scholarly journals Long‐term storage effects in steroid metabolite extracts from baboon ( Papio sp.) faeces – a comparison of three commonly applied storage methods

2013 ◽  
Vol 4 (5) ◽  
pp. 493-500 ◽  
Author(s):  
Urs Kalbitzer ◽  
Michael Heistermann
2015 ◽  
Vol 93 ◽  
pp. 68-77 ◽  
Author(s):  
André Alves de Castro Lopes ◽  
Djalma Martinhão Gomes de Sousa ◽  
Fábio Bueno dos Reis Junior ◽  
Ieda Carvalho Mendes

1977 ◽  
pp. 169-180
Author(s):  
W.G. Tucker ◽  
C.M. Ward ◽  
A.C.W. Davies

2018 ◽  
Vol 32 (1) ◽  
pp. 31-46
Author(s):  
Diana Tirlea ◽  
Carmen Li ◽  
Alwynne B. Beaudoin ◽  
Emily Moffat

Abstract Museums use gelatin capsules to store small objects and specimens, despite limited documentation of their long-term viability. The Royal Alberta Museum (RAM of Canada) uses gelatin capsules to store seeds, bones, and plant material because of their ease of use, transparency, soft-bodied walls, size availability, and low cost. Recently, RAM staff reported damaged capsules from the palaeontology collections. We evaluated 499 capsules used to store specimens accessioned in 1986 and 1988 and investigated capsule properties using Fourier transform infrared spectroscopy and Oddy testing. Only 4.21% of inspected capsules were dented, cracked, and/or fractured. Based on interviews and testing, we determined that damage to capsules likely resulted during handling (i.e., applied force when opening). We conclude that gelatin capsules offer a good, inexpensive method for long-term storage of small, dried specimens in environmentally controlled conditions. Alternatives to gelatin capsules exist, although their pros and cons require evaluation before use. All storage methods require continuous monitoring for signs of container or specimen deterioration.


2021 ◽  
Author(s):  
Lynette Morgan

Abstract The passing of knowledge from generation to generation has been the basis of human existence upon which civilisations have been built and expanded and a process that has accelerated with the use of modern technology. Horticulture is one of the oldest, if not the oldest, forms of knowledge gathering in the arts and sciences. It therefore follows that horticulture was one of the earliest civilising influences in mankind's history (Dixon, 2016). Horticultural skills were essential in early settlements during the dawn of agriculture, for food production and security and also for a wider range of plant materials that enhanced everyday life and contributed to industry. Horticultural knowledge and training has existed for some 10,000 to 20,000 years, with the skills of its practitioners demonstrated through advancing civilisations in both eastern and western countries (Aldous et al., 2014). The first processes in horticultural knowledge transfer were simply informal instruction of how to cultivate soil, grow and harvest crops, which were passed from parent to child and within the members of early societies. Historically gardening has been an integral part of a child's life and played a significant role in how and what they learnt (Relf and Lohr, 2003). These early instructional lessons allowed the passage of knowledge and practical cultivation skills and associated industries such as the manufacture of gardening tools, processing of crops and long-term storage methods.


2003 ◽  
Vol 2003 ◽  
pp. 240-240
Author(s):  
M.A. Shepherd

Knowledge of manure composition is important for farm nutrient management, either if importing manure onto a farm or transferring nutrients around the farm in ‘home produced’ manures. Many factors affect the nutrient content of the manure ready to spread onto the land (Smith & Frost, 2000): dietary input and quality, nutrient losses during housing and storage and additions of bedding material and/or water. There are many reports of average values for manures from conventionally raised livestock (e.g. Anon., 2000 for the U.K.). However, there are less data available for manures produced on organic holdings. It is probable that composition will differ from conventionally produced manures because of differences in diet and manure storage methods (composting and/or long-term storage). Therefore, we aimed to test this under U.K. conditions by analysing cattle manures from organic holdings for comparison with data on conventionally produced manures.


2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Rosha Babapour Mofrad ◽  
Philip Scheltens ◽  
SangYun Kim ◽  
Sungmin Kang ◽  
Young Chul Youn ◽  
...  

Abstract Objective We assessed the performance of plasma amyloid oligomerization tendency (OAβ) as a marker for abnormal amyloid status. Additionally, we examined long-term storage effects on plasma OAβ. Methods We included 399 subjects regardless of clinical diagnosis from the Amsterdam Dementia Cohort and European Medical Information Framework for AD project (age, 63.8 ± 6.6; 44% female). Amyloid status was determined by visual read on positron emission tomography (PET; nabnormal = 206). Plasma OAβ was measured using the multimer detection system (MDS). Long-term storage effects on MDS-OAβ were assessed using general linear models. Associations between plasma MDS-OAβ and Aβ-PET status were assessed using logistic regression and receiver operating characteristics analyses. Correlations between plasma MDS-OAβ and CSF biomarker levels were evaluated using Pearson correlation analyses. Results MDS-OAβ was higher in individuals with abnormal amyloid, and it identified abnormal Aβ-PET with an area under the curve (AUC) of 0.74 (95% CI, 0.67–0.81), especially in samples with a storage duration < 4 years. Combining APOEe4 and age with plasma MDS-OAβ revealed an AUC of 81% for abnormal amyloid PET status (95% CI, 74–87%). Plasma MDS-OAβ correlated negatively with MMSE (r = − 0.29, p < .01) and CSF Aβ42 (r = − 0.20, p < 0.05) and positively with CSF Tau (r = 0.20, p = 0.01). Conclusions Plasma MDS-OAβ combined with APOEe4 and age accurately identifies brain amyloidosis in a large Aβ-confirmed population. Using plasma MDS-OAβ as a screener reduced the costs and number of PET scans needed to screen for amyloidosis, which is relevant for clinical trials. Additionally, plasma MDS-OAβ levels appeared affected by long-term storage duration, which could be of interest for others measuring plasma Aβ biomarkers.


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