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Monitoring of Faecal Contamination and Physicochemical Variables in Surface Waters in Oued Inaouène (Upper Sebou, Morocco)

Sghiouer Fatima Ezzehra, Nahli Abdelmottalib, Bouka Hassan, Chlaida Mohamed

Journal of Ecological Engineering

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2022

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Vol. 23, nr 11

33--40

EN

The study aimed to evaluate the spatiotemporal variation in the physico-chemical and bacteriological quality of Oued Inaouène water in relation to urban discharges that remain the main sources of pollution in the Inaouene basin. During the period from May 2019 to March 2020, seven stations were sampled, six of which are spread along the Inaouène Oued in addition to one reference station that is less affected by urban pollution. The indicators used were: temperature, pH, electrical conductivity (EC), turbidity and dissolved oxygen (OD), biological oxygen demand (BOD5), chemical oxygen demand (COD), Kjeldahl nitrogen (TKN), E coli, IE and TC. The quality data obtained were analysed using multivariate statistical methods (the CPA) and the correlation matrix. The results showed that with the exception of the OT station located upstream of urban discharges, the majority of stations downstream of urban discharges have poor quality during both wet and dry seasons, according to the Moroccan standards.

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Preface to the Special Issue on Computational Performance Analysis based on Novel Intelligent Methods: Exploration and Future Directions in Production and Logistics

Goli Alireza, Tirkolaee Erfan Babaee, Weber Gerhard-Wilhelm

Foundations of Computing and Decision Sciences

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2022

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Vol. 47, No. 2

107--110

EN

This special issue of the Foundations of Computing and Decision Sciences, titled “Computational Performance Analysis based on Novel Intelligent Methods: Exploration and Future Directions in Production and Logistics”, is devoted to the application of Computational Performance Analysis (CPA) for real-life phenomena. The special issue and its editorial present novel intelligent methods as they meet with various research topics in production and logistics, especially in terms of challenges, limitations and future trends. This special issue aims to bring together current progress on the CPA, organization management, and novel models and solution techniques that can contribute to a better understanding of the CPA systems and delineate useful practical strategies. Methodologically interesting and well-documented case studies are highly recommended. Additionally, the special issue covers innovative cutting-edge research methodologies and applications in the related research field.

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Study Reliability of the Information About the CPA and TCPA Indicated by the Ship's AIS

Wawruch R.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

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2016

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Vol. 10, no. 3

417--424

EN

According to the IMO recommendation when the target data from AIS and radar tracking are both available and the association criteria are fulfilled such that the AIS and radar information are considered as for one physical target, then as a default condition in radar equipment, the AIS target symbol and the alphanumerical AIS target data should be automatically selected and displayed only. The article presents research conducted in real conditions on the reliability of information presented by the ship's AIS about the passing distance with the other vessel equipped with AIS and time to pass it by comparing data from the AIS with that presented by ARPA.

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On-chip current-mode approach to thwart CPA attacks in CMOS nanometer technology

Bellizia D., Scotti G., Trifiletti A.

International Journal of Microelectronics and Computer Science

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2016

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Vol. 7, nr 4

147--156

EN

The protection of information that reside in smart devices like IoT nodes is becoming one of the main concern in modern design. The possibility to mount a non-invasive attack with no expensive equipment, such as a Power Analysis Attack (PAA), remarks the needs of countermeasures that aims to thwart attacks exploiting power consumption. In addition to that, designers have to deal with demanding requirements, since those smart devices require stringent area and energy constraints. In this work, a novel analog-level approach to counteract PAA is presented, taking benefits of the current-mode approach. The kernel of this approach is that the information leakage exploited in a PAA is leaked through current absorption of a cryptographic device. Thanks to an on-chip measuring of the current absorbed by the cryptographic logic, it is possible to generate an error signal. Throughout a current-mode feedback mechanism, the data-dependent component of the overall consumption can be compensated, making the energy requirement constant at any cycle and thwarting the possibility to recover sensible information. Two possible implementations of the proposed approach are presented in this work and their effectiveness has been evaluated using a 40nm CMOS design library. The proposed approach is able to increase the Measurements to Disclosure (MTD) of at least three orders of magnitude, comparing to the unprotected implementation. It has to be pointed out that the on-chip current-mode suppressor, based on the proposed approach, is able to provide a very good security performance, while requiring a very small overhead in terms of silicon area (xl.007) and power consumption (xl.07).

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O możliwości zastosowania chromatografii cienkowarstwowej do oznaczania całkowitego potencjału antyoksydacyjnego. Część II. Właściwości antyoksydacyjne mięsa

Piszcz P., Tomaszewska M., Głód B. K.

Camera Separatoria

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2015

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Vol. 7, No. 1

87--93

PL

Antyoksydanty są związkami zapobiegającymi lub opóźniające utlenianie zachodzące w organizmie ludzkim i produktach spożywczych. Te, które występują w żywności, są korzystne dla naszego zdrowia, wspomagają leczenie i profilaktykę chorób. Do tej pory niewiele jest informacji na temat żywności pochodzenia zwierzęcego. W mięsie po uboju dochodzi do niekontrolowanych reakcji chemicznych, obniżenia pH oraz powstawania nowych antyoksydantów. W trakcie przygotowywania mięsa do spożycia następują zmiany w mikrostrukturze tkanki łącznej i włókien mięśniowych, które w efekcie powodują zmiany właściwości antyoksydacyjnych. Celem pracy było (i) zbadanie możliwości oznaczania całkowitego potencjału antyoksydacyjnego (CPA), odniesionego do rodnika DPPH, za pomocą TLC; (ii) zastosowanie opracowanej metody do oznaczania CPA wyrobów mięsnych oraz (iii) zastosowanie TLC jako fingerprint (odcisk palca) właściwości antyoksydacyjnych mięs.

EN

Antioxidants are compounds which prevent or delay the oxidation occurring in the human body and/or food products. Those, occurring in the food are advantageous for our health; enhance treatment and prevention of diseases. So far, there is little information on food of animal origin. In the meat after slaughter occurs uncontrolled chemical reactions decreased pH and the formation of new antioxidants. During the meat preparation for consumption changes occur in the microstructure of connective tissue and muscle fibers that have the effect on changes in their antioxidant properties. The aim of this study was (i) examine the possibility of determining of total antioxidant capacity (CPA), referred to the DPPH, by TLC; (ii) the application of this method for the determination of the CPA of meat and (iii) the use of TLC as a fingerprint of antioxidant properties of meats.

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O możliwości zastosowania chromatografii cienkowarstwowej do oznaczania całkowitego potencjału antyoksydacyjnego. Część I. Dobór warunków chromatograficznych

Piszcz P., Tomaszewska M., Głód B. K.

Camera Separatoria

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2015

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Vol. 7, No. 1

41--51

PL

Do oznaczania aktywności antyoksydacyjnej próbek spożywczych najczęściej stosowana jest metoda wykorzystująca rodnik 1,1-difenylo-2-pikrylohydrazylowy (DPPH). Zmiany stężenia rodnika są w niej oznaczane fotometrycznie, przy 517 nm. Wadą tej metody jest interferencja zarówno przez zredukowaną postać rodnika jak i składniki badanej próbki absorbujące światło przy 517 nm. Dlatego, do oznaczania zmian stężenia rodnika DPPH zastosowano chromatografię cienkowarstwową. Celem pracy było rozdzielenie różnych form DPPH za pomocą TLC oraz zbadanie możliwości zastosowania tej techniki do oznaczania całkowitego potencjału antyoksydacyjnego (CPA).

EN

The antioxidant activity of food samples usually is determined using the 1,1-diphenyl-2-pikrylohydrazyl radical (DPPH). Changes of the radical concentration are determined photometrically at 517 nm. The disadvantage of this method is the interference by the reduced form of radical as well as the sample components absorbing light at 517 nm. Therefore, changes in the DPPH concentration where measured using thin layer chromatography. The aim of the study was the separation of the different forms of DPPH using TLC and examine its applicability to the determination of the total antioxidant potential (TAP).

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Maritime traffic characteristics in waterway with time variant CPA

Jeong J.S., Park G.K., Kim K. I.

Annual of Navigation

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2013

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No. 20

49--58

EN

This paper aims at evaluating the collision risk between the encountering vessels under time- -variant CPA situations and then assessing the maritime traffic characteristics. Radar and AIS data are collected from Mokpo VTS in Korea. All crossing vessels that are navigating within CPA 1 miles of Mokpo-Gu waterway are analyzed. The maritime traffic characteristics is analyzed by surveying the distribution of CPA as a function of TCPA. To make it clear, the traffic operating rate in the Mokpo waterway is also computed. The averages of CPA and TCPA were observed until the encountered vessels pass safety each other after they come in a certain ship domain. As a consequence, the distribution of CPA as a function of TCPA gives a useful information to evaluate the maritime traffic safety.

PL

Celem artykułu jest ocena ryzyka kolizji statków w funkcji zmiany wartości czasu do kolizji, a na tej podstawie oszacowanie charakterystyk determinujących ruch morski. Dane z radarów oraz systemu AIS zostały zarejestrowane w systemie VTS Mokpo w Korei. Przeanalizowano wszystkie przypadki przecinania się tras statków na podejściu do Mokpo-Gu w przypadku, gdy odległość minimalna (CPA) była mniejsza niż jedna mila morska. Charakterystyka ruchu morskiego opisana została poprzez wyznaczenie rozkładu wartości największego zbliżenia statków jako funkcji czasu do nadmiernego zbliżenia (TCPA). Dla pełnej jasności obliczono również współczynnik przepustowości drogi wodnej Mokpo. Opisano średnie wartości odległości największego zbliżenia oraz czasu do wystąpienia CPA bez względu na przekroczenia granic domeny obserwowanych statków. W konsekwencji wyznaczono rozkład wartości CPA jako funkcję TCPA, co okazuje się użyteczne dla oceny bezpieczeństwa ruchu morskiego.

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Impossible becomes possible - the Nikolet Viking IV usage in Intra-Operative Monitoring

Rauszer A., Doleżych H.

Journal of Medical Informatics & Technologies

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2007

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Vol. 11

329--333

EN

Recent advances in surgical technology have encouraged many surgeons to explore new ways of helping patients, potentially increasing the risk to the patient's neurological system. A complication of surgery, especially neurosurgery, is the development of a post-operative neurological deficit. The original purpose for the use of various neurophysiological monitoring procedures was to reduce the incidence of neurological deficit, regardless of its origin. VIASYS Healthcare (Nicolet Biomedical) has created Nicolet Viking IV that fulfils all criteria of a good intra-operative monitoring instrument. Viking IV can perform routine and computer-aided Electromyography, Evoked Potentials Studies, Nerve Conduction Studies and Intra-Operative Monitoring. Nicolet Viking IV is also very useful in other branches of medicine like: neurology, internal medicine, obstetrics and gynaecology, neonatology and many more. Today we use intra-operating monitoring for several additional purposes, including improving overall surgical outcomes, monitoring the efficacy of intervention strategies and monitoring neurological structures that are at risk due to secondary/perisurgical variables. Intra-operative neurophysiologic monitoring (IONM) allows the detection of neurological compromise early enough that permanent deficits may be avoided.

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CPAgame/prism and ultrafilters on Q and ω

Millán A.

Journal of Applied Analysis

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2006

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Vol. 12, nr 2

153-180

EN

In this paper we use the version CPAgame/prism of the Covering Property Axiom, which has been formulated by Ciesielski and Paw- likowski and holds in the iterated perfect set model, to study the rela- tions between different kinds of ultrafilters on ω and Q. In particular, we will give a full account for the logical relations between the properties of being a selective ultrafilter, a P-point, a Q-point, and an ω 1-OK point.

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On additive almost continuous functions under CPAgame/prism

Ciesielski K., Pawlikowski J.

Journal of Applied Analysis

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2005

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Vol. 11, nr 2

153-170

EN

We prove that the Covering Property Axiom CPAgame/prism, which holds in the iterated perfect set model, implies that there ex-ists an additive discontinuous almost continuous function f : R -> R whose graph is of measure zero. We also show that, under CPAgame/prism, there exists a Hamel basis H for which. E+(H), the set of all linear combinations of elements from H with positive rational coefficients, is of measure zero. The existence of both of these examples follows from Martin's axiom. while it is unknown whether either of them can be constructed in ZFC. As a tool for the constructions we will show that CPAgame/prism implies its seemingly stronger version, in which ω-many games are played simultaneously.