Period Of Movement Research Articles

Bioarchaeological insights into the Late Helladic communities of South Kynouria, Peloponnese: The case of the LH IIIA2‐IIIB2 burial cluster of Socha

AbstractThis paper examines the human osteological remains unearthed from six Late Helladic (LH IIIA2‐IIIB2) (1390/70–1200/1190 BCE) tombs at Socha in the Peloponnese. It seeks to investigate the character of a Mycenaean community that though organically integrated into and highly dependent on the palatial system, manifested Mycenaean burial practices with a distinctly local character, namely, through the use of built cist‐tombs. Our analysis investigates further the identity of this community and explores whether these people had also adopted a different way of life, diet and mortuary behavior toward specific groups. The results show that the demographic composition, diet, and health characteristics of the deceased of Socha were analogous to most Mycenaean sites: (a) equal representation of males and females, (b) burial exclusion of infants and young children, and (c) homogenous C3 terrestrial diet. In addition, a tendency for a more frequent inclusion of middle‐aged females with subadults in the same tomb suggests gender and age differentiation are in play. On the other hand, even though the burials of Socha practiced collectivity, an emphasis on individuality through a less variable post‐mortem manipulation of the deceased is also in evidence and is characterized by single secondary deposits within the original grave, no evidence for commingling, and no evidence for removal nor selection of bones in secondary deposits. These characteristics demonstrate the differentiation of the group of Socha during a period of intensive movement and the creation of new settlements in South Kynouria.

Characteristics and control factors of tectonic fractures of ultra-deep tight sandstone: Case study of the Lower Cretaceous reservoir in Bozi-Dabei area, Kuqa Depression, Tarim Basin, China

The Bozi-Dabei area in the Kuqa Depression host high-quality reservoirs in the Bashijiqike Formation and Baxigai Formation sandstones of the Lower Cretaceous, in which reservoirs yield significant industrial gas flow despite being situated at a considerable burial depth of 8200 m. The geological history of the target formation involves multiple phases of tectonic movements, resulting in the development of multi-genetic fractures that enhance the reservoir's storage and seepage capacity. Based on the results of the drilling core, field profile survey, imaging logging, and experimental analysis, this study presents an analysis of fractures in the Lower Cretaceous dense sandstone reservoir of the Bozi-Dabei area, andclarifies the characteristics and controlling factors of the multi-genesis and multi-period fractures. Additionally, it proposes an effective fracture development model that accounts for geo-stress control. In the Bozi-Dabei area, the prevailing high extrusion stress environment has led to the development of predominantly regional tectonic fractures and fault-related fractures, with relatively gentle deformation-related fractures. The results of a combination of multi-attribute data determination techniques, including fracture filling, inter-cutting relationship, fracture filling isotope, inclusions, and cathode luminescence tests, this study reveals that the reservoir fractures have experienced three major periods of tectonic movement. The regional tectonic fracture development is mainly controlled by stratigraphic lithology and thickness, while the proximity influences fault co-derived fractures to the fault and the relative positions of the upper and lower plates of the fault. The shift in the direction of the late horizontal maximum principal stress leads to the opening or closing of early fractures under different conditions in the Bozi-Dabei area, consequently affecting the degree of fracture opening and effectiveness. Notably, when the horizontal maximum principal stress is deflected to intersect with early fractures at a smaller angle or even superimpose, the fracture effectiveness of the related group system in the deflection direction improves, resulting in an overall coordination. The distribution characteristics of the fracture system in this highly productive reservoir are the result of dominant configurations from multi-phases of geological activities.

Tétouan et la littérature généalogique à l’époque de Mawlāy Ismāʿīl. Motivations et caractéristiques de deux enquêtes de vérification des généalogies

Abstract This article looks at the phenomenon of the writing of Cherifian genealogies, which came to the fore in Morocco in general, and in northern Morocco in particular, with the emergence of the Alawite dynasty. The case of Tétouan, which was the center of the governors of northern Morocco at the time, will be studied, examining the city’s relationship to the phenomenon of Sherifism. The article examines the reason for the emergence of works specializing in chorfa genealogies at the time of Mawlāy Ismāʿīl in Tetouan. We’ll see how attempts were made to distinguish the chorfa as a noble class distinct from the masses in certain tribes, particularly among the Banī ʿArūs and the Banī Ḥassān, and their consequences, including the phenomenon of the “so-called chorfa” (al-mutašarrifah) since the 15th century. This phenomenon was at the origin of the genealogical registration movement in the Alawite period. In this study, we will examine two examples of the oldest treatises on the genealogy of the chorfa in Tétouan, these are Dawaʿī al-ṭarab fī -ẖtisāri ansāb al-ʿarab written by Ibn al-ʿĀfiyah al-Zaǧnī, and Šaḏar al-ḏahab fī ẖayr nasab written by Ibn Raḥmūn al-Ḥasanī. These two books share very similar characteristics in terms of the nature of the content, based on literal transmission and data collection in the first instance, with very limited scope for discussion and analysis. In conclusion, we will discuss the degree of success they achieved in combating the mutašarrifah phenomenon in northern Morocco.

Factors affecting movement pattern of Sumatran elephant in Air Rami Production Forest, Bengkulu, Indonesia

Abstract. Laksmitha N, Santosa Y, Rahman DA. 2023. Factors affecting movement pattern of Sumatran elephant in Air Rami Production Forest, Bengkulu, Indonesia. Biodiversitas 24: 5539-5546. The decline in the quality and quantity of elephant natural habitat is a trigger factor for human-elephant conflict and results in a decrease in the elephant population. Research related to movement and habitat factors determining elephant movement is important to obtain information that can be used as a basis for conflict management and mitigation in the long term. We analyzed collared GPS data from a female adult elephant (n=1) in Air Rami Production Forest with recordings from November 2020 to August 2022. This study aims to investigate the relationship between the Sumatran elephant’s daily movement distance and movement period with habitat factors. The data obtained were analyzed using multiple regression analysis with tested variables, including secondary forest land cover, altitude, slope, distance from water sources, settlements, roads, and daily movement distance/movement period. The results showed that secondary forest land cover, slopes, movement period, distance from water sources, settlements, and roads influence the elephant's daily movement distance. Meanwhile, the relationship between the movement period is only influenced by slopes, distance from settlements and roads, and daily movement distance. Our study further provides information recognizing the preferred habitat factor of the Sumatran elephant, which gives stakeholders an essential tool for conservation.

Sitagliptin Extends Lifespan of Caenorhabditis elegans by Inhibiting Insulin/Insulin-Like Signaling and Activating Dietary Restriction-Like Signaling Pathways

Introduction: The discovery of longevity molecules that delay aging and prolong lifespan has always been a dream of humanity. Sitagliptin phosphate (SIT), an oral dipeptidyl peptidase-4 (DPP-4) inhibitor, is an oral drug commonly used in the treatment of type 2 diabetes (T2D). In addition to being antidiabetic, previous studies have reported that SIT has shown potential to improve health. However, whether SIT plays a role in the amelioration of aging and the underlying molecular mechanism remain undetermined. Methods: Caenorhabditis elegans (C. elegans) was used as a model of aging. Lifespan assays were performed with adult-stage worms on nematode growth medium plates containing FUdR with or without the specific concentration of SIT. The period of fast body movement, body bending rates, and pharyngeal pumping rates were recorded to assess the healthspan of C. elegans. Gene expression was confirmed by GFP fluorescence signal of transgenic worms and qPCR. In addition, the intracellular reactive oxygen species levels were measured using a free radical sensor H2DCF-DA. Results: We found that SIT significantly extended lifespan and healthspan of C. elegans. Mechanistically, we found that several age-related pathways and genes were involved in SIT-induced lifespan extension. The transcription factors DAF-16/FOXO, SKN-1/NRF2, and HSF-1 played important roles in SIT-induced longevity. Moreover, our findings illustrated that SIT-induced survival benefits by inhibiting the insulin/insulin-like signaling pathway and activating the dietary restriction-related and mitochondrial function-related signaling pathways. Conclusion: Our work may provide a theoretical basis for the development of anti-T2D drugs as antiaging drugs, especially for the treatment of age-related disease in diabetic patients.

LONG-TERM FOLLOW-UP (14 TO 25 YEARS) OF PATIENTS TREATED WITH CLOSED REDUCTION, SPLINTING, AND EARLY MOVEMENT FOR SIMPLE DISLOCATION OF THE ELBOW

We have previously reported on the medium-term outcomes following a non-operative protocol of a short period of splinting followed by early movement to treat simple dislocations of the elbow.We undertook extended follow up of our original patient study group to determine whether the excellent results previously reported were maintained in the very long-term. A secondary question was to determine the rate and need for any late surgical intervention.We attempted to contact all patients in the original patient study group. Patients were requested to complete the Oxford elbow score (OES), the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire and a validated patient satisfaction questionnaire. Patients were requested to attend a face-to-face assessment where they underwent a clinical examination including neurovascular assessment, range-of-motion and an assessment of ligamentous stability.Seventy-one patients (65%) from the original patient study group agreed to participate in the study.The mean duration of follow-up was 19.3 years. At final follow-up patients reported excellent functional outcome scores and a preserved functional range of movement in the injured elbows. The mean DASH score was 5.22 points and the mean Oxford Elbow Score was 91.6 points. The mean satisfaction score was 90.9 points.Our study shows that the excellent outcomes following treatment with a protocol of a short period of splinting and early movement remain excellent and are maintained into the very long term. These findings support our hypothesis that this treatment protocol is appropriate and suitable for most patients with simple dislocations of the elbow. The role for primary ligamentous repair for this patient group should be carefully considered. Work to more clearly define the anticipated benefits of surgery for specific patient groups or injury patterns would help to support informed decision making.

Communal Geographies: Space, Identity and Electoral Constituency in Colonial North India

The Indian Councils Act, 1909, the Government of India Act, 1919, and the Government of India Act, 1935, defined political space—an arena of political negotiations through electoral representation—along religious lines. The most crucial aspect of these legislative-institutional developments was the definition and delimitation of ‘communal-territorial constituencies’, and franchisee qualifications. This specific colonial form of representative politics, which was debated, negotiated and translated by the religio-political elite in the arena of local politics, produced a communal notion of space. Thus, each of the localities, wards, cities and regions at large were officially demarcated into Muhammadan, General/Hindu, Sikh and Indian-Christian electoral constituencies. The paper explores the intricacies of this process and the complex question of ‘representation’ during the period of the national movement. It argues that this official demarcation of social groups and localities into political constituencies produced a complex configuration of identity and space, which had multiple manifestations with extended franchise. It established electoral representation as a mode to make legitimate claims and counterclaims over space.

Clinical and instrumental features in 82 patients with insufficient sleep syndrome.

Insufficient sleep syndrome possibly represents the worldwide leading cause of daytime sleepiness, but remains poorly recognised and studied. The aim of this case series is to comprehensively describe a cohort of patients with insufficient sleep syndrome. Eighty-two patients were studied concerning demographic and socio-economic features, medical, psychiatric and sleep comorbidities, substance use, sleep symptoms, actigraphy, video-polysomnography, multiple sleep latency tests and treatment. The typical patient with insufficient sleep syndrome is a middle-aged adult (with no difference of gender), employed, who has a family, often carrying psychiatric and neurological comorbidities, in particular headache, anxiety and depression. Other sleep disorders, especially mild sleep apnea and bruxism, were common as well. Actigraphy was a valuable tool in the characterisation of insufficient sleep syndrome, showing a sleep restriction during weekdays, associated with a recovery rebound of night sleep during weekends and a high amount of daytime sleep. An over- or underestimation of sleeping was common, concerning both the duration of night sleep and daytime napping. The average daily sleep considering both daytime and night-time, weekdays and weekends corresponds to the recommended minimal normal duration, meaning that the burden of insufficient sleep syndrome could mainly depend on sleep fragmentation and low quality. Sleep efficiency was elevated both in actigraphy and video-polysomnography. Multiple sleep latency tests evidenced a tendency toward sleep-onset rapid eye movement periods. Our study offers a comprehensive characterisation of patients with insufficient sleep syndrome, and clarifies their sleeping pattern, opening avenues for management and treatment of the disorder. Current options seem not adapted, and in our opinion a cognitive-behavioural psychotherapy protocol should be developed.

Influence of visual perception on movement decisions by an ungulate prey species.

Visual perception is dynamic and depends on physiological properties of a species' visual system and physical characteristics of the environment. White-tailed deer (Odocoileus virginianus) are most sensitive to short- and mid-wavelength light (e.g. blue and green). Wavelength enrichment varies spatially and temporally across the landscape. We assessed how the visual perception of deer influences their movement decisions. From August to September 2019, we recorded 10-min locations from 15 GPS-collared adult male deer in Central Florida. We used Hidden-Markov models to identify periods of movement by deer and subset these data into three time periods based on temporal changes in light environments. We modeled resource selection during movement using path-selection functions and simulated 10 available paths for every path used. We developed five a priori models and used 10-fold cross validation to assess our top model's performance for each time period. During the day, deer selected to move through woodland shade, avoided forest shade, and neither selected nor avoided small gaps. At twilight, deer avoided wetlands as cloud cover increased but neither selected nor avoided other cover types. Visual cues and signals are likely more conspicuous to deer in short-wavelength-enriched woodland shade during the day, while at twilight in long-wavelength-enriched wetlands during cloud cover, visual cues are likely less conspicuous. The nocturnal light environment did not influence resource selection and likely has little effect on deer movements because it's relatively homogenous. Our findings suggest visual perception relative to light environments is likely an underappreciated driver of behaviors and decision-making by an ungulate prey species.

Interetnické vzťahy v prostredí Rusínov a Slovákov (na Slovensku a na Dolnej zemi) v 19. storočí

Rusyns and Slovaks, members of two culturally close ethnic groups, had lived for centuries in one state unit and in immediate neighbour contact. Complex socio-economic situation of the Rusyn settlement area in Slovakia had conditioned the poor development of both cultural and national needs. Rusyn intelligentsia from Greek-Catholic church circles had tended towards Hungarian culture or a broader Slavic consciousness. From the beginning of the 19th century and during the spread of pan-Slavism with the development of national movements and the formation of modern nations, Rusyns became the object of interest in Slovak intellectual circles. The Rusyn elite, inspired by Slavic and nonSlavic national movements, revived nationally in the revolutionary period of the 1840s. It was also the merit of Slovaks who supported the national awakening of Rusyns as their closest allies in the Kingdom of Hungary during the peak period of the Slovak national revival movement (1836–1848). The mutuality of RusynSlovak political cooperation had been manifested in the revolutionary years of 1948–1949 in the Habsburg Monarchy. Even though the revolution in the Kingdom of Hungary had failed, it had brought some significant changes in the sphere of social development, civil principles and the weakening of the influence of the state and the church. These new conditions had enabled the emergence and development of Rusyn national revival movement and the so-calledrevivalistic generation of Rusyns. Mutual contacts between the two national movements, especially in the post-revolutionary period, had symbolized social, political and literary activities of several nationalities. Even in the second half of the 19th century, Slovak elites had a positive influence on the development of the Rusyn national movement. Slovak environment had an inspiring effect on Rusyns. Of course, this relationship had not only worked from the side of Slovaks to Rusyns, but also in the opposite direction (in a lesser extent), i.e. from Rusyns to Slovaks. Finally, during the period of dualism (1867–1918), the reflection of Rusyn issue in Slovak literature was not as intense as before the revolution, which was related to strong national oppression of minorities by the Hungarian governments. The national movements of Rusyns and Slovaks had to cope with a very complicated political and social reality, so there was much less scope for wider cooperation and mutual reflection than before. Complex socio-economic situation of northern and northeastern Kingdom of Hungary at the end of the 19th century together with the rapidly increasing Slovak and Rusyn emigration had a significant influence on this.

Wastelands of empire, sites of ‘salvation’: landscapes of ‘reform’ in late nineteenth-century Germany

This essay traces a rural network of modern carceral and internal colonial land enclosures developed in late nineteenth-century Germany. It considers the extent to which long-running debates over the value of penal colonialism and deportation for the management of societal ‘threats’ influenced shifts in carceral policy of the time, long thought to have been largely determined by the welfare reform movement of the Wilhelmine period and the notion of ‘protective supervision’ that prevailed in its wake. It is argued that certain aspects of convict colonialism, publicly interrogated by German legal theorists, were quietly adapted by carceral reform practices beginning in the 1880s. This essay speculates on the spatial and territorial implications of those adaptations, examining the little-known prison labour camps located in the sewage farms of Berlin after 1890, the model establishment of the rural labour colony founded by the pastor Friedrich von Bodelschwingh, and the Prussian Settlement Commission’s anti-Slavic, anti-migrant program of internal colonisation, established by the German Ministry of Agriculture in 1886. It is argued that links between them were crystallised in a racialised topos of waste, framed by an emergent environmental discourse that served to sediment difference. Together, these institutions of correction, the architectures of enclosure that attended them, and the segregated geographies that resulted from them transformed the meaning and administration of Germany’s rural landscape and demarcate modern imperial planning practices that mobilised space, territory, and environment as mediums of ‘progressive’ reform and ‘protective supervision’ tied to increasingly regimented and policed forms of settlement.

Effectiveness and safety of arthroscopy combined with radial extracorporeal shockwave therapy for osteochondritis of the talus: a prospective, single-centre, randomized, double-blind study.

Arthroscopic microfracture is a conventional form of treatment for patients with osteochondritis of the talus, involving an area of < 1.5 cm2. However, some patients have persistent pain and limitation of movement in the early postoperative period. No studies have investigated the combined treatment of microfracture and shortwave treatment in these patients. The aim of this prospective single-centre, randomized, double-blind, placebo-controlled trial was to compare the outcome in patients treated with arthroscopic microfracture combined with radial extracorporeal shockwave therapy (rESWT) and arthroscopic microfracture alone, in patients with ostechondritis of the talus. Patients were randomly enrolled into two groups. At three weeks postoperatively, the rESWT group was given shockwave treatment, once every other day, for five treatments. In the control group the head of the device which delivered the treatment had no energy output. The two groups were evaluated before surgery and at six weeks and three, six and 12 months postoperatively. The primary outcome measure was the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Scale. Secondary outcome measures included a visual analogue scale (VAS) score for pain and the area of bone marrow oedema of the talus as identified on sagittal fat suppression sequence MRI scans. A total of 40 patients were enrolled and randomly divided into the two groups, with 20 in each. There was no statistically significant difference in the baseline characteristics of the groups. No complications, such as wound infection or neurovascular injury, were found during follow-up of 12 months. The mean AOFAS scores in the rESWT group were significantly higher than those in the control group at three, six, and 12 months postoperatively (p < 0.05). The mean VAS pain scores in the rESWT group were also significantly lower than those in the control group at these times (p < 0.05). The mean area of bone marrow oedema in the rESWT group was significantly smaller at six and 12 months than in the control group at these times (p < 0.05). Local shockwave therapy was safe and effective in patients with osteochondiritis of the talus who were treated with a combination of arthroscopic surgery and rESWT. Preliminary results showed that, compared with arthroscopic microfracture alone, those treated with arthroscopic microfracture combined with rESWT had better relief of pain at three months postoperatively and improved weightbearing and motor function of the ankle.

Waiting for the right time and tide: The fine‐scale migratory behavior of river herring in two coastal New England streams

AbstractObjectiveAlewife Alosa pseudoharengus and Blueback Herring A. aestivalis, collectively referred to as river herring, are anadromous clupeids inhabiting the North American Atlantic coast. Although the seasonal patterns of their spawning migration are well studied and predictable, the fine‐scale movements are still poorly resolved.MethodsThis study used high‐resolution acoustic imaging to study the fine‐scale behavior of river herring during their spring spawning migration in two coastal rivers in Massachusetts, United States.ResultObservations suggest that seasonal patterns of migration appear to be influenced by temperature, while fine‐scale patterns in migration were associated with the time of day, tidal state, and their interaction. River herring were consistently observed during both day and night, with elevated peaks of activity in the early morning and late afternoon. Daytime movement consisted of the intermittent passage of large, dense schools, while nighttime movement consisted of the frequent passage of individuals or small groups. The highest numbers of herring observations were associated with flood and high tides. Additionally, the interactions between time of day and tidal state resulted in synergistic positive effects during crepuscular incoming tides, which were favorable to movement, and synergistic negative effects during midday low tides, which inhibited fish movement.ConclusionThe changing relationship between the time of day and tidal state within the season manifested in changing periodicity in fish movement to correlate with favorable movement conditions. Since movements may be related to both time of day and tide, previous run size estimates from visual counts made only during the day may be too low. Sampling methodologies that collect information during all 24 h would likely produce the most accurate run size estimates. This study highlights the need to view river herring migration in a holistic context predicated by multiple environmental and biological factors that vary at several temporal scales (i.e., seasonally, daily, and hourly).

Long-Term Follow-up (14 to 25 Years) Following Closed Reduction and Early Movement for Simple Dislocation of the Elbow.

We have previously reported on the midterm outcomes after a nonoperative protocol to treat simple dislocations of the elbow that included a short period of splinting followed by early movement. We have now performed extended follow-up of the original patient group from the prior study to determine whether the excellent results that previously had been reported were maintained in the long term and also to determine the rate of and need for any late surgical intervention. We attempted to contact all of the patients from the original study group. We requested that they complete the Oxford Elbow Score (OES) survey, the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire, and a validated patient satisfaction questionnaire. Patients also were requested to attend a face-to-face assessment to have a clinical examination that included neurovascular, range-of-motion, and ligamentous stability assessments. Seventy-one patients from the original patient group agreed to participate in the new study. The mean duration of follow-up was 19.3 years. At the time of the final follow-up, patients reported excellent functional outcome scores and a preserved functional range of movement in the injured elbow. The mean OES was 91.6 points, the mean DASH score was 5.22 points, and the mean satisfaction score was 90.9 points. None of the patients had undergone delayed or secondary surgery for instability during the interval period. This study demonstrated that the original excellent outcomes following treatment with a protocol of a short period of splinting and early movement remained excellent and were maintained into the very long term. Therapeutic Level IV . See Instructions for Authors for a complete description of levels of evidence.

A series of 7 cases of patients with narcolepsy with hypocretin deficiency without the HLA DQB1*06:02 allele.

We report data collected from 2 reference European sleep centers on a series of patients with narcolepsy with hypocretin-1 deficiency and absence of the human leukocyte antigens (HLA) DQB1*06:02 allele. Clinical data, HLA DQ markers, and cerebrospinal fluid assessments were collected retrospectively from Caucasian patients with a diagnosis of narcolepsy type 1 with cerebrospinal fluid hypocretin-1 deficiency (< 110 pg/ml) and absence of the HLA DQB1*06:02 allele, with follow-up with at least 1 visit within the last 4 years, consecutively admitted to 2 European sleep centers (Lugano, Switzerland and Montpellier, France). Seven patients (3 of 29 patients in Lugano and 4 of 328 in Montpellier) were diagnosed with narcolepsy with hypocretin-1 deficiency and absence of HLA DQB1*06:02 (ie, 2% of patients with narcolepsy type 1). Regarding the HLA-DQB1 genotyping, 4 cases were positive for HLA DQB1*03:01, 1 for DQB1*03:02, and 3 for DQB1*02:01. Three patients had atypical cataplexy and 1 had no cataplexy. Only 2 patients had both a mean sleep latency of less than 8 minutes and more than 2 sleep onset rapid eye movement periods on the Multiple Sleep Latency Test, indicative of a less severe condition. Although rare, this series of 7 cases confirms that hypocretin-deficient narcolepsy should not be excluded in the absence of HLA DQB1*06:02, especially if patients are carriers of other high-risk HLA-DQB1 alleles (DQB1*03:01, *03:02, *02:01). These data support the hypothesis that narcolepsy type 1 is a wider disease spectrum linked to the loss of hypocretin peptide. Miano S, Barateau L, De Pieri M, etal. A series of 7 cases of patients with narcolepsy with hypocretin deficiency without the HLA DQB1*06:02 allele. J Clin Sleep Med. 2023;19(12):2053-2057.

Running overnight and struggling to find sea ice: long-distance movement by an Arctic fox (Vulpes lagopus) from Russia

Given the scale, speed, and complexity of recent changes in the Arctic, our understanding of their multiple implications for Arctic biota is still limited. We detail for the first time in the vast Russian Arctic the long-distance movement of an Arctic fox ( Vulpes lagopus (Linnaeus, 1758)) tracked with a GPS/iridium collar providing considerably high precision (several meters) and frequency of locations (every 4 h). Revealed diurnal activity patterns of the Arctic fox indicate that it ran greater distances in night hours and shortest in day hours during the most intense movement period. The movement records suggested several attempts to leave the land, as it seemed to encounter open water four times on different parts of Yamal peninsula. The Arctic fox crossed the Ob Bay towards the Gydan peninsula and satellite imagery of discontinuous ice during crossing suggested that it might have stayed on pieces of floating ice. Our observation may support evidence that a reduction in the duration and extent of sea ice could affect the ability of Arctic foxes to cover long distances and thus, in the long term, the connectivity between populations. Similar studies are needed aiming to understand movement ecology of the Arctic foxes in the changing Arctic.

The Expression of Feminism in Portrait Works of Hannah Höch by Using Photomontage during Weimar Germany

This paper focuses on analyzing the expression of feminism in Hannah Höch’s portrait works by using photomontage during Weimar Germany. Hannah Höch (1889-1978) is the only female Dadaist of Berlin Dada. Dada movement prevailed in Germany after the First World War and was influenced by the changes in politics, society, and economics. At the same time, photomontage was popular among Dadaists, which was made from cutting up photographs, newspapers, drawings, etc. for political propaganda, social criticism and advocation of Dada movement. Besides, during Weimar Republic (1918-1933), because of the changes in the society, women found new social values and roles, and people’s feminism consciousness was awakened. While most of the Dadaists used Photomontage to advocate their propositions of politics and society, Hannah Höch paid more attention to feminism. This paper starts by introducing the education and working experience of Hannah Höch as well as the influence of Dada movement and Weimar period on her. Then it analyses the development of Dadaism and photomontage as well as their relationships to lay a foundation for deeper discussions of Höch’s way and purport of photomontage creation. Then, this paper focuses on analyzing two pieces of photomontage portrait work of Hannah Höch and contrasts them respectively with two pieces of work of Kurt Schwitters. Finally, it concludes that Hannah Höch’s photomontage portrait works are not only extraordinary in her way of creation but also outstanding for her firm and thorough feminism.

Evaluation of self-supervised pre-training for automatic infant movement classification using wearable movement sensors.

The recently-developed infant wearable MAIJU provides a means to automatically evaluate infants' motor performance in an objective and scalable manner in out-of-hospital settings. This information could be used for developmental research and to support clinical decision-making, such as detection of developmental problems and guiding of their therapeutic interventions. MAIJU-based analyses rely fully on the classification of infant's posture and movement; it is hence essential to study ways to increase the accuracy of such classifications, aiming to increase the reliability and robustness of the automated analysis. Here, we investigated how self-supervised pre-training improves performance of the classifiers used for analyzing MAIJU recordings, and we studied whether performance of the classifier models is affected by context-selective quality-screening of pre-training data to exclude periods of little infant movement or with missing sensors. Our experiments show that i) pre-training the classifier with unlabeled data leads to a robust accuracy increase of subsequent classification models, and ii) selecting context-relevant pre-training data leads to substantial further improvements in the classifier performance.Clinical relevance- This study showcases that self-supervised learning can be used to increase the accuracy of out-of-hospital evaluation of infants' motor abilities via smart wearables.

The effect of 2-oxoindoline-3-glyoxylic acid derivatives on animals’ behavioral and autonomic reactions in the open field test

ABSTRACT Screening research on the effect of 2-oxoindoline-3-glyoxylic acid derivatives on the emotional and behavioral responses of rats in the open field test was performed. 2-oxoindoline derivatives were suspended in the injection water using the Tween-80 emulsifier (one drop with 25 mg of test substance) and intraperitoneally administered at a dose of 12 mg/kg 1 hour before the first test. Diazepam was administered in the dosage of 2 mg/kg and in the same way as the investigated compounds. Neuroethological indicators have been studied including the latent period of the first movement, ambulation (horizontal activity), number of upright postures (vertical activity), the number of times animals moved to the center, autonomic balance indicators such as the number of grooming acts and defecation acts calculated by the number of fecal balls (boluses). It was found that most 2-oxoindoline derivatives suppressed or did not affect animals’ orienting and investigatory responses in the open field test. Under these conditions, the compounds suppressed emotionality manifested as a reduced number of fecal balls and grooming acts indicating a decrease in anxiety and fear in a stressful situation caused by the novelty of the open field test. Based on the analysis, it can be argued that 2-oxoindoline derivatives can modify the psychophysiological features of intact rats, i.e. their neuropsychotropic properties.

How reliable is a simplified MSLT nap termination protocol?

ObjectiveAccording to current practical guidelines, naps of the Mean Sleep Latency Test (MSLT) must be terminated 15 min after sleep onset, which requires ad hoc scoring. For clinical convenience, some sleep clinics use a simplified protocol with fixed nap lengths of 20min. Its diagnostic accuracy remains unknown. MethodsA subset of MSLT naps of 56 narcolepsy type 1 (NT1), 98 Parkinson's disease (PD), 117 sleep disordered breathing (SDB), 22 insufficient sleep syndrome (ISS) patients, and 24 patients with idiopathic hypersomnia (IH), originally performed according to the simplified protocol, were retrospectively adjusted to standard protocol (nap termination 15min after sleep onset or after 20min when no sleep occurs). This was feasible in 60% of MSLT naps; in this subset, we compared sensitivity and specificity of both MSLT protocols for identification of patients with and without NT1. ResultsSensitivity of classical MSLT criteria for NT1, i.e. mean sleep latency ≤8.0min and ≥2 sleep onset rapid eye movement periods (SOREMPs), did not differ between protocols (95%). Specificity, however, was slightly lower (88.1% vs. 89.7%) in the simplified nap termination protocol, with 3 SDB patients and 1 ISS patient having false-positive MSLT findings in the simplified but not in the standard protocol. ConclusionsThe use of a simplified MSLT protocol with fixed nap duration had no impact on MSLT sensitivity for NT1, but the longer sleep periods in the simplified protocol increased the likelihood of REM sleep occurrence particularly in non-NT1 conditions, resulting in a slightly lower MSLT specificity compared to the standard protocol.