scholarly journals Translation of N.B.K. Sänger’s (1871) “Peripatus capensis Gr. and Peripatus leuckartii n. sp.” (Onychophora), along with remarks about the author and significance of his work

2021 ◽  
Author(s):  
Noel N. Tait ◽  
Ivo de Sena Oliveira ◽  
Georg Mayer

ABSTRACT The basic biology of onychophorans was revealed slowly and controversially during much of the 19th century. Communications were in Latin, French, Spanish, German and English. This information was synthesised in the monumental monographs of Bouvier in 1905 and 1907. However, amongst this multicultural endeavour is a significant Russian contribution by Nikolai Sänger, a student of Professor Leuckart of the Zoological Institute in Leipzig, Germany. Sänger requested a specimen of Onychophora from the Institute’s collection for serial sectioning. This resulted in a detailed account of the anatomy of Peripatopsis capensis. Sänger’s description of the extensive slime glands was the first to recognise them as the hallmark of onychophorans for defence and prey capture, and not the male reproductive system as previously claimed. Based on these morphological observations, he correctly concluded that onychophorans are not hermaphrodites and, furthermore, are “predominantly predaceous” animals. He further appropriately assigned the slime glands and salivary glands to the slime papilla segment, despite the lack of embryological data at that time. Sänger also identified the excretory organs (nephridia) and their openings, although he erroneously assigned them to a dual role of excretion and respiration. Moreover, he highlighted the importance of the position of the genital opening as a diagnostic character, described the ventral/preventral organs as “subcutaneous glandules”, identified the neurilemma enclosing the central nervous system, and recognised “oval holes of different sizes” in each nerve cord that were subsequently demonstrated to represent giant fibres. Of interest to parasitologists, he discovered a larval acanthocephalan encysted within the cutaneous muscles of his specimen of P. capensis, suggesting that onychophorans act as a secondary host for this parasite. Sänger’s memoir concludes with a brief but important description of the first species of Onychophora recorded from Australia, “northwest of Sydney, New Holland”. This species is now known as Euperipatoides leuckartii with a neotype designated from a specific location northwest of Sydney.

1995 ◽  
Vol XXVII (3-4) ◽  
pp. 66-69
Author(s):  
A. N. Kudrin ◽  
Т. A. Zatsepilova ◽  
V. V. Ryazhenov

Fundamental discoveries in the field of physiology, histology, pharmacology were made by outstanding talented scientists of Russia since the middle of the 19th century. They had priority in studies on the role of the central nervous system in the innervation of the heart, the morphological structure of the peripheral part of the autonomic nervous system of the heart and other organons, as well as in studies of the effect of pharmacological substances - atropine, muscarine, nicotine, chloroform on heart function.


2020 ◽  
Vol 2 (1) ◽  
pp. 73-90
Author(s):  
Ahmad Tohri ◽  
H. Habibuddin ◽  
Abdul Rasyad

This article discusses the Sasak people’s resistance against MataramKarangasem and Dutch colonial rulers in the 19th century in Lombok, Indonesia. It particularly focuses on Tuan Guru Umar Kelayu and his central role in the emergence of Sasak people’s resistance which transformed into Sasak physical revolution local and global imperialismcolonialism. Using the historical method, this article collected data through observation, in-depth interviews, and documentation. The data analysis involved the historical methods of heuristics, verification or criticism, interpretation, and historiography. The findings show that Sasak people’s resistance was not only caused by economic factors but also related to other factors such as social, cultural, and religious ones. Tuan Guru Umar Kelayu played a key role in the Sasak people’s resistance in that it was under his leadership and influence that the resistance transformed into a physical struggle against MataramKarangasem and Dutch colonialism as seen in Sakra War and Praya War which were led by his students and friends.


2020 ◽  
Vol 26 (4) ◽  
pp. 449-453
Author(s):  
Jacob A. Kahn ◽  
Jeffrey T. Waltz ◽  
Ramin M. Eskandari ◽  
Cynthia T. Welsh ◽  
Michael U. Antonucci

The authors report an unusual presentation of juvenile xanthogranuloma (JXG), a non–Langerhans cell histiocytosis of infancy and early childhood. This entity typically presents as a cutaneous head or neck nodule but can manifest with more systemic involvement including in the central nervous system. However, currently there is limited information regarding specific imaging features differentiating JXG from other neuropathological entities, with diagnosis typically made only after tissue sampling. The authors reviewed the initial images of a young patient with shunt-treated hydrocephalus and enlarging, chronic, extraaxial processes presumed to reflect subdural collections from overshunting, and they examine the operative discovery of a mass lesion that was pathologically proven to be JXG. Their results incorporate the important associated histological and advanced imaging features, including previously unreported metabolic activity on FDG PET. Ultimately, the case underscores the need to consider JXG in differential diagnoses of pediatric intracranial masses and highlights the potential role of PET in the initial diagnosis and response to treatment.


2020 ◽  
pp. 49-56
Author(s):  
T. Shirshova

Disorders of the musculoskeletal system in school-age children occupy 1-2 places in the structure of functional abnormalities. Cognitive impairment without organic damage to the central nervous system is detected in 30-56% of healthy school children. Along with the increase in the incidence rate, the demand for rehabilitation systems, which allow patients to return to normal life as soon as possible and maintain the motivation for the rehabilitation process, is also growing. Adaptation of rehabilitation techniques, ease of equipment management, availability of specially trained personnel and availability of technical support for complexes becomes important.


Author(s):  
Magdalena Zarzyka-Ryszka

The paper describes the past and present distribution of Colchicum autumnale in the vicinity of Cracow, highlights the role of Stanisław Dembosz (who published the first locality of C. autumnale near Igołomia in 1841). Gives information about the occurrence of C. autumnale in Krzeszowice in the 19th century (reported by Bronisław Gustawicz), presents new localities noted in 2012–2014 in meadows in the north-eastern part of the Puszcza Niepołomicka forest and adjacent area (between the Vistula and Raba rivers), and gives a locality found in Cracow in 2005 (no longer extant).


Author(s):  
D.R. Zhantiev

Аннотация В статье рассматривается роль и место Сирии (включая Ливан и Палестину) в системе османских владений на протяжении нескольких веков от османского завоевания до периода правления султана Абдул-Хамида II. В течение четырех столетий османского владычества территория исторической Сирии (Билад аш-Шам) была одним из важнейших компонентов османской системы и играла роль связующего звена между Анатолией, Египтом, Ираком и Хиджазом. Необходимость ежегодной организации хаджа с символами султанской власти и покровительства над святынями Мекки и Медины определяла особую стратегическую важность сирийских провинций Османской империи. Несмотря на ряд серьезных угроз во время общего кризиса османской государственности (конец XVI начало XIX вв.), имперскому центру удалось сохранить контроль над Сирией путем создания сдержек и противовесов между местными элитами. В XIX в. и особенно в период правления Абдул- Хамида II (18761909 гг.), сохранение Сирии под османским контролем стало вопросом существования Османской империи, которая перед лицом растущего европейского давления и интервенции потеряла большую часть своих владений на Балканах и в Северной Африке. Задача укрепления связей между имперским центром и периферией в сирийских вилайетах в последней четверти XIX в. была в целом успешно решена. К началу XX в. Сирия была одним из наиболее политически спокойных и прочно связанных со Стамбулом регионов Османской империи. Этому в значительной степени способствовали довольно высокий уровень общественной безопасности, развитие внешней торговли, рост образования и постепенная интеграция местных элит (как мусульман, так и христиан) в османские государственные и социальные механизмы. Положение Сирии в системе османских владений показало, что процесс ослабления и территориальной дезинтеграции Османской империи в эпоху реформ не был линейным и наряду с потерей владений и влияния на Балканах, в азиатской части империи в течение XIX и начала XX вв. происходил параллельный процесс имперской консолидации.Abstract The article examines the role and place of Greater Syria (including Lebanon and Palestine) in the system of Ottoman possessions over several centuries from the Ottoman conquest to the period of the reign of Abdul Hamid II. For four centuries of Ottoman domination, the territory of historical Syria (Bilad al-Sham) was one of the most important components in the Ottoman system and played the role of a link between Anatolia, Egypt, Iraq and Hijaz. The need to ensure the Hajj with symbols of Sultan power and patronage over the shrines of Mecca and Medina each year determined the special strategic importance of the Syrian provinces of the Ottoman Empire. Despite a number of serious threats during the general crisis of the Ottoman state system (late 16th early 19th centuries), the imperial center managed to maintain control over Syria by creating checks and balances between local elites. In the 19th century. And especially during the reign of Abdul Hamid II (18761909), keeping Syria under Ottoman control became a matter of existence for the Ottoman Empire, which, in the face of increasing European pressure and intervention, lost most of its possessions in the Balkans and North Africa. The task of strengthening ties between the imperial center and the periphery in Syrian vilayets in the last quarter of the 19th century was generally successfully resolved. By the beginning of the 20th century, Syria was one of the most politically calm and firmly connected with Istanbul regions of the Ottoman Empire. This was greatly facilitated by a fairly high level of public safety, the development of foreign trade, the growth of education and the gradual integration of local elites (both Muslims and Christians) into Ottoman state and social mechanisms. Syrias position in the system of Ottoman possessions clearly showed that the process of weakening and territorial disintegration of the Ottoman Empire during the era of reform was not linear, and along with the loss of possessions and influence in the Balkans, in the Asian part of the empire during the 19th and early 20th centuries there was a parallel process of imperial consolidation.


2019 ◽  
Vol 20 (7) ◽  
pp. 750-758 ◽  
Author(s):  
Yi Wu ◽  
Hengxun He ◽  
Zhibin Cheng ◽  
Yueyu Bai ◽  
Xi Ma

Obesity is one of the main challenges of public health in the 21st century. Obesity can induce a series of chronic metabolic diseases, such as diabetes, dyslipidemia, hypertension and nonalcoholic fatty liver, which seriously affect human health. Gut-brain axis, the two-direction pathway formed between enteric nervous system and central nervous system, plays a vital role in the occurrence and development of obesity. Gastrointestinal signals are projected through the gut-brain axis to nervous system, and respond to various gastrointestinal stimulation. The central nervous system regulates visceral activity through the gut-brain axis. Brain-gut peptides have important regulatory roles in the gut-brain axis. The brain-gut peptides of the gastrointestinal system and the nervous system regulate the gastrointestinal movement, feeling, secretion, absorption and other complex functions through endocrine, neurosecretion and paracrine to secrete peptides. Both neuropeptide Y and peptide YY belong to the pancreatic polypeptide family and are important brain-gut peptides. Neuropeptide Y and peptide YY have functions that are closely related to appetite regulation and obesity formation. This review describes the role of the gutbrain axis in regulating appetite and maintaining energy balance, and the functions of brain-gut peptides neuropeptide Y and peptide YY in obesity. The relationship between NPY and PYY and the interaction between the NPY-PYY signaling with the gut microbiota are also described in this review.


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