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Teaching massive, open, online, courses (MOOCs): Tales from the front line

science instructors

Lowenthal P, Perkins R, Snelson C.
GSID: Fq2m1Klmw1gJ
P Lowenthal, C Snelson, R Perkins - … Review of Research in Open and …, 2018 - erudit.org

Very little research has been conducted about what it is like to teach a MOOC. Given this, a mixed methods study, involving a survey of 186 MOOC instructors and 15 follow-up …

Getting involved in research.

Midwives chronicle

Perkins ER.
PMID: 3849666
Midwives Chron. 1985 Aug;98(1171):227-30.

No abstract available.

A heuristic approach to determine an appropriate number of topics in topic modeling.

BMC bioinformatics

Zhao W, Chen JJ, Perkins R, Liu Z, Ge W, Ding Y, Zou W.
PMID: 26424364
BMC Bioinformatics. 2015;16:S8. doi: 10.1186/1471-2105-16-S13-S8. Epub 2015 Sep 25.

BACKGROUND: Topic modelling is an active research field in machine learning. While mainly used to build models from unstructured textual data, it offers an effective means of data mining where samples represent documents, and different biological endpoints or omics...

Application of nanoscale packed capillary liquid chromatography (75 μm id) and capillary zone electrophoresis/electrospray ionization mass spectrometry to the analysis of macrolide antibiotics.

Journal of the American Society for Mass Spectrometry

Parker CE, Perkins JR, Tomer KB, Shida Y, O'Hara K, Kono M.
PMID: 24234500
J Am Soc Mass Spectrom. 1992 Jul;3(5):563-74. doi: 10.1016/1044-0305(92)85034-H.

Nanoscale separation techniques, nanoscale packed capillary columns (75 μm id), and capillary zone electrophoresis (CZE), on-line with electrospray mass spectrometry (ESI/MS), were applied to the separation of a series of ten macrolide antibiotics. Both techniques use sub-microliter-per-minute flow rates...

Real-time ultrasonic biparietal diameter of second trimester Suffolk and Finn sheep fetuses and prediction of gestational age.

Theriogenology

Haibel GK, Perkins NR.
PMID: 16726732
Theriogenology. 1989 Nov;32(5):863-9. doi: 10.1016/0093-691x(89)90474-3.

Six Suffolk fetuses of known gestational age were examined every other day from Day 43 to Day 96 of gestation using transabdominal real-time ultrasound. Biparietal diameter (BPD) was measured on symmetrical fetal head images. The relationship between days gestational...

Pulsed-field gel electrophoresis typing of Campylobacter fetus subsp. fetus isolated from sheep abortions in New Zealand.

New Zealand veterinary journal

Mannering SA, West DM, Fenwick SG, Marchant RM, Perkins NR, O'connell K.
PMID: 15768136
N Z Vet J. 2004 Dec;52(6):358-63. doi: 10.1080/00480169.2004.36452.

AIMS: To genotype Campylobacter fetus subsp. fetus isolates cultured from sheep abortions submitted to diagnostic laboratories in New Zealand during the year 2000 breeding season. To compare the types found nationally with those found in the Hawke's Bay region...

Enzymeimmunoassay of oestrone sulphate concentrations in faeces for non-invasive pregnancy determination in mares.

New Zealand veterinary journal

Henderson KM, Perkins NR, Wards RL, Stewart JI.
PMID: 16032072
N Z Vet J. 1999 Apr;47(2):61-6. doi: 10.1080/00480169.1999.36112.

AIM: To determine the suitability of measuring faecal oestrone sulphate (OS) by enzymeimmunoassay as a means of determining pregnancy status in mares bred under New Zealand conditions.METHODS: An antibody-coated microtitre plate-based enzymeimmunoassay was used to determine the concentration of...

Musculoskeletal responses of 2-year-old Thoroughbred horses to early training. 1. Study design, and clinical, nutritional, radiological and histological observations.

New Zealand veterinary journal

Firth EC, Rogers CW, Perkins NR, Anderson BH, Grace ND.
PMID: 15768122
N Z Vet J. 2004 Oct;52(5):261-71. doi: 10.1080/00480169.2004.36438.

AIMS: This is the first in a series of papers reporting studies in 2-year-old Thoroughbred racehorses that aimed to determine the response of musculoskeletal tissues to early training on grass and sand racetracks. In this paper, the experimental set-up...

Investigation of reproducibility of differentially expressed genes in DNA microarrays through statistical simulation.

BMC proceedings

Fan X, Shi L, Fang H, Harris S, Perkins R, Tong W.
PMID: 19278560
BMC Proc. 2009 Mar 10;3:S4. doi: 10.1186/1753-6561-3-s2-s4.

Recent publications have raised concerns about the reliability of microarray technology because of the lack of reproducibility of differentially expressed genes (DEGs) from highly similar studies across laboratories and platforms. The rat toxicogenomics study of the MicroArray Quality Control...

A silica sol-gel design strategy for nanostructured metallic materials.

Nature materials

Warren SC, Perkins MR, Adams AM, Kamperman M, Burns AA, Arora H, Herz E, Suteewong T, Sai H, Li Z, Werner J, Song J, Werner-Zwanziger U, Zwanziger JW, Grätzel M, DiSalvo FJ, Wiesner U.
PMID: 22426457
Nat Mater. 2012 Mar 18;11(5):460-7. doi: 10.1038/nmat3274.

Batteries, fuel cells and solar cells, among many other high-current-density devices, could benefit from the precise meso- to macroscopic structure control afforded by the silica sol-gel process. The porous materials made by silica sol-gel chemistry are typically insulators, however,...

Technical reproducibility of genotyping SNP arrays used in genome-wide association studies.

PloS one

Hong H, Xu L, Liu J, Jones WD, Su Z, Ning B, Perkins R, Ge W, Miclaus K, Zhang L, Park K, Green B, Han T, Fang H, Lambert CG, Vega SC, Lin SM, Jafari N, Czika W, Wolfinger RD, Goodsaid F, Tong W, Shi L.
PMID: 22970228
PLoS One. 2012;7(9):e44483. doi: 10.1371/journal.pone.0044483. Epub 2012 Sep 07.

During the last several years, high-density genotyping SNP arrays have facilitated genome-wide association studies (GWAS) that successfully identified common genetic variants associated with a variety of phenotypes. However, each of the identified genetic variants only explains a very small...

Missense Gamma-Aminobutyric Acid Receptor Polymorphisms Are Associated with Reaction Time, Motor Time, and Ethanol Effects .

Frontiers in cellular neuroscience

García-Martín E, Ramos MI, Cornejo-García JA, Galván S, Perkins JR, Rodríguez-Santos L, Alonso-Navarro H, Jiménez-Jiménez FJ, Agúndez JAG.
PMID: 29445327
Front Cell Neurosci. 2018 Jan 31;12:10. doi: 10.3389/fncel.2018.00010. eCollection 2018.

No abstract available.

Showing 1 to 12 of 114 entries