1,720,958 research outputs found
Resources from "Promoting farm advisor engagement and action toward the improvement of dairy cattle lameness"
No full textResources and Risk assessments provided to study participants in a lameness Extension project. These resources are associated with the JDS article, "Promoting farm advisor engagement and action toward the improvement of dairy cattle lameness."This work was supported by the Minnesota State Legislature through the Rapid Agricultural Response Fund managed by the Minnesota Agricultural Experiment StationWynands, Erin; Cramer, Gerard. (2022). Resources from "Promoting farm advisor engagement and action toward the improvement of dairy cattle lameness". Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/226886
Data and Code for Hoof Lesion Detection in Lactating Holsteins: Part II. Development and On-Farm Validation of a Predictive Classification Model Using Autonomous Camera System Data Compared to Passive Surveillance
No full textData and code for evaluating a machine learning model and external validation for detecting cows with hoof lesions.Swartz, Drew; Rendahl, Aaron; Cramer, Gerard. (2026). Data and Code for Hoof Lesion Detection in Lactating Holsteins: Part II. Development and On-Farm Validation of a Predictive Classification Model Using Autonomous Camera System Data Compared to Passive Surveillance. Retrieved from the Data Repository for the University of Minnesota (DRUM), https://hdl.handle.net/11299/278952
Observational study evaluating the association of hoof trimming with dairy cattle behavior and milk yield in Canada and the United Kingdom
No full textData and code for paperThe study describes associations between preventive hoof trimming (HT) of nonlesion dairy cows and resting
time, step activity, and milk yield on 4 commercial herds. Differences between the baseline values (5-day
average before HT) for all outcomes and values on the day of HT and the 7 days following HT were analyzed.
Resting time and activity had an inverse relationship, with resting time decreasing and activity increasing on
the day of HT compared with baseline. Average resting time across the 7-day post-HT was greater on most
farms than baseline. Milk yield changes on the day of HT were highly variable by farm, but all farms had an
average decrease in yield (0.6–1.3 kg/d) across the 7 days post-HT. Results were farm dependent, possibly due
to differences in the HT process and time away from pen, requiring further study.Stoddard, Grant; Cramer, Gerard. (2024). Observational study evaluating the association of hoof trimming with dairy cattle behavior and milk yield in Canada and the United Kingdom. Retrieved from the University Digital Conservancy, https://doi.org/10.3168/jdsc.2023-0493
Data for Diagnostic accuracy of a bovine specific electronic beta-hydroxybutyrate handheld meter in fresh blood and stored serum samples
No full textketometers.csv: ID of cattle sampled, BHB concentration measurements using Nova Vet, Precision Xtra, laboratory assay, and Nova Vet in serum at five different slopes.
repeatibility_NVet.csv: BHB concentration measured 20 times in 3 cows with the Nova Vet meter at two different days and using different batches of testing strips.
repeatibility_PXtra.csv: BHB concentration measured 20 times in 3 cows with the Precision Xtra meter at two different days and using different batches of testing strips.
interference.nv.csv: BHB concentration measured with Nova Vet meter using tubes containing both anticoagulants LI-HEP and K-EDTA20, and without anticoagulant.
interference.px.csv: BHB concentration measured with Precision Xtra meter using tubes containing both anticoagulants LI-HEP and K-EDTA20, and without anticoagulant.This study aims to evaluate the diagnostic accuracy of the bovine specific beta-hydroxybutyrate (BHB) meter Nova Vet (NVET). We evaluated the accuracy and agreement of the NVET in fresh blood and thawed serum with the reference laboratory assay; and the repeatability, the interference by anticoagulants, and the optimum slope calibration factor. Results from the Precision Xtra (another already validated BHB meter) are also available.Minnesota Agricultural Experiment Station - Rapid Agricultural Response. NovaBiomedical.Rodriguez, Zelmar; Caixeta, Luciano; Cramer, Gerard. (2020). Data for Diagnostic accuracy of a bovine specific electronic beta-hydroxybutyrate handheld meter in fresh blood and stored serum samples. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/zn1k-5476
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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