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We present the description of Sanguibacter massiliensis sp. nov., Actinomyces minihominis sp. nov., Clostridium minihomine sp. nov., Neobittarella massiliensis gen. nov. and Miniphocibacter massiliensis gen. nov., new bacterial species isolated by culturomics from human stool samples. Keywords: Actinomyces minihominis sp. nov., Clostridium minihomine sp. nov., Miniphocibacter massiliensis gen. nov., Neobittarella massiliensis gen. nov., Sanguibacter massiliensis sp. nov

The taxonogenomic approach, including the culturomics techniques, is now currently used to isolate and characterize new bacteria. These approaches notably allowed us to discover six new species of the Actinomyces genus: Actinomyces ihuae strain SD1, Actinomyces bouchesdurhonensis strain Marseille-P2825, Actinomyces urinae strain Marseille-P2225, Actinomyces marseillensis strain Marseille-P2818, Actinomyces mediterranea strain Marseille-P3257 and Actinomyces oralis strain Marseille-P3109. Each is the type strain of the corresponding bacterial species. 16S ribosomal RNA gene sequence comparison was used to classify these strains among the Actinomyces genus. These strains are all Gram positive, rod shaped and facultative aerobic. We describe the main characteristics of each bacterium and present their complete genome sequence and annotation. Keywords: Culturomics, Human gut microbiota, Human lung microbiota, New species, Taxonogenomics

International audience; The interest in studying gut microbiota has been rekindled with the advent of molecular techniques, in particular, metagenomics. Culturomics (high throughput microbial culture with identification of the colonies by Maldi-TOF) has demonstrated its complementarity with metagenomics for comprehensive study of the microbiota. The main metagenomic studies have revealed an increase in biodiversity, with in particular an increase of Spirochaetes and Prevotella in subjects of African origin compared with Western subjects. Studies on malnutrition have shown a reduction of all bacteria and in particular of anaerobic bacteria and methanogenic archaea. Of the 1,162 bacteria isolated by culturomics studies, 476 were isolated only from non-African samples, 445 were isolated in African and non-African groups, and 241 bacteria were isolated from samples of African origin including 68 new species. Further studies of African microbiota by culturomics and metagenomics will make it possible to assess whether some bacteria have particular specificities and if these might play a role in certain pathologies such as malnutrition.

Culturomics is a concept developing different culture conditions in order to enlarge our knowledge of the human microbiota through the discovery of previously uncultured bacteria. This enabled us to isolate six new species of the Bacteroides genus: Bacteroides mediterraneensis strain Marseille-P2644, Bacteroides ihuae strain Marseille-P2824, Bacteroides togonis strain Marseille-P3166, Bacteroides ndongoniae strain Marseille-P3108, Bacteroides ilei strain Marseille-P3208 and Bacteroides congonensis strain Marseille-P3132. Those bacteria are Gram-negative anaerobic bacilli. We describe here their phenotypic features, together with phylogenetic analysis, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry spectrum, fatty acid composition, and genome sequencing and annotation. Keywords: Bacteroides species, culturomics, emerging bacteria, human microbiota, taxonogenomics

In this study, variations in permeability of a gold ore by nut shell addition was studied. Ore particle size, nut shell size and volume fraction in the ore were the parameters investigated. Permeability is an important issue in heap leach operations considering the processing duration. Particularly below 6 mm particle size permeability is greatly hampered. Turkey is the leading country in the world in hazelnut production. Therefore, considerable amounts of nut shell are obtained as a by-product. Incerase in the permeability of a finely crushed ore will obviously enable an increase in the leaching efficiency. The finer the particle size the more the liberation of gold is yet the permeability is lower. Therefore, this study focuses on the possibility of improving the permeability of ore heaps with nut shell addition. Optimum amount of nut shell which should be added to the ore was found to be 5% by volume. It was found that the permeability of ore crushed below 2.36 mm considerably increased by the addition of nut shell below 18 mm. © Wroclaw University of Science and Technology.

International audience; We report the isolation of a new bacterium species, 'Lactobacillus raoultii' strain Marseille P4006 (CSUR P4006), isolated from a vaginal sample of a 45-year-old woman with bacterial vaginosis

International audience; This study supports the main characteristics of the new genus and new species 'Phoenicibacter massiliensis' strain Marseille-P3241(T) (CSUR P3241), a new bacterium isolated from a stool sample of a healthy 47-year-old pygmy woman.

25th International Mining Congress of Turkey: New Trends in Mining, IMCET 2017 -- 11 April 2017 through 14 April 2017 -- -- 127813, In this study, Tincal samples from Bandirma Boron Plant were taken for the period of October 2015. Tincal samples from the feed stream were collected for a one-month period on daily basis. A total number of 31 samples were analyzed in terms of moisture content and B2O3 grade. Moisture content and grade of the run of mine ore have an effect on the recovery of the boron processing plant. Concentrate grade was also determined at the same period where feed samples were collected and a correlation was tried to be established. Recovery of the plant was calculated each day as assuming the daily feed amount of Tincal as 500 tonnes (monthly 15000 tonnes) and daily product of 200 tonnes (monthly 6000 tonnes). Feed Tincal moisture contents vary between 2.77% and 5.54%. Although this range of moisture content is not a big deal, it might be related with increase or decrease in recovery percentages. B2O3 grade of the feed ore varied between 22.67 % and 27.25%. This approximately 5% range could be meaningfull, an increase in feed grade would also cause an increase in product B2O3 grade as expected. In this study, feed moisture and feed grade was correlated with recovery and a new method to predict recovery is proposed. According to this new method, recovery of B2O3 would be easily calculated by just employing the moisture content and grade data of run of mine ore. Very high correlation coefficient (R2=0.99) between measured and predicted recovery was achieved. This proposed method would enable one to better understand the effect of moisture content and tenor of run of mine ore on recovery.

International audience; This study supports the main characteristics of a new genus 'Gabonibacter timonensis' strain Marseille-P3388 (CSUR P3388); a new member of the Gabonibactergenus and Porphyromonadaceae family, that was isolated from a stool sample of a healthy 47-year-old Pygmy woman.

International audience; This study supports the main characteristics of a new genus 'Pygmaiobacter' and a new species 'Pygmaiobacter massiliensis' strain Marseille-P3336 (CSUR P3336);that was isolated from a stool sample of a healthy 47-year-old Pygmy woman. The Institut Fédératif de Recherche ethics committee, gave approval for this study under the number 09-022. Samples were collected for microbial content description as part of the human microbiome description by culturomics.

International audience; We report the main characteristics of a new species 'Raoultibacter timonensis' strain Marseille-P3277 (CSUR P3277), a new member of the genus Raoultibacter,that was isolated from a stool sample of a healthy 11-year-old Pygmy woman.

The reactions between spinel (MgAl2O4) and Al alloys of different compositions were investigated at temperatures of between 800-1250degreesC for different times under different atmospheres of air and nitrogen. Although Al metal did not infiltrate into the spinel in ambient atmosphere, oxide growth on the metal surface took place at temperatures of 1250degreesC depending on the alloy composition and firing time. Spontaneous infiltration of the Al metal into the spinel occured under nitrogen at 900degreesC. X-ray diffraction analysis revealed that the composite consisted of MgAl2O4, Al, MgO and Al2O3. The resultant microstructure was also investigated by scanning electron microscopy.

Boron oxide has been found to be useful flux for the preparation of dense anorthite ceramics (CaO.Al2O3.2SiO(2)). Inexpensive starting materials of kaolinite, calcium carbonate and silica were used for anorthite ceramic production. Colemanite (2CaO.3B(2)O(3).5H(2)O) was added into the mixtures and the effects of colemanite upon the transformation towards anorthite and on the densification were investigated between 900-1400 degreesC. Single phase anorthite ceramic formed at lower temperatures in boron containing mixtures. Boron containing powder compacts were sintered above 90% theoretical density at 1350 degreesC.

26th International Mining Congress and Exhibition of Turkey, IMCET 2019 -- 16 April 2019 through 19 April 2019 -- -- 151960, This study covers the investigation of rock crushability using laboratory-scale cone and jaw crushers for five types of hardrocks. For this purpose, physico?mechanical properties of the investigated rocks are determined. Aggregate samples with a particle size range of 10.00 - 14.00 mm are prepared for crushability tests. After performing crushability tests, crushed particles are sieved and considering sieve analysis results, crushability indices are identified for each rock and crusher type. The performance of the crushers concerning their experimental setup is investigated by Taggart method. It is achieved from crushability tests that, the performance of the cone crusher is approximately two times better than the one of the jaw crusher for their experimental setups. The crushing time (Tc) seems to increase with increasing in rock strength properties. Furthermore, remarkable relationships are obtained between several rock properties and crushability test results. It can be claimed that crushability of rocks are dependent upon crusher type, setup of crushing process, rock strength as well as the mineral hardness. Considering these types of variables, higher achieving benefits of aggregate production could be satisfied at lower costs. Copyright © IMCET 2019 International Mining Congress and Exhibition of Turkey. All rights reserved.

Background: understanding SARS-CoV-2 seroprevalence among health care personnel is important to ex-plore risk factors for transmission, develop elimination strategies and form a view on the necessity and frequency of surveillance in the future. Methods: we enrolled 4927 health care personnel working in pediatric units at 32 hospitals from 7 different regions of Turkey in a study to determine SARS Co-V-2 seroprevalence after the first peak of the COVID-19 pandemic. A point of care serologic lateral flow rapid test kit for immunoglobulin (Ig)M/IgG was used. Seroprevalence and its association with demographic characteristics and possible risk factors were analyzed. Results: SARS-CoV-2 seropositivity prevalence in health care personnel tested was 6.1%. Seropositivity was more common among those who did not universally wear protective masks (10.6% vs 6.1%). Having a COVID-19-positive co-worker increased the likelihood of infection. The least and the most experienced personnel were more likely to be infected. Most of the seropositive health care personnel (68.0%) did not suspect that they had previously had COVID-19. Conclusions: health surveillance for health care personnel involving routine point-of-care nucleic acid testing and monitoring personal protective equipment adherence are suggested as important strategies to protect health care personnel from COVID-19 and reduce nosocomial SARS-CoV-2 transmission., NA

In this paper, we test the causal relationship between economic growth and tourism development in the 1995-2012 period using recently developed panel Granger causality tests that allow for country-level heterogeneity, thus leading to more accurate results for the 12 Mediterranean countries. Although results of the Dumitrescu and Hurlin [(2012) testing for Granger non-causality in heterogeneous panels. Economic Modelling, 29(4), 1450-1460] panel Granger causality test show a unidirectional causality from tourism development to economic growth, results of the Croux and Reusens [(2013). Do stock prices contain predictive power for the future economic activity? A Granger causality analysis in the frequency domain. Journal of Macroeconomics, 35, 93-103] panel Granger causality analysis in the frequency domain show that there is a bidirectional temporary and permanent causality between tourism development and economic growth. The bidirectional causality relationship between tourism development and economic growth, which is the main finding of this study, suggests that in order to achieve high economic growth, policy-makers should focus on developing the tourism sector.