Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Bradford : Emerald
    British food journal 103 (2001), S. 460-478 
    ISSN: 0007-070X
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: In Spain, food distribution has been revolutionised over the past 15 years. Traditional food stores are in the process of slowly disappearing, while hypermarkets and supermarkets are increasing their presence, and more importantly, their market share. To understand better the causes behind this revolution, examines the existent literature on distribution trends, generally, in Spain. The Spanish distribution industry is marked by governmental deintermediation, consumers' orientation toward value and competitors' quest for efficiency through centralisation, as well as the development of new services and micro marketing actions, with the objective of increasing customer loyalty. Focuses on Spanish food product distribution, marked by the progressive drop in the number of traditional stores, the appearance of discounters specialising in the sale of own-brands and having aggressive prices, the notable growth of hypermarkets because of their diversified offering and near-cost prices, and the success of supermarkets, rooted in their ability to open multiple points of sale, positioning themselves between hypermarkets and discounters.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Organometallic Chemistry 326 (1987), S. C33-C36 
    ISSN: 0022-328X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1432-0827
    Keywords: Goserelin ; Uterine leiomyomata ; Bone loss
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract We evaluated the effects on bone mineral density (BMD) of a 12-month treatment with goserelin depot, a gonadotropin-releasing hormone agonist, in a group of women with symptomatic uterine myomas requiring hysterectomy. Sixteen women, mean age 45.6±5.0, reporting menorrhagia associated with uterine myomas, candidates for hysterectomy, were scheduled to be treated with goserelin depot for 12 months. BMD was measured at the vertebral (L2–L4) and proximal femur level (femoral neck and trochanter) at the start of therapy and 6, 12, and 18 months later using dual energy X-ray absorptiometry (Hologic QDR 1000/W). The patients were followed for a minimum of 6 months after the end of treatment. Thirteen of the 16 women enrolled completed the treatment and three suspended it after 5, 6, and 7 months, respectively, because of side effects (hot flashes, insomnia, depression). Of the 13 women who completed the treatment, three underwent hysterectomy because of myoma regrowth and the recurrence of symptoms 3–18 months later; four reached the menopause 5–16 months later, and six were all menstruating normally with a follow-up varying from 6 to 18 months. After 12 months of therapy we observed a bone loss at vertebral, femoral neck, and trochanter of 4.4% (P〈0.05 versus baseline; P = not significant versus 6 months), 7.5% (P〈0.01 versus baseline, P〈0.01 versus 6 months), and 7.6% (P〈0.001 versus baseline, P〈0.05 versus 6 months), respectively. Six months later, BMD increased slightly and not significantly at different sites (0.9% at the spine, and 0.3% at femoral neck, and 1.1% at trochanter). A 12-month treatment with goserelin may avoid the need for hysterectomy in women over 40 with symptomatic myomas. However, this therapy is associated with a marked bone loss which is not significantly reversed at its suspension.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Molecular Reproduction and Development 31 (1992), S. 215-222 
    ISSN: 1040-452X
    Keywords: RGD ; α5 ; Immunobeads ; Integrins ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The Arg-Gly-Asp peptide (RGD), contained in several extracellular matrix proteins such as fibronectin, laminin, vitronectin, and collagen, is a tripeptide that plays a role as a recognition sequence in many cell-to-cell and cell-to-matrix adhesion mechanisms, through its interaction with several receptors of the integrin family. We previously described the ability of the oolemma of hamster oocytes to bind GRGDTP coupled to the surface of activated immunobeads and demonstrated that RGD-containing oligopeptides inhibit the adhesion of human and hamster spermatozoa to zona-free hamster oocytes and their subsequent penetration. In the present experiments, we show, utilizing immunobeads coated with an RGD-containing peptide (PepTiteTM 2000), that the oolemma of unfertilized human eggs is also able to recognize this adhesion sequence. The binding of PepTiteTM 2000-coated immunobeads to the oolemma was inhibited by the oligopeptide GRGDTP as well as by fibronectin and laminin. When immunobeads were prepared with a PepTiteTM concentration of 10 μg/ml, GRGDTP 150 μg/ml, laminin 80 μg/ml, and fibronectin 60 μg/ml inhibited bead rosetting on the egg surface. These data suggest that a specific binding moiety for RGD is present on the human egg surface. The binding of fibronectin to the oolemma was also demonstrated by the rosetting of immunobeads coupled with antifibronectin antibody to human oocytes after their exposure to 1 mg/ml free fibronectin. Such binding of fibronectin to the oolemma could be inhibited by coincubation with a monoclonal antibody directed against the cell adhesion fragment of fibronectin. In addition, oolemmal rosetting of immunobeads coupled with a monoclonal antibody directed against the α5 subunit, usually part of the fibronectin receptor VLA 5 (α5β1), provided additional evidence that a putative fibronectin receptor is present on the oolemma of human eggs.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Molecular Reproduction and Development 36 (1993), S. 212-219 
    ISSN: 1040-452X
    Keywords: Fibronectin ; Vitronectin ; VLA proteins ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: Integrins are a family of cell adhesion receptors involved in many cell-cell and cell-matrix interactions. Some of these heterodimeric receptors, such as α5b̃1 and αvb̃1, specifically recognize the amino acid sequence Arg-Gly-Asp (RGD) within their ligands. The RGD sequence is found in fibronectin, vitronectin, and other extracellular matrix proteins. Our results demonstrate that the oolemmas of eggs from human and several other mammalian species contain receptors capable of binding to RGD ligands, and that integrin subunits are expressed by oocytes. Four distinct techniques were utilized to identify the presence of functional integrins on mammalian eggs. RGD-binding receptors were detected on the surfaces of zona-free eggs from all species tested. Covaspheres coated with PepTite-2000, which contains RGD, bound to the eggs and formed rosettes. Rosetting was competitively inhibited by PepTite-2000 and by GRGDTP, a soluble RGD peptide, but not by RGES. An ELISA using polyclonal antibodies directed against the cytoplasmic tails of the integrin subunits identified the integrin subunits α5, b̃1, and αv, but not b̃3, in detergent extracts of Syrian hamster eggs. A dot blot confirmed the presence of αv in hamster egg lysates. Finally, the integrin subunits α2, α5, α6, but not α4, were detected on the surfaces of zona-free eggs from human and Syrian hamster. Immunobeads coated with monoclonal antibodies specific for α2, α5, and α6 bound to the eggs and formed rosettes. A similar rosetting was obtained from beads coated with polyclonal antibody against the vitronectin receptor (αvb̃3/b̃5). These observations suggest that the integrins α2b̃1, α5b̃1, α6b̃1, and one or more integrins containing αv are expressed by oocytes. We propose that these integrins may play important roles in fertilization and implantation. © 1993 Wiley-Liss, Inc.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...