scholarly journals Swallowable Sponge Cell Sampling Device

2020 ◽  
Author(s):  
Keyword(s):  
Sponge Cell ◽  
Sampling Device

A Stationary Packer System for Layerwise Groundwater Sampling in Monitoring Wells – Technique and Results

1991 ◽  
Vol 23 (1-3) ◽  
pp. 545-553
Author(s):  
M. Rödelsperger ◽  
U. Rohmann ◽  
F. Frimmel
Keyword(s):  
Groundwater Discharge ◽  
Groundwater Table ◽  
Experimental Results ◽  
Concentration Profiles ◽  
Sampling Device ◽  
Local Conditions ◽  
Monitoring Wells ◽  
Deep Aquifers ◽  
Groundwater Sampling ◽  
Groundwater Samples

A sampling device was designed as a stationary equipment for deep monitoring wells in order to obtain representative groundwater samples from different layers of the aquifer. The device consists of several packer units which can be combined at variable distances, allowing adaption to the local conditions of the aquifer and of the well. The pumps are situated below the groundwater table. Each of the drawing tubes ends between two packers at the concerning depth. Experimental results demonstrate the importance of the application of a stationary packer system instead of a mobile doublepacker in deep aquifers of inhomogeneous structure. Examples of concentration profiles obtained from layerwise groundwater sampling are given and a technique for selective groundwater discharge is described.

Measuring Earwax Cortisol Concentration Using a Non-Stressful Method (Preprint)

2020 ◽  
Author(s):  
Andrés Herane-Vives
Keyword(s):  
Cortisol Level ◽  
Local Stress ◽  
Extraction Methods ◽  
Cortisol Concentration ◽  
The Novel ◽  
Sampling Device ◽  
Related Factors ◽  
Novel Device ◽  
Cortisol Levels ◽  
The Right

BACKGROUND “Short-term” samples are not the most appropriate for reflecting Chronic Cortisol Concentration (CCC). Although hair is used for reflecting the systemic cortisol level over “long-term”, its use appears clinically problematic. Local stress and non-stress related factors may release a circumscribed cortisol secretion that is accumulated in hair. Non-stressful earwax extraction methods may provide a more accurate specimen to measure CCC. OBJECTIVE Correlate cortisol levels using hair, serum and earwax samples METHODS Earwax from both ears of 37 controls were extracted using a clinical procedure commonly associated with local pain. One month later, earwax from the left ear side was extracted using the same procedure, and earwax from the right ear side was comfortably extracted, using an earwax self-sampling device. Participants also provided one centimetre of hair that represented the retrospective month of cortisol output, and one serum sample that reflected the effect of systemic stressors on cortisol levels. Earwax (ECC), Hair (HCC) and Serum (SCC) Cortisol Concentration were correlated and compared. Confounders´ effect on cortisol levels were studied. RESULTS Serum showed the largest and hair the lowest cortisol concentration (p<0.01). Left-ECC was larger than Right-ECC (p=0.03). Right-ECC was the only sample unaffected by confounders (all p>0.05). Right-ECC and HCC showed the only significant association (r=0.39; p=0.03). CONCLUSIONS The self-sampling device did not represent a local stressor for the ceruminous glands. It provided the cortisol level with the least likely to be affected by confounding factors over the previous month. ECC using the novel device may constitute another accurate, but more suitable and affordable specimen for measuring CCC.

scholarly journals Salivette, a relevant saliva sampling device for SARS-CoV-2 detection

2021 ◽  
Vol 13 (1) ◽  
pp. 1920226
Author(s):  
Monique Melo Costa ◽  
Nicolas Benoit ◽  
Jerome Dormoi ◽  
Remy Amalvict ◽  
Nicolas Gomez ◽  
...  
Keyword(s):  
Sampling Device

scholarly journals Intraductal Tissue Sampling Device Designed for the Biliary Tract

2021 ◽  
Vol 9 ◽  
pp. 1-12
Author(s):  
Malay S. Patel ◽  
Matthew D. Carson ◽  
Eric J. Seibel ◽  
Lucas R. Meza
Keyword(s):  
Biliary Tract ◽  
Tissue Sampling ◽  
Sampling Device

Assessment of marine microplastics in floating plastic debris using a fixed sampling device: the example of South Juhu creek, Mumbai coast, India

2021 ◽  
Vol 25 (1) ◽  
Author(s):  
S. Manickavasagam ◽  
S. P. Shukla ◽  
Saurav Kumar ◽  
Kundan Kumar ◽  
Rathi Bhuvaneswari
Keyword(s):  
Sampling Device ◽  
Plastic Debris

scholarly journals Cell cycle analysis of primary sponge cell cultures

2011 ◽  
Vol 47 (4) ◽  
pp. 302-311 ◽  
Author(s):  
Klaske J. Schippers ◽  
Dirk E. Martens ◽  
Shirley A. Pomponi ◽  
René H. Wijffels
Keyword(s):  
Cell Cycle ◽  
Cell Cultures ◽  
Cell Cycle Analysis ◽  
Sponge Cell

Ease, Comfort, and Performance of the HerSwab Vaginal Self-Sampling Device for the Detection of Chlamydia trachomatis and Neisseria gonorrhoeae

2016 ◽  
Vol 43 (2) ◽  
pp. 125-129 ◽  
Author(s):  
Manuel Arias ◽  
Dan Jang ◽  
Jodi Gilchrist ◽  
Kathy Luinstra ◽  
Jenny Li ◽  
...  
Keyword(s):  
Chlamydia Trachomatis ◽  
Neisseria Gonorrhoeae ◽  
Sampling Device ◽  
And Performance
Sign in / Sign up

Export Citation Format

Share Document