Period Of Movement Research Articles

Horizontal and vertical movement of yellowtails Seriola quinqueradiata during summer to early winter recorded by archival tags in the northeastern Japan Sea

YellowtailsSeriola quinqueradiataare an important fishery resource around Japan. Here we investigated the movement ecology and habitat utilization of this migratory fish. Archival tags were implanted in 26 adult yellowtails (61-90 cm in fork length) to examine their seasonal movement patterns and vertical distribution. Yellowtails were captured and released around Noto Peninsula in the Japan Sea on 27 May 2004. Eight individuals were recaptured more than 2 mo later, and we analyzed their daily position and vertical movement with ambient water temperature recorded in 60 or 120 s intervals. Most yellowtail individuals moved from the central coast of Japan to the north (from the west of Tsugaru Strait to the west of Hokkaido) in June. Individuals resided in the northern part of the Japan Sea from summer to mid-fall (late July to late October). Seasonal thermoclines developed during this northward movement and subsequent period of residency, with individuals primarily occupying the surface mixed layer during the daytime and at night; however, individuals made frequent short dives through the thermocline, especially during the daytime. These phenomena may be related to foraging based on the distribution of their prey. In late October, yellowtails started a rapid southward movement, primarily remaining in vertical thermal mixing coastal areas, and not entering the coldwater masses that formed offshore. This southward movement pattern might indicate that yellowtails avoid cold offshore water temperatures.

Neuromodulatory Selection of Motor Neuron Recruitment Patterns in a Visuomotor Behavior Increases Speed.

Animals generate locomotion at different speeds to suit their behavioral needs. Spinal circuits generate locomotion at these varying speeds by sequential activation of different spinal interneurons and motor neurons. Larval zebrafish can generate slow swims for prey capture and exploration by activation of secondary motor neurons and much faster and vigorous swims during escape and struggle via additional activation of primary motor neurons. Neuromodulators are known to alter the motor output of spinal circuits, but their precise role in speed regulation is not wellunderstood. Here, in the context of optomotor response (OMR), an innate evoked locomotor behavior, we show that dopamine (DA) provides an additional layer to regulation of swim speed in larval zebrafish. Activation of D1-like receptors increases swim speed during OMR in free-swimming larvae. By analyzing tail bend kinematics in head-restrained larvae, we show that the increase in speed is actuated by larger tail bends. Whole-cell patch-clamp recordings from motor neurons reveal that, during OMR, typically only secondary motor neurons are active, whereas primary motor neurons are quiescent. Activation of D1-like receptors increases intrinsic excitability and excitatory synaptic drive in primary and secondary motor neurons. These actions result in greater recruitment of motor neurons during OMR. Our findings provide an example of neuromodulatory reconfiguration of spinal motor neuron speed modules where members are selectively recruited and motor drive is increased to effect changes in locomotor speed. VIDEO ABSTRACT.

Structural organization of dream experience during daytime sleep-onset rapid eye movement period sleep of patients with narcolepsy type 1.

To assess the frequency of dream experience (DE) developed during naps at Multiple Sleep Latency Test (MSLT) by patients with narcolepsy type 1 (NT1) and establish, using story-grammar analysis, the structural organization of DEs developed during naps with sleep onset rapid eye movement (REM) period (SOREMP) sleep compared with their DEs during early- and late-night REM sleep. Thirty drug-free cognitively intact adult NT1 patients were asked to report DE developed during each MSLT nap. Ten NT1 patients also spent voluntarily a supplementary night being awakened during the first-cycle and third-cycle REM sleep. Patients provided dream reports, white dreams, and no dreams, whose frequencies were matched in naps with SOREMP versus non-REM (NREM) sleep. All dream reports were then analyzed using story-grammar rules. DE was recalled in detail (dream report) by NT1 patients after 75% of naps with SOREMP sleep and after 25% of naps with NREM sleep. Dream reports were provided by 8 out of 10 NT1 patients after both awakenings from nighttime REM sleep. Story-grammar analysis of dream reports showed that SOREMP-DEs are organized as hierarchically ordered sequences of events (so-called dream-stories), which are longer and more complex in the first and fourth SOREMP naps and are comparable with nighttime REM-DEs. The similar structural organization of SOREMP-DEs with nighttime REM-DEs indicates that their underlying cognitive processes are highly, albeit not uniformly, effective during daytime SOREMP sleep. Given the peculiar neurophysiology of SOREMP sleep, investigating SOREMP-DEs may cast further light on the relationships between the neurophysiological and psychological processes involved in REM-dreaming.

Wall Structure Affects Insulation of Nests Built by Thrushes

Incubation and rearing of nestlings are energetically demanding activities that can be affected by insulation conferred by the nest wall. Although thermal properties of nests are widely studied, no reports to date have dealt with the relative effects of the various structural parts of the nest wall. This experimental study investigated the effects of air movement, and for the first time, the effects of wall structure, on nest insulation for the Common Blackbird Turdus merula and Song Thrush Turdus philomelos of the Turdidae. Insulatory values, i.e. difference in cooling rate measured simultaneously inside and outside a nest, and internal cooling rates within the nest cup, were determined using temperature loggers under still-air and moving-air conditions. Moving-air increased insulatory values and internal cooling rates in both species. Insulatory values were positively correlated with the nest base thickness, but not nest side wall thickness. Removal of the outer nest wall and cup lining to reveal the internal mud cup of thrush nests reduced the insulatory value compared to the whole nest, the effect of which was exacerbated under moving-air conditions. These results may reflect that the nest wall confers huge insulatory advantages and especially so during periods of air movement. However, it is unclear whether this is related to the presence of particular nest materials that confer insulation, or to the amount of air trapped in the nest wall. Alternatively, the thermal conductivity of the materials lining the cup wall may be important.

HOLIDAYS AT THE ZOO: KNOWING TO PRESERVE

Holidays are a period of significant movement in zoos as a whole due to their greater frequency and thus the knowledge of their services for the population, as well as the offer of possible environmental education practices by the professionals who are part of the staff of these environments. Thus, this work aims to provide a brief account of the importance of raising public awareness through zoos. It has a descriptive and bibliographic nature, with research being carried out on educational platforms through the internet and thus applying to the experience of the activities carried out at Park Arruda Câmara, located in the city of João Pessoa/PB, Brazil. The activities carried out by the professionals present (biologists, zootechnicians, ecologists) in the park were able to assist in several points aimed at environmental awareness of an educational nature, where in a playful way it could interact with both children and adults. These activities have a greater interaction during the holidays and can thus demonstrate greater effectiveness, due to the greater number of people reached. This can show us the greatness of the importance of environmental education in people's daily lives.

Research on the Biomechanics Analysis of Technical Movement in Fatigue Period for Badminton Athletes

Research on the Biomechanics Analysis of Technical Movement in Fatigue Period for Badminton Athletes

After Cahokia: Indigenous Repopulation and Depopulation of the Horseshoe Lake Watershed AD 1400–1900

The occupation history of the Cahokia archaeological complex (ca. AD 1050–1400) has received significant academic attention for decades, but the subsequent repopulation of the region by indigenous peoples is poorly understood. This study presents demographic trends from a fecal stanol population reconstruction of Horseshoe Lake, Illinois, along with information from archaeological, historical, and environmental sources to provide an interpretation of post-Mississippian population change in the Cahokia region. Fecal stanol data indicate that the Cahokia region reached a population minimum by approximately AD 1400, regional population had rebounded by AD 1500, a population maximum was reached by AD 1650, and population declined again by AD 1700. The indigenous repopulation of the area coincides with environmental changes conducive to maize-based agriculture and bison-hunting subsistence practices of the Illinois Confederation. The subsequent regional depopulation corresponds to a complicated period of warfare, epidemic disease, Christianization, population movement, and environmental change in the eighteenth century. The recognition of a post-Mississippian indigenous population helps shape a narrative of Native American persistence over Native American disappearance.

The benefit and strategy of spring movements in Mongolian gazelles

Abstract Animal movement is predicted to be nomadic in areas with low temporal predictability of environmental conditions, but it remains unclear whether the costs of nomadic movement outweigh the benefits received. To examine the spring movement strategy of Mongolian gazelles (Procapra gutturosa) in Mongolia, where predictability of vegetation conditions is relatively low, we identified the type of each movement, evaluated the preferred vegetation conditions for gazelles, and quantified the benefit achieved through each spring movement. The surveyed gazelles continuously preferred areas with intermediate normalized difference vegetation index (NDVI) values from May to July, and spatial and temporal shifts of the distribution of preferred areas explain the long-distance movements of many gazelles in spring. Three movement types, sedentary, linear, and nomadic movement, were identified. The period when benefit varied most greatly among individuals differed between the linear and nomadic movement types. During the spring movement period, the variance of benefit was larger for the nomadic movement type, whereas during the summer it was larger for the linear movement type, suggesting the existence of different movement strategies in the Mongolian gazelle. Linear long-distance movements over a short period in the linear movement type suggest the so-called jumper strategy, whereas other movement patterns might represent the searcher strategy. Benefit loss through movements of individuals in both strategies indicate low interannual predictability of vegetation conditions in the study area, and it would explain the co-existence of multiple movement types or strategies used by Mongolian gazelles in spring.

تحریک قیام پاکستان :سیدابوالاعلیٰ مودودی ؒ اور مولانا اشرف علی تھانوی ؒ کی فکری مماثلت

Syed Abul Ala Moudoodi and Maulana Ashraf Ali Thanwi were the genii of their time. They influenced political and religious trends of their time. They observed the period of Pakistan movement and struggle for freedom. Though Maulana Ashraf Ali Thanwi had passed away in 1943 whereas Syed Moudoodi died later in 1979. They belong to a different school of thought but they were coincident in their views about Pakistan movement.
 Syed Moudoodi having different political theology had a distinct political agenda. Because Syed Moudoodi was abandoned from Mysticism intentionally and started his political movement on his intellectual and theological thinking. On the other side Maulana Ashraf Ali Thanwi owing Mystic ideology; abandon from livelihood; though having deep insight in political affairs. This is very authentic that both having the same intellectual ideology; were against Congress and consider her like a poisonous killer. They had envisioned and desire to optimise the weaknesses of the Muslim League.

Kang Youwei and Confucianism in Canada and beyond, 1899–1911

ABSTRACT Based on the new discovery of two of Kang Youwei’s writings composed in Canada in 1899, this article expands the historical research concerning his Confucian religious thoughts and movement within the Canadian context and the period of his overseas exile in 1899–1911. The article first focuses on Kang’s continual pursuit of Confucian religious cosmopolitism from China to Canada, especially his efforts to disseminate Confucianism overseas and to develop a new utopian vision that called for the removal of religious boundaries among human beings worldwide. Its second focus is on Kang’s use of Canada as both a starting point and a turning point in his search for the Confucian State Religion. He consequently sought to develop a conservative nationalism from traditional Chinese culture and through a utilitarian adoption of Christian institutions and Western cultures. The analysis of both Kang’s pursuit of Confucian religious cosmopolitism and his search for the Confucian State Religion reveals their positive and negative impacts on his reformist movement that affected Canadian Chinatowns and on the broader Chinese diaspora from 1899–1911. Kang’s promotion of Confucianism in Canadian Chinatowns and the Chinese diaspora in addition had implications for the failure of his religious movement in the early Republican Period.

Effect of nano-ligament combined with sports rehabilitation training on the treatment effect of ligament injury patients

When the human body is walking or exercising, each side of the knee joint must be alternately affected by the body weight and the acceleration of movement in a short period of time. In the case of poor muscle protection, it is easy to cause damage to the cruciate ligament inside the joint. This paper analyses the causes of sports injuries in competitive training in detail and takes knee joint injuries as the starting point. Before the experiment, the proprioception of the injured knee was worse than that of the healthy side, and there were very significant differences. After the experiment, the knee joint ligament training disk training group and knee joint ligament proprioception training exercise training group had significantly improved knee proprioception at the injured side, and there was no significant change in proprioception at the healthy side. In the control group, the proprioception of the injured knee was significantly improved, while the proprioception of the healthy knee was not significantly changed, but there was still a significant difference between the proprioception of the injured knee and the healthy knee. After the lateral ligament injury of the knee joint, the proprioceptive ability of the knee joint decreased. Both the knee joint ligament training disk training and the knee joint ligament proprioception training exercise can improve the injured knee joint proprioception, and there is no significant difference between them. Without any targeted training, the knee proprioceptive ability has also improved, but in the same time, its improvement effect is not as good as the knee joint ligament training disk training and knee joint ligament proprioception training exercise training.

The extinction of the Ukrainian culture of the Polish-Ukrainian-Slovak borderland and the image of the “Ukrainian Banderite” in Polish and Czechoslovak literature, journalism and cinematography, mid-1940s–1980s

The aim of this study is to outline the process of the extinction of Ukrainian culture in south-eastern Poland as a result of Polish resettlement actions and the activities of the Ukrainian underground movement (i.e., the Ukrainian Insurgent Army) in the post-war period (1944–1947). Concurrently, the study offers an analysis of the image of the “Ukrainian Banderite”, created by propaganda in Polish and Czechoslovak literature, journalism, and cinematography in the period from the mid-1940s to the end of the 1980s. The authors state that both in Poland and in Czechoslovakia the analysed topic has been subject to certain cyclical waves of interest, or current political demand or usefulness, but always according to an established and politically accepted template. The black-and-white reception of the issue, propaganda fictions, the concealment of facts, and the disproportionate highlighting of others, which were applied in the literary and film production of the real-socialist period, only distorted the historical objectivity of the issue and created a complicated stereotype in the collective memory.

Non-breeding movements of Black-legged Kittiwakes Rissa tridactyla from a North Sea urban colony

Early indications of the extensive North Atlantic non-breeding period range of Black-legged Kittiwakes Rissa tridactyla (hereafter Kittiwakes) have been reported using ship-based observations, but detailed knowledge of the migration of pelagic birds was difficult to obtain until the development of geolocators gave long-term tracking capabilities. Non-breeding period movements of several oceanic species have now been determined in detail. The current study aimed to establish the wintering tracks of Kittiwakes from Lowestoft, an urban colony in the east of England, and also to determine the similarity of annual tracks in individual birds. Commencing in 2012, geolocators were fitted to adult Kittiwakes breeding on Claremont Pier, and up to 2018 data from 15 birds were obtained, including up to four years’ tracks from individual birds. It was found that Kittiwakes from Lowestoft had highly varied tracks, covering virtually the whole range of wintering areas of birds from other North Atlantic colonies. However, individual birds showed a high degree of track repetition from year to year.

Modelling a Marketing-based Solution for the Paddy Marketing Crisis in Sri Lanka: Case of the Upuldeniya Warehouse Storage Receipt System

The issue of paddy marketing characterizes the paddy sector crisis, as farmers cannot realize the expected price at the harvesting period due to the bulk of supply. This paper attempts to study the effectiveness of a new marketing-based model – Warehouse Storage Receipt System (WSRS) - to solve the paddy sector crisis in Sri Lanka. Primary data for the study were drawn from field surveys conducted among farmers and traders in the Huruluwewa Agriculture Colonization Scheme in the Anuradhapura district, and in-depth interviews were conducted among the officers in the Upuldeniya WSRS in the scheme. A descriptive-analytical technique was employed in the study due to the nature of the investigated problem. The results first indicated that a majority of paddy farmers sell their harvest during the harvesting period at the lowest price, leading to inadequate net income from paddy farming. Secondly, the study revealed the oligopolistic nature of paddy marketing structure, since a few large-scale traders handle a substantial share of the farmers’ production. The lower financial capability of the farmers to cover variable costs of paddy farming and pre-modern economic characteristics of the paddy marketing channel have allowed large-scale traders to grab the farmers’ production at a minimum price during the harvesting period. Thirdly, WSRS evaluation has revealed that the farmers could enhance the net income of paddy farming by adequately marketing their harvest via the WSRS, as it improves the harvest holding capability of farmers until they realize a Farmer Expected Price (FEP). The study modelled that the WSRS leads to improve market competition through supply management, and thereby gradually increases the price at the harvesting period and shortens the price movement period to create equilibrium, which has been the farmers’ expectation.

Rhythmic swaying induced by sound in chimpanzees (Pan troglodytes)

Music and dance are universal across human culture and have an ancient history. One characteristic of music is its strong influence on movement. For example, an auditory beat induces rhythmic movement with positive emotions in humans from early developmental stages. In this study, we investigated if sound induced spontaneous rhythmic movement in chimpanzees. Three experiments showed that: 1) an auditory beat induced rhythmic swaying and other rhythmic movements, with larger responses from male chimpanzees than female chimpanzees; 2) random beat as well as regular beat induced rhythmic swaying and beat tempo affected movement periodicity in a chimpanzee in a bipedal posture; and 3) a chimpanzee showed close proximity to the sound source while hearing auditory stimuli. The finding that male chimpanzees showed a larger response to sound than female chimpanzees was consistent with previous literature about "rain dances" in the wild, where male chimpanzees engage in rhythmic displays when hearing the sound of rain starting. The fact that rhythmic swaying was induced regardless of beat regularity may be a critical difference from humans, and a further study should reveal the physiological properties of sound that induce rhythmic movements in chimpanzees. These results suggest some biological foundation for dancing existed in the common ancestor of humans and chimpanzees ∼6 million years ago. As such, this study supports the evolutionary origins of musicality.

Hyperarousal captured in increased number of arousal events during pre-REM periods in individuals with frequent nightmares.

The aim of this study was to investigate hyperarousal in individuals with frequent nightmares (NM participants) by calculating arousal events during nocturnal sleep. We hypothesized an increased number of arousals in NM participants compared with controls, especially during those periods where the probability of spontaneous arousal occurrence is already high, such as non-rapid eye movement to rapid eye movement transitions (pre-rapid eye movement periods). Twenty-two NM participants and 23 control participants spent two consecutive nights in our sleep laboratory, monitored by polysomnography. Arousal number and arousal length were calculated only for the second night, for 10min before rapid eye movement (pre-rapid eye movement) and 10min after rapid eye movement (post-rapid eye movement) periods, as well as non-rapid eye movement and rapid eye movement phases separately. Repeated-measures ANOVA model testing revealed significant Group (NM participants, controls) × Phase (pre-rapid eye movement, post-rapid eye movement) interaction in case of the number of arousals. Furthermore, post hoc analysis showed a significantly increased number of arousals during pre-rapid eye movement periods in NM participants, compared with controls, a difference that disappeared in post-rapid eye movement periods. We propose that focusing the analyses of arousals specifically on state transitory periods offers a unique perspective into the fragile balance between the sleep-promoting and arousal systems. This outlook revealed an increased number of arousals in NM participants, reflecting hyperarousal during pre-rapid eye movement periods.

Experimental and analytical investigation of the response of a mud layer to solitary waves

Although the different aspects of wave-mud interaction have been studied by many researchers, few studies have been conducted on the effect of solitary wave on the particle velocities formed in the layers of cohesive sediments. The main objective of the present study is to investigate different features of the mud mechanical responses to the solitary wave loadings. This paper describes a comprehensive study of solitary wave-mud interaction by means of sets of laboratory tests, in which time series of the velocity in the water and mud layers, as well as free-surface evolutions, were measured. Wave damping and several aspects of the mechanical response of the mud layer to solitary wave loadings, e.g. mud particle velocities, the ratio between positive and negative peak velocities, time shift between peak velocities in the mud and water layer and the mud movement period, were studied through nondimensional parameters. It was shown that, at higher values of the mud water content ratio, the time shifts between the peak velocities in the mud and water layers decrease, whereas the mud movement period and the ratio of the positive to the negative peaks increase. Similar trends were observed as the height of the solitary wave was increased. A viscous analytical two-layered model has been developed. Comparing to the measurements, the present model and the model of Liu and Chan (J Fluid Mech 579:467–480, 2007) presented a similar behaviour for simulating the mechanical response of mud under the action of a solitary wave and both models performed better than the model of Jiang and Zhao (J Waterw Port Coast Ocean Eng 115:345–362, 1989).

Real-Time Feasible Footstep Planning for Bipedal Robots in Three-Dimensional Environments Using Particle Swarm Optimization

Footstep planning in various three-dimensional environments is formulated as an optimization problem, which is solved using a particle swarm optimi-zation. The objective function for optimization is designed to achieve real-time footstep planning considering arrival at the goal with effective not only foot placements but also walking periods, kinematic constraints: obstacle avoidance and hardware limitations, and dynamic constraints for the bipedal dynamics: stability while walking and feasibility of footsteps in a walking pattern generator. Specifically, optimization objectives are to minimize remaining distance to the goal, lateral movement, rotational movement, and walking period variation. Three penalties are also consid-ered depending on the situations. The first penalty is for obstacle collision avoidance along with prevention of unstable walking due to excessive footstep height variation. The second penalty is for walking satisfying stable zero-moment point condition along with the foot collision avoidance. The third penalty is for feasible footstep planning in a walking pattern generator. Any approxi-mation or precomputation is not required for the proposed footstep planning method. The validity of the proposed method is verified through experiments in various 3-D environments with static and dynamic obstacles.

Modern Chinese nationalism and the awakening of self-consciousness of the Chinese Nation

The concept of “Chinese nation” has a close relationship with the rise, development and upsurge of modern Chinese nationalism from its proposition to establishment, and to universal identification among people of all ethnic groups. The period of the late Qing Dynasty and the early Republic of China was the formation stage of modern Chinese nationalism and also the stage of the proposition and initial usage of the concept of “Chinese nation”: Modern Chinese nationalism developed around the period of the May 4th Movement. Under the impetus of the establishment of national self-determination theory, especially the rise of a national self-determination movement, the concept of “Chinese nation” was accepted and adopted by more and more people and finally established and formed. After the September 18th Incident, especially after the North China Incident and the July 7th Marco Polo Bridge Incident, the worsening national crisis promoted the upsurge of modern Chinese nationalism, and this upsurge made the concept of “Chinese nation” more widely and deeply disseminated and accepted.

五四”無鬼神論者的思想探尋 — 以陳獨秀、胡適爲例

五四”無鬼神論者的思想探尋 — 以陳獨秀、胡適爲例