LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 44

Search options

  1. Article ; Online: Designing Your Ambulatory Endoscopy Center: Lessons from Accreditation.

    Edelman, Deborah / Adachi, Noel / Chapman, Frank J / Kim, Lawrence S

    Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association

    2022  Volume 20, Issue 10, Page(s) 2170–2174

    MeSH term(s) Accreditation ; Endoscopy, Gastrointestinal ; Humans ; United States
    Language English
    Publishing date 2022-07-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2119789-1
    ISSN 1542-7714 ; 1542-3565
    ISSN (online) 1542-7714
    ISSN 1542-3565
    DOI 10.1016/j.cgh.2022.07.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 5836: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.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.

  2. Article: Spawning Parvocalanus crassirostris at a high adult density: Explaining low adult population numbers and means for improving their intensive culture

    Torres Valencia, Gustavo Adolfo / Merino, German E. / Prieto-Guevara, Martha Janeth / Acosta Portillo, Jhon E. / López Arboleda, Jaglin E. / Chapman, Frank A.

    Elsevier B.V. Aquaculture. 2022 Jan. 15, v. 546

    2022  

    Abstract: In calanoid copepods, intensive culture is preferred, but currently, densities do not exceed a few adults per milliliter. Several explanations exist, but none have allowed increasing the density of adults. This study proposes a new explanation for the ... ...

    Abstract In calanoid copepods, intensive culture is preferred, but currently, densities do not exceed a few adults per milliliter. Several explanations exist, but none have allowed increasing the density of adults. This study proposes a new explanation for the problem of adult density in intensive culture, using the copepod Parvocalanus crassirostris as a model. First: eggs (2 h old) were supplied to adults kept at 20 adults mL⁻¹ in 1 L containers with and without microalgae; constant aeration was supplied to determine egg survival to damage caused by the adults. Different samples were taken up to 175 min. Second: A high-density spawning test (5–80 adults mL⁻¹) was performed, using shallow depth (2.5 cm) and supersaturation level of oxygen for rapid egg separation and sufficient oxygen for adults, respectively. The SEP (egg female⁻¹ day⁻¹) and REP (egg mL⁻¹ day⁻¹) were determined. Third: two systems of continuous egg harvesting, filtration and sedimentation, were evaluated under a high density of adults culture (10 adults mL⁻¹). The adults of P. crassirostris quickly damaged the eggs, but the presence of food reduces the damage caused. Adults presented high SEP up to 10 adults mL⁻¹; however, REP increased significantly to more than 170 eggs mL⁻¹ day-1 using densities of 20 and 30 adults mL⁻¹ (p <.05). A continuous harvesting system by filtration generated deformation of the eggs and a lower SEP and REP compared to the passive harvesting system by sedimentation (p <.01). The present study showed that even P. crassirostris, considered herbivore copepod, can damage its eggs. The fragility of newly spawned eggs (without hardened chorion) can generate difficulties when increasing adult density in culture. This new explanation contributes to the generation of new egg harvesting strategies in calanoid copepods of aquaculture importance.
    Keywords Copepoda ; adults ; aeration ; aquaculture ; chorion ; deformation ; eggs ; filtration ; herbivores ; microalgae ; models ; oxygen
    Language English
    Dates of publication 2022-0115
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 185380-6
    ISSN 0044-8486 ; 0044-8516
    ISSN 0044-8486 ; 0044-8516
    DOI 10.1016/j.aquaculture.2021.737347
    Database NAL-Catalogue (AGRICOLA)

    Full text online

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 3275: 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.

    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.

  3. Article ; Online: Guidance for resuming GI endoscopy and practice operations after the COVID-19 pandemic.

    Hennessy, Bruce / Vicari, Joseph / Bernstein, Brett / Chapman, Frank / Khaykis, Inessa / Littenberg, Glenn / Robbins, David

    Gastrointestinal endoscopy

    2020  Volume 92, Issue 3, Page(s) 743–747.e1

    MeSH term(s) Appointments and Schedules ; Betacoronavirus ; COVID-19 ; Coronavirus Infections/diagnosis ; Coronavirus Infections/prevention & control ; Coronavirus Infections/transmission ; Endoscopy, Gastrointestinal ; Humans ; Infection Control/organization & administration ; Pandemics/prevention & control ; Personal Protective Equipment ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/prevention & control ; Pneumonia, Viral/transmission ; SARS-CoV-2
    Keywords covid19
    Language English
    Publishing date 2020-05-11
    Publishing country United States
    Document type Editorial
    ZDB-ID 391583-9
    ISSN 1097-6779 ; 0016-5107
    ISSN (online) 1097-6779
    ISSN 0016-5107
    DOI 10.1016/j.gie.2020.05.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.B 283: 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)
    Zs.MO 519: 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.

  4. Article ; Online: Increased survival of larval spotted rose snapper Lutjanus guttatus (Steindachner, 1869) when fed with the copepod Cyclopina sp. and Artemia nauplii

    Burbano, Maria F. / Torres, Gustavo A. / Prieto, Martha J. / Gamboa, Jesús H. / Chapman, Frank A.

    Elsevier B.V. Aquaculture. 2020 Mar. 30, v. 519, p. 734912

    2020  , Page(s) 734912

    Abstract: This study evaluated the survival, growth, and larval quality of the spotted rose snapper L. guttatus during a critical developmental period when mass mortalities often occur (at 15 to 24 days post-hatch, DPH), from eating live food to beginning of ... ...

    Abstract This study evaluated the survival, growth, and larval quality of the spotted rose snapper L. guttatus during a critical developmental period when mass mortalities often occur (at 15 to 24 days post-hatch, DPH), from eating live food to beginning of formulated feed consumption. At first feeding, a large batch of snapper larvae was fed a mixture of the microalgae Tetraselmis and Isochrysis, the rotifer B. plicatilis, and the copepod P. crassirostris. Thereafter (15 DPH), a total of 1800 larvae (5.3 ± 1.3 mm total length) were randomly selected from the large batch and assigned to three dietary treatment groups in 300 L triplicate tanks at a density of 200 larvae tank⁻¹: Group 1 was fed the copepod Cyclopina sp. (CY) only, but they (the copepods) were an assortment of life stages and sizes. Group 2 was fed a mixture of both copepods (CY) and enriched Artemia nauplii (Mx), and Group 3 was fed only enriched Artemia sp. nauplii (AR). Larval quality was evaluated as the tolerance of 24 DPH larvae to a short-term (1.5 min) air exposure stress test. The percent survival of larvae was significantly (p < 0.05) higher when they were fed copepods (73 ± 4%) or the mixed combination of copepods and Artemia nauplii (68 ± 15%) when compared to the larvae fed only Artemia (45 ± 9%). Likewise, the larvae that were fed a diet containing copepods were considered of higher quality than larvae feeding only on Artemia; as the percentages of the larvae that survived the air exposure stress tests were 75 ± 5% and 72.5 ± 7%, respectively of those fed the CY and Mx diets, and significantly (p < 0.05) higher when compared to 55 ± 7% survival of the larvae fed Artemia only. No significant differences (p > 0.05), were observed in lengths measurements of the larvae fed the different diets. The higher survival estimates found in our studies were attributed primarily to the prominent jerky swimming movement of the copepods, and the wide variety of sizes in the copepod culture available for the snapper larvae to prey on, thus increasing capture of the copepods and reducing cannibalism.
    Keywords Pargo lunarejo ; Cannibalism ; Survival ; Growth ; Larval quality
    Language English
    Dates of publication 2020-0330
    Size p. 734912
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 185380-6
    ISSN 0044-8486 ; 0044-8516
    ISSN 0044-8486 ; 0044-8516
    DOI 10.1016/j.aquaculture.2019.734912
    Database NAL-Catalogue (AGRICOLA)

    Full text online

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 3275: 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.

    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.

  5. Article: Spawning of calanoid copepod Acartia tonsa at low temperature and high salinity improves hatch success for cold-stored egg production

    Torres, Gustavo A / Merino, German E / Prieto-Guevara, Martha J / Acosta Portillo, John E / Gamboa, Jesús H / Imués, Marco A / Chapman, Frank A

    Aquaculture. 2021 Jan. 15, v. 530

    2021  

    Abstract: When copepod Acartia tonsa is isolated from tropical populations, the produced eggs exhibit low hatching after long-term storage, a critical aspect that makes their use difficult in aquaculture. In three experiments, this study spawned adults of A. tonsa ...

    Abstract When copepod Acartia tonsa is isolated from tropical populations, the produced eggs exhibit low hatching after long-term storage, a critical aspect that makes their use difficult in aquaculture. In three experiments, this study spawned adults of A. tonsa cultured at different salinities and temperatures. The eggs were collected to determine hatching success of fresh and cold-stored eggs (HS-C). Experiment 1: Adults spawned under four combinations of two temperatures (18 and 28 °C) and two salinities (18 and 30 PSU) to determine the HS-C from 0 (fresh eggs) to 4 weeks of storage. Experiment 2: Adults spawned under three combinations of temperatures (18, 23, and 29 °C) and 30 PSU to determine the HS-C (from 0 to 4 weeks of storage). Experiment 3: Adults spawned under 18 °C and 30 PSU to determine the HS-C (from 0 to 8 weeks of storage). All adults were distributed in triplicate in 2 L containers at 0.5 individual mL⁻¹ and fed with the Rhodomonas salina microalgae at 2000 μg C L⁻¹. In every experimental unit, the eggs were collected and stored at 3 ± 1 °C. In fresh eggs (0 weeks of storage), most of the treatments showed great hatching (> 90%). However, low salinity and high temperature resulted in a significantly (p < .05) lower hatch (81%) of the fresh eggs. The combination of 18 °C and 30 PSU produced better hatching (p < .05) in eggs stored for 2 and 4 weeks (85% and 73%, respectively), followed by 18 °C and 18 PSU (65% and 41%), 28 °C and 30 PSU (50% and 17%) and 28 °C and 18 PSU (11% and 2%). Stored quiescent eggs were strongly affected by the temperature and salinity of the culture environment. On the other hand, fresh (subitaneous) eggs do not depend so much of these variables. Therefore, the criteria to select what salinity and temperature combination is best to raise adults for egg production will depend on whether the eggs will be used for immediate-use (fresh) or storage.
    Keywords Acartia tonsa ; Rhodomonas ; adults ; aquaculture ; cold storage ; containers ; egg production ; eggs ; hatching ; microalgae ; salinity ; spawning ; storage time ; temperature
    Language English
    Dates of publication 2021-0115
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 185380-6
    ISSN 0044-8486 ; 0044-8516
    ISSN 0044-8486 ; 0044-8516
    DOI 10.1016/j.aquaculture.2020.735725
    Database NAL-Catalogue (AGRICOLA)

    Full text online

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 3275: 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.

    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: Guidance for Resuming Gi Endoscopy and Practice Operations after the Covid-19 Pandemic

    Hennessy, Bruce / Vicari, Joseph / Bernstein, Brett / Chapman, Frank / Khaykis, Inessa / Littenberg, Glenn / Robbins, David

    Gastrointest. endosc

    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #32437712
    Database COVID19

    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.

  7. Article ; Online: Guidance for resuming GI endoscopy and practice operations after the COVID-19 pandemic

    Hennessy, Bruce / Vicari, Joseph / Bernstein, Brett / Chapman, Frank / Khaykis, Inessa / Littenberg, Glenn / Robbins, David

    Gastrointestinal Endoscopy

    2020  Volume 92, Issue 3, Page(s) 743–747.e1

    Keywords Gastroenterology ; Radiology Nuclear Medicine and imaging ; covid19
    Language English
    Publisher Elsevier BV
    Publishing country us
    Document type Article ; Online
    ZDB-ID 391583-9
    ISSN 1097-6779 ; 0016-5107
    ISSN (online) 1097-6779
    ISSN 0016-5107
    DOI 10.1016/j.gie.2020.05.006
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.B 283: 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)
    Zs.MO 519: 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.

  8. Article: The effects of every-other-day feeding on the growth performance of yearling stellate sturgeon, Acipenser stellatus

    Lane, Christian / Livengood, Elisa J. / Miles, Richard D. / Chapman, Frank A.

    Journal of applied aquaculture

    2018  Volume 30, Issue 4, Page(s) 39

    Language English
    Document type Article
    ZDB-ID 1089577-2
    ISSN 1045-4438
    Database Current Contents Nutrition, Environment, Agriculture

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 5584: 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.

    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.

  9. Article: The effects of every-other-day feeding on the growth performance of yearling stellate sturgeon, Acipenser stellatus

    Lane, Christian / Livengood, Elisa J. / Miles, Richard D. / Chapman, Frank A.

    Journal of applied aquaculture

    2018  Volume 30, Issue 1, Page(s) 39

    Language English
    Document type Article
    ZDB-ID 1089577-2
    ISSN 1045-4438
    Database Current Contents Nutrition, Environment, Agriculture

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 5584: 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.

    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.

  10. Article: Food Transit Time and Site of Absorption of Nutrients in Gulf of Mexico Sturgeon

    Venero, Jesus A / Miles, Richard D / Chapman, Frank A

    North American journal of aquaculture. 2015 July 3, v. 77, no. 3

    2015  

    Abstract: We determined that the average gastrointestinal tract length of 8–11-month-old Gulf of Mexico Sturgeon Acipenser oxyrinchus desotoi , a subspecies of Atlantic Sturgeon A. oxyrinchus , was approximately 82% of its fork length. The time required for ... ...

    Abstract We determined that the average gastrointestinal tract length of 8–11-month-old Gulf of Mexico Sturgeon Acipenser oxyrinchus desotoi , a subspecies of Atlantic Sturgeon A. oxyrinchus , was approximately 82% of its fork length. The time required for digesta to pass through the digestive tract was approximately 32 h. Defecation was initiated between 8 and 16 h after feeding. The main site for digestion and absorption of energy, dry matter, and crude protein was the spiral valve region of the intestine, as determined by apparent digestibility coefficients. By the time digesta had reached the lower spiral valve most of the energy, dry matter, and crude protein had been absorbed. Morphological examination of the intestine, including the spiral valve region, revealed a highly developed mucosal surface area, which is essential for efficient nutrient digestion and absorption during the extended period required for the digesta to move through the digestive tract. Received November 19, 2014; accepted January 25, 2015
    Keywords Acipenser oxyrinchus ; absorption ; crude protein ; defecation ; digesta ; digestibility ; digestion ; digestive tract ; energy ; intestines ; nutrients ; sturgeon ; surface area ; Gulf of Mexico
    Language English
    Dates of publication 2015-0703
    Size p. 275-280.
    Publishing place Taylor & Francis
    Document type Article
    ZDB-ID 1482260-x
    ISSN 1548-8454 ; 1522-2055
    ISSN (online) 1548-8454
    ISSN 1522-2055
    DOI 10.1080/15222055.2015.1017129
    Database NAL-Catalogue (AGRICOLA)

    Full text online

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 3629: 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.

    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.

To top