scholarly journals Short-range homing in camels: displacement experiments

Biology Open ◽  
2021 ◽  
Author(s):  
Sofyan Alyan
Keyword(s):  
Path Integration ◽  
Short Range ◽  
Release Site ◽  
Small Scale ◽  
Night Time ◽  
Homing Behavior ◽  
Release Point ◽  
Displacement Experiments ◽  
Return Home ◽  
Do So

Camels (Camelus dromedarius) are known to have good navigational abilities and can find their home after displacement to far places; however, there are no studies available on the navigational strategies employed by the camels in homing behavior. Thus, the aim of this study was to investigate the strategies by displacing female camels equipped with GPS trackers 6 km away from home to totally unfamiliar locations. The experiments comprised displacing nursing or non-nursing female camels 6 km from their living pens to an unfamiliar release site. Some camels were taken to the release site on foot, others were hauled on a truck, both during daytime and night-time. Displacements were either straight to the release points, or they consisted in convoluted paths. As a result, the camels were able to return home efficiently and rather directly after straight outward journeys but failed to do so after having performed convoluted trips to the release point. Moreover, impairing olfactory, visual, and auditory inputs by using mouth/nose muzzles eye covers and headphones did not affect homing ability. Based on these experiments the most likely hypothesis is that during their small-scale round trips the camels relied on path integration, and that this strategy is disrupted when the camels were subjected to disorientation procedures before release.

Emphasizing Choice and Autonomy in Personal Hygiene, Menstrual Health, and Sexual Health Product Distribution to People Experiencing Homelessness in Atlanta, Georgia During COVID-19

2021 ◽  
pp. 152483992110249
Author(s):  
April M. Ballard ◽  
Alison T. Hoover ◽  
Ana V. Rodriguez ◽  
Bethany A. Caruso
Keyword(s):  
Sexual Health ◽  
The United States ◽  
Product Distribution ◽  
Health Needs ◽  
Economic Conditions ◽  
Personal Hygiene ◽  
Small Scale ◽  
Support Organizations ◽  
Menstrual Health ◽  
Do So

The Dignity Pack Project is a small-scale, crisis-oriented supply chain in Atlanta, Georgia, designed to meet the acute personal hygiene,menstrual health, and sexual health needs of people experiencing homelessness (PEH). It was organized in response to conditions during the COVID-19 pandemic that continue to illuminate and exacerbate the distinct and complex challenges PEH face when trying to meet their basic needs and maintain their health. In addition to being particularly vulnerable to COVID-19 due to underlying conditions, crowding, and shared living spaces, the pandemic makes it harder for PEH to access already scant resources. Specifically, shelters across the United States have experienced outbreaks and, as a result, have reduced capacity or closed completely. Social support organizations have paused or restricted services. Donations and volunteering have decreased due to economic conditions and social distancing requirements. This practice note describes how we integrated feedback from PEH at the outset of the Dignity Pack project—and continue to do so—enabling the development of a pragmatic, humanistic outreach model that responds to the evolving needs of PEH as pandemic conditions and the seasons change. We detail how we established complementary partnerships with local organizations and respond to critical insights provided by PEH. We offer lessons and recommendations driven by the needs and preferences of PEH.

A Study on Small Scale Associated Gas FLNG Utilizing Small Scale LNG Carriers to Near-By Onshore LNG Plant

2016 ◽  
Author(s):  
X. C. Nguyen ◽  
Komla Miheaye ◽  
Mun-gyu Kim ◽  
Howard Newman ◽  
Dong-hoon Yoo ◽  
...  
Keyword(s):  
Short Range ◽  
Storage Capacity ◽  
Effective Means ◽  
Production Capacity ◽  
Cost Effective ◽  
Oil Fields ◽  
Small Scale ◽  
Associated Gas ◽  
Small Capacity ◽  
Stranded Gas

This study describes a FLNG specifically designed to monetize Associated Gas (AG) of producing oil fields located within convenient distance of an existing LNG Plant or Port with LNG storage facility. Limited production capacity combined with short range small capacity shuttles and limited LNG storage capacity, provide a cost effective means for LNG production. This FLNG is designed to service an existing industry and does not require development of stranded gas discoveries.

scholarly journals Native or Novice?

2016 ◽  
pp. 1-20
Author(s):  
Donna M. Velliaris ◽  
Paul Breen
Keyword(s):  
Exploratory Study ◽  
Ethnically Diverse ◽  
Digital Technologies ◽  
Digital Natives ◽  
Small Scale ◽  
First Year ◽  
Lifelong Learners ◽  
Use Of Technology ◽  
Return Home ◽  
Information Landscape

Access to and use of technology by students deemed to be ‘Digital Natives' studying in the Higher Education (HE) sector has been an area of much interest, speculation and publication. This chapter reports on a small-scale exploratory study that aimed to uncover the digital technology access and practices in both everyday life and academic study of ‘new' international first-year ‘pathway' students at the Eynesbury Institute of Business and Technology (EIBT). The purpose of this study was to contribute to the debate on digital natives by providing a ‘piece of evidence' on the access to and use of digital technologies by a group of pre-university pathway students. This exploratory study stemmed from the realisation that EIBT lecturers could better meet the needs of the current generation and cohort of 20+ ethnically diverse students, and help them acculturate and transition as lifelong learners who are able to adapt to an evolving information landscape in Australian HE and upon their return home.

scholarly journals HYBRID GRIDS ANALYSIS WITH RENEWABLE ENERGY AND THERMAL ENERGY FOR STREET LIGHT -A CASE STUDY

2018 ◽  
Vol 6 (2) ◽  
pp. 246-254
Author(s):  
Rajeev Ranjan ◽  
Mahesh kr Nagar ◽  
M.Nithin Choudary ◽  
M.K. Paswan ◽  
Manish Kumar
Keyword(s):  
Economic Assessment ◽  
Energy System ◽  
Solar Panel ◽  
Small Scale ◽  
Night Time ◽  
Generator System ◽  
Hybrid Energy ◽  
Dc System ◽  
Planning And Design

This paper presents a techno-economic assessment for a unique Isolated Hybrid Power System (IHPS) design which could be used for remote areas isolated from the grid which also has the capability of being operated as a smart the hybrid energy system considering solar and wind energy sources for the purpose of street lighting. Solar-Wind Street light is an intelligent, small scale, and off grid LED lighting system. The modelling design and simulations were based on Simulations conducted using the Data collected and HOMER Energy Planning and Design software tools. Its components are solar panel, wind generator system (PVC blowers), Dynamo, LDRs, battery, LED light, charge controller. The energy stored in battery during day time due to solar panel, get extracted by LEDs during the night time (because LDRs get activated due to absence of sun light). Wind also charges the batteries due to wind which is used for glowing street light. The advantage of this idea is to avoid daily running cost and make the system purely off-grid. In this prototype, we have used 12V DC system to supply energy to the lights.

“Fête de la Soupe”: rural identity, self-representation, and the(re)-making of the village in France

2018 ◽  
Vol 11 (3) ◽  
pp. 296-314 ◽  
Author(s):  
Hélène B. Ducros
Keyword(s):  
Design Methodology ◽  
Rural Setting ◽  
Small Scale ◽  
Content Type ◽  
Rural Identity ◽  
Organizational Challenges ◽  
The Past ◽  
Rural France ◽  
The Village ◽  
Do So

Purpose The purpose of this paper is to explore a grassroot festival in rural France organized around the concept of soup. The annual fête de la soupe held in a village in Auvergne provides a small-scale example of the ways in which space, time and festivalization interact in placemaking. Design/methodology/approach Ethnographic research highlights the motivations and experiences of the organizers and volunteer-participants, as well as some of the organizational challenges. Findings Revealing that the profit motive and economic outcomes are not dominant, this paper shows instead that the fête constitutes a space of relation-building between place and people, between people themselves and an introspective moment over the past and future of place as “rural”. While preserving rurality symbolized and mediated by the exchange of soup as the ultimate peasant dish, the festival is also an opportunity for villagers to revitalize the rural and showcase it as a place of creativity. Originality/value The study addresses the experience of volunteers and organizers in festivals, uses qualitative methods to do so and focuses on festivals in the rural setting, filling three gaps identified by others in the literature.

‘A volcano viewed from afar’: the Music of Salvatore Sciarrino

Tempo ◽  
1995 ◽  
pp. 22-26 ◽  
Author(s):  
Nicolas Hodges
Keyword(s):  
Contemporary Music ◽  
Small Scale ◽  
Music Ensembles ◽  
Do So

With the exception of a few small-scale pieces programmed by the more adventurous contemporary music ensembles, the music of Salvatore Sciarrino has not been performed frequently in this country; BBC Radio 3 has given occasional airtime to larger works, but we have yet to hear much of his most important music in any form. This article should act, I hope, as a pointer to readers who might wish to explore his output on disc, which currently is really the only way to do so in this country.

scholarly journals A small-scale hyperacute compound eye featuring active eye tremor: application to visual stabilization, target tracking, and short-range odometry

2015 ◽  
Vol 10 (2) ◽  
pp. 026002 ◽  
Author(s):  
Fabien Colonnier ◽  
Augustin Manecy ◽  
Raphaël Juston ◽  
Hanspeter Mallot ◽  
Robert Leitel ◽  
...  
Keyword(s):  
Target Tracking ◽  
Short Range ◽  
Compound Eye ◽  
Small Scale ◽  
Visual Stabilization

Spatial and Temporal Assessment of Titiwangsa Lake Water Quality Using Chemometrics Analysis

2018 ◽  
Vol 7 (3.14) ◽  
pp. 20
Author(s):  
Hafizan Juahir ◽  
Adiana Ghazali ◽  
Azimah Ismail ◽  
Mahadzirah Mohamad ◽  
Firdaus Mohamad Hamzah ◽  
...  
Keyword(s):  
Water Quality ◽  
Lake Water ◽  
Monitoring Program ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Current Status ◽  
Small Scale ◽  
Lake Water Quality ◽  
Night Time ◽  
Time Period

Titiwangsa Lake is a renowned recreational lake in Kuala Lumpur, Malaysia. The present study was purposely to define the current status of Titiwangsa Lake water quality and propose a water quality monitoring program to conserve and sustain the health of this lake. Samples were collected in January 2017 during the day and night-time periods. Spatial classification using hierarchical agglomerative cluster analysis (HACA) has clustered the sampling stations into low, medium and high contaminated areas. Temporal classification of discriminant analysis (DA) forward stepwise mode has highlighted DO, chlorophyll-a and E-coli are the significant variables. They showed a lower range of data during the day-time period compared to night-time period. DA backward stepwise model showed  significant variables of total suspended solid (TSS) and total phosphate (TP) were higher in concentration during the day-time period as compared to night-time period. The significant of varimax factors (VFs) in the principal component analysis (PCA) might contribute by the landscaping, small-scale domestic wastewater, urban stormwater and land erosion. In a nutshell, based on HACA classification, samples can be collected at only three stations represent each cluster during the next water quality monitoring activities as this could reduce the time and cost of sampling and sample analysis. 

DESIGN AND PROJECT PLANNING OF THE RENOVATION OF A RAILWAY LINE

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Amelie Outtier ◽  
Bart De Pauw ◽  
Hans De Backer
Keyword(s):  
Project Planning ◽  
Small Scale ◽  
Night Time ◽  
Railway Network ◽  
Railway Line ◽  
Pretensioned Concrete

The railway line L50A is one of the most important lines in Belgium, connecting the capital Brussels with Ghent. The line originally consisted out of two tracks. Because this formed a constricting bottleneck for the entire railway network in Belgium, the existing capacity was expanded. Between 2008 and 2015 a third and fourth track was constructed, one on each side of the original 2 tracks. Now that the expansion works have ended, the 2 original tracks have to be refurbished. The necessary works include: renewal of ballast and rails, changing all wooden sleepers by pretensioned concrete ones, strengthening of the subgrade and renewal and improvement of the waterproofing layers at the bridges and viaducts. This article focuses on the first 10 kilometers of the trajectory, including 10 locations where the waterproofing has to be renewed. At each location, the existing ballast, sleepers and tracks have to be removed for the middle two tracks, so a new polyethylene-waterproofing layer can be installed. Afterwards the tracks have to be restored. All of this has to be performed while the 2 outer tracks remain in operation and without disturbing the electrification cables above the tracks. Because of this, the project will necessitate a combination of creative planning, use of modified and small-scale equipment and a judicious use of night-time labor. All of these items will be discussed in the article.

scholarly journals Comparable human spatial memory distortions in physical, desktop virtual and immersive virtual environments

2022 ◽  
Author(s):  
Fiona Zisch ◽  
Coco Newton ◽  
Antoine Coutrot ◽  
Maria Murcia-Lopez ◽  
Anisa Motala ◽  
...  
Keyword(s):  
Spatial Memory ◽  
Path Integration ◽  
Goodness Of Fit ◽  
The Body ◽  
Small Scale ◽  
Spatial Distributions ◽  
Head Mounted Display ◽  
Physical Environments ◽  
Desktop Vr ◽  
The Impact

Boundaries define regions of space and are integral to episodic memories. The impact of boundaries on spatial memory and neural representations of space has been extensively studied in freely-moving rodents. But less is known in humans and many prior studies have employed desktop virtual reality (VR) which lacks the body-based self-motion cues of the physical world, diminishing the potentially strong input from path integration to spatial memory. We replicated a desktop-VR study testing the impact of boundaries on spatial memory (Hartley et al., 2004) in a physical room (2.4m x 2.4m, 2m tall) by having participants (N = 27) learn the location of a circular stool and then after a short delay replace it where they thought they had found it. During the delay, the wall boundaries were either expanded or contracted. We compared performance to groups of participants undergoing the same procedure in a laser-scanned replica in both desktop VR (N = 44) and freely-walking head mounted display (HMD) VR (N = 39) environments. Performance was measured as goodness of fit between the spatial distributions of group responses and seven modelled distributions that prioritised different metrics based on boundary geometry or walking paths to estimate the stool location. The best fitting model was a weighted linear combination of all the geometric spatial models, but an individual model derived from place cell firing in Hartley et al. 2004 also fit well. High levels of disorientation in all three environments prevented detailed analysis on the contribution of path integration. We found identical model fits across the three environments, though desktop VR and HMD-VR appeared more consistent in spatial distributions of group responses than the physical environment and displayed known variations in virtual depth perception. Thus, while human spatial representation appears differentially influenced by environmental boundaries, the influence is similar across virtual and physical environments. Despite differences in body-based cue availability, desktop and HMD-VR allow a good and interchangeable approximation for examining human spatial memory in small-scale physical environments.

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