Statistical Assessment of the Water Quality using Water Quality Index and Organic Pollution Index —Case study, Oued Tighza. Morocco

To characterize the spatial and temporal variability of surface water quality of Oued Tighza in Morocco. Two indices were used. The water quality index was calculated from nine physicochemical parameters (pH, T°, Electrical Conductivity Dissolved O2 NH4+ NO3- SO42- PO43- BOD5) and the Organic Pollution Index was determined from 3 organic pollution indicator parameters (NH4+ PO43- BOD5) measured during 12 months on 7 sampling stations. The values that were obtained are between 427.64 as the minimum value at station 7 and 581.717 as the maximum value at station S2 for the WQI and between 1 and 1.33 for the OPI at all stations. The results of both indices corroborate and indicated poor water quality in the different stations sampled. The water quality was critical during the study period due to the effects of the discharge of water from the urban wastewater treatment plant. Based on the results obtained, the values of the water parameters far exceed the values of the surface waters according to Moroccan standards and classify the water quality of the study area as poor to very poor

Growing Teratoma Syndrome and Peritoneal Gliomatosis

The growing teratoma syndrome (GTS) is defined as a detection of an enlarged mass during or after chemotherapy treatment for germ cell tumor. We report a case of an 18-year-old girl treated for growing teratoma syndrome after chemotherapy for malignant germ cell tumor of the ovary associated with peritoneal gliomatosis. Chemotherapy induced normalisation of alpha-fetoprotein rate whereas there was an enlargement of the mass. Subsequent complete resection was performed, and the patient remained in good control for 60 months. This clinical picture suggested the diagnosis of “GTS”. This syndrome can lead to confusion with progression or relapse of a germ cell tumour because of increase in tumour volume during chemotherapy, so it is important to recognize it

DEGENERESCENCE MALIGNE D’UN KYSTE DERMOIDE

Les tératomes ovariens représentent 10 à 20℅ de l’ensemble des kystes ovariens bénins. La transformation maligne de l’un ou de plusieurs composants du tératome est rare, elle représente 1 à 3℅ des tératomes matures kystiques [1,2]. Le type carcinome epidermoide est retrouvé dans 80℅ des cas environ [1-4], mais d’autres types sont possibles comme le mélanome et l’adénocarcinome surtout chez les femmes ménopausées

Quality assessment of groundwater in the region of Laayoune-Dakhla (southern Sahara Morocco) for drinking and irrigation purposes

The study aimed to understand the quality of groundwater in the Laayoune-Dakhla region, in southern Sahara Morocco. Groundwater samples from 30 wells were collected and analyzed for their physical and chemical properties were collected and carefully studied for their physical and chemical properties (T, pH, EC, NO3-, Cl-, HCO3-, SO42-, Ca2+, Mg2+, K+ and Na+). Based on the data analyzed, we classified the water and calculated some parameters such as sodium adsorption (SAR), the sodium percentage (%Na), the residual sodium carbonate (RSC) and the Magnesium adsorption (%Mg) for each water sample in order to know the suitability for drinking and irrigation. The results showed high levels of salts for most of the water samples studied, where the EC values ranged from 1290 to 6895 µS/cm. According to the water classification based on TDS, 80% of the samples showed very high mineralization. 96.66% of the samples studied were very hard and unfit for human consumption. Also, estimated parameters such as Na% and SAR were within appropriate levels for irrigation, while EC and Cl- values for most samples were within limits inappropriate for irrigation. According to the Piper diagram 86.66% of the waters are characterized by a sodium chloride facies and 13.33% sulphated calcium. Principal component analysis (PCA) shows that the mineralization of the waters of Laâyoune-Dakhla is of natural origin

Thrombose de la veine ovarienne au post-partum, révélée par un syndrome appendiculaire: à propos d’un cas

Une patiente de 27 ans a présenté à J13 du post partum, suite à un accouchement eutocique non compliqué et sans anamnèse infectieuse, une douleur en fosse iliaque droite évoluant dans un contexte fébrile. Devant une suspicion clinique et biologique d'appendicite, nous avons réalisé une échographie abdominopelvienne qui était normale. Le complément par scanner abdominale, a objectivé une thrombose de la veine ovarienne (TVO) à droite remontant jusqu'à la veine cave inférieure. Le traitement médical était basé essentiellement sur les anticoagulants. L'évolution était favorable

Prise en charge du Cancer de la Vulve

Le cancer de la vulve est relativement rare. Son étiopathogénie est actuellement mieux élucidée. Sa prise en charge, essentiellement chirurgicale, a évolué vers une approche conservatrice grâce aux résections limitées et à la lymphadénectomie sélective qui a permis de réduire considérablement la morbidité et les séquelles chirurgicales sans pour autant altérer le pronostic. La prise en charge du cancer de la vulve doit être multidisciplinaire incluant une chirurgie minimale invasive dans les stades précoces et une radio-chimiothérapie : préopératoires dans les stades localement avancés, en adjuvant en cas de facteurs de risque de rechute et en palliatif dans les formes inopérables. La prévention repose sur le traitement des lésions précancéreuses et la vaccination anti HPV

ADENOCARCINOME DE LA TROMPE. A PROPOS DE DEUX CAS ET REVUE DE LA LITTERATUTRE

Introduction: The primary cancer of the fallopian tube is rare. They represent less than 2% of gynecological tumors and they are dominated by adenocarcinoma. Clinical Observations: We report two cases of tubal adenocarcinoma in two patients followed at the Department of Surgery II, National Institute of Oncology Rabat. Discussion: Tubal adenocarcinoma is a common disease in postmenopausal women. the diagnosis of primary cancer of the fallopian tube is difficult. treatment is similar malignant epithelial ovarian tumors with a better prognosis in the early stages. Conclusion: Rare cancer of unknown etiology, clinical signs is often separated, the preoperative diagnosis is difficult, with a prognosis depends on the stage of the disease.Introduction : Les cancers primitifs de la trompe sont rares. Ils représentent moins de 2% des tumeurs gynécologiques et ils sont dominés par l’adénocarcinome. Observations cliniques : Nous rapportons deux cas d’adénocarcinomes tubaires chez deux patientes suivies au service de chirurgie II institut national d’oncologie Rabat. Discussion : L’adénocarcinome tubaire est une pathologie plus fréquente chez la femme ménopausée. Le diagnostic de cancer primitif de la trompe est très difficile à affirmer. Le traitement rejoint celui des tumeurs épithéliales malignes de l’ovaire avec un pronostic meilleur dans les stades précoces. Conclusion : Cancer rare d’étiologie méconnue, les signes cliniques sont souvent dissociés, le diagnostic préopératoire est difficile, avec un pronostic qui dépend du stade de la maladie

Widespread exploitation of the honeybee by early Neolithic farmers.

This is the author's version of an article subsequently published in Nature. The definitive version is available from the publisher via: doi: 10.1038/nature15757.Copyright © 2015, Rights Managed by Nature Publishing GroupThe pressures on honeybee (Apis mellifera) populations, resulting from threats by modern pesticides, parasites, predators and diseases, have raised awareness of the economic importance and critical role this insect plays in agricultural societies across the globe. However, the association of humans with A. mellifera predates post-industrial-revolution agriculture, as evidenced by the widespread presence of ancient Egyptian bee iconography dating to the Old Kingdom (approximately 2400 BC). There are also indications of Stone Age people harvesting bee products; for example, honey hunting is interpreted from rock art in a prehistoric Holocene context and a beeswax find in a pre-agriculturalist site. However, when and where the regular association of A. mellifera with agriculturalists emerged is unknown. One of the major products of A. mellifera is beeswax, which is composed of a complex suite of lipids including n-alkanes, n-alkanoic acids and fatty acyl wax esters. The composition is highly constant as it is determined genetically through the insect's biochemistry. Thus, the chemical 'fingerprint' of beeswax provides a reliable basis for detecting this commodity in organic residues preserved at archaeological sites, which we now use to trace the exploitation by humans of A. mellifera temporally and spatially. Here we present secure identifications of beeswax in lipid residues preserved in pottery vessels of Neolithic Old World farmers. The geographical range of bee product exploitation is traced in Neolithic Europe, the Near East and North Africa, providing the palaeoecological range of honeybees during prehistory. Temporally, we demonstrate that bee products were exploited continuously, and probably extensively in some regions, at least from the seventh millennium cal BC, likely fulfilling a variety of technological and cultural functions. The close association of A. mellifera with Neolithic farming communities dates to the early onset of agriculture and may provide evidence for the beginnings of a domestication process.Natural Environment Research Council (NERC)English HeritageEuropean Research Council (ERC)Leverhulme TrustMinistère de la Culture et de la CommunicationMinistère de l’Enseignement Supérieur et de la RechercheRoyal SocietyWellcome Trus

A novel small and compact flexible monopole antenna for UWB applications

International audienceA novel small flexible elliptical monopole antenna on the basis of the disk monopole antenna structure is presented and developed in this paper. The improved antenna reduces the height and can realize good bandwidth performance; it has low cost, simple structure, and flexible characteristics. The novel elliptical antenna was bent on a cylindrical surface which once more reduces the space in term of larger of the antenna; good performances were achieved compared to flat elliptical one a directional radiation pattern at all frequencies band and an increasing gain were obtained. The impedance bandwidth, radiation pattern and peak gain, of the antennas, are studied and presented, they have been investigated using simulation software CST and experimental results. The measured and simulated results showed excellent agreement. The novel small elliptical monopole antennas will be suitable for UWB applications. © 2018 IEEE

Flexible and conformal printed monopoles for reconfigurable antennas

International audienceThis paper presents the development and design of flexible and conformai printed monopoles for reconfigurable antennas. The main objective is to control the level of radiation in broadside antenna from zero to a maximum by changing the curvature of printed board. Two printed antenna types are considered: thin wire and disk monopole. In the further, with curving radius R increasing, the classical null on the broadside radiation pattern disappears gradually for both wire and disk. Increasing the curvature radius of conformal flexible antenna, and keeping all other parameter's value, wire monopole antenna become mismatched while the disk monopole antenna remains matched for all radius of curvature. The simulated results of various monopoles are compared successfully with measurements. © 2017 Euraap