The World in a Crucible: Laboratory Practice and Geological Theory at the Beginning of Geology

2009 ◽  
Author(s):  
Sally Newcomb
2020 ◽  
pp. 201010582095248
Author(s):  
Chin Shern Lau ◽  
Noor Ashraf Kamaludin ◽  
Tar Choon Aw

In December 2019, the COVID-19 outbreak began in Wuhan and quickly spread over the world. Hospitals have had to make drastic changes to normal workflows and practices to handle the current pandemic. Laboratories face unique challenges in the management of the investigation of COVID-19. Not only must we consider the safe collection and delivery of samples, but we must also observe the latest guidelines in testing for the virus. We have introduced several new measures in our laboratory to accommodate the collection and testing of samples for COVID-19 from both within the hospital and external screening sites. These changes encompass the pre-analytical (sample collection, packaging, and delivery), analytical (evaluation, handling and preparation of samples) and post-analytical (result reporting within the hospital and to external bodies) aspects of both routine (biochemistry, haematology, transfusion and urine, stool and body fluid testing) and COVID-19 testing, to ensure the safe and efficient testing of any patient samples. In addition, more practical matters, such as laboratory staffing and continuing staff education, have also been changed to ensure the safety and well-being of laboratory staff. With the implementation of new rules and regulations, we seek to safeguard the health of all healthcare workers while streamlining the workflow for the large amount of testing required during this period. As the pandemic continues, new tests (e.g. COVID-19 serology and IL6 testing for prognosis or monitoring) are being requested, requiring even more changes and assay evaluation before implementation. All laboratories must be ready to adapt to these new challenges during the COVID-19 pandemic.


2018 ◽  
Vol 80 (4) ◽  
pp. 285-289
Author(s):  
James McNeil ◽  
Anneke DeLuycker ◽  
Sarah Putman

Experiential learning helps students make connections between different skill sets and allows them to engage in a deeper level of inquiry. To enhance the connection between field and laboratory practice for undergraduate students in our wildlife ecology curriculum, we developed an exercise using environmental DNA (eDNA) analysis. eDNA sampling involves extracting and amplifying the DNA from specific organisms from an environmental sample, rather than from the organisms themselves, and has been rapidly adopted by conservation practitioners around the world. In our activity, students collect water samples from a local pond and process them to detect the presence of American bullfrogs. Practicing this procedure not only introduces them to professional skills they may utilize in their careers, but also helps create context for how laboratory science and field work support each other and can be used to connect to larger issues of conservation, environmental studies, or ecology.


2018 ◽  
Vol 41 ◽  
Author(s):  
Ana Gantman ◽  
Robin Gomila ◽  
Joel E. Martinez ◽  
J. Nathan Matias ◽  
Elizabeth Levy Paluck ◽  
...  

AbstractA pragmatist philosophy of psychological science offers to the direct replication debate concrete recommendations and novel benefits that are not discussed in Zwaan et al. This philosophy guides our work as field experimentalists interested in behavioral measurement. Furthermore, all psychologists can relate to its ultimate aim set out by William James: to study mental processes that provide explanations for why people behave as they do in the world.


2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.


2019 ◽  
Vol 42 ◽  
Author(s):  
Nazim Keven

Abstract Hoerl & McCormack argue that animals cannot represent past situations and subsume animals’ memory-like representations within a model of the world. I suggest calling these memory-like representations as what they are without beating around the bush. I refer to them as event memories and explain how they are different from episodic memory and how they can guide action in animal cognition.


1994 ◽  
Vol 144 ◽  
pp. 139-141 ◽  
Author(s):  
J. Rybák ◽  
V. Rušin ◽  
M. Rybanský

AbstractFe XIV 530.3 nm coronal emission line observations have been used for the estimation of the green solar corona rotation. A homogeneous data set, created from measurements of the world-wide coronagraphic network, has been examined with a help of correlation analysis to reveal the averaged synodic rotation period as a function of latitude and time over the epoch from 1947 to 1991.The values of the synodic rotation period obtained for this epoch for the whole range of latitudes and a latitude band ±30° are 27.52±0.12 days and 26.95±0.21 days, resp. A differential rotation of green solar corona, with local period maxima around ±60° and minimum of the rotation period at the equator, was confirmed. No clear cyclic variation of the rotation has been found for examinated epoch but some monotonic trends for some time intervals are presented.A detailed investigation of the original data and their correlation functions has shown that an existence of sufficiently reliable tracers is not evident for the whole set of examinated data. This should be taken into account in future more precise estimations of the green corona rotation period.


Popular Music ◽  
2003 ◽  
Vol 22 (2) ◽  
pp. 241-245
Author(s):  
Inez H. Templeton
Keyword(s):  
Hip Hop ◽  

Author(s):  
O. Faroon ◽  
F. Al-Bagdadi ◽  
T. G. Snider ◽  
C. Titkemeyer

The lymphatic system is very important in the immunological activities of the body. Clinicians confirm the diagnosis of infectious diseases by palpating the involved cutaneous lymph node for changes in size, heat, and consistency. Clinical pathologists diagnose systemic diseases through biopsies of superficial lymph nodes. In many parts of the world the goat is considered as an important source of milk and meat products.The lymphatic system has been studied extensively. These studies lack precise information on the natural morphology of the lymph nodes and their vascular and cellular constituent. This is due to using improper technique for such studies. A few studies used the SEM, conducted by cutting the lymph node with a blade. The morphological data collected by this method are artificial and do not reflect the normal three dimensional surface of the examined area of the lymph node. SEM has been used to study the lymph vessels and lymph nodes of different animals. No information on the cutaneous lymph nodes of the goat has ever been collected using the scanning electron microscope.


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