wheat." Thesis, University of Reading, 2017. http://centaur.reading.ac.uk/75741/.

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There is a need for heat tolerant traits in wheat to be identified in order to maintain and increase yields in future climates. The aim of this project was to assess genotypic variation in crop response to heat stress by comparing a southern European wheat genotype (Renesansa; Rht-D1a, Rht8, Ppd-D1a) with a UK genotype (Savannah; RhtD1b, Ppd-D1b, 1BL/1RS) and their doubled haploid progeny. This would allow for the identification of traits and alleles that would benefit UK and European wheat production under climate change scenarios through the use of a combination of phenotyping, genotyping and crop modelling. Heat stress experiments were conducted in controlled environments to identify the most susceptible growth stages to heat stress within the population and to identify potentially tolerant traits. An appraisal of the crop model SIRIUS and how it simulates heat stress was undertaken. Finally, a field trial was conducted to identify which traits perform well in UK field conditions. Two periods of susceptibility in Savannah and Renesansa were identified as susceptible to heat stress, through reductions in grain number. The first period was identified around booting, with the second being identified one day before mid anthesis. The period around heading was found to be relatively tolerant. Compensation of reduced grain numbers through increases in grain size was limited and variable. Rht8 was not found to influence heat stress tolerance. The photoperiod insensitivity allele Ppd-D1a was found to increase susceptibility to heat stress, while the semi dwarfing allele Rht-D1b was found to confer tolerance to it. Rht8 was associated with reduced yield in UK field conditions. Simulations from SIRIUS suggest that yield loss due to heat stress could increase by three fold in central Europe by 2090, though it is not expected to be a major issue in the UK.
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Jackson, Barbara Ann, and n/a. "A study of baby boomer women and their expectations of menopause." University of Canberra. Professional & Community Education, 1996. http://erl.canberra.edu.au./public/adt-AUC20060801.142823.

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This is a study of a generation of women who are about to enter the climacteric period of their life, the menopause. Born between the years 1946 and 1956 they have been the object of continuous scrutiny by various interest groups. Because they are seen to be unique, many acronyms and titles, the most noted being the 'Baby Boomers' have been attached to them. The women of this generation have been classed as a Very active' generation, leaving a clear mark on society and the re-emerging women's movement. As they near menopause they are approaching a stage that could be seen as their last reproductive transition. For many women there is no cultural ritual, nor a single story to guide them through this period They are however not without advice. The 'big voices' of the drug companies, the medical system and the media, all tender their guidance as the dominant voice. These women have been told what to do by experts throughout their whole lives. It seems 'expert advice' on their reproductive phases have been penned mostly by men in the interests of treating, controlling and saving them. Control of their body remains a key struggle, both physically and linguistically. The purpose of the research was to study the expectations of this post-war, Baby Boom generation of menopause. The study shows that some women have made decisions to embrace non-medical help and accept menopause as an inevitable transition, while others are willing to consider medical help to enhance their 'quality of life '. Believing it is time to look after themselves, it seems many women will take a pragmatic view and accept medical opinion that the menopause is a deficiency disease, even if this requires them to become part of the consumer driven/drug company push for a 'symptom free' menopause. They wish to remain untroubled and express a willingness to do whatever they need to fulfil this. Their fervent hope is that the menopause will not upset their career, family or 'life'. Consequently a large majority of these women will think about or actively pursue hormone replacement therapy.
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Bolmgren, Kjell. "Adaptation and Constraint in the Plant Reproductive Phase." Doctoral thesis, Stockholm : Botaniska institutionen, Univ, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-99.

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Alghrani, Amel. "Human reproduction : regulating the third phase." Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.495743.

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Human reproduction has been aptly split into three distinct eras. The first of these is when sexual intercourse results in conception, followed by pregnancy and childbirth. The second era of human reproduction occurs via in vitro fertilisation (IVF), whereby the foetus is fertilised outside the woman, but is later implanted into a female host where it is gestated until birth. In the third phase, the foetus is fertilised and gestated entirely in vitro, outside the female host and in an artificial womb/incubator (ectogenesis). Reproductive technologies are marked by the rapidity in which they develop, and as the reproductive revolution shows no sign of relenting, science may be about to propel us into this third wave of reproduction.
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Herman, Bram. "The phase change from vegetative to reproductive growth in Agaricus bisporus." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/3152/.

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The phase change from vegetative to reproductive growth in Agaricus bisporus is a complex process involving changes in morphology at least in part regulated genetically and influenced by various environmental signals. This work was aimed at understanding how the morphology changes, and the specific environmental parameters are involved, and which genes show changes in transcription during the phase change process in A. bisporus. Different resources and methodologies were developed and applied to investigate this process including digital time-lapse photography, genome database assembly, design, validation and normalisation of a custom oligonucleotide gene expression microarray and analysis of microarray-generated gene expression profiles showing the response of this fungus under stimulatory and non-stimulatory environmental conditions. Key stages that occur during reproductive differentiation and development were identified and defined. It was found that temperature and the mushroom volatile, 1-octen-3-ol, act as an on/off switches as they block specific stages of the phase change while carbon dioxide acts as a quantitative regulator as high amounts of this molecule reduce the number of primordia and fruit bodies that develop. Gene expression profiles were constructed showing the changes in gene expression in peat-based A. bisporus samples, grown under commercial cultivation conditions which were designed to stimulate reproductive growth, and experimental cultivation conditions which were designed to separate out the effects of the three environmental parameters mentioned previously. It was found that 52 genes were differentially expressed in A. bisporus during the phase change from vegetative mycelium into fruit body primordia. A comparison with the gene expression profiles constructed for the experimental growth conditions, in correlation with morphological observations enabled the separation of these 52 genes into 3 clusters. One cluster contained 4 genes that are likely to be involved in the regulation of the “early” phase change, a second cluster contained 11 genes that are likely to be involved in the regulation of the “late” phase change and the third cluster contained 37 genes that are likely to be involved with physiological processes supporting the phase change.
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Schori, Arnold. "Contribution à l'amélioration génétique du soja [Glycine max (L.) Merr.] pour la tolérance au froid en phase reproductive /." [S.l.] : [s.n.], 1994. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10729.

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Bahougne, Thibault. "Perturbation de la rythmicité circadienne : impact sur la fonction reproductive de souris femelles." Thesis, Strasbourg, 2020. http://www.theses.fr/2020STRAJ001.

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Chez les mammifères femelles, la fonction reproductive dépend à la fois d’une horloge biologique synchronisée par le cycle lumière/obscurité et par un équilibre entre le rétrocontrôle négatif et positif des œstrogènes, dont les concentrations varient en fonction de la maturation folliculaire. Chez les femmes, un nombre croissant d’études signalent un impact négatif des environnements chronodisruptifs, comme le travail posté / de nuit, sur la fertilité. Les objectifs de mon travail étaient d’étudier les effets d’un décalage de phase unique ou chronique sur les cycles reproducteurs de souris (C57BL/6J) femelles adultes. Dans ce but j’ai 1) mis au point un modèle de suivi longitudinal (sur plusieurs mois) de la sécrétion de LH le jour du proestrus sur des individus uniques ; 2) analysé les effets d’une avance ou d’un retard de phase unique (10h) sur les cycles estriens et l’occurrence du pic préovulatoire de LH ; 3) analysé les effets d’avance/retard de phases chroniques (jusqu’à 9 mois) sur les cycles estriens, le pic préovulatoire de LH et la fertilité ; 4) mis au point d’injection intra-cérébro-ventriculaire (ICV) de peptides associée au suivi individuel de LH afin de proposer des méthodes de resynchronisation du pic préovulatoire de LH chez des souris soumises à des déphasages. Mes travaux montrent qu’une avance ou un retard de phase unique perturbe peu le cycle reproducteur des souris femelles jeunes tandis qu’un décalage chronique altère fortement à la fois la régularité des cycles estriens, la sécrétion préovulatoire de LH et la fertilité. Ces données fondamentales démontrent un impact négatif de la perturbation chronique des cycles journaliers sur l'axe reproducteur des souris femelles. Une extrapolation de nos données fondamentales chez la femme, notamment dans un contexte de travail posté, est à l’heure actuelle prématurée. Cependant, au vu de nos résultats, une étude prospective chez la femme est indispensable
In female mammals, cycles in reproductive function depend on both a biological clock synchronized to the light/dark cycle, and a balance between the negative and positive feedbacks of estradiol which concentration varies during ovary maturation. In women, studies report that chronodisruptive environments, notably those experienced in shiftwork conditions, may impair fertility and gestational success. The objective of this study was to explore, in female mice, the effects of shifted light/dark cycles on both the robustness of the estrous cycles and the timing of the preovulatory luteinizing hormone (LH) surge, two hallmarks of mammalian reproductive health. When mice were exposed to a single 10 h-phase advance or 10 h-phase delay, the occurrence and timing of the LH surge and estrous cyclicity were recovered at the third estrous cycle. By contrast, when mice were exposed to a chronic shift (successive rotations of 10 h-phase advance for 3 days followed by 10 h-phase delay for 4 days), they exhibited a severely impaired reproductive activity. Most mice had no preovulatory LH surge already at the beginning of the chronic shift. Furthermore, the gestational success of mice exposed to a chronic shift was reduced since the number of pups was two times lower in shifted as compared to control mice. In conclusion, this study reports that female mice exposure to a single-phase shift has minor reproductive effects whereas exposure to chronically disrupted light/dark cycles markedly impairs the preovulatory LH surge occurrence, leading to reduced fertility
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Tasende, Celia. "Pituitary and uterine sex steriod receptors in ewes : seasonal and postpartum anoestrus, oestrous cycle and experimentally induced subnormal luteal phases /." Uppsala : Dept. of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200597.pdf.

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Richerd, Sophie. "Evolution de l'alternance de phases haploide et diploide dans les cycles de reproduction : aspects theoriques et experimentaux chez l'algue rouge gracilaria verrucosa." Paris 6, 1993. http://www.theses.fr/1993PA066222.

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La reproduction sexuee, par l'alternance de meiose et de fecondation, a pour consequence une alternance de phases haploide et diploide au cours du cycle sexue des eucaryotes. Le probleme aborde dans cette these est de comprendre quels sont les facteurs qui determinent l'importance relative de ces deux phases dans les cycles de reproduction. L'analyse de la distribution des cycles haploide, diploide, et haplo-diploide chez l'ensemble des eucaryotes, puis plus particulierement chez les algues, permet de degager des tendances evolutives repetees vers la diploidie et de reveler une importante variabilite pour ce caractere dans certains groupes. L'approche theorique est centree sur l'expression des mutations deleteres chez les individus haploides et diploides, et permet d'apporter des reponses aux questions de l'evolution de l'haploidie vers la diploidie et du maintien du cycle haplo-diploide. La partie experimentale concerne la biologie des populations d'une algue rouge haplo-diploide isomorphe, gracilaria verrucosa, et nous permet de tester les predictions des hypotheses et modeles sur l'evolution des cycles. Elle comprend la comparaison des individus isomorphes haploides et diploides en differentes conditions, l'etude d'individus presentant des variations du cycle, et l'estimation des consequences du cycle haplo-diploide sur le fonctionnement genetique des populations
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Schülke, Oliver. "Living apart together - patterns, ecological basis and reproductive consequences of life in dispersed pairs of fork marked lemurs (Phaner furcifer, Primates)." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=967765897.

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Books on the topic "Reproductive phases"

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Assisted reproductive technologies in the third phase: Global encounters and emerging moral worlds. New York: Berghahn Books, 2015.

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Cell, India Apex Resource. Training of trainers (TOT): Manual for MNGOs : Reproductive & Child Health Programme Phase II. New Delhi: Apex Resource Cell, NGO Division, Ministry of Health and Family Welfare, Govt. of India, 2005.

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Cell, India Apex Resource. Handbook for field NGOs: An almanac for managers, supervisors, and field workers : Reproductive and Child Health Programme Phase II. New Delhi: Apex Resource Cell, NGO Division, Ministry of Health and Family Welfare, Govt. of India, 2007.

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Fischer, Audrey. Library of Congress Optical Disk Pilot Program Print Project document preparation and input report: Phase II, January 1986-September 1987. [Washington, D.C.]: The Library, 1987.

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Fischer, Audrey. Library of Congress Optical Disk Pilot Program, Optical Disk Print Pilot Project: Print project document preparation and input report, phase I, September 1984-December 1985. [Washington, D.C.]: The Library, 1986.

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Heiman, Noa, Abby Snavely, and Liza Freehling. Women’s Mental Health Across the Reproductive Lifespan. Edited by Robert E. Feinstein, Joseph V. Connelly, and Marilyn S. Feinstein. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190276201.003.0020.

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This chapter focuses on the unique properties of women’s mental health, which need to be understood and managed throughout the reproductive lifespan in a collaborative health care environment. Throughout her reproductive life cycle, a woman will experience enormous endocrinologic changes. During transitional times, such as pregnancy, postpartum, and perimenopause/menopause, mental health problems may peak for some women. For example, a history of depression at any time increases the risk for depression during times of reproductive hormone fluctuation. Psychiatric hospital admissions are highest for women during pregnancy and postpartum. The collaborative care team must always be aware of the hormonal life phase of the woman they are treating and her biological, psychological, and social context. Premenstrual, pregnancy, postpartum, perimenopausal, and menopausal phases are reviewed in light of their interplay with mental health. Recommendations for integrative team care at each phase are given.
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Patna University. Population Research Centre., India. Ministry of Health and Family Welfare., and International Institute for Population Sciences., eds. Rapid household survey--RCH Project, Bihar, [name of district]: [Phase I and II, 1998-1999]. Patna: Population Research Centre, Dept. of Statistics, Patna University, 1998.

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Mills, M. G. L., and M. E. J. Mills. Energetics. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198712145.003.0008.

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Measurements of daily energy expenditure and water turnover showed that energy expenditure in cheetahs was not significantly greater than expected, but water turnover was low. There were no sex differences in daily energy expenditure, but when hunting along riverbeds cheetahs used more energy than when hunting in the dunes, probably because they moved further in the riverbeds. There were no differences in daily energy expenditure between females in different stages of reproduction. Energy expended chasing prey differed; small prey being least costly and large species most costly. Analyses of prey chases using both GPS and accelerometer loggers revealed that there were two phases; an initial rapid acceleration to catch up with the prey, followed by a slowing phase as cheetahs followed twists and turns of the prey as the distance between them closed. A visualization of five phases recorded from accelerometer data during a successful steenbok hunt is presented.
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Male responsibility in reproductive health: The construction of manhood in Nigeria : Phase I. University College Hospital, Ibadan, 1999.

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Social Science and Reproductive Health Research Network (Ibadan, Nigeria)., ed. Male responsibility in reproductive health: The construction of manhood in Nigeria : phase I. Ibadan, Nigeria: The Social Science and Reproductive Health Research Network, 1999.

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Book chapters on the topic "Reproductive phases"

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Piles, Miriam, Maria Antonia Santacreu, Agustin Blasco, and Jun Pablo Sanchez. "Genetics of reproduction in the rabbit." In The genetics and genomics of the rabbit, 212–33. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781780643342.0012.

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Abstract This chapter describes the genetic determinism of all traits involved in male and female reproductive performances in rabbits. All traits related to the underlying biological processes leading to the mating outcome, as well as some of its general features, such as the homogeneity of the reproductive performances, are considered (semen and ejaculate characteristics, ovulation rate, fertility, embryo survival, fetal survival and litter size). Different parameters of fertility and litter size are discussed, including the contribution of both sexes to each phase of the reproductive cycle.
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Jones, H. W., and G. S. Jones. "Luteal Phase: Physiology and Pharmacotherapy." In Manual on Assisted Reproduction, 170–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-662-00763-1_7.

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Jones, H. W., and G. S. Jones. "Luteal Phase: Physiology and Pharmacotherapy." In Manual on Assisted Reproduction, 215–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-58341-4_8.

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Archer, David. "Luteal Phase Abnormalities — Diagnosis and Management." In Frontiers in Reproductive Endocrinology and Infertility, 51–57. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2625-7_4.

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Coughlan, Carol, and Bolarinde Ola. "Vaginal Bleeding in the Luteal Phase after IVF." In Assisted Reproduction Techniques, 265–70. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781444398854.ch63.

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Pepas, Litha, and Arri Coomarasamy. "Exposure to Infection in the Luteal Phase of IVF." In Assisted Reproduction Techniques, 283–88. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781444398854.ch67.

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Lin, Shu-Yen, and Po-An Chen. "Flowering." In Guava: botany, production and uses, 186–202. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789247022.0009.

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Abstract This chapter covers the various factors affecting the transformation of vegetative growth to reproductive phase of guava trees, and the phenology, anthesis and pollination in guava. The agricultural practices for regulating crop production are also discussed.
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Cresti, Mauro, Stephen Blackmore, and Jacobus L. van Went. "Progamic Phase and Fertilization." In Atlas of Sexual Reproduction in Flowering Plants, 165–239. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-58122-9_3.

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Schmutzler, R. K., C. Reichert, K. Diedrich, Ch Diedrich, H. van der Ven, S. Al-Hasani, and D. Krebs. "Luteal Phase and Embryonic Development in GnRH-Agonist/hMG-Cycles for In Vitro Fertilization." In Advances in Assisted Reproductive Technologies, 351–58. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0645-0_39.

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Garcia, Jairo, Javad Bayati, Theodore Baramki, and Santiago Padilla. "Follicular Phase Gonadotropin-Releasing Hormone Agonist and Human Gonadotropins: A Better Alternative for Ovulation Induction in In Vitro Fertilization." In Advances in Assisted Reproductive Technologies, 359–63. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0645-0_40.

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Conference papers on the topic "Reproductive phases"

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Maldonado-Castillo, Idalia, Mark G. Eramian, Roger A. Pierson, Jaswant Singh, and Gregg P. Adams. "Classification of Bovine Reproductive Cycle Phase using Ultrasound-Detected Features." In Fourth Canadian Conference on Computer and Robot Vision (CRV '07). IEEE, 2007. http://dx.doi.org/10.1109/crv.2007.16.

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Suhartina, Purwantoro, Novita Nugrahaeni, and Made Jana Mejaya. "Response of Soybean Lines to Drought Stress During Reproductive Phase." In 3rd KOBI Congress, International and National Conferences (KOBICINC 2020). Paris, France: Atlantis Press, 2021. http://dx.doi.org/10.2991/absr.k.210621.055.

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"Increased Darkness Phase in Photoperiodic Cycle: Underlying Condition for Male Reproductive Failure." In International Conference on Chemical, Agricultural and Medical Sciences. International Institute of Chemical, Biological & Environmental Engineering, 2014. http://dx.doi.org/10.15242/iicbe.c514078.

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Dagar, Ajay, and Rajesh M. Hegde. "Sparse Framework for Personal Sound Reproduction with Differential Phase Constraint." In 2020 International Conference on Signal Processing and Communications (SPCOM). IEEE, 2020. http://dx.doi.org/10.1109/spcom50965.2020.9179508.

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Vysotsky, Dmitri V., and Anatoly P. Napartovich. "Phase-locking of mulitcore fiber laser due to Talbot self-reproduction." In Saratov Fall Meeting 2001, edited by Vladimir L. Derbov, Leonid A. Melnikov, and Lev M. Babkov. SPIE, 2002. http://dx.doi.org/10.1117/12.469605.

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Bruhn, T. C., J. M. Morton, and C. L. Levesque. "The effects of phase feeding lysine during gestation on piglet vigor and sow reproductive performance." In 6th EAAP International Symposium on Energy and Protein Metabolism and Nutrition. The Netherlands: Wageningen Academic Publishers, 2019. http://dx.doi.org/10.3920/978-90-8686-891-9_96.

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Terasaki, J., A. Smetana, F. Šimkovic, and M. I. Krivoruchenko. "Reproduction of exact solutions of Lipkin model by nonlinear higher random-phase approximation." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF GLOBAL NETWORK FOR INNOVATIVE TECHNOLOGY AND AWAM INTERNATIONAL CONFERENCE IN CIVIL ENGINEERING (IGNITE-AICCE’17): Sustainable Technology And Practice For Infrastructure and Community Resilience. Author(s), 2017. http://dx.doi.org/10.1063/1.5007650.

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Bommer, Kathleen M., Angela DiBenedetto, and Jens O. M. Karlsson. "High-Speed Imaging of Intra-Embryonic Phase Transformation Events During Rapid Freezing of Zebrafish Embryos." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53953.

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The zebrafish (Danio rerio) represents an increasingly popular vertebrate animal model valuable for genetic and developmental biology research, due to its rapid rate of reproduction and the ability to directly observe the growing embryos, which are optically clear and develop ex vivo. However, the need to maintain live stock of each genetic strain (the number of which is growing exponentially) is risky and prohibitively costly. Although long-term banking of frozen embryos would solve this problem, to date, no adequate method for cryopreservation of zebrafish embryos has been found (Hagedorn et al., 2004).
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Jindong, Wu, and Wei Zhiqiang. "Key Technology Research on the Reproduction of Flight Level Path in Approach and Landing Phase." In 2011 International Conference on Intelligence Science and Information Engineering (ISIE). IEEE, 2011. http://dx.doi.org/10.1109/isie.2011.20.

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Pinet, Amelie, Alexandra Jullien, Jean-Michel Allirand, Amelie Mathieu, and Bertrand Ney. "Are Yield and Biomass Distribution Affected by Sink Organ Clipping During Reproductive Phase of Winter Oilseed Rape (Brassica napus L.)?" In 2009 Third International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA). IEEE, 2009. http://dx.doi.org/10.1109/pma.2009.53.

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Reports on the topic "Reproductive phases"

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Michie, Mark W., Richard A. Angerhofer, Mary P. Barlow, and Patricia A. Beall. Effects of Ingestion of Zinc Naphthenate on the Reproduction Function of Rats. Phase 5. Fort Belvoir, VA: Defense Technical Information Center, February 1988. http://dx.doi.org/10.21236/ada235224.

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Determining an effective and replicable communication-based mechanisms for improving young couples' access to and use of reproductive health information and services in Nepal—An operations research study. Population Council, 2004. http://dx.doi.org/10.31899/rh17.1009.

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This operations research study sought to determine an effective communication-based model for increasing the involvement of community-based groups in improving access to and use of reproductive health services and information by young married couples. The study employed a quasi-experimental design with two experimental and two nonequivalent control groups in the Udaypur district of Nepal. As stated in this report, this OR study clearly demonstrates the effectiveness of communication-based models such as the formation and reactivation of Youth Communication Action Groups and Mother’s groups, basic and refresher training, group interaction and mobilization, and social events in creating an enabling environment for young married couples to learn and interact about sexual and reproductive health issues. The increase in reproductive health-related knowledge and practice among young married women has been high in both experimental areas. However, changes in the practice of family planning and antenatal care have not shown consistent trends probably because of the conflict situation in the project sites during the implementation phase.
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