scholarly journals Strain crossing in mrigal (Cirrhinus cirrhosus): An avenue to persuade heterosis in F1 generation of wild×hatchery hybrid

2015 ◽  
Vol 3 (2) ◽  
pp. 245
Author(s):  
Md. Ashkar Bin Sayeed

While the increase of the yield of commercially trendy farmed fishes are of special priority in aquaculture, a number of handy technologies are indispensable to realize the surplus production aiming to feed the growing population. As a genetic means of doing this, hybridization technology has been being used for years, because it can produce hybrid vigor through inducing heterosis. Similar attempt was made in mrigal, Cirrhinus cirrhosus, by crossing the hatchery strain with the riverine strain to investigate the heterotic effect in the progeny the species could generate through such intra-specific hybridization. Mean fertilization and hatching rates in hybrids were found to be lower by 7% and 4% respectively than that in purebreds, which envisioned to be trivial to impact the purpose of crossing. Comparative growth test between purebreds and hybrids showed significant differences (p< 0.05) in weight and length, and resulted 30.51% heterosis in hybrid mrigal. This experiment can be considered as a preliminary investigation to motivate the application of strain crossing in mrigal farming and the result found thereof can be used as a clue to optimize this growth boosting technique for the species through further research.

1907 ◽  
Vol 27 ◽  
pp. 88-92 ◽  
Author(s):  
Alexander D. Ross

Since the discovery by Heusler in 1903 of a magnetic alloy of copper, manganese, and aluminium, considerable interest has been aroused by the peculiarities of its properties and the difficulty of their explanation. In the summer of 1905 a preliminary investigation of a sample of the alloy was made in the Physical Laboratory of Glasgow University, and the results obtained have been published in a paper by Professor A. Gray.


Author(s):  
Thomas Nadelhoffer

Abstract: My present goal is to explore some possible responses pure (or strict) retributivists might have to the gathering of empirical data on psychopaths. In addressing this issue, I will first briefly examine the strides researchers have recently made in understanding the nature of psychopathy, paying particular attention to work on the neural and genetic components of the disorder (§1). Then, I will survey several ways that a pure retributivist might respond to this data (including giving up on pure retributivism altogether and adopting instead a mixed theory of punishment that incorporates both forward-looking and backward-looking elements). (§2). As we will see, the retributivist has a fairly limited range of appealing options in this context. But my primary task here isn't to somehow refute retributivism (which comes in too many varieties to adequately address in a single paper). Rather, I am mainly interested in showing that the problem of psychopathy is relevant when it comes to our philosophical theorizing about punishment. In this sense, my over-arching task is methodological. I survey the interdisciplinary terrain and highlight some interesting and important connections between the research on the philosophy and the psychology of psychopathy.Keywords: Retributivism; Philosophy of punishment; PsychopathyResumo: O objetivo deste artigo é explorar possíveis respostas que retributivistas puros podem ter à coleta de dados empíricos sobre psicopatas. Ao tratar deste assunto, primeiro examinarei brevemente os recentes avanços de pesquisadores em relação ao entendimento da natureza da psicopatia, dando atenção especial ao trabalho acerca dos components neurais e genéticos da doença (§1). Após, demonstrarei diversas maneiras pelas quais um retributivista puro poderia enfrentar essas novas questões (incluindo desistir do retributivismo puro para adotar uma teoria punitiva mista que incorpora ambos elementos voltados para o futuro quanto para o passado) (§2). Como veremos, o retributivista tem uma gama bastante limitada de opções que sejam atraentes neste contexto. Mas a minha tarefa primordial não é a de refutar o retributivismo (que vem em variedades muito numerosas para serem trabalhadas em um único artigo). Em vez disso, estou preocupado em demonstrar que o problema da psicopatia é relevante quando pensamos sobre a nossa teorização filosófica acerca da punição. Nesse sentido, minha tarefa é metodológica. Eu avalio o terreno interdisciplinar e enfatizo algumas conexões importantes e interessantes entre a pesquisa na filosofia e na psicologia da psicopatia.Palavras-chave: Retributivismo; Filosofia da punição; Psicopatia


Genetika ◽  
2016 ◽  
Vol 48 (3) ◽  
pp. 1077-1086 ◽  
Author(s):  
Ana Marjanovic-Jeromela ◽  
Aleksandra Dimitrijevic ◽  
Sreten Terzic ◽  
Aleksandar Mikic ◽  
Jovanka Atlagic ◽  
...  

Rapeseed is one of the most important sources of edible oil, raw material for industry, as well as feed. The yield and quality of rapeseed have significantly been improved in recent decades as a result of intensive breeding and optimized production technology. The application of Mendel's rules in introducing monogenic traits has also contributed to success in rapeseed breeding. Rule 1, which refers to the uniformity of F1 generation, is now the basis of widespread development of rapeseed hybrids. Rule 2, dealing with genetic segregation in the F2 generation, is the basis for understanding the process of breeding lines. Rule 3, regarding the independent segregation of genes and traits, while exempting linked traits, is the basis of combining different desirable properties by selection. In the last few decades, the systematic use of Mendel's rules has contributed to the improvement of many properties of rapeseed, including tolerance to biotic and abiotic stress, yield and seed quality. Particular progress has been made in breeding for resistance to diseases, including the identification of molecular markers for marker-assisted selection. The next objective of rapeseed breeding is to create varieties with improved tolerance to environmental stress (e.g. frost, heat, and drought). Based on Mendel's rules, classical breeding methods and the latest developments in the field of molecular genetics and breeding, future progress is expected in the field of rapeseed breeding with an emphasis on polygenic, quantitative traits such as biomass, seed, and oil yield.


Author(s):  
Svetlana V. Verkhoturova ◽  
Oksana V. Pavlenko

This article examines the current theoretical and practical issues of criminal proceedings against minors in the light of recent changes in the criminal procedure legislation. The research was conducted using formal-logical and dialectic methods, as well as the comparative-legal method when analyzing criminal and legal proceedings against minors. The authors conclude that a number of existing criminal procedure norms regulating the preliminary investigation and consideration of criminal cases in court against minors do not meet international standards and require further improvement. This article draws attention to the procedural errors of investigators (inquirers) and judges that are allowed in the process of investigation and consideration of criminal cases in court in relation to minor suspects, accused persons, defendants. The lack of sufficient legal regulation in the criminal procedure law is called the main reason for the mistakes made in the criminal proceedings against minors. In order to solve the identified problems, the authors propose to make appropriate additions to the current criminal procedure law.


Water ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2238 ◽  
Author(s):  
Roksana Kruć ◽  
Krzysztof Dragon ◽  
Józef Górski

Studies on the presence of pharmaceuticals in water were carried out on the riverbank filtration site, Krajkowo–Poznań (Poland). A preliminary investigation conducted in 3 sampling points showed the presence of pharmaceuticals in both surface water and bank filtrate. Based on the above, an extended analysis was made in July, August and October 2018 and included surface water and wells located at a different distance (5–250 m) and travel time (1–150 days) from source water (Warta River). Firstly, 75 compounds (antibiotics, anti-inflammatory and analgesic drugs, psychotropic drugs, x-ray agents and β-blockers) were tested and 25 of them were detected in the river or bank filtrate. The highest concentrations were observed in source water and then were reduced along the flow path. The sampling points located close to the river (<38 m) are characterized by low removal. Higher removal is visible in wells located 64–82 m away from the river, while 250 m from the river most compounds are completely attenuated. Carbamazepine, gabapentin, tramadol, oxypurinol, fluconazole, and lamotrigine are the most common compounds. Some of the tested parameters occur only in the river water, e.g., iopromide, diclofenac, iohexol, clindamycin, fexofenadine and valsartan. The research shows that at the site, a significant attenuation of pharmaceuticals can be achieved at travel times of 40–50 days and distances of 60–80 m, although higher values are ensured when the well is located more than 250 m away.


Lex Russica ◽  
2021 ◽  
pp. 52-61
Author(s):  
N. A. Danilova ◽  
E. V. Elagina ◽  
M. A. Grigorieva

The paper analyzes the errors committed by law enforcement officers in the implementation of various types of special knowledge at all stages of criminal proceedings. Shortcomings under consideration are differentiated into shortcomings committed in the production of investigative actions, during which objects were seized, subsequently presented for an expert examination, when forensic examinations are appointed, in the production of forensic examinations, when examining the expert's opinion by officials of the preliminary investigation bodies and the prosecutor's office. At the same time, such errors are periodically repeated and multiply: forensic examinations, the need for the production of which is caused by the specifics of the crime being investigated, the current investigative situation and, being justified by specially developed recommendations, are not scheduled; the questions posed to the experts do not cover all the circumstances the establishment of which is possible only through the involvement of persons knowledgeable in a particular area of special knowledge; the questions themselves are not always directly related to the expert's specialization and the type of examination; the presence of proper qualifications of a person involved as an expert is not verified, etc.Without setting themselves the task of analyzing all or most of these errors, the authors thoroughly consider the most serious errors using specific examples from judicial investigative practice and they come to the conclusion that the effectiveness and efficiency of using the expert's conclusion in proving is possible only under the context of impeccable observance by officials of preliminary investigation bodies, forensic experts and heads of forensic institutions of the provisions of the Criminal Procedure Law, the Federal Law "On State Forensic Expert Activity", departmental regulations and forensic recommendations.


The adoption of the galvanometer and its employment for clinical purposes dates from the introduction of the newly modelled instrument or string galvanometer by Einthoven. The string galvanometer has proved an efficient instrument in deciphering all forms of irregularity of the ventricle, and has given clear interpretations of all derangements of the heart in which there is disorder in the sequence of contraction in its chambers. This new chapter of clinical medicine is rapidly closing, but while it has been written, a number of isolated observations have been placed on record, from which it is clear that the instrument may be employed for a further purpose. It is probable that it will give information of much value where the action of the heart, as a whole, is perfectly regular, and where the contraction, originating at the normal site of impulse formation, namely, the sino-auricular node, progresses at normal rates through the heart and along definite and recognised channels. Thus, it is known that in certain instances of cardiac enlargement some of the electric variations portrayed in the curves are exaggerated, decreased, or inverted, as compared to the normal and to each other. But it is evident that little progress can be made in the study of this subject until we have full knowledge of the normal electrocardiogram, and especially of the limits which may be reached by its several peaks and depressions in healthy subjects. As an initial step towards this end we have examined the curves of a large number of healthy young adults.


Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 252
Author(s):  
Mila Cascajares ◽  
Alfredo Alcayde ◽  
Esther Salmerón-Manzano ◽  
Francisco Manzano-Agugliaro

Agriculture as an economic activity and agronomy as a science must provide food for a constantly growing population. Research in this field is therefore becoming increasingly essential. Much of the research is carried out in academic institutions and then developed in the private sector. Patents do not have to be issued through scientific institutions. Patents from scientific institutions are intended to have a certain economic return on the investment made in research when the patent is transferred to industry. A bibliometric analysis was carried out using the Scopus and SciVal databases. This study analyses all the research carried out in the field of agronomy and related sciences (Agricultural and Biological Sciences category of Scopus database) by EU-27 countries, which has been cited in at least one international patent. The data show that out of about 1 million published works only about 28,000 have been used as a source of patents. This study highlights the main countries and institutions in terms of this transfer. Among these, Germany, France and Spain stand out in absolute terms, but considering the degree of specialization. Regarding their specialization the institution ranking is led by Swedish University of Agricultural Sciences (58%), AgroParisTech (52%), Wageningen University & Research (48%), and INRAE (38%). It also analyses which journals used for this transfer are most important. For these publications more than 90% of the articles have had a higher-than-expected citation level for the year of publication, the type of publication and the discipline in which they are categorized. The most-obtained research fields can be distinguished as those related to genetics or mo-lecular biology, those related to specific foods, such as cheeses, milk, breads or oils, and, thirdly, the group covering food-related constituents such as caseins, probiotics, glutens, or starch.


2009 ◽  
Vol 12 (1) ◽  
pp. 31-40 ◽  
Author(s):  
Clare E. Holleley ◽  
Richard A. Nichols ◽  
Michael R. Whitehead ◽  
Melissa R. Gunn ◽  
Jyoutsna Gupta ◽  
...  

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