bluuebunny/crossref_metadata_2025 huggingface dataset:
Albo de pax
Authors: Duque (Olág Rácso) Galo
Published: January 2020

Nuestro artista invitado es Galo Duque, mejor conocido como Olág Rácso. Olág Rácso se destaca por el manejo de diferentes técnicas, tales como el puntillismo, pastel seco, lápices suaves y plumillas, prácticas que se han ido perdiendo con el avance de la tecnología. La obra de Galo Duque expresa sus sentimientos hacia la vida, la mujer y la naturaleza. Sus trabajos han sido expuestos en los museos y espacios públicos más importantes de Ecuador, entre ellos, la Plaza del Teatro, parque El Ejido, Alianza Francesa, Museo Mena Caamaño, Museo del Banco Central, Casa de la Cultura Ecuatoriana, entre otros.
En defensa de la Ilustración. Por la razón, la ciencia, el humanismo y el progreso
Authors: Mejía Rivadeneira Santiago
Published: January 2020

Existen en la actualidad dos tendencias psicológicas y sociales muy marcadas que afectan la manera como la gente enfrenta su cotidianidad y sus problemas. La primera es el llamado “pensamiento positivo”, el cual es un conjunto de prácticas individuales referidas a buscar activamente la felicidad, el optimismo y el éxito. Esta línea de pensamiento ha sido explotada prolijamente en libros de autoayuda, manuales de felicidad exprés, programas de tv con consejos psicológicos, así como por todo tipo de frases y memes para levantar el ánimo y atraer las energías positivas. Cabe resaltar que el pensamiento positivo ha sido apoyado abiertamente por la academia mediante la psicología positiva o la ciencia de la felicidad, que analiza las emociones positivas, así como la importancia de las actitudes mentales, como el optimismo, la realización personal y la felicidad. Es tal el auge académico de esta tendencia que “En Harvard, el curso de introducción a la psicología positiva tuvo 855 estudiantes matriculados en 2006; fue con diferencia el más solicitado de toda la universidad, más incluso que los de economía.
Synthesis, Characterization and Antibacterial Activity from Mixed Ligand Complexes of 8-Hydroxyquinoline and Tributylphosphine for Some Metal Ions
Authors: Abbas Rana Abdulilah , J.jarad Amer , Nafliu Ion Marius , Nechifor Aurelia Cristina
Published: January 2020

Co+2, Ni+2, Cu+2 as well Zn+2 compounds mixed ligand from 8-hydroxyquinoline(8-HQ) also tributylphosphine (PBu3) have been attended at aquatic ethyl alcohol for (1:2:2) (M:8-HQ:PBu3). Produced complexes have been identified by utilizing atomic absorption flame, FT-IR as well UV-Vis spectrum manners also magnetic susceptibility as well as conductivity methods. At addendum antibacterial efficiency from the ligands as well complexes oboist three species about bacteria have been as well examined. Ligands and their complexes show good bacterial efficiencies. Of the gained datum the octahedral geometry was proposed into whole prepared complexes.
Artemisia dracunculus Essential Oil Chemical composition and antioxidant properties
Authors: Fildan Ariadna Petronela , Pet Ioan , Stoin Daniela , Bujanca Gabriel , Lukinich-Gruia Alexandra Teodora , Jianu Calin , Jianu Adelina Maria , Radulescu Matilda , Tofolean Doina Ecaterina
Published: January 2020

Free radical scavenging activity, total phenolic content and the chemical composition of the essential oil isolated by steam distillation from Artemisia dracunculus L. was investigated. The isolation yield was 0.24% (v/w) based on the fresh plant material (leaves). GC-MS investigation identified 21 components, accounting 99.93% of the total amount. The major components were sabinene (42.38%), isoelemicin (12.91%), methyl eugenol (9.09%), elemicin (7.95%) and beta-ocimene (6.46%). The free radical scavenging activity of the essential oil of Artemisia dracunculus L. was evaluated in vitro by the DPPH assay (IC50 = 0.730 � 0.213 mg/mL), BHA and alpha-tocopherol were used as a positive control. The total phenolic content of the tarragon essential oil was evaluated by the Folin-Ciocalteu method (GAE = 0.451 � 0.001 mg/g sample). In view of these data, we consider that tarragon essential oil could represent a new antioxidants source as a reliable option to reduce the usage of synthetic additives.
Simple and Combined Acidic Extraction of Phosphorus from Sewage Sludge Ash
Authors: Militaru Bogdan A. , Pode Rodica , Manea Florica , Linul Petrica A.
Published: January 2020

A comparative behavior of inorganic and organic acids as extraction agents for phosphorous extraction from sewage sludge ash provided by a municipal wastewater plant from Timis County, Romania, was studied in this work. The physical-chemical and morphological properties were determined by X-ray diffraction, FTIR spectroscopy and scanning electron microscopy. Batch simple extraction experiments with hydrochloric acid, sulfuric acid and citric acid were conducted on the sewage sludge ash for phosphorous extraction. The operating conditions for acidic extraction with each acid and combination of sulfuric acid and citric acid were optimized in relation to the acid type, concentration and liquid:solid (LS) ratio. The combination of sulfuric acid and citric acid in volumetric ratio of 0.5 was chosen as optimum extraction agent for phosphorus recovery.
Method of Determination of Rivanol by Laser Induced Fluoroscence
Authors: Palarie Ion , Varut Marius Ciprian , Chirigiu Larisa Marina Elisabeth
Published: January 2020

In this paper has been developed a new method for determination of Ethacridine lactate (rivanol) by laser induced fluorescence (LIF). The method has been used in order to avoid the possibility of error induced in determination of aqueous solution of rivanol by spectrophotometric method due to the shift of absorption band to short wavelength with decreasing of the concentration. The new method allows the determination of rivanol at low concentrations, in the range of 1 mM.
Contributions on the Sensorial, Physico-chemical and Nutritional Characterization of Hare Meat (Lepus europaeus pallas)
Authors: Frunza Gabriela , Simeanu Daniel , Pop Cecilia , Lazar Roxana , Boisteanu Paul Corneliu , Stefan Marcela
Published: January 2020

The growing demand for food worldwide, along with the increasing need for animal protein, lead to the identification of other sources of highest quality meat, then the conventional ones, such as it is the hare meat. The aim of this study was to characterize the sensorial, physico-chemical and nutritional traits of hare meat (Lepus europaeus Pallas) issued from hunting funds in North-East of Romania. The biological material consisted of 79 hares (34 males and 45 females), slaughtered by shooting at the age of about 18 months, during the regular hunting season (1 November to 31 January). Different muscle groups were collected: Longissimus dorsi (LD), Triceps brachi (TB) and Semimembranosus (SM). For physicochemical determinations (measurement of the pH at 24 and 48 hours, of water, proteins, lipids, fatty acids and of ash) were analyzed 237 samples (79 for each muscle group). The results obtained from the sensory analysis are relatively close as a score for the three muscle groups studied. The pH value was higher for TB muscles. The highest amount of protein was observed for LD muscles collected from males (21.65%), while the richest in lipids were the females TB muscles (2.38%). The fatty acids levels were predominantly higher for males (for the most of the assessed fatty acids). Very favorable ratio of PUFA:SFA was identified in LD muscles (1.695 for males and 1.531 for females), in SM muscles (1.679 for males and 1.527 for females), and in TB muscles, as well (1.885 for males and 1.820 for females). The variance analysis revealed insignificant gender related differences for the three muscle groups, concerning the sensorial traits, the pH level, ash content and energy value. However, in proteins, lipids and water levels, there were observed highly significant gender related differences in TB muscles. Also, for some fatty acids, significant statistical differences were found between genders, in all three muscle groups.
TERT Genotyping for Evaluation of Reproduction Failure
Authors: Meszaros Noemi , Andreescu Nicoleta Ioana , Farcas Simona Sorina , Dobrescu Andreea Iulia , Stelea Lavinia Elena , Mathe Endre , Porumb Anca , Puiu Maria
Published: January 2020

Reproduction failure was associated with advanced maternal age, but the mechanism underlying this events were still under debate. Telomere length of the oocytes has been correlated with the embryo quality, the chance of successful pregnancy and further development of the conception. The study included a total of 35 women with pregnancy loss and 35 fertile proven females. Cytogenetic analysis of the chorionic villi was done for all the women from the study lot that exhibit a pregnancy loss. The TERT rs2736100 genotyping was performed after enrollment of the last patient, and the laboratory staff was blinded to the patients� data. Comparing the frequency of the genotypes in the study groups was found that in the study lot the AC genotypes was the most frequent (51.4%), while in the control lot the AA genotypes was the prevalent genotype (60%). The difference between genotypes frequencies in the study lot and the control lot were statistically significant. To our knowledge, this is the first study addressing the potential role of a single nucleotide variant in TERT gene in relation with miscarriage.
Effectiveness of Levonorgestrel - Releasing Intrauterine System in Perimenopausal Bleeding
Authors: Olaru Flavius , Olaru Constantin , Olaru Viviana , Nussbaum Laura , Hogea Lavinia , Folescu Roxana , Grigoras Mirela , Pascu Alina Mihaela , Poroch Vladimir , Erdelean Dragos
Published: January 2020

The study aimed to compare the effectiveness of conservative methods [Levonorgestrel (C21H28O2) � releasing intrauterine system (52 mg), endometrial ablation, hysteroscopy] vs. hysterectomy in perimenopausal bleeding. The study population was represented by 270 women addressed to Genesiun Clinic between 2010-2018 for perimenopausal bleeding because of different pathological circumstances: endometrial hypertrophy, polyps, uterine fibroids, endocervical lesions, chronic endometritis, intrauterine device (IUD)-related pathology, congenital abnormalities. The hysteroscopy is considered the method of choice in the diagnosis/therapeutic management of hemorrhagic metropathy. The hysteroscopic surgery was superior to hysterectomy, taking into account the postoperative complications and recovery, resumption of sexual activity and working. Levonorgestrel-releasing IUS 52 mg proved safe and efficient in treating metrorrhagia associated with endometrial dysplasia, uterine fibroids, and polyps. The bipolar electrosurgical VERSAPOINT system demonstrated good results in the treatment of intrauterine pathology. Our results pointed out the alternative of a surgery a few months after the hysteroscopy and endometrial ablation, and also the possibility of repeating the hysteroscopy procedure after a while, in some cases.
The Galvanic Corrosion Behavior of Phosphated Carbon Steel Used at Carabiners Manufacturing
Authors: Nergis Diana Petronela Burduhos , Nejneru Carmen , Burduhos Nergis Dumitru Doru , Savin Cristian , Sandu Andrei Victor , Toma Stefan Lucian , Bejinariu Costica
Published: January 2020

The carabiners are metallic links used to quickly connect the components of personal fall arrest equipment. Because these systems are used in corrosive environments, the carabiners must possess good corrosion resistance properties. In order to improve these properties, a phosphate layer was chemically deposited by converting on the carabiner material surface. This paper presents the microscopic analysis of the phosphated layer and the galvanic corrosion behavior of phosphated carbon steel, coupled to duralumin and initial carbon steel. Corrosion resistance has been studied for Black Sea water and fire extinguishing solution.
Structure and Magnetic Properties of Amorphous Fe-Zr-Nb-Cu-B-(Y) Ribons
Authors: Gondro Joanna
Published: January 2020

In this paper the results of the structural and magnetic properties for amorphous alloys ribbons Fe86Zr7Nb1Cu1B5 and Fe86Zr4Y3Nb1Cu1B5 were presented. From X-ray diffraction and M�ssbauer investigations we have stated that amorphous ribbons were fully amorphous. The investigated alloys, exhibit poor soft magnetic properties at room temperature. However, at low temperatures they show relatively large magnetic susceptibility and good its time stability.
Updates of Ocular Prostheses. A review of biomaterials and design in anophthalmic socket
Authors: Costea Claudia Florida , Bogdanici Camelia Margareta , Carauleanu Alexandru , Dimitriu Gabriela , Sava Anca , Dumitrescu Nicoleta , Turliuc Mihaela Dana , Cucu Andrei , Ciocoiu Manuela , Dragomir Raluca , Buzduga Catalin Mihai
Published: January 2020

Since Ancient Egypt up to present day, there have constantly been attempts at creating a perfect ocular prosthesis, which would complement the outstanding deficit in the orbit as a result of enucleation, evisceration and which should be biocompatible with the orbital tissue. Over time, there have been used numerous clinical materials, which were the basis of these eye prostheses. By revising literature through the search engines PubMed, MEDLINE and other sources, this article aims at emphasizing, in a chronological sequence, the way in which different types of ocular prostheses were created, but also their advantages and disadvantages. The evolution and design of biomaterials improved the eye rehabilitation process and reduced the complications caused by these prostheses in the anophthalmic socket.
Management of Collapse Tibial Plateau Fractures Using a Hydroxyapatite-Tricalcium Phosphate Ceramic(ATLANTIK�) and Plate Osteosynthesis
Authors: Forna Norin , Scripcaru Andrei , Onofrei Pavel , Stan Cristinel Ionel , Tudor Razvan , Popescu Dragos Cristian
Published: January 2020

The treatment of bone defects in complex proximal tibial plateau fractures is a challenging situation and biphasic tricalcium phosphate (BCP) ceramics are considered the most promising alternative to autologous bone graft. The aim of the experimental part was to retrospectively asses the use of Atlantik� BCP (a mixture of 70% Hydroxyapatite and 30% beta-tricalcium phosphate) combined with plate osteosynthesis for management of 27 collapse tibial plateau fractures. All fractures healed after a mean time 2.8 months, while the mean time for disappearance the radiolucent zones between the implanted ceramic and receiving tissue was 15 weeks. We noticed a Neer score of 85 points with no reaction to bone substitute or evidence of biomaterial degradation. The study demonstrated that biphasic ceramic biomaterial Atlantik�, combined with supportive plate osteosynthesis, is an effective synthetic bone substitute due to a fast healing and good quality osseointegration.
Identification of Physical, Morphological and Chemical Particularities of Mixed Microalgae - Bacteria Granules
Authors: Bumbac Costel , Manea Elena , Banciu Alina , Stoica Catalina , Ionescu Ioana , Badescu Valeriu , Nita Lazar Mihai
Published: January 2020

The growth of population has been linked with the increase usage of chemical compounds design for domestic and industrial use. At its turn, the increased amount of the chemical compound puts an enhanced stress on the environment. In such scenario, the waste management, including the wastewater treatment strategies have become an important part for the environmental protection. Unfortunately, the wastewater treatment procedures have several components which could be improved. Among them aeration process and biomass sedimentation have been the most stringent to tackle, since the aeration alone consume more than 60% from wastewater treatment energy cost. In this study, we proposed a new microalgae-bacteria activated sludge granule which could be an economical and technological solution to the above mentioned issues such as aeration and sedimentation. Moreover, during this study we characterized the physical, morphological and chemical characteristic of the newly formed granules by advances techniques such as electronic and correlative microscopy.
The Glass Ionomer Cement Reinforced with Silver - Premise in Choosing the Teeth Proposed for Orthodontic Purpose Extraction
Authors: Earar Kamel , Porumb Anca , Matei Ruxandra , Cavalu Simona , Popovici Ramona Amina , Focsaneanu Sergiu , Dawod Nazem , Saceleanu Adriana , Todor Liana
Published: January 2020

The glass ionomer cements present very good bio compatibility especially due to the presence of Fluor in their composition. The reactivity from the dental pulp to the ionomer cements is also favorable, even in the case of the profound cavities. The metallic ionomer cements are obturation materials that tend to replace the amalgams and were created by adding of metallic alloys to the glass powder for the purpose of improving the mechanic properties. The resistance to abrasion of the glass ionomer cements reinforced with Ag is increased compared to the ionomer cements, being close to that of the composite resins with micro filling, but inferior to the amalgams or composites for the posterior area. All these properties of the metallic glass ionomers recommend their utilization in accomplishing the definitive obturations of the permanent teeth from the lateral area, where the physiognomic aspect is not on the first place and where it is necessary a material with fast grip. The physical-chemical qualities and the bio compatibility of the glass ionomers reinforced with particles of silver was our premise in their utilization for the obturation of the molars of six years in children.
Effect of a Three-month Period of Diet and pPhysical Activity on Adipokines and Inflammatory Status in Children with Metabolic Syndrome
Authors: Stroescu Ramona , Marginean Otilia , Bizerea Teofana , Gafencu Mihai , Voicu Adrian , Doros Gabriela , Manea Aniko , Motoc Marilena
Published: January 2020

The prevalence of metabolic syndrome (MetS) in the young population continues to rise. This study aimed to determine whether adipokines are significant markers in defining MetS in a pediatric population and to assess the effect of a hypocaloric diet and physical activity on serum concentrations of adiponectin, leptin, and high-sensitivity C-reactive protein (hs-CRP). A prospective study was conducted over a period of 1 year, between January and December 2015, on 66 cases of obesity in children diagnosed at the Louis Turcanu Emergency Hospital for Children in Timisoara, Romania. The patients diagnosed with MetS were put on diet and physical exercise for 3 months. MetS was present in 63.6 % of obese children. There was a significant and positive correlation between MetS and both leptin and hs-CRP and a significant, negative correlation between MetS and adiponectin. After diet and physical activity, 3 patients no longer met the criteria for MetS. Leptin, adiponectin and hs-CRP concentrations statistically improved after a three-month diet and physical activity program. In conclusion, hs-CRP, leptin and adiponectin can be used as predictors of cardiovascular risk in the pediatric population. Diet and physical activity have an impact on metabolic status.
Histopathological and Clinical Characteristics of Surgically Removed Cavernous Venous Malformations (so-called Cavernous Hemangiomas) of the Orbit
Authors: Costan Victor Vlad , Sava Anca , Carauleanu Alexandru , Costea Claudia Florida , Cucu Andrei Ionut , Dimitriu Gabriela , Dumitrescu Gabriela Florenta , Dumitrescu Nicoleta , Stoicescu Maria Silvia , Raftu Gheorghe , Turliuc Mihaela Dana
Published: January 2020

Cavernous venous malformation (CVM) is the most common primary vascular lesion of the orbit. The aim of this study is to present authors �experience regarding fourteen patients with orbital CVM (so-called cavernous hemangioma) and identify their clinical and histopathological particular characteristics. From 2010 to 2017 a total of 14 patients were diagnosed with orbital cavernous hemangiomas and treated by the authors. Patients� socio-demographic, clinical, radiological, and surgical findings were retrospectively retrieved from medical records and analyzed. Diagnosis of a cavernous hemangioma was confirmed histologically in all cases. Results: All 14 patients were females, with a mean age of 44.2 years old, ranging from 13 years to 57 years. The left orbit was affected in eleven (78.57%) cases. A painless, gradually progressive proptosis and visual disturbance were the main clinical signs. In four (28.57%) cases, the lesion was incidentally discovered at imaging evaluations for persistent headache. All patients were accurately diagnosed preoperatively based on computed tomography (CT) exam or magnetic resonance imaging (MRI). The tumors were removed successfully by anterior orbitotomy. Transconjunctival approach proved to be an important surgical procedure in their treatment, with excellent results and a low risk of complications. Histologically, all lesions revealed large vascular channels with endothelium lining and multilaminar smooth muscle layers in their walls, but also nests of small capillary channels in interstitium. No intravascular thrombosis or stromal lymphocytes could be seen. Orbital cavernous hemangiomas presented clinical, imaging and histological features of a benign lesion. Having to deal with extraconal lesions, we successfully used anterior orbitotomy, mainly the transconjuctival approach, with no complications or recurrences after a six-month follow-up period. Histologically, all lesions revealed images being most closely to dysplastic veins. So, we concluded that the so-called orbital cavernous hemangioma was rather a cavernous venous malformation.
Seleksi Terbuka Camat dan Lurah Tahun 2013: Pengalaman Pelaksanaan Seleksi Terbuka Jabatan Struktural PNS di Lingkungan Pemerintah Provinsi DKI Jakarta
Authors: Rubianto Heri
Published: January 2020

Salah satu dari Rencana Aksi 9 (Sembilan) Program Percepatan Reformasi Birokrasi adalah Program Sistem Promosi Pegawai Negeri Sipil (PNS) secara terbuka. Untuk lebih menjamin para pejabat struktural memenuhi kompetensi jabatan sesuai kualifikasi yang diperlukan, Pemerintah Provinsi Daerah Khusus Ibukota (DKI) Jakarta melakukan kegiatan Seleksi Terbuka Camat dan Lurah atau dalam istilah yang populer dinamakan Lelang Jabatan/Open Bidding. Kegiatan Seleksi Terbuka ini dilaksanakan untuk seluruh jabatan Camat dan Lurah di lingkungan Pemerintah Provinsi DKI Jakarta sejumlah 311 (tiga ratus sebelas) jabatan dengan rincian Camat sebanyak 44 (empat puluh empat) jabatan dan Lurah sebanyak 267 (dua ratus enam puluh tujuh) jabatan. Kegiatan tersebut dilaksanakan berdasarkan Sistem Merit dan Terbuka secara obyektif, adil, dan transparan dengan mempertimbangkan kesinambungan karier PNS yang bersangkutan. Kegiatan ini dilaksanakan dalam beberapa tahapan yaitu seleksi administrasi, seleksi kompetensi bidang, seleksi kompetensi manajerial, dan uji kesehatan serta verifikasi dokumen. Menurut Museum Rekor Indonesia (Muri) kegiatan seleksi terbuka camat dan lurah ini merupakan kegiatan seleksi terbuka pejabat publik pertama dan terbesar di Indonesia bahkan di dunia. Pada akhirnya melalui kegiatan ini diharapkan terwujud PNS atau pejabat struktural yang mumpuni yang mempunyai keunggulan kompetensi di bidang masing-masing sejalan dengan tuntutan profesionalisme dan transparansi penyelenggaraan pemerintahan.
Analysis of Method Used to Predict Financial Distress Potential in Pulp and Paper Companies of Indonesia
Authors: Fadrul Fadrul , Ridawati Ridawati
Published: January 2020

This study aims to predict financial distress in pulp and paper companies in Indonesia. The data used are the financial statements of each pul and paper company listed on the Indonesia Stock Exchange in 2012-2017.

Data analysis techniques used descriptive analysis with three methods of financial distress prediction, namely the Altman Z-Score, Springate, and Zmijewski methods. The results showed that the Zmijewski method is a prediction method with the highest accuracy rate of 100%, with an error type of 0%. The Altman Z-Score method has an accuracy rate of 28.6%, with an error type of 71.4%.

While the Springate method has an accuracy rate of 14.3%, with an error type of 85.7%. Therefore an accurate prediction method to predict the potential for financial distress is the Zmijewski method.
Convenient synthesis of the pentasaccharide repeating unit corresponding to the cell wall O-antigen of Escherichia albertii O4
Authors: Manna Tapasi , Gucchait Arin , Misra Anup Kumar
Published: January 2020

A straightforward sequential synthetic strategy has been developed for the synthesis of a pentasaccharide repeating unit corresponding to the cell wall O-antigen of the Escherichia albertii O4 strain in very good yield with the desired configuration at the glycosidic linkages using thioglycosides and trichloroacetimidate derivatives as glycosyl donors and perchloric acid supported over silica (HClO4/SiO2) as a solid supported protic acid glycosyl activator. The expected configuration at the glycosidic linkages was achieved using a reasonable selection of protecting groups in the manosaccharide intermediates.
Synthesis and characterization of zinc and copper oxide nanoparticles and their antibacterial activity
Authors: Asamoah Richard B , Yaya Abu , Mensah Bismark , Nbelayim Pascal , Apalangya Vitus , Bensah Yaw Delali , Damoah Lucas N W , Agyei-Tuffour Benjamin , Dodoo-Arhin David , Annan Ebenezer
Published: January 2020

Inorganic nano-metal oxides can be effective alternatives to drug resistant organic antibiotics due to their broad spectrum antimicrobial activity against pathogenic and mutagenic gram-negative and positive bacteria.  In this study, zinc and copper oxides (ZnO and CuO) were synthesized using a facile wet chemical method. The oxide nanoparticles were characterized using X-ray diffraction (XRD), UV-Vis spectrometer (UV-Vis), Fourier Transformed Infra-red spectrometer and Transmission electron microscopy (TEM). The antibacterial activities of the nanoparticles were investigated against e. coli and s. aureus using the disk diffusion and microdilution tests. The XRD analysis revealed that both zinc and copper oxide nanoparticles were purely crystalline. The TEM micrographs showed that copper oxide nanoparticles assumed a nanorod shape of average length of 100 nm.  Whiles zinc oxide nanoparticles were spherical of average diameter of 15 nm. The FTIR results showed that the nanoparticles were free of impurities and organic surfactants. The optical band gaps of CuO and ZnO according to UV-Vis analysis were respectively 2.63 eV and 3.22 eV. According to the antibacteria tests, the minimum inhibition concentration (MIC) of CuO against e. coli and s. aureus were correspondingly 1mg/ml and 0.25 mg/ml whiles it was 0.1mg/ml for ZnO against s. aureus but ZnO produced no inhibition against e. coli. With the microdilution test, both nanoparticles exhibited activity against both bacteria species at all varying concentrations. CuO had an antibacteria efficiency of 80 to 97% and 85 to 99% for e. coli and s. aureus respectively. The efficiency of ZnO were 20 to 90% and 50 to 89% for e. coli and s. aureus accordingly. The results concluded that CuO had higher antibacteria activity as compared to ZnO.
Cryphonectriaceae on Myrtales in China: phylogeny, host range, and pathogenicity
Authors: Wang W. , Li G.Q. , Liu Q.L. , Chen S.F.
Published: January 2020

Plantation-grown Eucalyptus (Myrtaceae) and other trees residing in the Myrtales have been widely planted in southern China. These fungal pathogens include species of Cryphonectriaceae that are well-known to cause stem and branch canker disease on Myrtales
trees. During recent disease surveys in southern China, sporocarps with typical characteristics of Cryphonectriaceae were observed on the surfaces of cankers on the stems and branches of Myrtales trees. In this study, a total of 164 Cryphonectriaceae isolates were identified
based on comparisons of DNA sequences of the partial conserved nuclear large subunit (LSU) ribosomal DNA, internal transcribed spacer (ITS) regions including the 5.8S gene of the ribosomal DNA operon, two regions of the β-tubulin (tub2/tub1) gene, and the translation elongation
factor1-alpha (tef1) gene region, as well as their morphological characteristics. The results showed that eight species reside in four genera of Cryphonectriaceae occurring on the genera Eucalyptus, Melastoma (Melastomataceae), Psidium (Myrtaceae),
Syzygium (Myrtaceae), and Terminalia (Combretaceae) in Myrtales. These fungal species include Chrysoporthe deuterocubensis, Celoporthe syzygii, Cel. eucalypti, Cel. guang-dongensis, Cel. cerciana, a new genus and two new species,
as well as one new species of Aurifilum. These new taxa are hereby described as Parvosmorbus gen. nov., Par. eucalypti sp. nov., Par. guangdongensis sp. nov., and Aurifilum terminali sp. nov. Pathogenicity tests showed that the eight species of Cryphonectriaceae
are pathogenic to two Eucalyptus hybrid seedlings, Melastoma sanguineum branches, and Psidium guajava and Syzygium jambos seedlings. Theoveralldatashowedthat Chr. deuterocubensis is the most aggressive, followed by Par. eucalypti. Significant differences
in tolerance were observed between the two tested Eucalyptus hybrid genotypes, suggesting that disease-tolerant genotypes can be selected for disease management in the Eucalyptus industry.
Population Synthesis of Helium White Dwarf–Red Giant Star Mergers and the Formation of Lithium-rich Giants and Carbon Stars
Authors: Zhang Xianfei , Jeffery C. Simon , Li Yaguang , Bi Shaolan
Published: January 2020

The formation histories of lithium-rich and carbon-rich red giants are not yet understood. It has been proposed that the merger of a helium-core white dwarf with a red giant branch (RGB) star might provide a solution. We have computed an extended grid of post-merger evolution models and combined these with predictions of binary-star population synthesis. The results strongly support the proposal that the merger of a helium white dwarf with an RGB star can provide the progenitors of both lithium-rich red clump stars and early-R carbon stars. The distribution of post-merger models in T
eff, log g, log L, the surface abundances of lithium and carbon, and the predicted space densities agree well with the observed distributions of these parameters for Li-rich and early-R stars in the Galaxy.
No Significant Evolution of Relations between Black Hole Mass and Galaxy Total Stellar Mass Up to z ∼ 2.5
Authors: Suh Hyewon , Civano Francesca , Trakhtenbrot Benny , Shankar Francesco , Hasinger Günther , Sanders David B. , Allevato Viola
Published: January 2020

We investigate the cosmic evolution of the ratio between black hole (BH) mass (M
BH) and host galaxy total stellar mass (M
stellar) out to z ∼ 2.5 for a sample of 100 X-ray-selected moderate-luminosity, broad-line active galactic nuclei (AGNs) in the Chandra-COSMOS Legacy Survey. By taking advantage of the deep multiwavelength photometry and spectroscopy in the COSMOS field, we measure in a uniform way the galaxy total stellar mass using an spectral energy distribution decomposition technique and the BH mass based on broad emission line measurements and single-epoch virial estimates. Our sample of AGN host galaxies has total stellar masses of 1010−12
M
⊙, and BH masses of 107.0–9.5
M
⊙. Combining our sample with the relatively bright AGN samples from the literature, we find no significant evolution of the M
BH–M
stellar relation with the BH-to-host total stellar mass ratio of M
BH/M
stellar ∼ 0.3% at all redshifts probed. We conclude that the average BH-to-host stellar mass ratio appears to be consistent with the local value within the uncertainties, suggesting a lack of evolution of the M
BH–M
stellar relation up to z ∼ 2.5.
PopSyCLE: A New Population Synthesis Code for Compact Object Microlensing Events
Authors: Lam Casey Y. , Lu Jessica R. , Hosek Matthew W. , Dawson William A. , Golovich Nathan R.
Published: January 2020

We present a new Milky Way microlensing simulation code, dubbed PopSyCLE (Population Synthesis for Compact object Lensing Events). PopSyCLE is the first resolved microlensing simulation to include a compact object distribution derived from numerical supernova explosion models and both astrometric and photometric microlensing effects. We demonstrate the capabilities of PopSyCLE by investigating the optimal way to find black holes (BHs) with microlensing. Candidate BHs have typically been selected from wide-field photometric microlensing surveys, such as OGLE, by selecting events with long Einstein crossing times (t
E > 120 days). These events can be selected at closest approach and monitored astrometrically in order to constrain the mass of each lens; PopSyCLE predicts a BH detection rate of ∼40% for such a program. We find that the detection rate can be enhanced to ∼85% by selecting events with both t
E > 120 days and a microlensing parallax of π
E < 0.08. Unfortunately, such a selection criterion cannot be applied during the event, as π
E requires both pre- and post-peak photometry. However, historical microlensing events from photometric surveys can be revisited using this new selection criterion in order to statistically constrain the abundance of BHs in the Milky Way. The future Wide Field Infrared Survey Telescope (WFIRST) microlensing survey provides both precise photometry and astrometry and will yield individual masses of 

BHs, which is at least an order of magnitude more than is possible with individual candidate follow-up with current facilities. The resulting sample of BH masses from WFIRST will begin to constrain the shape of the BH present-day mass function, BH multiplicity, and BH kick velocity distributions.
OGLE-ing the Magellanic System: Cepheids in the Bridge*
Authors: Jacyszyn-Dobrzeniecka Anna M. , Soszyński Igor , Udalski Andrzej , Szymański Michał K. , Skowron Dorota M. , Skowron Jan , Mróz Przemek , Kruszyńska Katarzyna , Iwanek Patryk , Pietrukowicz Paweł , Poleski Radosław , Kozłowski Szymon , Ulaczyk Krzysztof , Rybicki Krzysztof , Wrona Marcin
Published: January 2020

We present a detailed analysis of the Magellanic Bridge Cepheid sample constructed using the Optical Gravitational Lensing Experiment Collection of Variable Stars. Our updated Bridge sample contains 10 classical and 13 anomalous Cepheids. We calculate their individual distances using optical period–Wesenheit relations and construct three-dimensional maps. Classical Cepheid (CC) on-sky locations match very well neutral hydrogen and young stars distributions; thus, they add to the overall young Bridge population. In three dimensions, 8 out of 10 CCs form a bridge-like connection between the Magellanic Clouds. The other two are located slightly farther away and may constitute the Counter Bridge. We estimate ages of our Cepheids to be less than 300 Myr for from 5 up to 8 out of 10, depending on whether the rotation is included. This is in agreement with a scenario where these stars were formed in situ after the last encounter of the Magellanic Clouds. Cepheids’ proper motions reveal that they are moving away from both Large and Small Magellanic Clouds. Anomalous Cepheids are more spread than CCs in both two and three dimensions, even though they form a rather smooth connection between the Magellanic Clouds. However, this connection does not seem to be bridge-like, as there are many outliers around both Magellanic Clouds.
OGLE-ing the Magellanic System: RR Lyrae Stars in the Bridge*
Authors: Jacyszyn-Dobrzeniecka Anna M. , Mróz Przemek , Kruszyńska Katarzyna , Soszyński Igor , Skowron Dorota M. , Udalski Andrzej , Szymański Michał K. , Iwanek Patryk , Skowron Jan , Pietrukowicz Paweł , Poleski Radosław , Kozłowski Szymon , Ulaczyk Krzysztof , Rybicki Krzysztof , Wrona Marcin
Published: January 2020

We use the extended and updated Optical Gravitational Lensing Experiment (OGLE) Collection of Variable Stars to thoroughly analyze the distribution of RR Lyrae stars in the Magellanic Bridge. We use photometric metallicities to derive the absolute Wesenheit magnitude and individual distance of each RR Lyrae star. We confirm results from our earlier study showing that RR Lyrae stars are present in between the Magellanic Clouds, though their three-dimensional distribution more resembles two extended overlapping structures than a strict bridge-like connection. The contours do connect in the southern parts of the Bridge, albeit on a level too low to state that an evident connection exists. To test the sample numerically, we use multi-Gaussian fitting and conclude that there is no additional population or overdensity located in the Bridge. We also try to reproduce results on the putative RR Lyrae Magellanic Bridge stream by selecting RR Lyrae candidates from Gaia Data Release 1. We show that we are not able to obtain the evident connection of the Clouds without many spurious sources in the sample, as the cuts are not able to remove artifacts without eliminating the evident connection at the same time. Moreover, for the first time, we present the Gaia Data Release 2 RR Lyrae stars in the Magellanic Bridge area and show that their distribution matches our results.
Plasma-beta Modulated Characteristics of Magnetohydrodynamic Waves around the Heliospheric Current Sheet
Authors: Li Hui , Li Nianwang , Wang Chi , Yao Shuo
Published: January 2020

The magnetohydrodynamics (MHD) wave modes in the heliospheric current sheet (HCS) and the associated heliospheric plasma sheet (HPS) have not been comprehensively investigated in the literature. Based on a frequency-related identification approach, the properties of MHD waves are investigated during 154 HCS crossings observed by the Wind spacecraft from 1995 to 2013. Statistically, the incidence of MHD waves around HCS/HPS is found to be modulated by the plasma β within the HPS: (1) β > 5, both Alfvén and slow waves obviously decay within the HPS, with the occurrence rate (OR) decreasing from 60% and 20% in the upstream/downstream to 41% and 14% in the HPS vicinity, respectively; (2) 1 < β ≤ 5, the OR of Alfvén waves (AWs) remains nearly stable. However, more slow waves are generated after the HCS crossing, with OR increasing from 13% in the upstream/downstream to 22%; (3) β ≤ 1, the OR of Alfvén and slow waves remains at ∼58% and 20% during the entire crossing, in spite of some irregular fluctuations. The results for the HCS without a clear HPS are similar to the situations of a low β HPS. The parametric decay instability of AWs is proposed as being responsible for the more slow waves generated in the moderate β HPS, and some indirect observational clues are also given.
Cytogenetic data for sixteen ant species from North-eastern Amazonia with phylogenetic insights into three subfamilies
Authors: Aguiar Hilton Jeferson Alves Cardoso de , Barros Luísa Antônia Campos , Inês Silveira Linda , Petitclerc Frédéric , Etienne Sandrine , Orivel Jérôme
Published: January 2020

Ants play essential roles in most terrestrial ecosystems and may be considered pests for agriculture and agroforestry. Recent morphological and molecular data have challenged conventional ant phylogeny and the interpretation of karyotypic variations. Existing Neotropical ant cytogenetic data focus on Atlantic rainforest species, and provide evolutionary and taxonomic insight. However, there are data for only 18 Amazonian species. In this study, we describe the karyotypes of 16 ant species belonging to 12 genera and three subfamilies, collected in the Brazilian state of Amapá, and in French Guiana. The karyotypes of six species are described for the first time, including that of the South American genusAllomerusMayr, 1878. The karyotype ofCrematogasterLund, 1831 is also described for the first time for the New World. For other species, extant data for geographically distinct populations was compared with our own data, e.g. for the leafcutter antsAcromyrmex balzani(Emery, 1890) andAtta sexdens(Linnaeus, 1758). The information obtained for the karyotype ofDolichoderus imitatorEmery, 1894 differs from extant data from the Atlantic forest, thereby highlighting the importance of population cytogenetic approaches. This study also emphasizes the need for good chromosome preparations for studying karyotype structure.
Réfléchi et causatif
Authors: Creissels Denis
Published: January 2020

Cet article est consacré aux interactions possibles entre réflexivisation et causativisation. Il examine successivement la dérive sémantique de constructions de verbes transitifs combinant causativisation et réflexivisation, la dérive sémantique de constructions de verbes intransitifs combinant causativisation et réflexivisation, et la question des constructions réfléchies implicitement causatives.
Analyse sémantique des formes ‹se-verbe› avec un argument oblique en français
Authors: Janic Katarzyna
Published: January 2020

Dans la tradition scolaire du français, le classement des différentes formes ‹ se -verbe› est centré sur quatre prototypes : réfléchi, réciproque, passif et lexicalisé (Creissels 2006). Dans cette étude, nous examinons le cas peu documenté de l’antipassif. L’intérêt particulier se porte sur les formes de l’antipassif accompagnées d’un argument oblique. L’analyse proposée cherche à explorer ce phénomène, en le distinguant d’autres ‹ se -verbes› qui sont comparables dans une analyse de surface, mais qui relèvent en réalité de l’emploi réfléchi ou de l’emploi lexicalisé. À cette fin, nous approfondissons l’étude de l’aspect sémantique des formes ‹ se -verbe› à argument oblique.
Métaphores et discours experts : conflit et cohérence à l’épreuve du transfert interlinguistique
Authors: Rossi Micaela
Published: January 2020

Le modèle d’analyse des métaphores proposée par Prandi (2017) et fondé sur le degré de conflit de l’interaction métaphorique sera mis dans ces pages à l’épreuve de la métaphore terminologique. Nous nous concentrerons notamment sur la corrélation possible entre la nature conflictuelle ou cohérente de la métaphore et les dynamiques qui se manifestent au cours de la traduction, en particulier pour ce qui concerne les retombées des choix de traduction sur la fonction des métaphores comme outils de cadrage (framing) dans les discours experts.
Cultures juvéniles, lecture et lecteurs
Authors: Aquatias Sylvain
Published: January 2020

Au contraire d’autres domaines culturels, la lecture reste un aspect des cultures juvéniles fortement subordonné au monde scolaire. Deux enquêtes menées dans l’académie du Limousin permettent de considérer les facteurs agissant sur les gouts des élèves : sexe, origine sociale, parcours scolaire. Si on perçoit chez une fraction non négligeable des filles lisant beaucoup une tendance à ne pas apprécier les livres lus en classe, les enseignants restent des prescripteurs importants de lecture. Les cultures juvéniles offrent certes des univers transmédiatiques susceptibles de favoriser le passage à la lecture, mais l’éclectisme des élèves se forme d’abord au contact des littératures légitimes. Or la lecture adolescente reste largement soumise aux origines sociales et subit la concurrence de nouvelles activités que soutiennent les sociabilités propres à cet âge. En ce sens, les lectures défendues par l’école permettent que les élèves disposent d’une ouverture au-delà des cultures juvéniles.
Fantasy et formation des sujets lecteurs au collège et au lycée
Authors: Olivier Isabelle
Published: January 2020

Si les « mauvais genres » ont fait l’objet, déjà depuis les années 1980, de réflexions sur leur place en classe de français, il n’en va pas de même pour celui de la fantasy , en plein essor depuis une vingtaine d’années, depuis le succès de Harry Potter . Après avoir analysé les relations entre fantasy , cultures juvéniles et culture de masse, nous mettons en évidence la position ambivalente de l’institution scolaire par rapport au genre, en essayant d’en comprendre les raisons. Le potentiel didactique de la fantasy est alors interrogé, particulièrement en termes de lecture et de culture littéraires (approche des genres, de l’intertextualité, analyse d’images, immersion fictionnelle). In fine , il s’agit de montrer comment ce genre, réputé particulièrement immersif, pourrait néanmoins favoriser le développement d’authentiques postures de sujet-lecteur chez les élèves, au collège comme au lycée.
Investissements directs chinois en Asie du Sud-Est : une nouvelle dynamique au service d’une stratégie de puissance
Authors: Lafaye de Micheaux Elsa
Published: January 2020

Au sein d’une région où la présence économique de la Chine a récemment changé d’échelle, décrire les investissements directs étrangers (IDE) chinois en Asie du Sud-Est ne va pas de soi malgré la disponibilité des sources. Cela paraît cependant nécessaire car les investissements à l’étranger entrent dans une stratégie et une dynamique de montée en puissance de la Chine, et ce depuis le début du xxi e  siècle. En ASEAN, le rythme de leur progression est particulièrement rapide. L’analyse de la répartition spatiale et sectorielle de ces flux d’investissements directs montre que la logique industrielle et de développement croise et recouvre les dimensions politiques et géopolitiques d’une stratégie de puissance à l’échelle de la région.
L’alimentation : un nouvel enjeu pour les espaces ruraux
Authors: Delfosse Claire
Published: January 2020

Cet article vise à explorer la question de l’alimentation en milieu rural. Il s’articule autour de deux points principaux : les ressources dont disposent les habitants et les stratégies qu’ils mobilisent pour se nourrir. Se nourrir en milieu rural revêt des spécificités liées à la faible densité, et aux questions de mobilité propres aux espaces ruraux. L’approvisionnement alimentaire y fait appel à des « formes anciennes » spécifiques qui se renouvellent et sont elles-mêmes support d’innovation, comme l’itinérance ou le jardinage. Les innovations portent sur de nouvelles formes d’agriculture et de distribution qui renouent avec la proximité. Elles révèlent également la multiplicité des initiatives en faveur du lien social en milieu rural.
Quelles coopérations entre les métropoles et les territoires ruraux en France ? Les pactes État-métropoles et l’expérimentation des contrats de réciprocité
Authors: Doré Gwénaël
Published: January 2020

L’effet quasi mécanique d'entraînement du développement économique des métropoles sur leurs espaces environnants doit être nuancé : il doit être complété par la nécessité d'intégrer dans les stratégies de développement territorial la plus-value de l'espace rural pour l'attractivité et l'équilibre des cœurs urbains. Par conséquent, « la complémentarité entre ville centre et territoires périphériques doit être considérée non pas simplement comme une question de solidarité ex-post, de cohésion sociale et d'égalité devant les services publics », mais comme « une question stratégique pour le développement à moyen terme du territoire dans son ensemble » (Gilli, 2015). Ainsi les pactes État-métropoles signés en France à partir de la fin de 2016 comportent un volet de coopération métropolitaine et par ailleurs, six « contrats de réciprocité » ont été mis en place entre des métropoles et des territoires ruraux. Aussi, après avoir présenté le processus d’institutionnalisation des métropoles françaises et les relations de celles-ci avec leur hinterland, nous examinons la question de l'incitation à la coopération des métropoles avec les territoires alentour, notamment au travers des récents pactes État-métropoles, et enfin nous analysons les premiers contrats de réciprocité signés.