221 research outputs found
The Effects of Selected Training Intensities and Durations on Blood Cholesterol and Selected Anthropometric Measurements
Physical inactivity, due to automation and our busy mode of living, has contributed to a health problem in modern society. When obesity, high-fat diets, cigarette smoking, and stress are added, the end-product is an alarming increase in incidence of diseases of the heart and lungs. Admittedly, such diseases are multifactorial in cause, but inactivity appears to assume an increasingly important role. Exercise in relation to preventative and rehabilitative medicine, however, is a new and rapid changing field of research. Consequently, the knowledge concerning physical conditioning and training programs is limited and inadequate. Therefore, educators in health and physical education are expected to apply modern specific techniques and provide the much needed data. The purpose of this study was to investigate the effects of various training intensities and durations on blood cholesterol percentage body fat and body weight. (A concurrent study was conducted where the parameters of maximal oxygen uptake, maximal oxygen pulse, maximal pulmonary ventilation, maximal heart rate, ventilation equivalence for oxygen, and forced expiratory volume in one second were studied.
Effect Of Residual Bend In Coiled Tubing Buckling For Horizontal Wells
Coiled tubing has been continuously used successfully around the world. Various of companies has proven its advantage during drilling operation which cause this advance drilling technology a very important part specially on drilling underbalance well, workover, slimhole drilling and re-entry wells. Drilling with coiled tubing saves time and cost of operation thus increases profit. Selection of which how long coil tubing string shall be used in drilling varies with depth of the reservoir. However, in the life of coiled tubing string a residual bend exist. Initially coiled tubing is not straight tubing when placed inside a wellbore as it has a certain residual bend which is bound to happen. This paperâs aim is to explain how this residual bend that is present in coiled tubing affect on string maximum length before lock-up occurs on tubing
BarnehagelÊreres kompetanse pÄ barn med en sprÄkforstyrrelse.
Master i tilpasset opplĂŠring - 202
Barriers and Challenges in Distanced-Learning in Developing World
The purpose of this study is to identify the difficulties and impediments that educational institutions in underdeveloped nations confront. Distance learning is critical to sustaining education during the COVID-19 epidemic. This creates a number of difficulties when implementing remote learning. One of the difficulties encountered is a lack of contact with instructors throughout the learning process, which results in a less effective learning process
DoS and DDoS mitigation using Variational Autoencoders
DoS and DDoS attacks have been growing in size and number over the last decade and existing solutions to
mitigate these attacks are largely inefficient. Compared to other types of malicious cyber attacks, DoS and
DDoS attacks are particularly challenging to combat. Because of their ability to mask themselves as legitimate
traffic, it has proven difficult to develop methods to detect these types of attacks on a packet or flow level. In
this paper, we explore the potential of Variational Autoencoders to serve as a component within an intelligent
security solution that differentiates between normal and malicious traffic. The motivation behind resorting
to Variational Autoencoders is that unlike normal encoders that would code an input flow as a single point,
they encode a flow as a distribution over the latent space which avoids overfitting. Intuitively, this allows a
Variational Autoencoder to not only learn latent representations of seen input features, but to generalize in a
way that allows for an interpretation of unseen flows and flow features with slight variations.
Two methods based on the ability of Variational Autoencoders to learn latent representations from network
traffic flows of both benign and malicious traffic, are proposed. The first method resorts to a classifier based on
the latent encodings obtained from Variational Autoencoders learned from traffic traces. The second method
is an anomaly detection method, where the Variational Autoencoder is used to learn the abstract feature
representations of exclusively legitimate traffic. Anomalies are then filtered out by relying on the reconstruction
loss of the Variational Autoencoder. In this sense, the construction loss of the autoencoder is fed as input to
a classifier that outputs the class of the traffic including benign and malign, and eventually the attack type.
Thus, the second approach operates with two separate training processes on two separate data sources: the
first training involving only legitimate traffic, and the second training involving all traffic classes. This is
different from the first approach which operates only a single training process on the whole traffic dataset.
Thus, the autoencoder of the first approach aspires to learn a general feature representation of the flows while
the autoencoder of the second approach aims to exclusively learn a representation of the benign traffic. The
second approach is thus more susceptible to finding zero day attacks and discovering new attacks as anomalies.
Both of the proposed methods have been thoroughly tested on two separate datasets with a similar feature
space. The results show that both methods are promising, with the classifier-based method being slightly
superior to the anomaly-based one
Digital sikkerhetskultur i en hybrid hverdag
I mars 2020 ble tusenvis av arbeidstagere sendt pÄ hjemmekontor over natten. Virksomheter sÄ seg nÞdt til Ä digitalisere og implementerte ny teknologi i rekordfart. Mange ansatte opplevde Ä ikke fÄ veiledning om hvordan de skulle arbeide sikkert hjemmefra. Dette i sammenheng med utviklingen med den Þkte digitaliseringen av samfunnet, sÄ har vi sett en fremvekst av digitale trusler. Koronapandemien var med pÄ Ä skjerpe det nasjonale risikobildet. Dette var med pÄ Ä forme problemstillingen til denne oppgaven: Hvilke elementer ved digital sikkerhetskultur bÞr virksomheter prioritere ved hybride kontorlÞsninger?
Metodikken for denne oppgaven har vÊrt en kvalitativ, eksplorativ fremgangsmÄte. Det er gjennomfÞrt flere dybdeintervjuer av informanter med relevant kompetanse i relevante stillinger, som ble vurdert til Ä representere virksomheter som ble pÄvirket av den nye normalen. Denne nye normalen representeres i denne oppgaven som hybridkontoret.
Det er brukt blant annet litteraturstudier, analyser av spÞrreundersÞkelser gjennomfÞrt av blant annet NSM og deres rapport Nordmenn og digital sikkerhetskultur, samt andre spÞrreundersÞkelser og studier med hjemmekontor, for Ä kunne besvare problemstillingen. Funn gjort i intervjuene og i analyse av spÞrreundersÞkelser m.m, har blitt vurdert og drÞftet opp mot det teoretiske grunnlaget som oppgaven lener seg pÄ. Det er for Þvrig verd Ä merke seg at selv om det finnes utbredt forskning pÄ hjemmekontor og dens effekt pÄ mennesker er det dog fÊrre studier av utfordringene knyttet til digital sikkerhetskultur, hybridkontoret og den nye normalen.
Denne nye normale medfÞrer bÄde muligheter og utfordringer. For eksempel kan ansatte endre sin adferd, vÊremÄte og holdninger nÄr at de ikke lengre er til stede pÄ kontoret, og ikke deltar i gruppedynamikken og organisasjonskulturen. Videre kan hybride kontorlÞsning medfÞre endringer for hvordan en mÄ prioritere for Ä ivareta og arbeide med en den digital sikkerhetskultur.
Tidligere var flertallet av ansatte «under samme tak», men med hybridkontor vil spredningen av de ansatte kunne fÞre til at det ikke bare mÄ benyttes andre metodikker for samhandling og kommunikasjon, men ogsÄ andre vesentlige endringer for hvordan ansatte ledes. Studier viser ogsÄ at forlenget hjemme eller hybridkontor pÄvirker den ansattes adferd og holdninger, og pÄ sikt vil kunne medfÞre at en fÄr en stÞrre sannsynlighet for at det oppstÄr uÞnskede hendelser med tap av informasjon, kompromittering av konfidensialitet og integritet.
LĂžsningen pĂ„ problemstillingene som oppstĂ„r kan finnes i at virksomhetsledere i stĂžrre grad mĂ„ jobbe ut ifra tillit og en situasjonsbestemt tilnĂŠrming med tettere grad av oppfĂžlging. Videre er det indikasjoner pĂ„ at ledere i stĂžrre grad mĂ„ involvere de ansatte, og kommunisere bredere. Like viktig kan det ogsĂ„ vĂŠre at ledere gĂ„r foran og er gode eksempler for de ansatte â litt enkelt sagt mĂ„ de «vĂŠre gode bjellesauer», samt at man mĂ„ skape forstĂ„else for hvorfor det er viktig Ă„ gjennomfĂžre tiltakene eller fĂžlge de forskjellige prosessene, heller enn Ă„ fortelle at det mĂ„ gjĂžres pĂ„ den ene eller andre mĂ„ten
The Psychometric Properties of the Frost Multidimensional Perfectionism Scale - Brief
Previous psychometric analyses of the Frost Multidimensional Perfectionism Scale and the abbreviated version (FMPSâBrief) have resulted in inconsistent findings regarding the scaleâs bidimensionality or unidimensionality. Different studies evaluating the scale with different statistical analyses and comparative samples report different results and recommendations. This study assessed the FMPS-Bâs psychometric properties by conducting both confirmatory factor analysis (CFA) and pure bifactor modeling in order to address previous findings and guide future use of the scale. The results indicate that the two-factor model is the best fit. Going forward, the FMPS-Bâs subfactors âstrivingsâ and âevaluative concernsâ may be studied separately. Implications for future research and challenges in bifactor modeling are discussed.publishedVersio
Principer för Svenska sprÄknÀmndens rÄdgivningsarbete
[Der findes ikke resumé til denne artikel
A Randomized Control Trial of a Brief Self-Compassion Intervention for Perfectionism, Anxiety, Depression, and Body Image
Objective: Due to a rise in perfectionistic tendencies and growing concerns about the increase in mental health conditions among students this study aimed to examine the effects of a brief intervention in self-compassion on maladaptive perfectionism, anxiety, depression, and body image.
Methods: The intervention consisted of four seminars and a silent half-day retreat with short lectures and relevant experiential practices from Mindful Self-Compassion (MSC) and Mindfulness Based Stress Reduction (MBSR). This randomized wait-list control trial was pre-registered at Clinicaltrials.gov (ID: NCT03453437, Unique Protocol ID: UiBMSC2018). University students were randomly assigned to the intervention group and wait-list control group and filled out surveys weekly. A repeated measures analysis of variance (ANOVA) was used to compare the groups pre- and post-treatment. Mixed level modeling was used to analyze changes in all outcome measures over time.
Results: Eighty-nine participants completed the intervention. Results of the ANOVA showed significant post-intervention reductions in maladaptive perfectionistic tendencies and symptoms of depression and anxiety, in addition to increased self-compassion and improved body image in the intervention group as compared to the wait-list group. Mixed level modeling showed statistically significant changes in self-compassion, maladaptive perfectionism, adaptive perfectionism, anxiety, and depression but not body image. Only the mixed level modeling showed small but significant changes to adaptive perfectionism, also called strivings. Implications of different changes to maladaptive perfectionism than adaptive perfectionism are discussed.publishedVersio
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