the biology of the aging brain

... the metabolism of the brain Sensors around the volunteer’s head monitor the radioactivity Computers convert the information into two-dimensional images The more active an area of the brain, the ... with some of the vocabulary and imagery needed to talk about and visualize brain structure neuron—nerve cell in the brain The neuron is the basis of the brain It is estimated that the brain contains ... Chapter Support the Aging Brain Orchestrate the Interplay Between Mind and Body Facts About Aging Quiz Physical Aspects Of Aging Psychological Aspects Of Aging Cognitive Aspects Of Aging Self-Quiz...

Ngày tải lên: 27/12/2013, 15:19

... provided the original work is properly cited 4 Evolution of the Molecular Biology of Brain Tumors and the Therapeutic Implications high grade gliomas The structure and compounds of the ECM of the brain ... (components of the lamina basalis), the β-subunit is the transmembrane part that binds to dystrophin Overexpression of dystroglycan decreased Evolution of the Molecular Biology of Brain Tumors and the Therapeutic ... mortality of the patient Moreover, the presence of the blood -brain barrier (BBB) limits the passage of a wide variety of anticancer agents The high incidence of recur‐ rence and poor prognosis of malignant...

Ngày tải lên: 23/03/2014, 10:20

... 1999), the PL face patch of the IT cortex (Issa & DiCarlo, 2012), as well as other IT regions of the cortex (Matsumoto, et al., 2005) Also, microstimulation of sites in the lower bank of the STS ... to the current state of knowledge about the properties and speed of object processing in the brain, from biology, through molecular and cognitive neuroscience to psychology Multiple brain imaging ... is also called the ―where‖ pathway The ventral stream on the other hand is primarily engaged in recognition of objects; hence it is also called the ―what‖ pathway The existence of these pathways...

Ngày tải lên: 22/12/2014, 20:09

... a sample of 439.1 Table summarizes the sociodemographic and psychological characteristics of the sample at the time of the first interview The majority of the sample was White (83%; the remainder ... in the composition of social networks over time could alter the relative availability and efficiency of different types of support because of changes in the availability of certain types of ties ... may change (e.g., according to the social convoy model), both theories lead us to the hypotheses that the quality of support in networks of older adults remain the same or actually increase over...

Ngày tải lên: 06/03/2014, 15:20

... 77 FIVE The Mommy Brain 95 SIX Emotion: The Feeling Brain 117 SEVEN The Mature Female Brain 135 EPILOGUE The Future of the Female Brain 159 vii C o n t e n ts APPENDIX ONE: The Female Brain and ... displays of status They often express agreement with a partner’s suggestions And when they have ideas of their own, they’ll put them in the form of questions, such as “I’ll be the teacher, okay?” Their ... created The boys pushed the girls around, refused to take turns, and would ignore a girl’s request to stop or give the toy back By the end of the morning, Leila had retreated to the other end of the...

Ngày tải lên: 08/03/2014, 23:20

... to aging However, the medical relevance of such interventions merits their careful analysis, so they are the topic of the remainder of this section One possibility is selectively to inhibit the ... inconsistent with the retention of essentially undiminished bioenergetic capacity [25], but they ostensibly supported the Ôtip of the icebergÕ hypothesis [26] that the low levels of deletion-bearing mtDNA ... present in tissue [27,28] Another possibility is that the deleted mtDNA found in the earlier studies [23,24] was in the process of being degraded: the finding [29] that most of the oxidized bases in...

Ngày tải lên: 17/03/2014, 23:20

... Over 80 Years of Research Expertise Over 80 Years of Research Expertise Leveraging the power of genetics in the search for cures to human disease search for cures to human disease Nonprofit research institute founded in  ... Resorption of fetuses of fetuses – Cannibalism of litters • Health status Health status • Seasonal effects Seasonal variation in inbred mice Seasonal variation in inbred mice Month of the year ... Cook MJ.  1965.  The Anatomy of the Laboratory Mouse http://www.informatics.jax.org/cookbook/ Sperm Production Sperm Production • Diploid spermatogonial stem cells – lifetime supply  • 12 stages of spermatogenesis...

Ngày tải lên: 22/03/2014, 12:20

... The rectangular part of the plot extends from the lower to the upper quartile; the centre lines within each box show the location of the sample medians; the crosses within each box indicate the ... 1990) The present work aims to study the reproductive biology of the marbled goby in the Aegean; more specifically to study the sex ratio, time of spawning, fecundity, and size at maturity of the ... goodness -of- fit test was undertaken to compare the sex ratios at each monthly sampling or within the size groups with the hypothesized sex ratio of 1:1 The gonadosomatic index (GSI), which describes the...

Ngày tải lên: 22/03/2014, 12:20

... and Björn Malmqvist The Biology of Mangroves Peter F Hogarth The Biology of Soft Shores and Estuaries Colin Little The Biology of the Deep Ocean Peter Herring The Biology of Lakes and Ponds, ... habitat The Biology of Rocky Shores Colin Little and F A Kitching The Biology of Polar Habitats G E Fogg The Biology of Lakes and Ponds Christer Brönmark and Lars-Anders Hansson The Biology of Streams ... Glacier Bay, on the coast of southeast Alaska, is one of the 12 THE BIOLOGY OF SOIL best known places for research on soil and ecosystem development because of the continuous retreat of the glaciers...

Ngày tải lên: 29/03/2014, 17:20

... race against the media and surely also against other people The future of the adapted mind is the creation of artificial people 401 XIII THE FUTURE OF THE ADAPTED MIND A feature of the adapted ... kind of average representation of stimuli of one class There are some hints that our brain solves the problem of storing faces with the help of prototypes We seem to build facial prototypes and then ... Brennan & Carey, 1987), where averaging a large number of faces in the brain derives the norm The second hypothesis is the ‘density alone hypothesis’, where the Gestalt is a pointby-point representation...

Ngày tải lên: 30/03/2014, 16:20

... log of this ratio, we find that the rate of change in this share equals the rate of change of P L , which is the rate of population a care expenditures on the elderly is: aging, and the rate of ... after the start of mortality decline, leading to a decline in the number of children and in the percentage of population in the child ages The large birth cohorts generated by the onset of the ... ―quantity-quality tradeoff‖ This tradeoff can mitigate the adverse effects of population aging on the economic support ratio by raising the quality and productivity of the smaller workforce Although the quantity-quality...

Ngày tải lên: 31/03/2014, 07:20

... The larval development of the prawns Macrobrachium equidens and Macrobrachium sp (Decapoda : Palaemonidae), reared in the laboratory Journal of Zoology Proceedings of the Zoological Society of ... der Wissenschaften Mathematisch-Naturwissenschaftliche Classe Wien 45: 389426 Holthuis, L B (1950) The Decapoda of the Siboga Expedition Part 10 The Palaemonidae collected by the Siboga and Snellius ... Decapoda) from the Xishuangbanna region of Yunnan province, southern China Hydrobiologia, 400: – 41 Cai, Y & P K L Ng (2001) The freshwater decapod crustaceans of Halmahera, Indonesia Journal of Crustacean...

Ngày tải lên: 02/04/2014, 09:20

... eight to eighty five and yet the favorite of each age group, N7, had a waist to hip ratio of or 70% So here is the definition of beauty as portrayed by the article The ideal man should be above ... psychologist at the University of Texas studying the attractive traits of the female figure His survey on attractive female figures gives an outlook on what men find most attractive According to the results ... waist-hip ratio of or 90% The ideal woman, on the other hand, should have large eyes, a small jaw, chin, and nose, full lips, firm, symmetrical breasts, unblemished skin, and a waist-hip ratio of or 70%...

Ngày tải lên: 02/04/2014, 17:59

... mitochondria, in the presence of the other members of the apoptosome, is a direct signal to apoptosis Apart from the mitochondrion as a key player in the apoptosis of neurons, the endoplasmic ... and clinicians, offering a fresh look at many (certainly not all) of the highly intertwined processes that determine the fate of CNS neurons in the face of acute or chronic insults The book is written ... oligonucleosomal DNA damage.275,276 Further evidence of apoptosis in excitotoxicity came with the examination of the activation of caspases in animal models of stroke 277 Inhibition of caspases in general by...

Ngày tải lên: 08/04/2014, 12:51

... area in the dorsal region of the cranial wall of the third endodermal pouch while the caudal portion of the very same pouch develops into the thymus which is involved in the maturation of the immune ... from the human PTH cDNA sequence15 and later confirmed by the determination of the structure of the human gene.16 The amino acid sequence of the rat pre-peptide was derived from the sequence of the ... over 200 bp of the intron, similar to the homology in the other non-translated regions of the genes The rat intron A is only 55-57% homologous to the other species The sequences of introns are...

Ngày tải lên: 08/04/2014, 12:52

... the number of founder cells, the time of onset of corticogenesis, the duration of the cell division cycle, the duration of the period of neurogenesis, the modes of cell division, the number of ... much less than the rest of the body The variety of face shapes in the diĂerent breeds of dog, which are all members of the same species, also provides a good example of the eĂects of diĂerential ... membrane) to the inner ear In the reptilian ancestors of mammals, the joint between the skull and the lower jaw was between the quadrate bone of the skull and the articular bone of the lower jaw,...

Ngày tải lên: 08/04/2014, 12:56

... swelling at the ventromedial side of the mesonephros Proliferation of the coelomic epithelium results in the generation of the gonadal primordium, which due to the presence or absence of the SRY ... either the HMG box or the C-terminal activation domain On the other hand, the extent of non-synonymous versus synonymous changes in the non-box regions of SRY, as well as the non-uniform rate of ... di¡erentiation of the testis as they participate with the Sertoli cells to form the epithelial testis LOVELL-BADGE ET AL cords The endothelial cells contribute to the characteristic vasculature of the testis,...

Ngày tải lên: 08/04/2014, 13:09

Ngày tải lên: 12/05/2014, 16:51

... scientists are often interested in the activity of the cortex The cortex is the thin layer of gray matter encasing the rest of the brain (or cerebrum) Thanks to its familiar folds and grooves, the cortex ... ages of man, the seven levels of hell, the seven primary colours, the seven notes of the musical scale, and the seven days of the week?” Miller’s idea is illustrated in Figure 1.1, where the xaxis ... stimulate the imagination, as Miller describes at the end: “What about the seven wonders of the world, the seven seas, the seven deadly sins, the seven daughters of Atlas in the Pleiades, the seven...

Ngày tải lên: 10/06/2014, 22:09

... is the foveal blind spot The wiring of the photocells of the vertebrate eye exit the cells on the inner face, not the exterior, of the retina Where they converge and together exit the eye, they ... their ratings of the pleasantness of the scent of a T-shirt, of the attractiveness of a person’s face (as presented in a photograph), or of the attractiveness of a person’s voice These “self-reports” ... that there was evolutionary maintenance of the glands during the evolutionary history of mammals Some kind of evolutionary mechanism must account for the retention of the glands in the Tree of...

Ngày tải lên: 11/06/2014, 10:37