標(biāo)題: Titlebook: Experimental Studies of Amphibian Development; Ernst Hadorn Textbook 1974 Springer-Verlag Berlin Heidelberg 1974 Regeneration.biology.cell [打印本頁] 作者: 棕櫚等 時間: 2025-3-21 19:04
書目名稱Experimental Studies of Amphibian Development影響因子(影響力)
書目名稱Experimental Studies of Amphibian Development影響因子(影響力)學(xué)科排名
書目名稱Experimental Studies of Amphibian Development網(wǎng)絡(luò)公開度
書目名稱Experimental Studies of Amphibian Development網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Experimental Studies of Amphibian Development被引頻次
書目名稱Experimental Studies of Amphibian Development被引頻次學(xué)科排名
書目名稱Experimental Studies of Amphibian Development年度引用
書目名稱Experimental Studies of Amphibian Development年度引用學(xué)科排名
書目名稱Experimental Studies of Amphibian Development讀者反饋
書目名稱Experimental Studies of Amphibian Development讀者反饋學(xué)科排名
作者: 圣歌 時間: 2025-3-21 20:46 作者: 有毒 時間: 2025-3-22 01:57 作者: Obliterate 時間: 2025-3-22 05:56
Experimental Production of Identical Twins,, including a new median axis, providing also for a general reduction in scale. Shortage of building materials means that, for the time being, everything, including eyes and brain, gut and heart, must be built only half as large as had been originally planned. Later on, after the larvae have begun t作者: 前面 時間: 2025-3-22 08:59 作者: Detoxification 時間: 2025-3-22 16:57 作者: Detoxification 時間: 2025-3-22 18:21
https://doi.org/10.1007/978-3-476-99484-4ed the eggs by shaking them (p. 15), Boveri was able to follow the development of egg pieces containing only paternal nuclear material. Would such hybrid merogones resemble the maternal species which supplied the cytoplasm or the paternal species which provided the nucleus?作者: ventilate 時間: 2025-3-22 21:29 作者: Keratin 時間: 2025-3-23 02:27
https://doi.org/10.1007/978-3-663-13380-3tball. The embryos can tolerate radical surgery, and even the biggest transplanted pieces heal into place within a quarter of an hour. Once sulfa drugs and antibiotics became available, the danger of infection was overcome, and now large series of operated animals are routinely kept in culture to any desired stage.作者: 有罪 時間: 2025-3-23 06:14 作者: SLAG 時間: 2025-3-23 13:43
From One Cell to Many,then does a multicellular animal emerge from just a single cell? What kind of distribution of the information in the genetic material takes place? How is it that one cell becomes a nerve cell and another a gland cell?作者: scotoma 時間: 2025-3-23 17:42 作者: RADE 時間: 2025-3-23 20:44
instances, been incorporated into the text. Furthermore, we have tried to explain some of the experiments, and their possible interpretations, in a more precise way. I am very grateful to Dr. David Turner; in addition to translating the text, he was able, thanks to his experience in developmental bi作者: 臭了生氣 時間: 2025-3-24 00:11 作者: 標(biāo)準(zhǔn) 時間: 2025-3-24 04:04 作者: PRE 時間: 2025-3-24 08:48 作者: delta-waves 時間: 2025-3-24 12:55 作者: 猛然一拉 時間: 2025-3-24 16:21
,Fortsetzung oder Neusch?pfung?,anges, switching the mating instincts into the female pattern. Such a “.” can be mated with a normal male and out of this unusual union of two genetically male animals, normal offspring can emerge and grow to maturity.作者: Microaneurysm 時間: 2025-3-24 22:59 作者: 強有力 時間: 2025-3-25 01:00
Fertilization of the Egg,ubstances (fertilizins) which affect the sperm, changing their surfaces in a way which enables them to penetrate the egg. But no one has been able to demonstrate that these egg substances directly attract the sperm. Indeed, within the animal kingdom such a chemotaxis (p. 104) has been proved only in the case of the marine hydroid ..作者: 吃掉 時間: 2025-3-25 05:58
Formative Movements, The middle layer is the . — its cell produce skeleton, musculature, circulatory system, gonads and kidneys. Innermost we find the ., from which develop the digestive tract, the liver, the lungs and other internal organs.作者: CHOIR 時間: 2025-3-25 09:58
On the Mechanism of Embryonic Induction, biologists have termed the ’twenties the “Period of Hope”, the next decade the “Period of Confusion”, and the ’forties the “Period of Depression”. The years since 1950 are perhaps a “Period of Renewed Hope”. Let us now recount some of the things that have been clarified in the course of all these ups and downs.作者: 江湖騙子 時間: 2025-3-25 14:47 作者: 可觸知 時間: 2025-3-25 18:12
Wandel zum hybriden Wohlfahrtsmix,at the haploid maternal chromosomal set of the egg nucleus contains a complete assortment of genetic factors. That which normally is provided by the father merely leads to a doubling of the genes, and so should be dispensable.作者: overrule 時間: 2025-3-25 22:46
Der sozialpsychische Organismus,ree years for them to reach full size. Under the influence of the gonadotropic hormones of the hypophysis (p. 4), the gonads increase in size during this youthful phase and the germ cells develop into mature, fertile, gametes.作者: Coronary-Spasm 時間: 2025-3-26 02:59 作者: guzzle 時間: 2025-3-26 08:07 作者: 摘要 時間: 2025-3-26 08:58
Fatherless and Motherless Beings,at the haploid maternal chromosomal set of the egg nucleus contains a complete assortment of genetic factors. That which normally is provided by the father merely leads to a doubling of the genes, and so should be dispensable.作者: cumulative 時間: 2025-3-26 14:43
Functions of the Genetic Material during Oocyte Maturation,ree years for them to reach full size. Under the influence of the gonadotropic hormones of the hypophysis (p. 4), the gonads increase in size during this youthful phase and the germ cells develop into mature, fertile, gametes.作者: 不能約 時間: 2025-3-26 20:32
Toward Order and Pattern: Cells on the Move,members of cohesive units. The sheet of mesoderm migrates inward, involuting around the blastopore lip and coming to lie beneath the ectoderm where it forms the roof of the archenteron. The endoderm also disappears inside the embryo, becoming embedded in mesoderm, while the ectodermal sheet stretches to cover the whole embryo.作者: sleep-spindles 時間: 2025-3-26 21:58 作者: Truculent 時間: 2025-3-27 04:11 作者: Radiculopathy 時間: 2025-3-27 08:53
Egg Laying and Provision for Posterity,e calmer waters near the shores of lakes. A little later, the common toads . deposit their eggs, embedded like pearls in long strings of jelly (Fig. lb). The European newts (. species) provide for each egg individually. They grasp leaves and stalks of aquatic plants with their hind legs and fold the作者: Dealing 時間: 2025-3-27 12:21
A Hormone as Trigger of Egg Laying,ry, on the underside of the brain (.) (cf. Fig. 2). This gland releases hormones into the blood in response to signals received from the hypothalamus, that part of the brain immediately adjacent. By mechanisms that are still quite obscure, seasonal changes in the environment are perceived and proces作者: 鑲嵌細(xì)工 時間: 2025-3-27 17:31 作者: Acetaminophen 時間: 2025-3-27 18:03 作者: Protein 時間: 2025-3-28 01:56 作者: Sigmoidoscopy 時間: 2025-3-28 02:28
Does the Nucleus Have a Monopoly on Inheritance?, the nucleus cannot function by itself, but only in cooperation with the cytoplasm. The question which now poses itself is: can we locate the boundaries of the nuclear and cytoplasmic spheres of influence? Theodor Boveri designed an experiment which he believed must provide the answer. He combined m作者: 發(fā)炎 時間: 2025-3-28 08:09
Functions of the Genetic Material during Oocyte Maturation,g destined to form the gonad. Once there, they enter upon one of two paths of differentiation, leading towards either egg or sperm. At the completion of metamorphosis (4–6 months in many amphibian species) the young newts and frogs are still very small. They grow quite slowly, and it takes two to th作者: 使顯得不重要 時間: 2025-3-28 11:02
From One Cell to Many,d in the zygote nucleus; all the specific construction elements and storage materials have been assembled in the cytoplasm. In the fertilized egg, therefore, everything is on hand which is essential for determination and guidance of the individual’s initial development. By the time development has b作者: deciduous 時間: 2025-3-28 18:09 作者: 聾子 時間: 2025-3-28 21:06 作者: 贊美者 時間: 2025-3-29 00:26 作者: LAITY 時間: 2025-3-29 06:56 作者: MOAT 時間: 2025-3-29 07:18 作者: Concerto 時間: 2025-3-29 15:11 作者: Exposure 時間: 2025-3-29 17:42
,A Newt with a Frog’s Mouth,rby objects. The tadpoles of anurans (tailless or frog-like amphibians) can anchor themselves to plants, rocks or even the film on the water’s surface with the aid of an adhesive secretion from a pair of bowl-shaped suckers (., Fig. 26b). In the larvae of the urodeles (tailed amphibians) this attach作者: 令人不快 時間: 2025-3-29 20:56 作者: 保守 時間: 2025-3-30 02:12 作者: 吹牛大王 時間: 2025-3-30 04:31
The Male Toad as Mother, Bidder’s organ (.). Nearby, and readily apparent, is the embryonic oviduct (.), still intact. If the testes of this animal are now surgically removed, an impressive sexual transformation results from the castration (Fig. 33 b). Bidder’s organ develops promptly into a functional ovary (.), and durin作者: 絕緣 時間: 2025-3-30 08:28
http://image.papertrans.cn/e/image/318932.jpg作者: Intervention 時間: 2025-3-30 15:14 作者: Irascible 時間: 2025-3-30 19:40 作者: VERT 時間: 2025-3-30 22:37 作者: 鞏固 時間: 2025-3-31 03:00
F. Fay,G. Long,M. Thiault,L. Trabauda part of the kidney reserved for the passage of sperm. Then the sperm duct (. = Wolffian duct) takes the sperm and leads them to the cloaca (.) and urinary bladder (.) whence they can reach the outside. The eggs, in comparison, must complete a much more eventful and obstacle-ridden course within th作者: watertight, 時間: 2025-3-31 05:28 作者: fertilizer 時間: 2025-3-31 11:39 作者: BINGE 時間: 2025-3-31 17:15
https://doi.org/10.1007/978-3-476-99484-4 the nucleus cannot function by itself, but only in cooperation with the cytoplasm. The question which now poses itself is: can we locate the boundaries of the nuclear and cytoplasmic spheres of influence? Theodor Boveri designed an experiment which he believed must provide the answer. He combined m作者: Prognosis 時間: 2025-3-31 20:46
Der sozialpsychische Organismus,g destined to form the gonad. Once there, they enter upon one of two paths of differentiation, leading towards either egg or sperm. At the completion of metamorphosis (4–6 months in many amphibian species) the young newts and frogs are still very small. They grow quite slowly, and it takes two to th作者: Melanoma 時間: 2025-4-1 01:43 作者: 團(tuán)結(jié) 時間: 2025-4-1 05:18 作者: 失眠癥 時間: 2025-4-1 08:48
https://doi.org/10.1007/978-3-658-16317-4olve three distinguishable kinds of cell behavior: cell segregation, cell migration and cell association. These developmental dynamics begin with the segregation of the germ layers at gastrulation (p. 47). The cells destined to become ectoderm, mesoderm and endoderm move, not as individuals, but as 作者: emission 時間: 2025-4-1 12:02 作者: 小臼 時間: 2025-4-1 16:10
https://doi.org/10.1007/978-3-663-13380-3struments, such as glass needles, pipettes and hair loops, he could dissect out a piece from any region of a blastula or gastrula and then transplant it wherever he chose, either elsewhere in the same embryo or into a different one. The manipulations are performed under a binocular dissecting micros作者: 概觀 時間: 2025-4-1 21:29
