نتایج جستجو برای: aquarium

تعداد نتایج: 1551  

2017
Dominik C. Meyer Christian Gerber Filippo Familiari

The simultaneous arthroscopic exposure of the subacromial and intra-articular space of the shoulder is challenging in the presence of only partial-thickness rotator cuff tears. We present our experience and method of entering the joint through the opened rotator cuff interval from an anterosuperior portal between the coracoid process and anterior acromion. With moderate (approximately 30°) abdu...

2007

The reef hobby, that part of the aquarium hobby that has arguably experienced the most change, is ironically also an example of the axiom that the more things change the more they remain the same. During the past 10 years we have seen almost constant change in reefkeeping practices, and, in many instances, complete reversal of opinions as to which techniques or practices are the best. We have g...

Journal: :محیط زیست طبیعی 0
معصومه آریایی کارشناس ارشد محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه تهران، ایران امیرحسین حمیدیان استادیار گروه محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه تهران، ایران سهیل ایگدری استادیار گروه شیلات، دانشکدۀ منابع طبیعی، دانشگاه تهران، ایران سهراب اشرفی استادیار گروه محیط زیست، دانشکدۀ منابع طبیعی، دانشگاه تهران، ایران

abstractthe purpose of this study was to compare the heavy metal uptake of cd in liver tissue of endemic fish aphanius sophiae in the saltwater eshtehard of karaj and fresh water in laboratory conditions, the relationship between cadmium accumulation in the liver, the effect of salinity and different concentrations of cd uptake. sampling did randomly from salt river in the spring and summer 201...

Journal: :Educational Technology & Society 2011
Swaroop Vattam Ashok K. Goel Spencer Rugaber Cindy E. Hmelo-Silver Rebecca Jordan Steven Gray Suparna Sinha

Artificial intelligence research on creative design has led to Structure-Behavior-Function (SBF) models that emphasize functions as abstractions for organizing understanding of physical systems. Empirical studies on understanding complex systems suggest that novice understanding is shallow, typically focusing on their visible structures and showing minimal understanding of their functions and i...

2015
Monika Tarkowska-Kukuryk Wojciech Pęczuła Tomasz Mieczan Wojciech Płaska Jacek Rechulicz

The role of two submerged macrophyte species (Ceratophyllum demersum and Potamogeton pectinatus) as biological factor affecting concentrations of P and chlorophyll a concentrations was tested under laboratory conditions. In general, after four weeks exposition, the significant reduction of TP, P-PO4 and chlorophyll a was observed in all experimental variants (aquaria with P. pectinatus, C. deme...

2000
Doug Bryan Anatole Gershman

The advent of the Web has brought an unprecedented amount of information together with a large, diverse set of users. Online users are performing a wider variety of tasks than ever before. For example, not only is the Web being used to search conventional databases like Lexis/Nexus, it is also being used to broker Beanie Babies. Today’s common information seeking metaphors (i.e., keyword search...

2010
V Noaman Y Chelongar AH Shahmoradi

Argulus foliaceus (Crustacea: Branchiura), or the fish louse, is an ectoparasite of the skin or gill of the fresh water fish species. Clinical signs in infected fish include scratching on aquarium walls, erratic swimming, and poor growth. It causes pathological changes due to direct tissue damage and secondary infections. In the present study, lionhead goldfish (Carassius auratus), taken from a...

Journal: :Zoo biology 2014
Lori L Timm Joshua E Carter Joshua Frey James Prappas R J David Wells

The common shovelnose ray (Glaucostegus typus) is a poorly studied species of the Rhinobatidae family that occurs throughout the Indo-West Pacific. Although common in aquariums throughout the United States, there are currently no records of captive birth events. In 2013, a female common shovelnose ray housed at the Downtown Aquarium in Houston, Texas, USA gave birth to eleven pups. Although all...

Journal: :Journal of Business and Information Systems (e-ISSN: 2685-2543) 2019

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