Distribution of the catecholaminergic neurons in the central nervous system of human embryos and fetuses.

abstract：:All organisms exhibit significant daily rhythms in a myriad of functions from molecular levels to the level of the whole organism. Significantly, most of these rhythms will persist under constant conditions, showing that they are driven by an internal circadian clock. In birds the circadian system is composed of sever...

journal_title：Microscopy research and technique

authors： Underwood H,Steele CT,Zivkovic B

更新日期：2001-04-01 00:00:00

abstract：:Despite the large number of species, their wide distribution, and unique reproductive characteristics, Neotropical bats have been poorly studied, and important aspects of the reproduction of these animals have not been elucidated. We made an ultrastructural analysis of spermatogenesis in Molossus molossus (Molossidae)...

journal_title：Microscopy research and technique

authors： Beguelini MR,Taboga SR,Morielle-Versute E

更新日期：2012-07-01 00:00:00

abstract：:During late anaphase and telophase, animal cells develop a bundle of antiparallel, interdigitating microtubules between the two daughter nuclei. Recent data indicate that this structure, called the central spindle, plays an essential role during cytokinesis. Studies in Drosophila and on vertebrate cells strongly sugge...

journal_title：Microscopy research and technique

authors： Gatti M,Giansanti MG,Bonaccorsi S

更新日期：2000-04-15 00:00:00

abstract：:In order to fulfill its many functions as the selective interface between maternal and fetal circulations it is imperative that the human placenta remains intact and in good operational order. That damage of some sort occurs during its short but extremely active life seems inevitable given the dynamic environment in w...

journal_title：Microscopy research and technique

authors： Watson AL,Burton GJ

更新日期：1998-09-01 00:00:00

abstract：:In this paper we present the state of knowledge on cell-cell interactions in the testis of two groups of anamniote vertebrates--teleosts and elasmobranchs--which include most fish. In these fish, the structural organization of the testis differs fundamentally from that which characterizes amniotes in which the germina...

journal_title：Microscopy research and technique

authors： Loir M,Sourdaine P,Mendis-Handagama SM,Jégou B

更新日期：1995-12-15 00:00:00

abstract：:Ultramicrotomy has found novel application in materials research using transmission electron microscopy, for both analytical and high resolution work. Specimens 20-50 nm in thickness with lateral dimensions of up to 100 microns may routinely be prepared, with the additional advantage of precise area location for cross...

journal_title：Microscopy research and technique

authors： Glanvill SR

更新日期：1995-07-01 00:00:00

abstract：:We present a microscopic investigation of nanocomposite films of iron oxide (γ-Fe(2)O(3)) magnetic nanowires (NWs) aligned into polymers, formed upon evaporation of solutions of acrylate polymer/magnetic nanoparticles under magnetic field (MF). The field causes the assembly of the γ-Fe(2)O(3) nanoparticles along the d...

journal_title：Microscopy research and technique

authors： Fragouli D,Torre B,Bertoni G,Buonsanti R,Cingolani R,Athanassiou A

更新日期：2010-10-01 00:00:00

abstract：:Currently, exploration of alternative energy resources is hotly debated among the scientific community owing to rising energy crises and environmental issues. Biodiesel, as renewable energy source proves to be a better option and substitute to petro diesel. In this regard, nonedible seeds could be a better feedstock f...

journal_title：Microscopy research and technique

authors： Munir M,Ahmad M,Waseem A,Zafar M,Saeed M,Wakeel A,Nazish M,Sultana S

更新日期：2019-07-01 00:00:00

abstract：:Gap junctions are specialized plasma membrane structures that join neighboring cells via specialized intercellular ion channels (hemichannels) and provide a direct pathway for cell-cell communication. They presumably mediate regulation of growth, transmission of developmental signals, coordination of muscle contractio...

journal_title：Microscopy research and technique

authors： Lal R,Lin H

更新日期：2001-02-01 00:00:00

abstract：:It is increasingly recognized that neuroepithelial endocrine cells and organoid clusters of these cells termed neuroepithelial bodies are widely distributed in the respiratory tract of vertebrates. This review focuses on the neuroepithelial endocrine system in the airway epithelium of mammals according to observations...

journal_title：Microscopy research and technique

authors： Scheuermann DW

更新日期：1997-04-01 00:00:00

abstract：:There are no studies on stem cells (SCs) and development and differentiation (DD) of the human adrenal glands. The SCs in DD of the adrenal glands were herein investigated histochemically and immunohistochemically in 18 human embryonic adrenal glands at gestational week (GW) 7-40. At 7 GW, the adrenal glands were pres...

journal_title：Microscopy research and technique

authors： Terada T

更新日期：2015-01-01 00:00:00

abstract：:The principal functions of the gastrointestinal tract mucosa include nutrient absorption, protein and fluid secretion, and the regulated symbiosis with intraluminal contents. Research in epithelial biology has benefited significantly from the use of cultured monolayer preparations, which closely replicate the structur...

journal_title：Microscopy research and technique

authors： Gilbert RJ,Hoffman M,Capitano A,So PT

更新日期：2000-10-15 00:00:00

abstract：:The cellular prion protein PrP(c) is a neurolemmal glycoprotein essential for the development of the transmissible spongiform encephalopathies. In these neurodegenerative diseases, host PrP(c) is converted to infectious protease-resistant isoforms PrP(res) or prions. Prions provoque predictable and distinctive pattern...

journal_title：Microscopy research and technique

authors： Haeberlé AM,Ribaut-Barassin C,Bombarde G,Mariani J,Hunsmann G,Grassi J,Bailly Y

更新日期：2000-07-01 00:00:00

abstract：:Antlion (Myrmeleon sagax) larvae live in sandy soil and possess the ability to enter soil quickly. In this article, the hierarchical structure of the nonsmooth surface of antlion larvae was obtained using a scanning electron microscope (SEM). Based on the results, a bionic nonsmooth structure model was established to ...

journal_title：Microscopy research and technique

authors： Tong J,Wu B,Song Z,Gao Z,Sun J,Ma Y,Zhuang J

更新日期：2020-04-01 00:00:00

abstract：:Parathyroid glands (n = 271) removed from 130 patients were examined by light and electron microscopy. A standardized method of tissue processing was employed and morphometry was performed. The aim of the paper is to provide a description of the human parathyroid chief cell ultrastructure in health and disease, with q...

journal_title：Microscopy research and technique

authors： Cinti S,Sbarbati A

更新日期：1995-10-01 00:00:00

abstract：:Protein expression patterns are a primary determinant of tissue function and in this study we developed methods to study protein expression over macroscopic distances at subcellular levels of detail. Using the mammalian lens as a model tissue system, we show that by combining two-photon microscopy with novel image mon...

journal_title：Microscopy research and technique

authors： Jacobs MD,Donaldson PJ,Cannell MB,Soeller C

更新日期：2003-09-01 00:00:00

abstract：:Effects of microstructure and phase component on mechanical property of spearer propodus of mantis shrimp were investigated. The spearer propodus consisted of three layers including epicuticle (outer layer), exocuticle (middle layer), and endocuticle (inner layer). The outer layer was composed of fluorapatite, which w...

journal_title：Microscopy research and technique

authors： Zhao Q,Chang Y,Lin Z,Zhang Z,Han Z,Ren L

更新日期：2020-09-16 00:00:00

abstract：:Cartilage morphogenesis is a prerequisite for skeletal development and maintenance. The morphogenesis of cartilage determines the shape of bones, and joints including articular cartilage, ligaments, and tendon. This article reviews the recent advances in cartilage-derived morphogenetic proteins (CDMPs) and related bon...

journal_title：Microscopy research and technique

authors： Reddi AH

更新日期：1998-10-15 00:00:00

abstract：:Puffers show good drag reduction performance during migration. It is worth noting that spines which are different from ordinary fish scales are densely distributed on the puffer skin. Here, the special morphological structure of puffer spines was observed using microscopy techniques, accurate contour models were estab...

journal_title：Microscopy research and technique

authors： Zhou H,Liu C,Tian G,Feng X,Jia C

更新日期：2020-07-01 00:00:00

abstract：:The fine structure of the taste buds of circumvallate papillae of two strains of mice was studied by electron microscopy. Mice anesthetized with ketamine were perfused through the heart with a double aldehyde mixture in cacodylate buffer and the tissues embedded in Epon. Semi-serial sections were employed. The morphol...

journal_title：Microscopy research and technique

authors： Murray RG

更新日期：1993-10-15 00:00:00

abstract：:The study focused on the description of pig gallbladder angioarchitecture, with particular emphasis on the specifics of the course of blood vessels in individual layers of the gallbladder wall. Furthermore, the vascular systems of the pig gallbladder were analyzed in terms of the adaptation of this organ to changes in...

journal_title：Microscopy research and technique

authors： Prozorowska E,Jackowiak H

更新日期：2014-09-01 00:00:00

abstract：:One of the lessons learned from studying the nervous systems of phylogenetically distant species is that many features are conserved. Indeed, aminergic neurons in invertebrate and vertebrate systems share a multitude of common characteristics. In this review, the varied roles of serotonin, octopamine, dopamine, and hi...

journal_title：Microscopy research and technique

authors： Beltz BS

更新日期：1999-01-15 00:00:00

abstract：:To evaluate the performance degradation of fabric drying in domestic air-vented dryer, the appearance, mechanical, and microscopic properties of the wool fabric after different drying cycles were studied. Pilling and dimensional stability tests were performed according to established international standards. Microscop...

journal_title：Microscopy research and technique

authors： Wei Y,Wang X,Su Z,Ding X

更新日期：2017-08-01 00:00:00

abstract：:The enzyme adenylyl cyclase (AC) plays a pivotal role in smooth muscle relaxation. Biochemical evidence suggests that AC is predominantly located in the outer layers of the myometrium; however, neither immunocytochemical nor histochemical studies have been undertaken to demonstrate the specific cellular distribution o...

journal_title：Microscopy research and technique

authors： Richards PD,Tiltman AJ,Richards PA

更新日期：1998-03-15 00:00:00

abstract：:Combined microscopy techniques are used to establish the usability of phosphonic acid layers as promoters of hydroxyapatite (HAp) growth. Using spread coating, octadecylphosphonic acid (OPA) self-assembled bilayers are delivered to the thin natural oxide layer of a titanium film surface with no prior treatment. These ...

journal_title：Microscopy research and technique

authors： Prado MC,Archanjo BS,Vasconcelos TL,Ladeira LO,Neves BR

更新日期：2013-12-01 00:00:00

abstract：:This study was undertaken to investigate the pecten oculi of stork by using macroscopic, light and electron microscopic techniques. A total of 20 eyes that were obtained from 10 storks were used. The eyes were cleaned and isolated by dissection. After various procedures, four of the pecten oculi were examined by light...

journal_title：Microscopy research and technique

authors： Onuk B,Tutuncu S,Alan A,Kabak M,Ince NG

更新日期：2013-09-01 00:00:00

abstract：:The effectiveness of different microscopy techniques for measuring the dimensions of ultimate fibers from harakeke (Phormium tenax, New Zealand flax) was investigated using a factorial experimental design. Constant variables were geographical location, location of specimens along the leaf, season (winter), individual ...

journal_title：Microscopy research and technique

authors： Cruthers N,Carr D,Niven B,Girvan E,Laing R

更新日期：2005-08-01 00:00:00

abstract：:A common feature in the configuration of germinal vesicle (GV) chromatin in most species is that diffuse chromatin condenses into a perinucleolar ring during follicular growth; however, no such ring was observed in goat oocytes. Reports on whether bovine GV chromatin condenses into a perinucleolar ring are controversi...

journal_title：Microscopy research and technique

authors： Liu Y,Sui HS,Wang HL,Yuan JH,Luo MJ,Xia P,Tan JH

更新日期：2006-10-01 00:00:00

abstract：:Numerous highly fluorescent macrophages (MPhi), designated "smoker cells," exist in the lungs of smokers and subjects who have quit smoking within 5 years. The brightly fluorescent MPhi, however, are not present in the lungs of never smokers. Some investigators have speculated that the intense fluorescence of the MPhi...

journal_title：Microscopy research and technique

authors： Pauly JL,Allison EM,Hurley EL,Nwogu CE,Wallace PK,Paszkiewicz GM

更新日期：2005-06-01 00:00:00

abstract：:Diestian ferruginous sandstone has been used as the dominant building stone for monuments in the Hageland, a natural landscape in east-central Belgium. Like all rocks, this stone type is sensitive to weathering. Case hardening was observed in combination with blackening of the exterior parts of the dressed stones. To ...

journal_title：Microscopy research and technique

authors： Cnudde V,Dewanckele J,Boone M,de Kock T,Boone M,Brabant L,Dusar M,de Ceukelaire M,de Clercq H,Hayen R,Jacobs P

更新日期：2011-11-01 00:00:00