Hybridization in the Family Esocidae

1965 ◽  
Vol 22 (5) ◽  
pp. 1261-1292 ◽  
Author(s):  
E. J. Crossman ◽  
Keen Buss

Of 11 possible hybrids of species in the family Esocidae, six were known from nature and they are reviewed. The occurrence of a seventh, Esox lucius × Esox americanus americanus, is recorded. Of 22 possible reciprocal combinations of these species, five were previously known, five are still unknown, and 12 are newly described here. These 12 are based on artificial hybrids of known gametic constitution. Data are given on: description (young and oldest material available); growth; fertility; vitality and meristics are compared with parent populations. The low level of interspecific sterility was surprising. Some interspecific sterility exists between the two largest (Esox masquinongy Mitchill, Esox lucius Linnaeus) and the two smallest (Esox americanus Gmelin) forms. Total sterility does not exist as artificially one or other of the reciprocals was successful in each cross, including Esox masquinongy × Esox americanus. The hybrids exhibited the blending and intermediate nature usual in fish hybrids but colour pattern seemed tied to a particular parent. In nature only certain species hybridize, but it would appear that incompatibility of gametes has proceeded only to a limited extent. Other factors such as distribution, habitat, size, and behavior may be preventing hybridization.

Author(s):  
Lisa M. Diamond ◽  
Molly R. Butterworth ◽  
Ritch C. Savin-Williams

The present chapter provides a review of some of the primary psychological issues confronting sexual minorities (i.e., individuals with same-sex attractions and relationships). Our goal is to provide a flexible set of preliminary questions that can be used to help sexual-minority clients to articulate their own idiosyncratic experiences and give voice to their own unique needs. We begin by addressing two of the most common and important clinical issues faced by sexual minorities: generalized “minority stress” and acceptance and validation from the family of origin. We then turn attention to the vast—and vastly underinvestigated—population of individuals with bisexual attractions and behavior, who actually constitute the majority of the sexual-minority population, despite having been systematically excluded from most prior research. We review the increasing body of research suggesting that individuals with bisexual patterns of attraction and behavior actually face greater mental health risks than those with exclusive same-sex attractions and behavior, and we explore potential processes and mechanisms underlying this phenomenon, focusing particular attention on issues of identity development and transition over the life span. We conclude by outlining a number of areas for future clinically oriented research.


2021 ◽  
pp. 0192513X2098555
Author(s):  
Shiv Ratan Agrawal

The present study was an attempt to identify the most prevailing means of digital devices and its impact as digital pollution on family and social interactions. Despite the obvious benefits of digital devices, in recent years researchers have taken more concern about its potential negative effect on human attitude and behavior, which in turn affects our society. A total of 613 usable responses were collected from Bangalore, India of excessive users of digital devices, such as a smartphone, computer/laptop, and television. All statistical analyses were performed using SPSS 23.0, AMOS 23.0, and SmartPLS 3.0. The results indicated that as the use of smartphone and computer/laptop increases, levels of digital pollution also increase, which in turn significantly triggers unfavorable impact on family and social interactions. The study indicated that digital pollution appears as an important predictor, which significantly affects social interaction unfavorably. The present study explored the various critical dimensions within this domain and delineated gaps in our knowledge of digital pollution. It was found that smartphones are more responsible for digital pollution among all the identified digital devices, followed by computer/laptop.


Author(s):  
Carol Simon ◽  
Guillermo San Martín ◽  
Georgina Robinson

Two new species of South African Syllidae of the genusSyllisLamarck, 1818 are described.Syllis unzimasp. nov. is characterized by having unidentate compound chaetae with long spines on margin, a characteristic colour pattern and its reproduction by vivipary. Vivipary is not common among the polychaetes, but most representatives occur in the family Syllidae Grube, 1850 (in five otherSyllisspecies, two species ofDentatisyllisPerkins, 1981 and two species ofParexogoneMesnil & Caullery, 1818).Syllis unzimasp. nov. differs from the other viviparous species in having large broods (>44 juveniles) which develop synchronously. Development of the juveniles is similar to that of free-spawningSyllisspecies, but the appearance of the first pair of eyespots and the differentiation of the pharynx and proventricle occur later inS. unzima.Syllis amicarmillarissp. nov., is characterized by having an elongated body with relatively short, fusiform dorsal cirri and the presence of one or two pseudosimple chaeta on midbody parapodia by loss of blade and enlargement of shaft.Syllis unzimasp. nov. was found in high densities on culturedHolothuria scabraJaeger, 1833 with single specimens found on a culturedCrassostrea gigasThunberg, 1793 and on coralline algae, respectively, whileS. amicarmillariswas found mainly in sediment outside an abalone farm and less frequently on culturedHaliotis midaeLinnaeus, 1758. We discuss the possible benefits of the association withH. scabratoS. unzimasp. nov.


1980 ◽  
Vol 12 (10) ◽  
pp. 1103-1118 ◽  
Author(s):  
Clare M Stapleton

The conventional concept of linear progression through a traditional life cycle underlies much of social science theory. The utility of retaining the traditional life-cycle framework has declined rapidly as patterns of family and nonfamily structure and behavior have become more diversified. A more comprehensive framework which encompasses these new household types is suggested. The utility of this expanded life-cycle model is explored, with particular reference to single-headed family households and primary households.


Author(s):  
Ahmad Yanizon

Perkembangan moral pada masa kanak-kanak masih dalam tingkat yang rendah. Hal ini disebabkan karena perkembangan intelektual anak-anak belum mencapai titik di mana ia dapat mempelajari atau menerapkan prinsip-prinsip abstrak tentang benar dan salah. Orang tua merupakan tempat pertama terbentuknya moral anak. Kasih sayang yang diberikan orang tua terhadap anak, membangun sistem interaksi yang bermoral antara anak dengan orang lain. Hubungan dengan orang tua yang hangat, ramah, gembira dan menunjukkan sikap kasih sayang merupakan pupuk bagi perkembangan moral anak. Dengan demikian, maka penting sekali peranan orang tua di keluarga dalam perkembangan moral anak, karena orang tua merupakan pendidik pertama yang diterima anak ketika mereka terlahir kedunia. Adapun peran orang tua dalam pembentukan moral anak dilihat dari pegembangan pandangan moral, perasaan moral dan tingkah laku moral. Ketiga unsur tersebut terbentuk dari interaksi orang tua anak dalam keluarga yang berlangsung dari anak-anak hingga dewasa. Oleh karena itu, sudah seharusnyalah orang tua berperan sebagai teladan yang baik di keluarga untuk menjadi contoh bagi anak-anaknya.Kata Kunci: Moral, Peran Orang Tua Moral development in childhood is still in a low level. It is because of the children’s intellectual development has not already reached the level where he is able to learn or apply the abstract principles about right and wrong things. Parental is the first point of children’s moral formation. Parents’ Affection toward children, build their moral interaction systems. A warm, friendly, happy relationship and affection between parents and children are children’s moral development fertilizer. Thus, parents’ roles toward children’s moral development are very essential, because parents are the first educators for children when they got born into the world. Parents’ roles toward children’s moral formation are viewed from children’s developing moral vision, a sense of morality and moral behavior. These three elements were formed from parents and children’s interaction in a family since childhood to adulthood. Therefore, it is a must for parents to figure well in the family to be as a good example for their children.Keywords: Moral, Parents’ Role  


2020 ◽  
Vol 28 (4) ◽  
pp. 715-747
Author(s):  
Clarie Breen ◽  
Jenny Krutzinna ◽  
Katre Luhamaa ◽  
Marit Skivenes

Abstract This paper examines what set of familial circumstances allow for the justifiable interference with the right to respect for family life under Article 8, echr. We analyse all the Courts’ judgments on adoptions from care to find out what the Court means by a “family unit” and the “child´s best interest”. Our analysis show that the status and respect of the child’s de facto family life is changing. This resonates with a view that children do not only have formal rights, but that they are recognised as individuals within the family unit that states and courts must address directly. Family is both biological parents and child relationships, as well between children and foster parents, and to a more limited extent between siblings themselves. The Court’s understanding of family is in line with the theoretical literature, wherein the concept of family reflects the bonds created by personal, caring relationships and activities.


2017 ◽  
pp. 695-703 ◽  
Author(s):  
J. BABKOVÁ DURDIAKOVÁ ◽  
P. CELEC ◽  
I. KOBOROVÁ ◽  
T. SEDLÁČKOVÁ ◽  
G. MINÁRIK ◽  
...  

Testosterone has been widely investigated in associations with many aspects of social interactions, emotions and behavior. No research has been conducted on its contribution to the variability of love styles in human. The aim of this paper was to uncover the possible relationship between not only the actual plasma testosterone levels, but also the prenatal testosterone level (expressed as 2D:4D ratio) and the sensitivity of androgen receptor and love typology in young healthy men. There are six love styles which are primary including Eros (passionate romantic love), Ludus (playful) and Storge (friendly) and secondary love consisting of Mania (obsessive), Pragma (practical realistic) and Agape (altruistic). Our results pointed out that low testosterone concentrations are associated with higher score for Eros, Ludus, Pragma, Mania love style. No significant association was proved for other tested parameters of androgenicity (2D:4D, sensitivity of androgen receptor) and love style after correction was applied. Different attitudes and behavior in relationships do have a biological foundation related to endogenous testosterone levels in plasma. Future studies should address questions about the family and social background of participants to differentiate here between moral rules or/and social-conventional rules.


Author(s):  
Agnieszka Kozera

The main aim of the article was to show the importance of the agricultural tax as a source of own income of rural communes in Poland in 2004-2015. In order to determine the fiscal importance of the tax, the amount and share of income from the agricultural tax in the own income of rural communes were compared to other types of communes. In addition, the amount of income lost due to the agricultural tax was analyzed. The study showed that the agricultural tax as a source of own income plays the most important role in the budgets of rural communes, although the fiscal role of the tax in these local government sector entities is getting smaller. The agricultural taxation system, which is ineffective from the point of view of communes’ financial self-sufficiency and the construction of which is to a very limited extent related to the real amount of production and income in agriculture, is reflected in the low level of own income potential of rural communes.


Author(s):  
Fitria Nuraini ◽  
Toni Anwar Mahmud

The title of the research is The Role of Parents in Shaping the Character of Children in the Globalization Era in Masigit Village, Citangkil Village, Cilegon City. In the current era of globalization, there are many influences, both positive and negative. This negative influence must be avoided because it can affect a person's habits, attitudes, and behavior. Character education is one of the important things that must be applied in the family environment. Parents must reflect good attitudes and habits in interacting in the family environment and in the community environment. This is important for fostering good attitudes and habits in children. The formulation of the problem in this study is how the role of parents in improving children's character in the era of globalization, Masigit Village, Citangkil Village, Cilegon City. What factors can influence the formation of children's character in the era of globalization, Masigit Village, Citangkil Village, Cilegon City. What efforts are made by parents in shaping children's character in the era of globalization in Masigit Village, Citangkil Village, Cilegon City. This study aims to determine the role of parents in shaping children's character in the era of globalization in Masigit Village, Citangkil Village, Cilegon City. The subjects of this study were 6 parents and 6 children in Masigit Village, Citangkil Village, Cilegon City. This research uses descriptive qualitative research methods. Data analysis in qualitative research is by doing data reduction, data presentation, and data verification. The results of this study indicate that the role of parents in Masigit Village, Citangkil Village, Cilegon City has been good in shaping children's character in the era of globalization.


2017 ◽  
Vol 5 (1) ◽  
pp. 197-224
Author(s):  
Habrun Habrun

Islamic education in the family means education provided by members of the family, especially parents, to their children in the family environment to form the child's personality in order to be a muslim in which the attitude and behavior is in accordance with the teachings of Islam. The motivation of parent’s devotion in educating their children is solely for the sake of natural love, so, in this atmosphere of love, the process of education takes place well since the child is dependent to the family. Urgency of Islamic education in the family in building children’s noble character is the realization of the ideal human; intelligent and fear Allah SWT. إن التربية الإسلامية في الأسرة هي التربية التي يقوم بها أعضاء الأسرة خاصة الوالدين لأولادهما في وسط الأسرة لبناء السلوك حتى يكون الولد مسلما يتخلق بأخلاق تتفق مع تعاليم الإسلام. وحافز الأسرة في تربية الأولاد مؤسسة على الحب الفطري، فمن ظلال هذا الحب الفطري تجري عملية التربية بصورة جيدة في خلال سن الولد الذي يكون تحت مسؤولية الأسرة . وتكمن أهمية التربية الإسلامية في الأسرة لبناء الأخلاق الكريمة في تحقيق الشخصية المثالية، وهي الإنسان الذي يتقي الله سبحانه وتعالى وذكي. مفتاح الكلمات: التربية الإسلامية، الأسرة، الأخلاق الكريمة. Pendidikan Islam dalam keluarga yaitu pendidikan yang diberikan anggota kelurga terutama orang tua kepada anaknya dalam lingkungan keluarga itu sendiri untuk membentuk kepribadian anak menjadi muslim dengan adanya perubahan sikap dan tingkah laku yang sesuai dengan ajaran Islam. Motivasi pengabdian keluarga (ayah-ibu) dalam mendidik anak-anaknya semata-mata demi cinta kasih yang kodrati, sehingga dalam suasana cinta kasih dan kemesraan inilah proses pendidikan ini berlangsung dengan baik seumur anak dalam tanggungan utama keluarga. Urgensi Pendidikan Islam di lingkungan keluarga dalam pembinaan akhlak mulia anak adalah terwujudnya manusia yang ideal, yaitu anak yang bertakwa kepada Allah SWT. dan cerdas.


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