scholarly journals Anti-predator behaviour of Rhinella major (Müller and Hellmich 1936), with insights into the Rhinella granulosa group

Herpetozoa ◽  
2021 ◽  
Vol 34 ◽  
pp. 195-200
Author(s):  
Fillipe Pedroso-Santos ◽  
Carlos Eduardo Costa-Campos

In anurans, the different types of anti-predator behaviour have been documented in isolation, but some species have shown synergistic strategies in different situations. The display of these types of behaviour may be related to the types of predators in the habitat, which boost defensive responses in their prey. However, most reports are mostly opportunistic and punctual observations, not systematic. Here, we report the occurrence of anti-predator behaviour in the toad Rhinella major (Müller and Hellmich 1936) (Amphibia, Anura, Bufonidae) in the face of different handling modes. Probably the disturbance caused by handling had elicited a predator deterrence response in the individual, causing it to rapidly exhibit such behaviour. These conditions are discussed along with an overview of anti-predator behaviour in species of the R. granulosa group and we re-interpreted these strategies for two species in the group.

2019 ◽  
pp. 49-55
Author(s):  
O. Ya. Mokryk

The branching of the trigeminal nerve on the face has an individual anatomical variability.  The individual variability of innervation of soft tissues of the maxillofacial area should be taken into account during their local anesthesia. During the blockade of the zygomaticofacial nerve in accordance with the well-known technique, only 74 % of the cases of anesthesia in the buccal and zygomatic areas were completely anesthetized. The aim of the study – to give a сlinical evaluation of the effectiveness of the developed method of anesthesia of the zygomaticofacial nerve. Materials and Methods. In the clinical observation  41 stationary  stomatological patients with planned surgical interventions on the lateral facial area took part (in the buccal area – 16 patients, in the zygomatic area – 25 patients).  In order to detect the individual anatomical features of the facial part of the head in patients, the facial index was determined by the Garson`s formula as the relation between the morphological height of the face and its width multiplied by 100. These patients were applied a developed method of conductive anesthesia of the zygomaticofacial nerve and compared its effectiveness with a known method. Pain sensitivity and perception in patients were studied using subjective and objective methods. Pain sensitivity was determined by injection of a needle (pinprick) into the epidermis. Pain perception during local anesthesia administration was evaluated by the Sounds, Eyes and Motor (SEM) scale. Results and Discussion.  Taking into account the results of craniometric studies as well as the individual topographic and anatomical features of zygomaticofacial nerve branching in people with different types of skull structure, the technique of conduction anesthesia of the branches of the zygomaticofacial nerve was developed. During surgical treatment the effectiveness of the local anesthetic developed method was evaluated as good – it was observed in patients a stable anesthesia, without psychosomatic peculiarities as well as local and general complications. Conclusions. Application in clinical conditions of the technique of conductive anesthesia of the zygomaticofacial nerve, developed by us, in combination with the classical method of local anesthesia of the buccal nerve provides painless surgical interventions on the lateral area of the face. For the successful local anesthesia of the zygomatic and buccal regions, it is necessary to take into account the anatomical variability of the branch on the face of the zygomaticofacial nerve in patients with different types of skull structure and face shape.


Author(s):  
Elisabeth van Houts

This book contains an analysis of the experience of married life by men and women in Christian medieval Europe c. 900–1300. The focus will be on the social and emotional life of the married couple rather than on the institutional history of marriage. The book consists of three parts: the first part (Getting Married) is devoted to the process of getting married and wedding celebrations, the second part (Married Life) discusses the married life of lay couples and clergy, their sexuality, and any remarriage, while the third part (Alternative Living) explores concubinage and polygyny as well as the single life in contrast to monogamous sexual unions. Four main themes are central to the book. First, the tension between patriarchal family strategies and the individual family member’s freedom of choice to marry and, if so, to what partner; second, the role played by the married priesthood in their quest to have individual agency and self-determination accepted in their own lives in the face of the growing imposition of clerical celibacy; third, the role played by women in helping society accept some degree of gender equality and self-determination to marry and in shaping the norms for married life incorporating these principles; fourth, the role played by emotion in the establishment of marriage and in married life at a time when sexual and spiritual love feature prominently in medieval literature.


Author(s):  
Jacob Busch ◽  
Emilie Kirstine Madsen ◽  
Antoinette Mary Fage-Butler ◽  
Marianne Kjær ◽  
Loni Ledderer

Summary Nudging has been discussed in the context of public health, and ethical issues raised by nudging in public health contexts have been highlighted. In this article, we first identify types of nudging approaches and techniques that have been used in screening programmes, and ethical issues that have been associated with nudging: paternalism, limited autonomy and manipulation. We then identify nudging techniques used in a pamphlet developed for the Danish National Screening Program for Colorectal Cancer. These include framing, default nudge, use of hassle bias, authority nudge and priming. The pamphlet and the very offering of a screening programme can in themselves be considered nudges. Whether nudging strategies are ethically problematic depend on whether they are categorized as educative- or non-educative nudges. Educative nudges seek to affect people’s choice making by engaging their reflective capabilities. Non-educative nudges work by circumventing people’s reflective capabilities. Information materials are, on the face of it, meant to engage citizens’ reflective capacities. Recipients are likely to receive information materials with this expectation, and thus not expect to be affected in other ways. Non-educative nudges may therefore be particularly problematic in the context of information on screening, also as participating in screening does not always benefit the individual.


Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3874
Author(s):  
Dominika Veselinyová ◽  
Jana Mašlanková ◽  
Katarina Kalinová ◽  
Helena Mičková ◽  
Mária Mareková ◽  
...  

We are experiencing rapid progress in all types of imaging techniques used in the detection of various numbers and types of mutation. In situ hybridization (ISH) is the primary technique for the discovery of mutation agents, which are presented in a variety of cells. The ability of DNA to complementary bind is one of the main principles in every method used in ISH. From the first use of in situ techniques, scientists paid attention to the improvement of the probe design and detection, to enhance the fluorescent signal intensity and inhibition of cross-hybrid presence. This article discusses the individual types and modifications, and is focused on explaining the principles and limitations of ISH division on different types of probes. The article describes a design of probes for individual types of in situ hybridization (ISH), as well as the gradual combination of several laboratory procedures to achieve the highest possible sensitivity and to prevent undesirable events accompanying hybridization. The article also informs about applications of the methodology, in practice and in research, to detect cell to cell communication and principles of gene silencing, process of oncogenesis, and many other unknown processes taking place in organisms at the DNA/RNA level.


Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1429
Author(s):  
Ismael García ◽  
Miguel A. Serrano ◽  
Carlos López-Colina ◽  
Fernando L. Gayarre ◽  
Jesús M. Suárez

The use of Rectangular Hollow Sections (RHS) as columns in steel construction includes important advantages like higher mechanical strength and fire resistance. However, the practical demountable bolted joints between beams and columns are not easy to execute, due to impossibility of access to the inner part of the tube. The use of threaded studs welded to the face of the tube and bolted to the beam by means of angle cleats is one of the cheaper and most efficient solutions to obtain beam–column joints with a semi-rigid behavior, as is usually sought in building structures. Nevertheless, it is important to point out that the stud-diameter and the stud-class selection may affect the mechanical properties of the welded parts of the joint. In this paper, 8MnSi7 (with a commercial designation K800) and 4.8 threaded studs were welded to RHS steel tubes and mechanical properties on the weld, the Heat Affected Zones (HAZ), and the base metal were obtained in two different ways: through a correlation with the Vickers hardness and by means of the Small Punch Test (SPT). A study of the microstructure and tensile tests on the threaded studs and in the columns was also carried out. The research involved different types of stud qualities, tube wall thicknesses, and stud diameters. The work presented in this paper proved that in most cases, the welded joint between these studs and the RHS steel tubes present a reasonable static behavior that fulfils the requirements for the beam–column joints under static loading.


1923 ◽  
Vol 17 (2) ◽  
pp. 204-215
Author(s):  
Raymond G. Gettell

In the introduction to his readings in political philosophy, Professor Coker says, “since the time of Plato there has been, in every philosophic age, some inquiry as to the justification of political organization in general, as to the relative merits of different political forms, and as to the appropriate position and privileges of the individual as master, member, or subject of the political order of society. Why do we have political organization? What in our present condition do we owe to it? What future benefits may we properly expect to derive from it? Are its purposes characteristically manifold and changing, or are they ultimately reducible to a few limited objects or to some single end? What is its best form? Who should control it? What is its proper relation to the ideas and sentiments of the community at its basis? What spheres of individual and social life is it incompetent to enter? Philosophers and publicists of various types have sought to answer these questions in abstract terms.”If an analysis be made of the questions with which political thought has been concerned, it is found that emphasis was placed at various periods upon widely different types of problems. In the medieval period political controversy centered in the contest for supremacy between spiritual and temporal authorities; in the seventeenth and eighteenth centuries, the dominant interest was in the contest between monarchic and democratic theories of political organization; at present, the extent of state activities has come into prominence, and the connection between political and economic interests is especially close. Besides, political conditions have changed so greatly from age to age that the same problem had quite different meanings at different periods.


2017 ◽  
Vol 26 (6) ◽  
pp. 579-583 ◽  
Author(s):  
T. D. Cosco ◽  
K. Howse ◽  
C. Brayne

The extension of life does not appear to be slowing, representing a great achievement for mankind as well as a challenge for ageing populations. As we move towards an increasingly older population we will need to find novel ways for individuals to make the best of the challenges they face, as the likelihood of encountering some form of adversity increases with age. Resilience theories share a common idea that individuals who manage to navigate adversity and maintain high levels of functioning demonstrate resilience. Traditional models of healthy ageing suggest that having a high level of functioning across a number of domains is a requirement. The addition of adversity to the healthy ageing model via resilience makes this concept much more accessible and more amenable to the ageing population. Through asset-based approaches, such as the invoking of individual, social and environmental resources, it is hoped that greater resilience can be fostered at a population level. Interventions aimed at fostering greater resilience may take many forms; however, there is great potential to increase social and environmental resources through public policy interventions. The wellbeing of the individual must be the focus of these efforts; quality of life is an integral component to the enjoyment of additional years and should not be overlooked. Therefore, it will become increasingly important to use resilience as a public health concept and to intervene through policy to foster greater resilience by increasing resources available to older people. Fostering wellbeing in the face of increasing adversity has significant implications for ageing individuals and society as a whole.


Author(s):  
A. Yu. Bovsunivska A. Yu.

The article is devoted to the study of pragmatic aspects of the use of phraseology in the textual space of Carlos Ruiz Safón’s novel «Prisoner of Heaven». One of the defining features of the individual style of this well-known modern Spanish writer is the metaphoricity and figuration of aristic expression, the saturation of the text with phraseological units that play a significant role in creating a pragmatic charge of the work of art. Along with general linguistic phraseological units, which include commonly-used vocabulary, the author uses dialectal and authorial phraseological units, which is a feature of his individual style. All three designated groups of phraseological units mostly reflect the negative psychophysical and emotional state of the characters. The author uses dialectal, individually-authorial and modified phraseological units, which is a feature of his individual style. It is determined that transformation is one of the most productive and most effective ways to update linguistic means in works of art. Author’s modification of FU leads to a change in the semantics and structure of expression, gives it a more expressive or emotional coloring. Transformed phraseology is limited to individual usage and is subject to the context of the work. Modified FUs in the Zafón’s artistic space acquire certain aesthetic and artistic qualities. Their modification is mainly to create the desired stylistic effect – to achieve emotional or expressive expression, which increases the reader’s interest, focuses on the content, issues of the work, as well as reveals the potential expressive potential of the Spanish language. In the transformed FUs, not just a new meaning is traced, but a combination of the well-known and the occasional. The unique combination of different types of phraseological units in the novel is considered a manifestation of individual style and makes a representation of the individually-authorial linguistic picture of the world more expressive.


2021 ◽  
Vol 5 (3) ◽  
pp. 42-46
Author(s):  
Luiz Eduardo Toledo Avelar

The mandible is the most important bone structure of the facial makeup. Its morphology differs with respect to genetic factors, sexual dimorphism, and age. Among its particular characteristics is the ability to adapt with its counterpart, the base of the skull, conferring a dynamic quality of this bone, by the mechanism of constant remodeling. In order to understand the involvement of the mandible in the evaluation of the lower third of the face, a fractional analysis of its parts is necessary considering morphological parameters of the mandibular angle. The purpose of this study is to demonstrate the importance of the mandible as an instrument in the analysis of the lower third of the face, allowing the accomplishment of aesthetic treatment, respecting the individual characteristics.


2021 ◽  
Vol 11 (1) ◽  
pp. 29-33
Author(s):  
Anjana Karmacharya ◽  
Dashrath Kafle ◽  
Ram Bhakta Adhikari ◽  
Nirjalla Malla

Introduction: Retainers are used after all orthodontic treatment, to prevent or minimize relapse and recurrence. Among various retainers used, Hawley retainer and ‘invisible’ retainers are the most common. Most of the orthodontists favored permanent retention. It is obvious that the retention procedures are variable and depended largely on personal preferences, and there does not seem to be any consistent pattern in the application of retention methodologies. The  purpose of this study was to survey the retention protocols among orthodontists in Nepal. Materials and Method: The complete lists of the names and addresses of orthodontists in Nepal was obtained from the ODOAN. The questionnaire was sent to them which consisted of multiple-choice questions and short answer, related to background information of the individual orthodontist, retention use in general, the frequency of different types of bonded or removable retainers that are used, the retention protocol, the type of retainer used in specific situation. All statistical analyses were performed using the Statistical Package for Social Sciences (SPSS), version 12.0.1 (SPSS Inc, Chicago, Illinois, USA) Result: The survey questionnaires were completed by 90.42% of the 94 orthodontists of Nepal, 58.8% males and 41.2% females with a mean age of 36.7 years. Most of the orthodontists used a clear (vacuum) retainer (80%) in the maxilla and fixed bonded retainer in the mandible. Most of them prefer the use of retainer for a continuous 24 hours except during eating and brushing for 6 months to 1 year (56.5%) and if possible, for 1 to 2 years (28.2%). Conclusion: Majority of Nepalese orthodontists provide vacuum formed retainer on maxillary arch and bonded retainer in mandibular arch. There is no specific consensus on other type of retainers, duration of wear and follow up visits which is affected by various other factors.


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