scholarly journals Toward Network Worm Victims Identification Based on Cascading Motif Discovery

Electronics ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 183
Author(s):  
Hangyu Hu ◽  
Mingda Wang ◽  
Mingyu Ouyang ◽  
Guangmin Hu
Keyword(s):  
Network Security ◽  
Network Flow ◽  
Motif Discovery ◽  
Global Network ◽  
Target Discovery ◽  
Discovery Phase ◽  
The Face ◽  
As Graph ◽  
Short Time ◽  
Motif Discovery Algorithm

Network worms spread widely over the global network within a short time, which are increasingly becoming one of the most potential threats to network security. However, the performance of traditional packet-oriented signature-based methods is questionable in the face of unknown worms, while anomaly-based approaches often exhibit high false positive rates. It is a common scenario that the life cycle of network worms consists of the same four stages, in which the target discovery phase and the transferring phase have specific interactive patterns. To this end, we propose Network Flow Connectivity Graph (NFCG) for identifying network worm victims. We model the flow-level interactions as graph and then identify sets of frequently occurring motifs related to network worms through Cascading Motif Discovery algorithm. In particular, a cascading motif is jointly extracted from graph target discovery phase and transferring phase. If a cascading motif exists in a connected behavior graph of one host, the host would be identified as a suspicious worm victim; the excess amount of suspicious network worm victims is used to reveal the outbreak of network worms. The simulated experiments show that our proposed method is effective and efficient in network worm victims’ identification and helpful for improving network security.

scholarly journals Contactless Video-Based Heart Rate Monitoring of a Resting and an Anesthetized Pig

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 442
Author(s):  
Meiqing Wang ◽  
Ali Youssef ◽  
Mona Larsen ◽  
Jean-Loup Rault ◽  
Daniel Berckmans ◽  
...  
Keyword(s):  
Heart Rate ◽  
Estimation Error ◽  
Well Being ◽  
Absolute Error ◽  
Mean Value ◽  
Video Data ◽  
Window Functions ◽  
The Face ◽  
Short Time ◽  
Better Than

Heart rate (HR) is a vital bio-signal that is relatively easy to monitor with contact sensors and is related to a living organism’s state of health, stress and well-being. The objective of this study was to develop an algorithm to extract HR (in beats per minute) of an anesthetized and a resting pig from raw video data as a first step towards continuous monitoring of health and welfare of pigs. Data were obtained from two experiments, wherein the pigs were video recorded whilst wearing an electrocardiography (ECG) monitoring system as gold standard (GS). In order to develop the algorithm, this study used a bandpass filter to remove noise. Then, a short-time Fourier transform (STFT) method was tested by evaluating different window sizes and window functions to accurately identify the HR. The resulting algorithm was first tested on videos of an anesthetized pig that maintained a relatively constant HR. The GS HR measurements for the anesthetized pig had a mean value of 71.76 bpm and standard deviation (SD) of 3.57 bpm. The developed algorithm had 2.33 bpm in mean absolute error (MAE), 3.09 bpm in root mean square error (RMSE) and 67% in HR estimation error below 3.5 bpm (PE3.5). The sensitivity of the algorithm was then tested on the video of a non-anaesthetized resting pig, as an animal in this state has more fluctuations in HR than an anaesthetized pig, while motion artefacts are still minimized due to resting. The GS HR measurements for the resting pig had a mean value of 161.43 bpm and SD of 10.11 bpm. The video-extracted HR showed a performance of 4.69 bpm in MAE, 6.43 bpm in RMSE and 57% in PE3.5. The results showed that HR monitoring using only the green channel of the video signal was better than using three color channels, which reduces computing complexity. By comparing different regions of interest (ROI), the region around the abdomen was found physiologically better than the face and front leg parts. In summary, the developed algorithm based on video data has potential to be used for contactless HR measurement and may be applied on resting pigs for real-time monitoring of their health and welfare status, which is of significant interest for veterinarians and farmers.

“The Greatest Thrill I Get is When I Hear a Criminal Say, ‘Yes, I Did it’”: Race and the Third Degree in New Orleans, 1920–1945

2016 ◽  
Vol 34 (1) ◽  
pp. 1-44
Author(s):  
Jeffrey S. Adler
Keyword(s):  
African American ◽  
Medical Care ◽  
New Orleans ◽  
Police Officer ◽  
Police Officers ◽  
Constitutional Protection ◽  
The Third ◽  
The Face ◽  
A Cell ◽  
Short Time

On May 11, 1938, two New Orleans policemen entered the Astoria Restaurant, marched to the kitchen, and approached Loyd D. T. Washington, a 41-year-old African American cook. They informed Washington that they would be taking him to the First Precinct station for questioning, although they assured the cook that he need not change his clothes and “should be right back” to the “Negro restaurant,” where he had worked for 3 years. Immediately after arriving at the station house, police officers “surrounded” Washington, showed him a photograph of a man, and announced that he had killed a white man in Yazoo City, Mississippi, 20 years earlier. When Washington insisted that he did not know the man in the photograph, that he had never been to (or even heard of) Yazoo City, and that he had been in the army at the time of the murder, the law enforcers confined him in a cell, although they had no warrant for his arrest and did not charge him with any crime. The following day, a detective brought him to the “show-up room” in the precinct house, where he continued the interrogation and, according to Washington, “tried to make me sign papers stating that I had killed a white man” in Mississippi. As every African American New Orleanian knew, the show-up (or line-up) room was the setting where detectives tortured suspects and extracted confessions. “You know you killed him, Nigger,” the detective roared. Washington, however, refused to confess, and the detective began punching him in the face, knocking out five of his teeth. After Washington crumbled to the floor, the detective repeatedly kicked him and broke one of his ribs. The beating continued for an hour, until other policemen restrained the detective, saying “give him a chance to confess and if he doesn't you may start again.” But Washington did not confess, and the violent interrogation began anew. A short time later, another police officer interrupted the detective, telling him “do not kill this man in here, after all he is wanted in Yazoo City.” Bloodied and writhing in pain, Washington asked to contact his family, but the request was ignored. Because he had not been formally charged with a crime, New Orleans law enforcers believed that Washington had no constitutional protection again self-incrimination or coercive interrogation and no right to an arraignment or bail, and they had no obligation to contact his relatives or to provide medical care for him.

Generalized eruptive keratoacanthomas of Grzybowski (case report)

2021 ◽  
Author(s):  
И.А. Куклин ◽  
Н.П. Малишевская ◽  
М.М. Кохан ◽  
Г.Д. Сафонова ◽  
О.Г. Римар ◽  
...  
Keyword(s):  
Clinical Care ◽  
Clinical Manifestations ◽  
Review Of The Literature ◽  
Trunk Limbs ◽  
The Face ◽  
Spontaneous Involution ◽  
Atrophic Scars ◽  
Short Time ◽  
First Time ◽  
Aromatic Retinoids

В статье представлен краткий обзор литературы о клинических проявлениях, современных методах диагностики и лечения чрезвычайно редкого заболевания – множественной эруптивной кератоакантомы типа Гржебовски. Заболевание характеризуется возникновением сотен или тысяч генерализованных зудящих узелков на коже лица, туловища, конечностей, половых органов, слизистой полости рта и гортани в течение короткого времени. Заболевание развивается в возрасте старше 40 лет, имеет рецидивирующее течение, возможна спонтанная инволюция отдельных элементов с формированием участков депигментации или атрофических рубцов. Авторы приводят случай собственного клинического наблюдения множественной эруптивной кератоакантомы типа Гржебовски у пациента 50 лет, который обратился на консультацию к дерматовенерологу в клинику Уральского НИИ дерматовенерологии и иммунопатологии. Длительность болезни на момент обращения составляла 2,5 года, ее возникновению предшествовало неоднократное посещение больным стран с избыточной инсоляцией, что может рассматриваться в качестве этиологического фактора развития заболевания. Диагноз впервые был заподозрен на консилиуме дерматовенерологов на основании клинической картины заболевания и в дальнейшем верифицирован данными патоморфологического исследования биоптата пораженной кожи. Показана эффективность применения ароматических ретиноидов в лечении множественной эруптивной кератоакантомы типа Гржебовски и приведены побочные эффекты, которые развились у больного при самостоятельном увеличении дозы ацитретина до 70 мг/сутки. В статье констатируется чрезвычайно редкая встречаемость данного заболевания, о чем свидетельствует приведенный клинический случай, диагностируемый впервые более чем за 90-летнюю историю существования института. Подчеркивается важность консолидации клинического опыта нескольких ведущих дерматовенерологов для диагностики множественной эруптивной кератоакантомы типа Гржебовски. The article presents a brief review of the literature about clinical manifestations, modern methods of diagnosticsand treatment of an extremely rare disease – generalized eruptive keratoacanthomas of Grzybowski. The disease is characterized by the appearance of hundreds or thousands of generalized itchy nodules on the skin of the face, trunk, limbs, genitals, oral mucosa and larynx within a short time. The disease develops at the age of over 40, has a recurrent course, spontaneous involution of individual elements with the formation of areas of depigmentation or atrophic scars is possible. The authors describe a case of their own clinical care of generalized eruptive keratoacanthomas of Grzybowski in a 50-year-old patient who consulted a dermatovenerologist at the clinic of the Ural Research Institute of Dermatovenerology and Immunopathology.The duration of the disease at the time of visit to a doctor was 2,5 years, its occurrence was preceded by repeated visits to countries with excessive insolation, which can be considered as an etiological factor in the development of the disease. The diagnosis was first suspected at a boarddermatovenerologists based on the clinical picture of the disease and subsequently verified by the data of a pathomorphological examination of the biopsy of the affected skin.The effectiveness of the use of aromatic retinoids in the treatment of generalized eruptive keratoacanthomas of Grzybowski is shown and the side effects that developed in the patient with an independent increase in the dose of acitretin to 70 mg/day are given. The article states the extremely rare occurrence of this disease, as evidenced by the above clinical case, diagnosed for the first time in more than 90 years of the institute's existence. The importance of consolidating the clinical experience of several leading dermatovenerologists for the diagnostics of generalized eruptive keratoacanthomas of Grzybowski is emphasized.

The Approach of Academicians to Distance Education During COVID-19

2022 ◽  
pp. 212-231
Author(s):  
Yusuf Akkoca
Keyword(s):  
Distance Education ◽  
Research Design ◽  
Thematic Analysis ◽  
Education System ◽  
Academic Staff ◽  
Face To Face ◽  
Education Community ◽  
The Face ◽  
Short Time ◽  
Distance Education System

The education community, accustomed to the face-to-face education system, had to switch to the distance education system with the COVID-19 pandemic. It was inevitable for educators who had not experienced distance education to prepare themselves in a short time and to complete the process with the least damage. Of course, there were many negativities during distance education and the whole world gained certain experiences during this time. In this study, the problems experienced by the academic staff using distance education applications, their approaches to distance education, how much they have improved themselves in other possible problems in the future, and what they expect from distance education have been examined. Thematic analysis was used as a research design; articles, theses, books, reports of official institutions and organizations were examined; and the concepts that emerged during distance education applications were divided according to categories by using descriptive and thematic analysis.

scholarly journals KEHIDUPAN BERMAKNA PEREMPUAN YANG MENGALAMI KEKERASAN DALAM RUMAH TANGGA

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Ni Made Putri Ariyanti ◽  
Tience Debora Valentina
Keyword(s):  
Qualitative Research ◽  
Domestic Violence ◽  
Meaning Of Life ◽  
Phenomenological Approach ◽  
Meaningful Life ◽  
Psychological Suffering ◽  
Discovery Phase ◽  
The Face ◽  
Changing Attitudes

Meaningful life occurs when an individual is able to give meaning to his life. To achieve a meaningful life, individuals go through a process of achieving a meaningful life that begins from the suffering stage, the stage of self-understanding, the discovery phase of the meaning of life, the meaning realization stage, and the stage of meaningful life. This study aimed to see a meaningful life of women who have experienced violence in the home. Domestic violence is any act against someone, especially women, which results in the emergence of physical, sexual, or psychological suffering, and /or negligence of households within the domestic sphere.This study used qualitative research with a phenomenological approach and the number of the respondents was three women experiencing domestic violence. The data used in this study were observation and interviews. The results of this study indicated that the process of achieving a meaningful life started from the stage of suffering, experiencing violence. The women who experienced violence were the ones found to have been divorced but reconciled with her husband, when women underwent violence they were not able to give meaning to their life in a positive way. When women were not able to give meaning to their life, they began praying and reading positive books that directed them to seek the meaning of life, namely children, religion, values, and expectations as the meaning of life which then directed them to change attitudes in the face of violence. Changing attitudes carried out by women are looking for help and choosing to separate from her husbands. After changing attitudes, women committed themselves to living a meaningful life that had been found to fulfill the meaning of life with work and developing skills. The women who had fulfilled the meaning of life were able to look at life more meaningful by generating belief, seeing violence as a trial and behind the trial is a lesson that can be learned and that it can ultimately bring happiness.Keywords: women, domestic violence, meaningful life

IMPROVING THE SHORELINE ASSESSMENT PROCESS WITH NEW SCAT FORMS

2001 ◽  
Vol 2001 (2) ◽  
pp. 1527-1534 ◽  
Author(s):  
Jacqueline Michel ◽  
Ruth Yender ◽  
Edward H. Owens ◽  
Gary Sergy ◽  
R. D. Martin ◽  
...  
Keyword(s):  
Short Form ◽  
Assessment Process ◽  
Environment Canada ◽  
Field Surveys ◽  
Standard Methods ◽  
The Face ◽  
Oil Spill Response ◽  
Short Time ◽  
Time Frames ◽  
Sketch Map

ABSTRACT The shoreline assessment process is an integral component of oil spill response, providing assistance in decision-making and documentation for shoreline cleanup. The process consists of developing cleanup recommendations and target cleanup endpoints, providing standard methods for conducting field surveys and collecting data, designing reporting activities, and setting procedures for shoreline inspection and post-treatment sign-off. Both the National Oceanic and Atmospheric Administration (NOAA) and Environment Canada have recently revised their guidance manuals and forms, making them more effective and consistent. New, third-generation, forms have been generated, including: (1) a standard shoreline assessment form, (2) a “short” form, (3) a tarball form, (4) a wetlands form, and (5) a revised sketch map base. Environment Canada has also generated a tidal flat form and variations of the basic forms for lakes, rivers, streams, arctic coasts, snow and ice, coral reefs, and mangroves. The changes have been made to remedy problems encountered with previous forms, particularly frequent failures by teams to properly record all of the required information; perceptions that the forms were too complex; the need for a good “short” form that meets immediate, operational demands in the face of extremely short time frames; and use of different forms by different groups.

scholarly journals Existentialism in For Whom the Bell Tolls

2019 ◽  
pp. 9-19
Keyword(s):  
19Th Century ◽  
Social Order ◽  
Belief Systems ◽  
Radical Change ◽  
The World ◽  
The Face ◽  
Short Time ◽  
The 19Th Century ◽  
Industrial Revolutions ◽  
Commit Suicide

As the scientific and industrial revolutions came to a head in the 19th century, and society became increasingly secularized, the traditional social order underwent radical change in a very short time. During this period, people began to feel disconnected from the traditional belief systems that had helped them make sense of the world and of their lives. In these conditions, people may not literally commit suicide, but a kind of spiritual death – spiritual death – becomes a real danger. It occurs when people give up to resignation and surrender in the face of what they see as the pointlessness of existence.

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