scholarly journals 12-talspigerne i medierne: Rammesætning og stereotypificering af højtpræsterende piger og kvinder i det danske uddannelsessystem [Straight-A girls in the media: The framing and stereotypification of high performance girls and women in the Danish system of education]

Author(s):  
Kenneth Reinecke Hansen ◽  
Jonas Nygaard Blom
Keyword(s):  
2021 ◽  
Vol 94 (1117) ◽  
pp. 20200975
Author(s):  
Natasha Davendralingam ◽  
Neil J Sebire ◽  
Owen J Arthurs ◽  
Susan C Shelmerdine

Artificial intelligence (AI) has received widespread and growing interest in healthcare, as a method to save time, cost and improve efficiencies. The high-performance statistics and diagnostic accuracies reported by using AI algorithms (with respect to predefined reference standards), particularly from image pattern recognition studies, have resulted in extensive applications proposed for clinical radiology, especially for enhanced image interpretation. Whilst certain sub-speciality areas in radiology, such as those relating to cancer screening, have received wide-spread attention in the media and scientific community, children’s imaging has been hitherto neglected. In this article, we discuss a variety of possible ‘use cases’ in paediatric radiology from a patient pathway perspective where AI has either been implemented or shown early-stage feasibility, while also taking inspiration from the adult literature to propose potential areas for future development. We aim to demonstrate how a ‘future, enhanced paediatric radiology service’ could operate and to stimulate further discussion with avenues for research.


MRS Bulletin ◽  
1996 ◽  
Vol 21 (9) ◽  
pp. 23-27 ◽  
Author(s):  
James A. Brug ◽  
Thomas C. Anthony ◽  
Janice H. Nickel

The materials used in magnetic recording heads have recently received a tremendous amount of attention. This has been the result of a fortunate set of circumstances. Ever-increasing demands for information storage, especially for graphics-intensive applications, have necessitated unprecedented increases in disk-drive areal densities. Combined with this are recent discoveries in the area of magnetoresistive materials, enabling the design and fabrication of much more sensitive recording heads. The end result is a flurry of activity that has come to dominate the field of magnetics. This article will explore choices for magnetoresistive read head materials, with an emphasis on the materials challenges.The recording heads that are used in high-performance disk drives typically consist of separate magnetoresistive read and inductive write heads (see Figure 1) where previously a single inductive head performed both functions. Separation of the two heads allows each to be optimized for their individual function, an essential factor in enabling disk drives to contain gigabytes of storage. The write head is the simpler of the two, consisting of a U-shaped ferromagnet surrounding a set of coils. The ends of the ferromagnet are the magnetic poles defining the write gap. When current passes through the coils, a field bridges the gap, setting the orientation of the magnetization in the media. Information is stored by changing the polarity of the current in order to write a pattern of magnetic domains in the media. The materials used in write poles will be reviewed in the section, Write Head Materials.


2002 ◽  
Vol 68 (7) ◽  
pp. 3545-3549 ◽  
Author(s):  
Hani El-Nezami ◽  
Nektaria Polychronaki ◽  
Seppo Salminen ◽  
Hannu Mykkänen

ABSTRACT The interaction between two Fusarium mycotoxins, zearalenone (ZEN) and its derivative ά-zearalenol (ά-ZOL), with two food-grade strains of Lactobacillus was investigated. The mycotoxins (2 μg ml−1) were incubated with either Lactobacillus rhamnosus strain GG or L. rhamnosus strain LC705. A considerable proportion (38 to 46%) of both toxins was recovered from the bacterial pellet, and no degradation products of ZEN and ά-ZOL were detected in the high-performance liquid chromatograms of the supernatant of the culturing media and the methanol extract of the pellet. Both heat-treated and acid-treated bacteria were capable of removing the toxins, indicating that binding, not metabolism, is the mechanism by which the toxins are removed from the media. Binding of ZEN or ά-ZOL by lyophilized L. rhamnosus GG and L. rhamnosus LC705 was a rapid reaction: approximately 55% of the toxins were bound instantly after mixing with the bacteria. Binding was dependent on the bacterial concentration, and coincubation of ZEN with ά-ZOL significantly affected the percentage of the toxin bound, indicating that these toxins may share the same binding site on the bacterial surface. These results can be exploited in developing a new approach for detoxification of mycotoxins from foods and feeds.


2009 ◽  
Vol 72 (1) ◽  
pp. 189-192 ◽  
Author(s):  
MOHAMMAD R. FAZELI ◽  
M. HAJIMOHAMMADALI ◽  
AZAMOSSADAT MOSHKANI ◽  
NASRIN SAMADI ◽  
HOSSEIN JAMALIFAR ◽  
...  

Some foods are prone to contamination with aflatoxins, with detrimental effect on human health. Lactic acid bacteria have been reported to bind aflatoxins and remove them from foods and feeds. Reduction of aflatoxin B1 (AFB1) from the liquid media by the autochthonous lactic acid bacteria (Lactobacillus casei, Lactobacillus plantarum, and Lactobacillus fermentum) isolated from traditional Iranian sourdough and dairy products is reported in the current study. The effect of incubation time on the binding capacity of the strains to AFB1 was also investigated. Duplicates of individual bacteria with population equivalent to 2 × 1010 CFU/ml were incubated in the presence of AFB1 at 37°C for a period of 72 h, and the amounts of unbound AFB1 were quantitated by reverse-phase high-performance liquid chromatography. All the strains were capable of removal of AFB1, and the reduction of AFB1 ranged from 25 to 61% throughout the incubation period. Removal of AFB1 was a rapid process, with approximately 61 and 56% of the toxin taken instantly by L. fermentum and L. plantarum, respectively. Binding was of a reversible nature, and some of the bound AFB1 was released into the media by the repeated centrifugation and resuspension of the cell pellets. The stability of the bacteria–toxin complex was strain dependent, and L. casei was a stronger binder of AFB1 compared with the other bacteria. No toxin release was observed after 24 h. These findings tend to suggest that certain novel probiotic bacteria with high aflatoxin binding capacity could be selected for detoxification of foods.


2021 ◽  
Vol 6 (1) ◽  
pp. 86-96
Author(s):  
Nagoor Meera Bin Abdullah ◽  
Mohan Govindasamy ◽  
Megat Shahriman Zaharudin ◽  
Subramanian Raman Nair

The article elaborates on the achievement of the Malaysian athletes with disabilities locally and also in international scenes. Malaysian athletes start to participate in international competition since 1962, and local games been organized back in 1982 with the introduction of the Paralympic Games. The article also illustrates the medal achievement where Malaysian contingent achieves a total of 1700 medals at the ASEAN Para Games from 2001-2017. In FESPIC and Asian Para Games, a total of 582 medals was won from the year 1982-2018. At the FESPIC and Asian Youth Para Games, a total of 189 medals won from the year 2003-2017. The highest achievement came from the Paralympic games as Malaysian won 11 medals in total from the year 1962-2016. More need to be done to establish para sports in Malaysia with the support of every parties including the government and the media.


2016 ◽  
Vol 24 (2) ◽  
Author(s):  
O. Сhayka ◽  
T. Peretjatko ◽  
S. Gudz ◽  
A. Halushka

The main goal of the work was to study the utilization of fumarate by sulfur-reducing bacteria Desulfuromonas sp. under different growth conditions and accumulation of hydrogen sulfide by bacteria in the media with sulfur and different electron donors. Sulfur-reducing bacteria Desulfuromonas sp., isolated from soil in Yazivske sulfur deposit, were used in the reasearch. Bacteria were grown in the medium Postgate C without sulfates. The content of hydrogen sulfide was determined by formation of methylene blue. The content of organic acids (fumarate, succinate, lactate, acetate) was determined by high performance liquid chromatography (HPLC). The biomass of cells was determined by the photoelectrocolorymetry method using KFK-3. The highest level of accumulation of hydrogen sulfide by bacteria Desulfuromonas sp. was found in media with sodium lactate and sodium pyruvate. The maximal concentration of hydrogen sulfide was 1.9 mM. Maximal accumulation of biomass was observed in the media with malate, lactate and fumarate with the presence of elemental sulfur. Sulfur-reducing bacteria Desulfuromonas sp. are able to utilize fumarate as an electron donor and acceptor in the absence of elemental sulfur in the medium. After the incubation of Desulfuromonas sp. in the medium with fumarate, chromatographic analysis of culture liquid showed that fumarate is converted to succinate and small quantities of acetate The presence of acetate is, probably, due to the particularaties of the functioning of citric acid cycle in bacteria of the genus Desulfuromonas. Consequently, the results indicate that the fumarate serves as a donor and acceptor of electrons.The simultaneous introduction of two electron donors – fumarate and elemental sulfur – was accompanied by inhibition of sulfur reduction. After an additional source of carbon (sodium lactate) and electron acceptor (elemental sulfur) was added to the medium with fumarate a fivefold increase of sulfidogenic activity was observed. Thus, regulation of respiration in bacteria Desulfuromonas sp. is directed to the primary utilization of the most energetically favorable electron acceptors. 


2013 ◽  
Vol 554-557 ◽  
pp. 2062-2071 ◽  
Author(s):  
Fritz Klocke ◽  
Dieter Lung ◽  
Alexander Krämer ◽  
Tolga Cayli ◽  
Hubertus Sangermann

Besides developments in the area of dry machining and minimum quantity lubrication, the use of coolant lubricants is still essential when machining high alloyed steels or heat resistant materials like titanium and nickel based alloys. Experts agree that this fact will not change in the next decade. For this reason it is necessary to use coolant lubricants as effectively as possible to maximise their positive effect on productivity and process stability. High-performance cooling strategies like high-pressure cooling and cooling with cold gases (cryogenic cooling) have received increased attention in the last years. Through the targeted supply of coolant lubricants to the cutting site it is possible to decrease tool wear, increase cutting speeds, guarantee defined chip breakage and chip transport and – in terms of cryogenic cooling – waive part cleaning. This paper shows current research results in the above mentioned field. Since the performance of a high-pressure coolant lubricant supply in turning difficult to cut materials has been shown in many previous papers, this paper focuses on the quantification of the potential in turning different steels, namely quenched and tempered but also stainless steel in comparison to the conventional flood cooling. Since energy efficiency is very crucial, pressure and flow rate have to be adjusted carefully and in accordance with the cutting parameters to guarantee best results with less energy. Moreover the effects of cryogenic cooling will be evaluated in comparison to high-pressure cooling and conventional flood cooling. In latter field, cutting tests were carried out under variation of the flow rate in order to find the minimum required value for a certain machining task with the overall aim to prevent waste of the media used. Especially in cryogenic cooling technologies, many fundamental research regarding the working mechanisms but also further developments in cutting tool and machine tool technology are still necessary to make this technology ready for industrial use.


Author(s):  
Srijeeta Saha Shairee Ganguly and Dolanchapa Sikdar

Anthocyanin pigments are readily degraded during processing and storage of foodstuffs that can have a dramatic impact on color quality and may also affect the nutritional properties. Total anthocyanin pigment content and indices for polymeric color and browning are easily measured with simple spectrophotometric methods. Once individual pigments are identified, their changes can be monitored by high-performance liquid chromatography (HPLC). The edible fruits of 12 plants were extracted in methanol and subjected to solvent–solvent partitioning to yield three fractions, hexane, ethyl acetate, and aqueous. A number of factors affecting anthocyanin stability and color are discussed in this review. Anthocyanins are probably the most spectacular of plant pigments since they are responsible for most of the red, purple and blue pigmentation of flowers, hits and vegetables. However, because of their highly reactive nature, anthocyanins readily degrade, or react with other constituents in the media, to form colorless or brown colored compounds. The presence of an oxonium ion adjacent to carbon 2 makes the anthocyanins particularly susceptible to nucleophilic attack by such compounds as sulfur dioxide, ascorbic acid, hydrogen peroxide and even water. Loss of anthocyanin pigmentation also occurs in the presence of oxygen and various enzymes, and as a result of high temperature processing. Certain degree of pigment stabilization may be conferred by acylation with various organic acids, co pigmentation, self-association and/or metal chelation. In addition, pH has a marked effect on anthocyanin stability, and on the color of media containing these pigments. A number of anthocyanin-rich sources have been investigated for their potential as commercial pigment extracts. Although their application is primarily limited to acidic media, continued research on the chemistry of anthocyanins may lead to application and stabilization of these pigments in a wider variety of food products.


Author(s):  
Fábio Souza de Oliveira ◽  
Cláudio Márcio Oliveira

ResumoO presente estudo teve como objetivo analisar as possíveis influências das redes sociais sobre as compreensões dos estudantes da educação básica a respeito dos elementos da cultura corporal. Participaram da pesquisa cento e vinte e oito alunos do ensino fundamental II, de uma escola pública estadual da cidade de Feira de Santana. Verificamos neste estudo a presença de um modelo de voleibol que foi instituído antes mesmo do tratamento pedagógico do voleibol na escola, o voleibol midiático, de alto rendimento. Conclui-se que, através da abordagem mídia-educativa, é possível propor resistência às construções fragmentadas propostas pelas mídias, particularmente pelas redes sociais virtuais, a respeito dos elementos da Educação Física.Palavras-chave: Mídia-Educação. Educação Física Escolar. Redes Sociais Virtuais.Body culture: influences of virtual social networks about the students understandingAbstractThis study aimed to analyze the possible influences of social networks about the Basic Education students understanding regarding the elements of body culture. One hundred twenty-eight elementary school students from a state public school in the city of Feira de Santana participated in the research. In this study, we verified the presence of a volleyball model that was instituted even before the pedagogical treatment of volleyball at school, high-performance media volleyball. It was concluded that, through the media-educational approach, it is possible to propose resistance to the fragmented constructions proposed by the media, particularly through virtual social networks, regarding the elements of Physical Education.Keywords: Media-Education. School Physical Education. Virtual Social Networks.Cultura corporal: influencias de las redes sociales virtuales en la comprensión de los estudiantesResumenEste estudio tuvo como objetivo analizar las posibles influencias de las redes sociales en la comprensión de los estudiantes de Educación Básica con respecto a los elementos de la cultura corporal. Ciento veintiocho estudiantes de primaria de una escuela pública estatal en la ciudad de Feira de Santana participaron en la investigación. En este estudio, verificamos la presencia de un modelo de voleibol que se instituyó incluso antes del tratamiento pedagógico del voleibol en la escuela, voleibol mediático de alto rendimiento. Concluimos que, a través del enfoque mediático-educativo, es posible proponer resistencia a las construcciones fragmentadas propuestas por los medios, particularmente a través de redes sociales virtuales, con respecto a los elementos de la Educación Física.Palabras clave: Média-Educación. Educación Física Escolar. Redes Sociales Virtuales.


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