Analogs of Martian eolian features in southwestern Egypt

Emphasis was placed on the morphology and patterns of streaks in the Uweinat region, the relationship of topography to streak patterns, and correlation of field and laboratory studies of the desert surface sediments with color and tonal variations seen from orbit. The research objectives were to provide the necessary groundtruth information on terrestrial eolian features in order to properly interpret the orbital data and to use the interpretations as a basis for investigation of Martian eolian features

Morphologic studies of the Moon and planets

The impact, volcanic, and tectonic history of the Moon and planets were investigated over an eight year period. Research on the following topics is discussed: lunar craters, lunar basins, lunar volcanoes, correlation of Apollo geochemical data, lunar geology, Mars desert landforms, and Mars impact basins

Phyolin: Identifying a Linear Perfect Phylogeny in Single-Cell DNA Sequencing Data of Tumors

Cancer arises from an evolutionary process where somatic mutations occur and eventually give rise to clonal expansions. Modeling this evolutionary process as a phylogeny is useful for treatment decision-making as well as understanding evolutionary patterns across patients and cancer types. However, cancer phylogeny inference from single-cell DNA sequencing data of tumors is challenging due to limitations with sequencing technology and the complexity of the resulting problem. Therefore, as a first step some value might be obtained from correctly classifying the evolutionary process as either linear or branched. The biological implications of these two high-level patterns are different and understanding what cancer types and which patients have each of these trajectories could provide useful insight for both clinicians and researchers. Here, we introduce the Linear Perfect Phylogeny Flipping Problem as a means of testing a null model that the tree topology is linear and show that it is NP-hard. We develop Phyolin and, through both in silico experiments and real data application, show that it is an accurate, easy to use and a reasonably fast method for classifying an evolutionary trajectory as linear or branched

El desove de la sardina (Sardina pilchardus) a la luz del análisis del contenido de grasa

Sardine samples from commercial catches obtained by purse seiners operating in Croatian fishing grounds (eastern Adriatic Sea) were collected monthly from March 2017 to February 2018 (excluding January due to a fishing ban). A total of 1085 sardines were analysed. Their total body length and mass ranged from 11.5 to 16.9 cm (mean±SD: 13.9±0.03 cm) and from 11.30 to 54.03 g (mean±SD: 20.31±0.161 g), respectively. Analysis of the length-mass relationship showed positive allometric growth (b=3.3573, r=0.948). Female specimens were predominant (m/f=0.404). According to the monthly gonadosomatic index values, spawning occurred from November to February, which was consistent with previous investigations. The monthly analysis of fat content in the gonads, liver and muscles indicated that the fat content in each studied tissue oscillated seasonally regardless of sex. These alternations were linked to the sardine’s reproductive cycle.Las muestras de sardina de las capturas comerciales obtenidas por los cerqueros que operan en los caladeros croatas (este del mar Adriático) se recogieron mensualmente desde marzo de 2017 hasta febrero de 2018 (excluyendo enero debido a una prohibición de pesca). Se analizaron un total de 1085 sardinas. Su longitud corporal total y masa variaron de 11.5 a 16.9 cm (media±DE: 13.9±0.03 cm) y de 11.30 a 54.03 g (media±DE: 20.31±0.161 g), respectivamente. El análisis de la relación longitud-masa mostró un crecimiento alométrico positivo (b=3.3573, r=0.948). Predominaron los especímenes femeninos (m/f=0.404). De acuerdo con los valores del índice gonadosomático (GSI) mensuales, el desove se produjo de noviembre a febrero, lo cual fue consistente con las investigaciones anteriores. El análisis mensual del contenido de grasa en las gónadas, el hígado y los músculos indicó que el contenido de grasa en cada tejido estudiado oscilaba estacionalmente independientemente del sexo. Estas alternancias estaban vinculadas al ciclo reproductivo de la sardina

THE ANONYMOUS DRAWING OF HISTORIC TABARKA, TUNISIA

[EN] Kept in the Simancas General Archive is an original manuscript drawing, which is anonymous and of uncertain age. It portrays a general, long distance view of the island of Tabarka (MPD, XIV-15, belonging to the State collection, Lº 5622). Research carried out as part of an international project on urban settlements founded between the XVI and XVIII centuries on island territories under Hispano-Italian rule (Integrated Action, MINICIN HI-2008-0197) has provided information which helps to illustrate this excellent graphical document.[ES] El Archivo de Simancas conserva un dibujo manuscrito original, anónimo y de fecha incierta, que representa una vista general y remota del islote de Tabarka (MPD, XIV-15, proveniente de la serie de Estado, Lº 5622). Las investigaciones llevadas a cabo en el seno del proyecto internacional sobre los asentamientos urbanos fundados entre los siglos XVI y XVIII en las respectivas posesiones insulares hispano-italianas (Acción Integrada, MINICIN HI- 2008-0197) han aportado datos que contribuyen a ilustrar este excelente documento gráfico.Juan Vidal, F. (2012). EL DIBUJO ANÓNIMO DE LA ANTIGUA TABARKA, TÚNEZ. EGA. Revista de Expresión Gráfica Arquitectónica. 17(19):90-101. doi:10.4995/ega.2012.1361SWORD901011719Esteban Chapapría J. y Sicluna Lletget, R. (1990): "La Ciutat de València i la seua Arquitectura vista per Van den Wijngaerde el 1563", en Les Vistes Valencianes d'Antonie Van den Wijngaerde (1563). V.M. Roselló. Consellería de Educación y Ciencia de la Generalitat Valenciana. Valencia.Vilar, J. B. (1991): Mapas Planos y Fortificaciones Hispánicos de Túnez (s. XVI-XIX). Instituto de Cooperación con el Mundo Árabe, Agencia Espa-ola de Cooperación Internacional, Ministerio de Asuntos Exteriores. Madrid

Validation of landslide susceptibility using a GIS-based statistical model and Remote Sensing Data in the Amzaz watershed in northern Morocco

The main objective of this research is to examine and validate the landslide susceptibility assessment (LSA)results of the spatial probability of landslide occurrence in the Amzaz watershed area in Northern Morocco,setting out to create a helpful agent for the decision-makers of land-use policies. In order to reach the maingoal of this study, two sub-objectives were defined: the presenting of the physiography and the cartographyof the geographical components of the study area, and the analysis of the LSA using a statistical-basedmethod, Information Value Method (IVM), as a criteria required by the Model. Lastly, the validation of theresults through the prediction and success rates was carried out. Landslide susceptibility is the probabilitythat landslides will be generated in the predicted zone depending on local terrain characteristics.Several methods are proposed for landslide susceptibility assessment worldwide. IVM has been applied toprepare the landslide susceptibility map. This paper envisages the definition of the settings of the study areaas well as the geophysical characteristics by means of the acquisition and preparation of predisposing factors,such as the geology, land use and climate and the application of the IVM on LSA using a statistically basedmethod for each subset of the landslide inventory.This study is aimed at a prediction vision for sustainability as an alternative and this is not limited todegradation processes. It also concerns the efforts made to adapt to the impacts and even those of mitigatingchange. The promotion of sustainable development in risk areas requires an effort to analyze and evaluatelocal practices and approaches. This is what we are trying to do through this work, which starts from amethodological basis to validate a model for predicting landslides affecting the Moroccan Central Rif area