LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 291

Search options

  1. Article ; Online: Assessment of the Toxicity of Bottom Sediments from Coastal Areas of Peter the Great Gulf (Sea of Japan)

    Mazur, M. A. / Zhuravel, E. V.

    Contemp. Probl. Ecol.. 2022 Dec., v. 15, no. 6 p.699-708

    2022  

    Abstract: The toxicity of bottom sediments from some areas of the Peter the Great Gulf has been studied using ... The results of the study confirm the decrease in the anthropogenic load on the Peter the Great Gulf, except ...

    Abstract The toxicity of bottom sediments from some areas of the Peter the Great Gulf has been studied using bioassay with embryos and larvae of the sand dollar Scaphechinus mirabilis (Agassiz, 1864). Based on a calculation of the Integrative Toxicity Index (ITI), different inhibition rates of early larval development are identified in elutriate from the bottom sediments. The effects are the most negative in the coastal zone of Vladivostok in Gornostay Bay (Ussuriysky Bay) and in Koz’mina Bay (Nakhodka Bay). Larvae in elutriate from them were characterized by significant anomalies, and the ITI was maximal (ITI = 10). A high percentage of abnormally developed larvae was detected in a sample from Pod’yapol’skogo Bay (ITI = 6.08). The results of the study confirm the decrease in the anthropogenic load on the Peter the Great Gulf, except for local areas adjacent to sea ports and a reclaimed solid domestic waste landfill.
    Keywords Echinoidea ; abnormal development ; bioassays ; coasts ; landfills ; larval development ; toxicity ; Sea of Japan
    Language English
    Dates of publication 2022-12
    Size p. 699-708.
    Publishing place Pleiades Publishing
    Document type Article ; Online
    ZDB-ID 2424032-1
    ISSN 1995-4263 ; 1995-4255
    ISSN (online) 1995-4263
    ISSN 1995-4255
    DOI 10.1134/S1995425522060087
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Article ; Online: Family Tree for Aqueous Organic Redox Couples for Redox Flow Battery Electrolytes: A Conceptual Review.

    Fischer, Peter / Mazúr, Petr / Krakowiak, Joanna

    Molecules (Basel, Switzerland)

    2022  Volume 27, Issue 2

    Abstract: Redox flow batteries (RFBs) are an increasingly attractive option for renewable energy storage, thus providing flexibility for the supply of electrical energy. In recent years, research in this type of battery storage has been shifted from metal-ion ... ...

    Abstract Redox flow batteries (RFBs) are an increasingly attractive option for renewable energy storage, thus providing flexibility for the supply of electrical energy. In recent years, research in this type of battery storage has been shifted from metal-ion based electrolytes to soluble organic redox-active compounds. Aqueous-based organic electrolytes are considered as more promising electrolytes to achieve "green", safe, and low-cost energy storage. Many organic compounds and their derivatives have recently been intensively examined for application to redox flow batteries. This work presents an up-to-date overview of the redox organic compound groups tested for application in aqueous RFB. In the initial part, the most relevant requirements for technical electrolytes are described and discussed. The importance of supporting electrolytes selection, the limits for the aqueous system, and potential synthetic strategies for redox molecules are highlighted. The different organic redox couples described in the literature are grouped in a "family tree" for organic redox couples. This article is designed to be an introduction to the field of organic redox flow batteries and aims to provide an overview of current achievements as well as helping synthetic chemists to understand the basic concepts of the technical requirements for next-generation energy storage materials.
    Language English
    Publishing date 2022-01-16
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules27020560
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.MO 81: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article ; Online: DSD/intersex: historical context and current perspectives.

    Lee, Peter A / Mazur, Tom / Houk, Christopher P

    Journal of pediatric endocrinology & metabolism : JPEM

    2023  Volume 36, Issue 3, Page(s) 234–241

    Abstract: Intersex/Disorders/Differences of sex development conditions have been recognized for millennia. An organized approach was adopted in the 1960-70s using the philosophy that gender identity was fluid and malleable. Consequences of this approach were the ... ...

    Abstract Intersex/Disorders/Differences of sex development conditions have been recognized for millennia. An organized approach was adopted in the 1960-70s using the philosophy that gender identity was fluid and malleable. Consequences of this approach were the lack of disclosure, stigmatization, and excessive surgery to "normalize" the genitalia. Often this led to quality of life issues for those patients. There have been many modifications in approach since then to avoid the problems noted. There is consensus on many of these changes (e.g. disclosure) but continued controversy on others (e.g. the benefits of early surgery). This review summarizes the historical context and the current areas of consensus and controversy.
    MeSH term(s) Humans ; Male ; Female ; Gender Identity ; Quality of Life ; Disorders of Sex Development/surgery ; Consensus ; Genitalia
    Language English
    Publishing date 2023-01-12
    Publishing country Germany
    Document type Review ; Journal Article
    ZDB-ID 1231070-0
    ISSN 2191-0251 ; 0334-018X
    ISSN (online) 2191-0251
    ISSN 0334-018X
    DOI 10.1515/jpem-2022-0582
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 2258: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  4. Article ; Online: Extensive Literature Review of 46, XX Newborns with Congenital Adrenal Hyperplasia (CAH) and Severe Genital Masculinization: Should They be Assigned and Reared Male?

    Mazur, Tom / O'Donnell, Jennifer / Lee, Peter A

    Journal of clinical research in pediatric endocrinology

    2023  

    Abstract: 46, XX individuals born with severely masculinized genitals due to congenital adrenal hyperplasia (CAH) who have been assigned males at birth and reared male can successfully establish a male gender identity/role, find employment, marry, function ... ...

    Abstract 46, XX individuals born with severely masculinized genitals due to congenital adrenal hyperplasia (CAH) who have been assigned males at birth and reared male can successfully establish a male gender identity/role, find employment, marry, function sexually with a female partner, and develop positive mental health status. While there were a few individuals who reportedly did not fare well or who changed gender to female, the majority of those identifying as males appear to have an overall good quality of life. Parental/family support, along with the support of others, appears essential to a positive outcome as a male or as a female. Reasons are given to support why serious consideration of a male gender assignment and rearing, in certain situations, is justified and should be seriously considered. Disorders of Sex Differentiation (DSD) teams should inform parents of the option of male assignment and rearing in 46, XX CAH infants with severe genital masculinization, a rare condition. To provide this option is concordant with the principles of ethics, transparency and with the Endocrine Society Guidelines and the American Academy of Pediatrics' policy of fully informed consent.
    Language English
    Publishing date 2023-12-27
    Publishing country Turkey
    Document type Journal Article
    ZDB-ID 2641608-6
    ISSN 1308-5735 ; 1308-5727
    ISSN (online) 1308-5735
    ISSN 1308-5727
    DOI 10.4274/jcrpe.galenos.2023.2023-10-17
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 6942: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  5. Article ; Online: Family Tree for Aqueous Organic Redox Couples for Redox Flow Battery Electrolytes

    Peter Fischer / Petr Mazúr / Joanna Krakowiak

    Molecules, Vol 27, Iss 560, p

    A Conceptual Review

    2022  Volume 560

    Abstract: Redox flow batteries (RFBs) are an increasingly attractive option for renewable energy storage, thus providing flexibility for the supply of electrical energy. In recent years, research in this type of battery storage has been shifted from metal-ion ... ...

    Abstract Redox flow batteries (RFBs) are an increasingly attractive option for renewable energy storage, thus providing flexibility for the supply of electrical energy. In recent years, research in this type of battery storage has been shifted from metal-ion based electrolytes to soluble organic redox-active compounds. Aqueous-based organic electrolytes are considered as more promising electrolytes to achieve “green”, safe, and low-cost energy storage. Many organic compounds and their derivatives have recently been intensively examined for application to redox flow batteries. This work presents an up-to-date overview of the redox organic compound groups tested for application in aqueous RFB. In the initial part, the most relevant requirements for technical electrolytes are described and discussed. The importance of supporting electrolytes selection, the limits for the aqueous system, and potential synthetic strategies for redox molecules are highlighted. The different organic redox couples described in the literature are grouped in a “family tree” for organic redox couples. This article is designed to be an introduction to the field of organic redox flow batteries and aims to provide an overview of current achievements as well as helping synthetic chemists to understand the basic concepts of the technical requirements for next-generation energy storage materials.
    Keywords energy storage ; flow battery ; aqueous ; organic redox compounds ; electrolyte ; energy density ; Organic chemistry ; QD241-441
    Subject code 540
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Article: 13

    Mazur, Anton / Tolstoy, Peter / Sotiriadis, Konstantinos

    Materials (Basel, Switzerland)

    2022  Volume 15, Issue 6

    Abstract: The hydration kinetics of Portland-limestone cement pastes with organic additives in the form of acetic acid and sodium acetate were studied by using solid- ... ...

    Abstract The hydration kinetics of Portland-limestone cement pastes with organic additives in the form of acetic acid and sodium acetate were studied by using solid-state
    Language English
    Publishing date 2022-03-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma15062004
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  7. Article ; Online: Stanley Paul Leibo – Cryobiologist.

    Mazur, Peter

    Cryobiology

    2014  Volume 68, Issue 3, Page(s) 307–308

    MeSH term(s) Animals ; Cryopreservation/history ; Cryopreservation/methods ; Embryo Research ; Germ Cells/physiology ; History, 20th Century ; History, 21st Century ; Humans ; Reproductive Techniques, Assisted/history ; Semen Preservation/methods ; United States
    Language English
    Publishing date 2014-06-25
    Publishing country Netherlands
    Document type Biography ; Historical Article ; Journal Article ; Portrait
    ZDB-ID 80098-3
    ISSN 1090-2392 ; 0011-2240
    ISSN (online) 1090-2392
    ISSN 0011-2240
    DOI 10.1016/j.cryobiol.2014.04.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 528: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  8. Article ; Online: The Long Path to Our Current Understanding Regarding Care of Children with Differences/Disorders of Sexual Development.

    Witchel, Selma F / Mazur, Tom / Houk, Christopher P / Lee, Peter A

    Hormone research in paediatrics

    2022  Volume 95, Issue 6, Page(s) 608–618

    Abstract: Testes were associated with maleness from antiquity, and ancient societies had fanciful myths about the origins of the sexes and about fetal sexual development. 17th century anatomists developed the concept that mammals developed from eggs and discovered ...

    Abstract Testes were associated with maleness from antiquity, and ancient societies had fanciful myths about the origins of the sexes and about fetal sexual development. 17th century anatomists developed the concept that mammals developed from eggs and discovered sperm in semen; in 1878, Hertwig observed sperm entering eggs (of sea urchins), establishing the cellular basis of sex development. Individuals with atypical genitalia were known clinically in the 17th century, with much debate about their origins, but by the late 19th century it was generally accepted that gonads determined sex, and that sex determined gender role. Testosterone was isolated in 1935, and Alfred Jost showed that both circulating testosterone and diffusible anti-Mullerian hormone were needed for male development. Patients with apparent androgen insensitivity were reported in 1937 and shown to be unresponsive to exogenous androgen by Lawson Wilkins in 1957; androgen receptor mutations were reported in 1989. Steroidogenic errors were associated with differences in sex development (DSDs) starting in the 1940s, and finding mutations in the responsible enzymes explained many forms of hyper- and hypo-androgenism in both sexes. Sex chromosomes were identified in the early 20th century; Y was associated with maleness, and the responsible SRY gene was identified in 1991. Early efforts to manage patients with DSDs were confounded by philosophical perspectives on the relative roles of prenatal biology versus postnatal environment. Approaches to natal sex assignment evolved in the later 20th century and now emphasize a team approach based on data, not guessing, parental involvement, cultural considerations, and the acknowledgement of uncertainty.
    MeSH term(s) Female ; Child ; Animals ; Pregnancy ; Male ; Humans ; Androgens ; Semen ; Sexual Development/genetics ; Disorders of Sex Development/genetics ; Disorders of Sex Development/therapy ; Testosterone ; Mammals
    Chemical Substances Androgens ; Testosterone (3XMK78S47O)
    Language English
    Publishing date 2022-11-29
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2537278-6
    ISSN 1663-2826 ; 1663-2818
    ISSN (online) 1663-2826
    ISSN 1663-2818
    DOI 10.1159/000527042
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 414: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  9. Article ; Online: Motional clustering in supra-τ

    Kolloff, Christopher / Mazur, Adam / Marzinek, Jan K / Bond, Peter J / Olsson, Simon / Hiller, Sebastian

    Journal of magnetic resonance (San Diego, Calif. : 1997)

    2022  Volume 338, Page(s) 107196

    Abstract: Biomolecular spin relaxation processes, such as the NOE, are commonly modeled by rotational ... ...

    Abstract Biomolecular spin relaxation processes, such as the NOE, are commonly modeled by rotational τ
    MeSH term(s) Cluster Analysis ; Magnetic Resonance Spectroscopy/methods ; Molecular Dynamics Simulation ; Motion ; Nuclear Magnetic Resonance, Biomolecular ; Proteins/chemistry
    Chemical Substances Proteins
    Language English
    Publishing date 2022-03-23
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1469665-4
    ISSN 1096-0856 ; 1557-8968 ; 1090-7807 ; 0022-2364
    ISSN (online) 1096-0856 ; 1557-8968
    ISSN 1090-7807 ; 0022-2364
    DOI 10.1016/j.jmr.2022.107196
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  10. Article ; Online: Internal Vibrations of Pyridinium Cation in One-Dimensional Halide Perovskites and the Corresponding Halide Salts.

    Samsonova, Anna Yu / Mikheleva, Alena Yu / Bulanin, Kirill M / Selivanov, Nikita I / Mazur, Anton S / Tolstoy, Peter M / Stoumpos, Constantinos C / Kapitonov, Yury V

    Molecules (Basel, Switzerland)

    2023  Volume 29, Issue 1

    Abstract: We investigate vibrations of the pyridinium cation ... ...

    Abstract We investigate vibrations of the pyridinium cation PyH
    Language English
    Publishing date 2023-12-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules29010078
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.MO 81: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top