Supplemental feeding may reduce responsiveness of Black-capped Chickadees (Poecile atricapillus) to avian mobbing calls during gap-crossing experiments

2019 ◽  
Vol 97 (8) ◽  
pp. 680-684
Author(s):  
Jacob M. Bailey ◽  
Matthew W. Reudink ◽  
Ken A. Otter
Keyword(s):  
Resource Availability ◽  
Supplemental Feeding ◽  
Playback Experiments ◽  
Crossing Experiments ◽  
Poecile Atricapillus ◽  
Future Studies ◽  
Sampling Locations ◽  
Before And After ◽  
Gap Crossing ◽  
Energetic Reserves

Deforestation creates gaps in forest habitat, which can limit the movements of many avian species. Increased predation risk associated with crossing open habitats is often considered the primary impediment to crossing gaps. However, other factors such as energetic reserves may also influence these decisions. We conducted playback experiments before and after supplemental feeding of Black-capped Chickadees (Poecile atricapillus (Linnaeus, 1766)) to investigate how energetic reserves influenced gap-crossing decisions. Black-capped Chickadees were less likely to respond to playbacks, whether conducted within forests or across gaps, after supplemental feeding. This suggests that energetic reserves may have less influence on gap-crossing decisions than on the willingness of birds to respond to mobbing calls in general. We recommend that future studies investigating gap-crossing decisions using playbacks account for differences in resource availability among sampling locations, especially when making comparisons across discrete habitats.

Effectiveness of Combining Manual Therapy and Acupuncture on Temporomandibular Joint Dysfunction: A Retrospective Study

2007 ◽  
Vol 35 (02) ◽  
pp. 203-208 ◽  
Author(s):  
Byung-Cheul Shin ◽  
Chung-Hyo Ha ◽  
Yung-Sun Song ◽  
Myeong Soo Lee
Keyword(s):  
Retrospective Study ◽  
Temporomandibular Joint ◽  
Manual Therapy ◽  
Randomized Clinical Trials ◽  
Combined Treatment ◽  
Mouth Opening ◽  
Temporomandibular Joint Dysfunction ◽  
Future Studies ◽  
Before And After ◽  
Maximal Mouth Opening

This retrospective study investigated the effects of combining manual therapy and acupuncture on the pain and maximal mouth opening (MMO), which were associated with temporomandibular joint dysfunction (TMD). The 49 TMD patients (15 men, 34 women; mean age = 30.47 years, SD = 13.52 years) were treated with a combination of acupuncture and manual therapy two or three times a week at the hospital. The pain and maximal mouth opening were assessed before and after 1 and 4 weeks of treatment. The combination therapy produced significant changes in pain levels ( p < 0.001) and mouth opening ( p < 0.001). All pairwise non-parametric comparison showed a significant improvement in pain ( p < 0.05 for all pairs) and MMO ( p < 0.05 for all pairs). These findings suggest that combining manual therapy and acupuncture decreases the pain level and increases the MMO of TMD patients. However, future studies should further investigate the efficacy of combined treatment on TMD with more rigorous randomized clinical trials.

scholarly journals Comparing Sudden Stratospheric Warming Definitions in Reanalysis Data*

2015 ◽  
Vol 28 (17) ◽  
pp. 6823-6840 ◽  
Author(s):  
Froila M. Palmeiro ◽  
David Barriopedro ◽  
Ricardo García-Herrera ◽  
Natalia Calvo
Keyword(s):  
Seasonal Cycle ◽  
Winter Season ◽  
Reanalysis Data ◽  
Sudden Stratospheric Warming ◽  
Pronounced Increase ◽  
Future Studies ◽  
Common Peak ◽  
Before And After ◽  
The Mean ◽  
Large Case

Abstract Sudden stratospheric warmings (SSWs) are characterized by a pronounced increase of the stratospheric polar temperature during the winter season. Different definitions have been used in the literature to diagnose the occurrence of SSWs, yielding discrepancies in the detected events. The aim of this paper is to compare the SSW climatologies obtained by different methods using reanalysis data. The occurrences of Northern Hemisphere SSWs during the extended-winter season and the 1958–2014 period have been identified for a suite of eight representative definitions and three different reanalyses. Overall, and despite the differences in the number and exact dates of occurrence of SSWs, the main climatological signatures of SSWs are not sensitive to the considered reanalysis. The mean frequency of SSWs is 6.7 events decade−1, but it ranges from 4 to 10 events, depending on the method. The seasonal cycle of events is statistically indistinguishable across definitions, with a common peak in January. However, the multidecadal variability is method dependent, with only two definitions displaying minimum frequencies in the 1990s. An analysis of the mean signatures of SSWs in the stratosphere revealed negligible differences among methods compared to the large case-to-case variability within a given definition. The stronger and more coherent tropospheric signals before and after SSWs are associated with major events, which are detected by most methods. The tropospheric signals of minor SSWs are less robust, representing the largest source of discrepancy across definitions. Therefore, to obtain robust results, future studies on stratosphere–troposphere coupling should aim to minimize the detection of minor warmings.

Psychophysical interactions with a double-slit interference pattern: Exploratory evidence of a causal influence

2021 ◽  
Vol 34 (1) ◽  
pp. 79-88
Author(s):  
Dean Radin ◽  
Helané Wahbeh ◽  
Leena Michel ◽  
Arnaud Delorme
Keyword(s):  
Experimental Data ◽  
Interference Pattern ◽  
Type I Error ◽  
Human Mind ◽  
The Other ◽  
Type I ◽  
Fringe Visibility ◽  
Future Studies ◽  
Before And After ◽  
Double Slit

An experiment we conducted from 2012 to 2013, which had not been previously reported, was designed to explore possible psychophysical effects resulting from the interaction of a human mind with a quantum system. Participants focused their attention toward or away from the slits in a double-slit optical system to see if the interference pattern would be affected. Data were collected from 25 people in individual half-hour sessions; each person repeated the test ten times for a total of 250 planned sessions. “Sham” sessions designed to mimic the experimental sessions without observers present were run immediately before and after as controls. Based on the planned analysis, no evidence for a psychophysical effect was found. Because this experiment differed in two essential ways from similar, previously reported double-slit experiments, two exploratory analyses were developed, one based on a simple spectral analysis of the interference pattern and the other based on fringe visibility. For the experimental data, the outcome supported a pattern of results predicted by a causal psychophysical effect, with the spectral metric resulting in a 3.4 sigma effect (p = 0.0003), and the fringe visibility metric resulting in 7 of 22 fringes tested above 2.3 sigma after adjustment for type I error inflation, with one of those fringes at 4.3 sigma above chance (p = 0.00001). The same analyses applied to the sham data showed uniformly null outcomes. Other analyses exploring the potential that these results were due to mundane artifacts, such as fluctuations in temperature or vibration, showed no evidence of such influences. Future studies using the same protocols and analytical methods will be required to determine if these exploratory results are idiosyncratic or reflect a genuine psychophysical influence.

scholarly journals Field (In)dependence Flexibility Following a Virtual Immersion Is Associated With Cybersickness and Sense of Presence

2021 ◽  
Vol 2 ◽  
Author(s):  
A. Maneuvrier ◽  
L. M. Decker ◽  
P. Renaud ◽  
G. Ceyte ◽  
H. Ceyte
Keyword(s):  
Visual Cues ◽  
Subjective Experience ◽  
A Posteriori ◽  
Future Studies ◽  
Sense Of Presence ◽  
Before And After ◽  
High Level ◽  
Shed Light ◽  
Rod And Frame Test ◽  
Rod And Frame

Field dependence–independence (FDI) is a psychological construct determining an individual’s approach of the perception–cognition coupling. In virtual reality (VR) context, several studies suggest that an individual’s perceptive style is susceptible to shift toward a more FI mode through down-weighting of conflicting visual cues. The present study proposes to investigate the potential flexible nature of FDI following a virtual immersion and to assess if this flexibility might be associated with the subjective experience of VR. 86 participants explored a real-world–like virtual environment for approximately 10 min. FDI levels were measured before and after the VR exposure using the rod-and-frame test. Their subjective experience of VR was measured a posteriori (cybersickness and sense of presence) and used in order to build two experimental groups via a cluster analysis. The results showed that only participants with a poor subjective experience of VR (i.e., a low level of sense of presence associated with a high level of cybersickness) significantly shifted to a more FI mode, which is discussed as a sensory re-weighting mechanism. Pragmatical applications are discussed, and future studies are outlined, based on the conclusion that FDI might be more flexible than we thought, which could shed light on the psychophysiology of VR.

scholarly journals Efektivitas Pemberian Makanan Tambahan (PMT) Pemulihan Pada Status Gizi Balita di Wilayah Kerja Puskesmas Simomulyo, Surabaya

2020 ◽  
Vol 4 (1) ◽  
pp. 58
Author(s):  
Arum Sekar Rahayuning Putri ◽  
Trias Mahmudiono
Keyword(s):  
Nutritional Status ◽  
Health Center ◽  
Supplemental Feeding ◽  
Cross Sectional ◽  
Significance Level ◽  
Supplementary Food ◽  
Children Under Five ◽  
Under Five ◽  
Before And After ◽  
Nutritional Status Of Children

Background: One of the efforts made in overcoming malnutrition in the toddler age group is by implementing a Recovery Supplementary Feeding program.Objectives: The purpose of this study was to analyze the differences in nutritional status of children based on weight for height before and after the Supplementary Food Recovery and differences in nutritional status of children after Supplementary Food Recovery and when they had not received Supplementary Food Recovery in the Simomulyo Community Health Center work area.Methods: This study was observational study using case-control design. A total of 38 toddlers with history of obtaining Supplemental Feeding Recovery (PMT) Program in the working area of Simomulyo Health Center were randomly selected. Nutritional status of toddlers is obtained using anthropometric methods of body weight and height / body length. Statistically tested using t-test paired with a significance level of <0.05.Results: After not getting Supplemental Feeding Recovery, it was found that 2.6% of children under five severely wasting, 34.2% wasting, and 63.2% had normal nutritional status. There was a decrease in the percentage of infants with normal nutritional status compared to after completing PMT Recovery program from 68.4% to 63.2%. There were no significant differences in nutritional status of children before and after the program (p=0.585). There was no difference between the nutritional status of children under five after the program and when they had not received the program (p=0.430)Conclusions: There was no difference in nutritional status of children (weight-for-height) before and after Supplemental Feeding Recovery Program.ABSTRAK  Latar Belakang: Upaya yang dilakukan dalam mengatasi kekurangan gizi pada kelompok usia balita adalah program Pemberian Makanan Tambahan (PMT) Pemulihan.Tujuan: Penelitian ini dilakukan bertujuan untuk menganalisis adanya perbedaan pada status gizi balita berasarkan BB/TB sebelum dan setelah Pemberian Makanan Tambahan (PMT) Pemulihan serta perbedaan status gizi balita setelah PMT Pemulihan dan saat sudah tidak mendapat PMT Pemulihan di wilayah kerja Puskesmas Simomulyo.Metode: Penelitian ini adalah peneitian observasional dengan desain penelitan cross sectional. Lokasi penelitian adalah di wilayah kerja Puskemas Simomulyo, Surabaya. Sebanyak 38 balita dengan riwayat mendapat PMT Pemulihan dipilih secara acak menggunakan metode simple random sampling. Status gizi balita didapat menggunakan metode antropometri berat badan dan tinggi/panjang badan. Indeks BB/TB digunakan dalam penilaian status gizi dengan alasan sasaran utama PMT Pemulihan adalah balita dengan status gizi kurus.  Uji secara statistik dilakukan menggunakan uji t berpasangan dengan tingkat signifikansi <0,05.Hasil: Setelah 3 bulan mendapat PMT Pemulihan ada peningkatan persentase balita dengan status gizi normal dari 65,8% menjadi 68,4%. Setelah tidak mendapat PMT Pemulihan ada penurunan persentase balita dengan status gizi normal menjadi 63,2%. Tidak ada perbedaan yang bermakna status gizi balita berasarkan BB/TB sebelum dan setelah PMT Pemulihan (p=0,585). Tidak ada perbedaan pada status gizi dapat disebabkan oleh konsumsi PMT yang belum optimal. Begitu juga diketahui tidak ada perbedaan yang bermakana status gizi balita setelah PMT Pemulihan dan saat sudah tidak mendapat PMT Pemulihan (p=0,430).Kesimpulan: Tidak ada perbedaan pada status gizi balita dengan indeks antropometri BB/TB saat sebelum PMT Pemulihan dan setelah PMT Pemulihan.

Water-Energy-Food Nexus Review for Biofuels Assessment

2021 ◽  
Vol 11 (1) ◽  
pp. 193-205
Author(s):  
Abass A. Gazal ◽  
Napat Jakrawatana ◽  
Thapat Silalertruksa ◽  
Shabbir H. Gheewala
Keyword(s):  
Resource Availability ◽  
First Generation ◽  
Decision Makers ◽  
Assessment Methodology ◽  
Life Cycle Assessment Methodology ◽  
New Approach ◽  
Future Studies ◽  
Human Needs ◽  
Trade Offs ◽  
Basic Human Needs

The appropriate use of limited natural resources for generating basic human needs such as energy, food, and water, is essential to help the society function efficiently. Hence, a new approach called nexus is being considered to resolve the effects of intrinsic trade-offs between the essential needs. A review of different methods and frameworks of the water-energy-food nexus was done in this article to give a detailed repository of information on existing approaches and advocate the development of a more holistic quantitative nexus method. Assessing biofuels under the water-energy-food nexus perspective, this review addresses the sustainability of bioenergy production. The results show the countries that can sustainably produce first-generation biofuels. Only a few methods have varied interdisciplinary procedures to analyse the nexus, and more analytical software and data on resource availability/use are needed to address trade-offs between these interacting resource sectors constituting the nexus. Also, “land” is suggested as an additional sector to consider in future studies using both the nexus index and life cycle assessment methodology. The review reveals that to tackle composite challenges related to resource management, cross-disciplinary methods are essential to integrate environmental, socio-political facets of water, energy, and food; employ collaborative frameworks; and seek the engagement of decision-makers.

scholarly journals Electronic Resource Availability Studies: An Effective Way to Discover Access Errors

2015 ◽  
Vol 10 (3) ◽  
pp. 30 ◽  
Author(s):  
Sanjeet Mann
Keyword(s):  
Resource Availability ◽  
Information Seeking ◽  
Research Method ◽  
Initial Study ◽  
Electronic Resource ◽  
Technical Problems ◽  
Systems Research ◽  
Before And After ◽  
The Difference ◽  
Student Information

Abstract Objective – The availability study is a systems research method that has recently been used to test whether library users can access electronic resources. This study evaluates the availability study’s effectiveness as a troubleshooting tool by comparing the results of two availability studies conducted at the same library before and after fixing access problems identified by the initial study. Methods – The researcher developed a six-category conceptual model of the causes of electronic resource errors, modified Nisonger’s e-resource availability method to more closely approximate student information-seeking behaviour, and conducted an availability study at the University of Redlands Armacost Library to estimate how many resources suffered from errors. After conducting troubleshooting over a period of several months, he replicated the study and found increased overall availability and fewer incidences of most error categories. He used Z tests for the difference of two proportions to determine whether the changes were statistically significant. Results – The 62.5% availability rate in the first study increased after troubleshooting to 86.5% in the second study. Z tests showed that troubleshooting had produced statistically significant improvements in overall availability, in the number of items that could be downloaded from the library’s online collection or requested through interlibrary loan (ILL), and in three of six error categories (proxy, target database and ILL). Conclusion – Availability studies can contribute to successful troubleshooting initiatives by making librarians aware of technical problems that might otherwise go unreported. Problems uncovered by an availability study can be resolved through collaboration between librarians and systems vendors, though the present study did not demonstrate equally significant improvements across all types of errors. This study offers guidance to librarians seeking to focus troubleshooting efforts where they will have the greatest impact in improving access to full-text. It also advances the availability research method and is the first attempt to quantify its effectiveness as a troubleshooting tool.

Impact of Transportation of Feedlot Cattle to the Harvest Facility on the Prevalence of Escherichia coli O157:H7, Salmonella, and Total Aerobic Microorganisms on Hides

2007 ◽  
Vol 70 (1) ◽  
pp. 17-21 ◽  
Author(s):  
A. L. REICKS ◽  
M. M. BRASHEARS ◽  
K. D. ADAMS ◽  
J. C. BROOKS ◽  
J. R. BLANTON ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Feedlot Cattle ◽  
Lower Percentage ◽  
Escherichia Coli O157 ◽  
Sample Collection ◽  
Treatment Groups ◽  
E Coli ◽  
Sampling Locations ◽  
Before And After

Prevalences of Escherichia coli O157:H7, Salmonella, and total aerobic microorganisms were determined on the hides of beef feedlot cattle before and after transport from the feedyard to the harvest facility in clean and dirty trailers. Swab samples were taken from the midline and withers of 40 animals on each of 8 days before and after shipping. After samples were collected, animals were loaded in groups of 10 on upper and lower levels of clean and dirty trailers. Animals were unloaded at the harvest facility and kept in treatment groups for sample collection after exsanguination. Salmonella was found more often on hide swabs collected from the midline than on than samples collected from the withers from animals transported in both clean and dirty trailers. Salmonella was found on significantly more hide swabs collected at harvest from both sampling locations than on those collected at the feedyard, with no differences attributed to the type of trailer. At the feedyard, clean trucks had a lower percentage of Salmonella-positive samples than did dirty trucks before animals were loaded. However, after transport, both clean and dirty trucks had a similar prevalence of Salmonella. There were no differences in Salmonella prevalence on hides collected from animals transported on the top and bottom levels of clean and dirty trucks. E. coli O157:H7 was detected on less than 2% of the samples; therefore, no practical conclusions about prevalence could be drawn. Hides sampled at harvest had higher concentrations of aerobic microorganisms than did hides sampled at the feedyard, and concentrations were higher on the midline than on the withers. Although the prevalences of Salmonella and total aerobic microorganisms increased on hides after transport from the feedyard to the plant, this increase was not related to the cleanliness of the trailers or the location of the cattle in the trailers.

Using radio frequency identification (RFID) to investigate the gap-crossing decisions of Black-capped Chickadees (Poecile atricapillus)

The Auk ◽  
2018 ◽  
Vol 135 (3) ◽  
pp. 449-460 ◽  
Author(s):  
Jacob M. Bailey ◽  
Matthew W. Reudink ◽  
Stefanie E. LaZerte ◽  
Mark Paetkau ◽  
Chris J. Johnson ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Poecile Atricapillus ◽  
Frequency Identification ◽  
Gap Crossing

scholarly journals Modelling and quantifying the spatial distribution of post-wildfire ash loads

2016 ◽  
Vol 25 (2) ◽  
pp. 249 ◽  
Author(s):  
Chris J. Chafer ◽  
Cristina Santín ◽  
Stefan H. Doerr
Keyword(s):  
Spatial Distribution ◽  
Polynomial Regression ◽  
Spatial Scales ◽  
Fire Severity ◽  
Spectral Ratio ◽  
Landsat 8 ◽  
Applied Model ◽  
Sampling Locations ◽  
Before And After

Ash is generated in every wildfire, but its eco-hydro-geomorphic effects remain poorly understood and quantified, especially at large spatial scales. Here we present a new method that allows modelling the spatial distribution of ash loads in the post-fire landscape, based on a severe wildfire that burnt ~13 600 ha of a forested water supply catchment in October 2013 (2013 Hall Road Fire, 100 km south-west of Sydney, Australia). Employing an existing spectral ratio-based index, we developed a new spectral index using Landsat 8 satellite imagery: the normalised wildfire ash index (NWAI). Before- and after-fire images were normalised and a differenced wildfire ash image (dNWAI) computed. The relationship between dNWAI and ash loads (t ha−1) quantified in situ at nine sampling locations burnt under a range of fire severities was determined using a polynomial regression (R2 = 0.98). A spatially applied model was computed within a geographic information system (GIS) to illustrate the spatial distribution of ash across the area burnt and to estimate ash loads in the five subcatchments affected by the wildfire. Approximately 181 000 tonnes of ash was produced by the wildfire, with specific loads increasing with fire severity. This new tool to model wildfire ash distribution can inform decisions about post-fire land management in future wildfires in the region. It can also be adapted for its application in other fire-prone environments.

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