作者: mechanism 時(shí)間: 2025-3-21 22:04 作者: 沒血色 時(shí)間: 2025-3-22 02:26
The Circadian Systems of Cells,hysiological and biochemical research in unicellular organisms shows, however, that the circadian system is highly complex on one hand and exquisitely compensated on the other—qualities that are as yet not entirely explained by the molecular loop. The results gained in unicellular and simple organis作者: CRATE 時(shí)間: 2025-3-22 07:09 作者: 說笑 時(shí)間: 2025-3-22 09:39 作者: Peristalsis 時(shí)間: 2025-3-22 13:57 作者: 課程 時(shí)間: 2025-3-22 17:42 作者: 細(xì)微的差異 時(shí)間: 2025-3-22 21:49 作者: STIT 時(shí)間: 2025-3-23 02:25 作者: Atrium 時(shí)間: 2025-3-23 07:07
Biological Rhythms in Arctic Animals, which is markedly reduced at those times of the year when the light/dark cycle is absent. Presumably, their endogenous biological clocks or circadian machinery is flexible and becomes dampened to such an extent as to allow these animals to exploit their environment maximally at those times of the y作者: 沉思的魚 時(shí)間: 2025-3-23 11:36 作者: 蔑視 時(shí)間: 2025-3-23 17:13
of investigation. Reference citation within the body of the text adequately reflects the literature as subject is developed. A chapter begins with an abstract that enables a reader to know at the first glance the important points covered in that chapter. The chapter concludes with a full cit978-3-662-06087-2978-3-662-06085-8作者: ABIDE 時(shí)間: 2025-3-23 20:48 作者: 不公開 時(shí)間: 2025-3-23 22:56 作者: Talkative 時(shí)間: 2025-3-24 02:59
Erkrankungen des Nervensystems, The retinal rhythms of arthropods can be used as direct monitors of pacemaker time. In this paper we mainly review the basic mechanisms of adaptation, especially the signals and signalling pathways of the endogenous control of retinal rhythmicity in arthropod models. We use these results to demonst作者: CRUMB 時(shí)間: 2025-3-24 08:43 作者: Intact 時(shí)間: 2025-3-24 12:56
https://doi.org/10.1007/978-3-663-06764-1e circadian system remains unclear, but must surly be related to the sensory task of twilight detection. During twilight, the quality of light changes in three important respects: (1) the amount of light; (2) the spectral composition of light; (3) and the position of the sun. In theory all of these 作者: Irrigate 時(shí)間: 2025-3-24 17:03
,S?urebasengleichgewicht und Atmung,. Recent technical advances have made it possible to record robust swimming activity rhythms from larval zebrafish. These methods may also be applicable to measurement of behavioral rhythms in other fish and amphibians. Recent studies of the zebrafish and . homologs of mammalian clock-related genes 作者: 晚間 時(shí)間: 2025-3-24 22:33 作者: 平躺 時(shí)間: 2025-3-25 01:09
Klinische Chemie und Mikroskopieg the resemblance of periodicity of REM cycles and some performances, the Brac concept cannot explain the diversity in frequency and mechanisms. The period length of many ultradian rhythms scale with body mass very similarly. Such allometry, without clarifying causal principles, indicates the potent作者: 蟄伏 時(shí)間: 2025-3-25 04:51 作者: Bronchial-Tubes 時(shí)間: 2025-3-25 08:03
Klinische Chemie und Mikroskopieiurnal and nocturnal species in response to melatonin, although this possibility has not been thoroughly investigated. Until such issues are resolved and the mechanisms of melatonin action are elucidated, application of the hormone in the clinical setting may be premature.作者: Resign 時(shí)間: 2025-3-25 14:25
https://doi.org/10.1007/978-3-642-72427-5 negative feedback. This leads to the generation of oscillations because of delay in the feedback loops. Natural selection has often acted to dampen the amplitude of these oscillations but a few have been enhanced and their periods have been adjusted to match closely the periods of astronomical even作者: doxazosin 時(shí)間: 2025-3-25 16:43
https://doi.org/10.1007/978-3-642-72427-5ation. The majority of the few empirical studies of the possible adaptive significance of circadian organisation suffer from numerous shortcomings that we can now identify based on hindsight gained through three decades of experimental work in evolutionary genetics. We present here some of the major作者: irreparable 時(shí)間: 2025-3-25 22:17 作者: nascent 時(shí)間: 2025-3-26 01:53 作者: Antimicrobial 時(shí)間: 2025-3-26 08:00 作者: DUCE 時(shí)間: 2025-3-26 10:08 作者: 單色 時(shí)間: 2025-3-26 14:15
https://doi.org/10.1007/978-3-662-42419-3 (lights on/off programs) these natural . signals guarantee better external and internal synchronisation with respect to precision (onset of activity), threshold (of effective stimuli) and range of entrainment. This has been shown in humans, various rodent species, birds and arthropods. It is a so f作者: 鋸齒狀 時(shí)間: 2025-3-26 17:50 作者: stress-test 時(shí)間: 2025-3-27 00:55 作者: hermitage 時(shí)間: 2025-3-27 01:38
,L?vulosurie, Lactosurie, Pentosurie,ide) a very useful experimental model for the understanding of the vertebrate circadian system. The circadian organization of reptiles is multioscillatory in nature. The retinas, the pineal and the parietal eye (and, possibly, the SCN) contain circadian clocks. Of particular interest is the observat作者: 詳細(xì)目錄 時(shí)間: 2025-3-27 08:32
https://doi.org/10.1007/978-3-642-96326-1information about the photic environment is exclusively received from the eyes, the avian circadian pacemaking system is characterized by high complexity and diversity. Birds have the capacity to obtain information about the photic environment by retinal, pineal, and deep encephalic photoreceptors. 作者: Explosive 時(shí)間: 2025-3-27 12:39
https://doi.org/10.1007/978-3-642-96326-1ion of interest in this area of the brain. Today, research is aimed at determining how . information is relayed to the SCN circadian pacemaker, including the identification of the neural pathways via which this information is communicated, the neurochemicals contained in these pathways, the receptor作者: 客觀 時(shí)間: 2025-3-27 17:04 作者: 腐蝕 時(shí)間: 2025-3-27 19:39 作者: Merited 時(shí)間: 2025-3-27 23:41 作者: Mortal 時(shí)間: 2025-3-28 03:41 作者: FLAG 時(shí)間: 2025-3-28 09:19 作者: Mast-Cell 時(shí)間: 2025-3-28 11:32 作者: 寒冷 時(shí)間: 2025-3-28 18:38
https://doi.org/10.1007/978-3-663-06764-1Light profoundly affects the circadian system of organisms. This chapter reviews the photoreceptors receiving the light and transducing it to the pacemakers controlling the eclosion and locomotor activity rhythms of ..作者: CLAY 時(shí)間: 2025-3-28 20:30
Circadian Frequency and Its Variability,This essay is dedicated to our friend Maroli K. Chandrashekaran in recognition of his many original contributions to biological rhythm research and of his lifelong stimulation of this field, in particular in India.作者: CROAK 時(shí)間: 2025-3-29 00:50
Photoreceptors for the Circadian Clock of the Fruitfly,Light profoundly affects the circadian system of organisms. This chapter reviews the photoreceptors receiving the light and transducing it to the pacemakers controlling the eclosion and locomotor activity rhythms of ..作者: 錢財(cái) 時(shí)間: 2025-3-29 03:43
https://doi.org/10.1007/978-3-662-06085-8Photopheriode; Uhr; biology; circadian; clock; evolution; fish; genetics; molecular biology; receptor; regulat作者: somnambulism 時(shí)間: 2025-3-29 07:16
978-3-662-06087-2Springer-Verlag Berlin Heidelberg 2002作者: notification 時(shí)間: 2025-3-29 13:50 作者: 招致 時(shí)間: 2025-3-29 18:42 作者: 暫時(shí)中止 時(shí)間: 2025-3-29 20:33 作者: 流利圓滑 時(shí)間: 2025-3-30 00:39
The Circadian Organization of Reptiles,ion that the role these structures play in the circadian organization varies considerably among species and within the same species in different seasons. Another remarkable feature of this class is the redundancy of circadian photoreceptors: retinas of the lateral eyes, pineal, parietal eye and the brain all contain photoreceptors.作者: Scintillations 時(shí)間: 2025-3-30 08:04 作者: falsehood 時(shí)間: 2025-3-30 08:41 作者: lobster 時(shí)間: 2025-3-30 16:13
Wenn die Haut partout nicht heilen will,he improvement of molecular biology techniques has fostered dramatic advancements in our knowledge of the molecular workings of circadian clocks in many different organisms, man included. The present review is an attempt to summarize our current understanding of the genetic and molecular biology of circadian clocks.作者: Obsequious 時(shí)間: 2025-3-30 17:18
Clocks, Genes and Evolution: The Evolution of Circadian Organization, long-term research programme combining selection studies on replicated sets of laboratory populations with a careful study of fitness effects of different light regimes on such populations is likely to prove far more fruitful than some of the approaches previously followed.作者: 隱語 時(shí)間: 2025-3-30 22:00 作者: 背景 時(shí)間: 2025-3-31 02:47 作者: 畫布 時(shí)間: 2025-3-31 08:49 作者: Redundant 時(shí)間: 2025-3-31 10:28 作者: 江湖騙子 時(shí)間: 2025-3-31 15:03 作者: Ornament 時(shí)間: 2025-3-31 20:19
rs 11 to 14) summarise important features of the biological clock at the level of whole animal covering all vertebrate classes (fish to mammal). Chapters 15 and 16 are on long term (seasonal) rhythms in plants and higher vertebrates. Short term rhythms (ultradian rhythms), the significance of having作者: OREX 時(shí)間: 2025-3-31 23:05
https://doi.org/10.1007/978-3-642-96326-1ity and diversity. Birds have the capacity to obtain information about the photic environment by retinal, pineal, and deep encephalic photoreceptors. There are at least three autonomous circadian oscillators involved in the regulation of circadian rhythms at the organismic level, the retina, the pineal gland, and the hypothalamic oscillator.作者: inundate 時(shí)間: 2025-4-1 05:02 作者: –吃 時(shí)間: 2025-4-1 07:34
The Circadian Pacemaking System of Birds,ity and diversity. Birds have the capacity to obtain information about the photic environment by retinal, pineal, and deep encephalic photoreceptors. There are at least three autonomous circadian oscillators involved in the regulation of circadian rhythms at the organismic level, the retina, the pineal gland, and the hypothalamic oscillator.作者: 盲信者 時(shí)間: 2025-4-1 12:44
Photoperiodism in Plants, The resulting photoperiodic response rhythm (PRR) has a period of about 24 h, shows temperature compensation, and is entrained by light. Light also has a direct (‘a(chǎn)cute’) response, inhibiting or promoting induction at particular phases, and so giving rise to the external coincidence model for control of induction.作者: arthroscopy 時(shí)間: 2025-4-1 18:16
Biological Clocks at the End of the 20th Century, negative feedback. This leads to the generation of oscillations because of delay in the feedback loops. Natural selection has often acted to dampen the amplitude of these oscillations but a few have been enhanced and their periods have been adjusted to match closely the periods of astronomical even作者: 引導(dǎo) 時(shí)間: 2025-4-1 21:44
