A5076888615- Marine animal studies overview
- Underwater Acoustics Research
- Underwater Vehicles and Communication Systems
- Olfactory and Sensory Function Studies
- Advanced Chemical Sensor Technologies
- Insect Pheromone Research and Control
- Neural dynamics and brain function
- Arctic and Antarctic ice dynamics
- Animal Vocal Communication and Behavior
- Sleep and Wakefulness Research
- Circadian rhythm and melatonin
- Neurobiology and Insect Physiology Research
- Water Quality Monitoring Technologies
Northwestern University
2023-2025
Northwestern University
2023
WWF-India
2009-2014
Abstract The human olfactory bulb is thought to send direct monosynaptic projections the amygdala, though anatomical evidence for this scant. Here, we applied a specialized dMRI protocol optimized brain areas systematically quantify connections between and amygdala in 25 healthy participants. We found that exhibits higher density of streamline medial nucleus, anterior cortical central nucleus periamygdala complex compared basomedial basolateral lateral posterior nucleus. used k-means...
Nested sleep oscillations, emerging from asynchronous states in coordinated bursts, are critical for memory consolidation. Whether these bursts emerge intrinsically or an underlying rhythm is unknown. Here, we show a previously undescribed respiratory-driven oscillation the human hippocampus that couples with cardinal oscillations. Further, breathing promotes nesting of ripples slow together suggesting respiration acts as intrinsic to coordinate synchronization providing unique framework...
For targeting 13 Ganges river dolphins which includes calves from Karnavas to Narora, the world's first long-term real-time monitoring using integrated observation system that can record high frequency bio-sonar clicks estimate their 3-D location had been conducted continuously for nearly 6 months 21st November 2008 28th April 2009. The dolphins' realtime underwater 2-D movements around spot could be monitored anywhere in world over internet with an appropriate viewer program through host...
Around 15-20 Ganges river dolphins (platanista gangetica) inhabit the 12-km stretch from Karnavas to Narora Barrage in system. However, more than 10 were carried away downstream after flood of June-July 2013. In order urgently conduct a quick census secure original habitat, existing compact four-hydrophone array system (J-Array) was remodeled for towing, and function display real-time acoustic data on GUI (Graphical User Interface) an operational PC at site added. Using new J-Array system,...
The authors have been developing an acoustic observation system that can record the high-frequency bio-sonar clicks of Ganges river dolphins and estimate their 3D location in real time. In order to expand coverage measurement, we deployed installed one more hydrophone array about 100 meters away from original system. Combining measurement results two systems, successfully obtained improved estimates positions sound source compared using a single standalone measurement.
The authors have been developing an acoustic observation system that can record the high frequency bio-sonar clicks of Ganges river dolphins and estimate their 3-D location in real-time. In order to expand coverage measurement, a new integrated system, which consists one main array newly developed multiple small is proposed. For first step, we deployed 4-hydrophone cross River. Combining measurement results two systems, successfully obtained improved estimates positions sound source than...
Abstract To understand the biosonar click characteristics of Ganges river dolphins (adults, young adults, and calves) in a wild environment along with periodic visual observations, an ongoing program for long-term situ monitoring has been carried out using passive acoustic (PAM) system. During phase 4 (2012), migrating dolphin groups small calves were visually observed, trains having short interclick interval (ICI: from 6 to 12 ms) concurrently found data corresponding period. Click ICI have...
The Ganges river dolphin (Platanista gangetica) belongs to small toothed whale (dolphin) family and inhabits mainly the system in India. Like other species, it uses bio-sonar clicks for echolocation. For understanding dolphin's acoustic behavior over a long-time span, annual long-term real-time monitoring 4-6 months dry season using 6-hydrophone array has been conducted 3 consecutive seasons, i.e. three phases, since November 2008. 10-14 dolphins (adults calves) that inhabit 10 km stretch...
For increasing the accuracy of quantitative analysis census data Ganges river dolphins that inhabit and migrate over a long tract stretches in system, balloon with video camera system was developed for supporting using fusion acoustic visual which previously proposed by authors [1]. The tested on ground October 2016. Followed test, targeting groups dolphin (adults, juveniles calves) were estimated to 24-km stretch, i.e. part entire 200km river-stretch from Bhitora Allahabad India, initial...
In order to increase the surfacing dolphin's detection probability by balloon camera system similar that of a human observer, improvements were made in on [1]. Followed test ground, fusion census both acoustic and visual with improved was conducted at same experiment site as 2016 for three days from 6 8 February, 2018. The performance supporting well demonstrated, even though could be only when wind direction aligned boat cruise direction. cover previous drawbacks also capture individual...
An advanced and accurate census methodology that fuses acoustic visual of the freshwater dolphins has been successfully introduced for Ganges river inhabit migrate in a long tract system. In order to conduct an dolphins, array system with provision display dolphin's real-time direction data on GUI (Graphical User Interface), i.e. RAPID-Array (Real-time Acoustic Passive In-situ Dolphin tracking Array) was developed 2014. Targeting 10-13 (adults, juveniles calves) were estimated 7-km stretch,...