bluuebunny/crossref_metadata_2025_split huggingface dataset:
Measurements of Concentration differences between Liquid Mixtures using Digital Holographic Interferometry
Authors: Guerrero-Méndez Carlos , Saucedo-Anaya Tonatiuh , Araiza-Esquivel Maria , Balderas-Navarro Raúl E. , López-Martínez Alfonso , Olvera-Olvera Carlos 
Published: March 2017

Abstract
We present an alternative method to detect and measure the concentration changes in liquid solutions. The method uses Digital Holographic Interferometry (DHI) and is based on measuring refractive index variations. The first hologram is recorded when a wavefront from light comes across an ordinary cylindrical glass container filled with a liquid solution. The second hologram is recorded after slight changing the liquid’s concentration. Differences in phase obtained from the correlation of the first hologram with the second one provide information about the refractive index variation, which is directly related to the changes in physical properties related to the concentration. The method can be used − with high sensitivity, accuracy, and speed − either to detect adulterations or to measure a slight change of concentration in the order of 0.001 moles which is equivalent to a difference of 0.003 g of sodium chloride in solutions. The method also enables to measure and calculate the phase difference among each pixel of two samples. This makes it possible to generate a global measurement of the phase difference of the entire sensed region.
Effects of Radiation Doses on the Photostimulated Luminescence Response of Certain Herbs and Spices
Authors: Sandeva Ivana , Spasevska Hristina , Ginovska Margarita , Stojanovska-Georgievska Lihnida 
Published: March 2017

Abstract
Ionizing radiation applied on food eliminates harmful microorganisms, prevents sprouting and delays ripening. All methods for detection of irradiated food are based on physical, chemical, biological or microbiological changes caused by the treatment with ionizing radiation. When minerals are exposed to ionizing radiation, they accumulate radiation energy and store it in the crystal lattice, by which some electrons remain trapped in the lattice. When these minerals are exposed to optical stimulation, trapped electrons are released. The phenomenon, called optically stimulated luminescence or photostimulated luminescence, occurs when released electrons recombine with holes from luminescence centers in the lattice, resulting in emission of light with certain wavelengths.
In this paper, the results of measurements performed on seven different samples of herbs and spices are presented. In order to make a comparison between luminescence signals from samples treated with different doses, unirradiated samples are treated with Co-60 with doses of 1 kGy, 5 kGy and 10 kGy. In all cases it was shown that the higher the applied dose, the higher the luminescence signal.
A New Approach to Measurement of Frequency Shifts Using the Principle of Rational Approximations
Authors: Murrieta-Rico Fabian N. , Petranovskii Vitalii , Sergiyenko Oleg Y. , Hernandez-Balbuena Daniel , Lindner Lars 
Published: March 2017

Abstract
When a frequency domain sensor is under the effect of an input stimulus, there is a frequency shift at its output. One of the most important advantages of such sensors is their converting a physical input parameter into time variations. In consequence, changes of an input stimulus can be quantified very precisely, provided that a proper frequency counter/meter is used. Unfortunately, it is well known in the time-frequency metrology that if a higher accuracy in measurements is needed, a longer time for measuring is required. The principle of rational approximations is a method to measure a signal frequency. One of its main properties is that the time required for measuring decreases when the order of an unknown frequency increases. In particular, this work shows a new measurement technique, which is devoted to measuring the frequency shifts that occur in frequency domain sensors. The presented research result is a modification of the principle of rational approximations. In this work a mathematical analysis is presented, and the theory of this new measurement method is analysed in detail. As a result, a new formalism for frequency measurement is proposed, which improves resolution and reduces the measurement time.
A mathematical/physics carbon emission reduction strategy for building supply chain network based on carbon tax policy
Authors: Li Xueying , Peng Ying , Zhang Jing 
Published: March 2017

Abstract
Under the background of a low carbon economy, this paper examines the impact of carbon tax policy on supply chain network emission reduction. The integer linear programming method is used to establish a supply chain network emission reduction such a model considers the cost of CO2 emissions, and analyses the impact of different carbon price on cost and carbon emissions in supply chains. The results show that the implementation of a carbon tax policy can reduce CO2 emissions in building supply chain, but the increase in carbon price does not produce a reduction effect, and may bring financial burden to the enterprise. This paper presents a reasonable carbon price range and provides decision makers with strategies towards realizing a low carbon building supply chain in an economical manner.
The genus Clunio Haliday, 1855 from Egypt (Hurghada, Red Sea) with a description of the larva of Clunio sp.1 (Diptera, Chironomidae, Orthocladiinae)
Authors: Abdelsalam Khaled Mahmoud 
Published: March 2017

Abstract
Larval populations of Clunio sp.1 are reported for the first time from marine fouling samples obtained in Hurghada during November 2015. This is a new record for the Egyptian Red Sea fauna. A full structural description of the larva is provided and its local distribution is discussed.
Genetic counselling, BRCA1/2 status and clinico-pathologic characteristics of patients with ovarian cancer before 50 years of age
Authors: Cvelbar Mirjam , Hocevar Marko , Novakovic Srdjan , Stegel Vida , Perhavec Andraz , Krajc Mateja 
Published: March 2017

Abstract

Background
In Slovenia like in other countries, till recently, personal history of epithelial ovarian cancer (EOC) has not been included among indications for genetic counselling. Recent studies reported up to 17% rate of germinal BRCA1/2 mutation (gBRCA1/2m) within the age group under 50 years at diagnosis. The original aim of this study was to invite to the genetic counselling still living patients with EOC under 45 years, to offer gBRCA1/2m testing and to perform analysis of gBRCA1/2m rate and of clinico-pathologic characteristics. Later, we added also the data of previously genetically tested patients with EOC aged 45 to 49 years.

Patients and methods
All clinical data have to be interpreted in the light of many changes happened in the field of EOC just in the last few years: new hystology stage classification (FIGO), new hystology types and differentiation grades classification, new therapeutic possibilities (PARP inhibitors available, also in Slovenia) and new guidelines for genetic counselling of EOC patients (National Comprehensive Cancer Network, NCCN), together with next-generation sequencing possibilities.

Results
Compliance rate at the invitation was 43.1%. In the group of 27 invited or previously tested patients with EOC diagnosed before the age of 45 years, five gBRCA1/2 mutations were found. The gBRCA1/2m detection rate within the group was 18.5%. There were 4 gBRCA1 and 1 gBRCA2 mutations detected. In the extended group of 42 tested patients with EOC diagnosed before the age of 50 years, 14 gBRCA1/2 mutations were found. The gBRCA1/2m detection rate within this extended, partially selected group was 33.3%. There were 11 gBRCA1 and 3 gBRCA2 mutations detected.

Conclusions
The rate of gBRCA1/2 mutation in tested unselected EOC patients under the age of 50 years was higher than 10%, namely 18.5%. Considering also a direct therapeuthic benefit of PARP inhibitors for BRCA positive patients, there is a double reason to offer genetic testing to all EOC patients younger than 50 years. Regarding clinical data, it is important to perform their re-interpretation in everyday clinical practice, because this may influence therapeutic possibilities to be offered.
Serological Tests for Acquired Syphilis in Immuno-competent Patients
Authors: Golušin Zoran , Jovanović Marina , Matić Milan , Vujanović Ljuba , Roš Tatjana , Jeremić Biljana 
Published: March 2017

Abstract
Serological tests represent a valuable tool for the diagnosis and monitoring the syphilis treatment. Non-treponemal antibodies are nonspecific to detect the infection, but antibody titers are used to monitor the effects of syphilis treatment. A definitive diagnosis of syphilis is made using treponemal tests, because they detect specific antibodies to the treponemal strains or treponemal fragments, which cause syphilis. These tests may remain reactive for years, sometimes for life, regardless of the therapy outcome. Even after successful treatment, approximately 85% of patients remain positive for treponemal antibodies for the rest of their lives. However, treponemal tests cannot differentiate past infections from a current infection. Therefore, we use a combination of specific and non-specific tests, the two most frequently used diagnostic algorithms. The traditional algorithm begins with a non-treponemal assay, and if it is positive, the treponemal test is done. A positive treponemal test indicates syphilis. The reverse serology algorithm detects early, primary, and treated syphilis that may be missed with traditional screening. However, non-treponemal test is necessary to detect patients with active syphilis.
Berardinelli-Seip Syndrome - A Case Report
Authors: Kazandjieva Jana , Guleva Dimitrina , Márina Sonya , Nikolova Assya , Mladenova Gergana , Kurtev Alexander 
Published: March 2017

Abstract
Congenital generalized lipodystrophy (CGL), also known as Berardinelli-Seip syndrome (BSS), is a rare autosomal recessive disease characterized by near total absence of adipose tissue and muscular hypertrophy. Additional common clinical signs are acanthosis nigricans, acromegaloid features, hepatomegaly, hyperandrogenism, altered glucose intolerance, cardiomyopathy and hypertriglyceridemia. An 11-year-old girl was admitted to our Clinic presenting with hyperandrogenic features, generalized lack of adipose tissue, generalized muscular hypertrophy and brownish colored skin on the neck, axillas and inguinal folds associated with impaired glucose tolerance and hypertension. A clinical diagnosis of congenital generalized lipodystrophy was made.
Associated Fauna to Eichhornia crassipes in a Constructed Wetland for Aquaculture Effluent Treatment
Authors: Sipaúba-Tavares Lúcia Helena , Scardoelli Truzzi Bruno , Milstein Ana , Marcari Marques Aline 
Published: March 2017

Abstract
Water, sediment and associated fauna were studied in a water hyacinth (Eichhornia crassipes) stand of a constructed wetland, used for aquaculture effluent treatment in SE Brazil, in February-April (summer/rainy season) and July-September (winter/dry season). The hydrological regime and decomposition processes had strong impact on the wetland water quality and on the associated fauna composition. Protozoa and Rotifera were at high densities, mainly in the dry season. Vorticella sp. was the dominant species in both seasons. Zooplankton richness, evenness and diversity were high during both seasons, with higher levels during the rainy season. Protozoa diversity and evenness were higher in the dry season when the water volume was lower. Maximum plant residence time in this wetland should be about 60 days.
Present Status of Intertidal Biodiversity in and around Mumbai (West Coast of India)
Authors: Balasaheb Kulkarni , Atul Babar , Ashok Jaiswar , Rahul Kolekar 
Published: March 2017

AbstractDuring the present investigation, Girgaon, Marine Drive, Haji Ali and Gorai Creek in Mumbai were selected for biodiversity assessment following a protocol for natural geography in shore areas. Fifty nine macrobenthic molluscs, arthropods, coelenterates and echinoderms at these sites were recorded. The maximum density of gastropods and clams was observed at Marine Drive shore. At Gorai Creek, there were plentifulTelescopium telescopium,Potamidus cingulatis, mudskipper and fiddler crabs. Studies shows that the biodiversity status of the selected sites varies with respect to location, type of substratum and season. Pollution was observed to have a noticeable effect on clams at Girgaon coast, where manyPaphia textileshells were observed to be filled with mud and coated with black colour.
Decoding Information for Grasping from the Macaque Dorsomedial Visual Stream
Authors: Filippini Matteo , Breveglieri Rossella , Akhras M. Ali , Bosco Annalisa , Chinellato Eris , Fattori Patrizia 
Published: March 2017

Neurodecoders have been developed by researchers mostly to control neuroprosthetic devices, but also to shed new light on neural functions. In this study, we show that signals representing grip configurations can be reliably decoded from neural data acquired from area V6A of the monkey medial posterior parietal cortex. TwoMacaca fascicularismonkeys were trained to perform an instructed-delay reach-to-grasp task in the dark and in the light toward objects of different shapes. Population neural activity was extracted at various time intervals on vision of the objects, the delay before movement, and grasp execution. This activity was used to train and validate a Bayes classifier used for decoding objects and grip types. Recognition rates were well over chance level for all the epochs analyzed in this study. Furthermore, we detected slightly different decoding accuracies, depending on the task's visual condition. Generalization analysis was performed by training and testing the system during different time intervals. This analysis demonstrated that a change of code occurred during the course of the task. Our classifier was able to discriminate grasp types fairly well in advance with respect to grasping onset. This feature might be important when the timing is critical to send signals to external devices before the movement start. Our results suggest that the neural signals from the dorsomedial visual pathway can be a good substrate to feed neural prostheses for prehensile actions.SIGNIFICANCE STATEMENTRecordings of neural activity from nonhuman primate frontal and parietal cortex have led to the development of methods of decoding movement information to restore coordinated arm actions in paralyzed human beings. Our results show that the signals measured from the monkey medial posterior parietal cortex are valid for correctly decoding information relevant for grasping. Together with previous studies on decoding reach trajectories from the medial posterior parietal cortex, this highlights the medial parietal cortex as a target site for transforming neural activity into control signals to command prostheses to allow human patients to dexterously perform grasping actions.
miR‐31 mutants reveal continuous glial homeostasis in the adult Drosophila brain
Authors: Foo Lynette Caizhen , Song Shilin , Cohen Stephen Michael 
Published: March 2017

AbstractThe study of adult neural cell production has concentrated on neurogenesis. The mechanisms controlling adult gliogenesis are still poorly understood. Here, we provide evidence for a homeostatic process that maintains the population of glial cells in the Drosophila adult brain. Flies lacking microRNA miR‐31a start adult life with a normal complement of glia, but transiently lose glia due to apoptosis. miR‐31a expression identifies a subset of predominantly gliogenic adult neural progenitor cells. Failure to limit expression of the predicted E3 ubiquitin ligase, Rchy1, in these cells results in glial loss. After an initial decline in young adults, glial numbers recovered due to compensatory overproduction of new glia by adult progenitor cells, indicating an unexpected plasticity of the Drosophila nervous system. Experimentally induced ablation of glia was also followed by recovery of glia over time. These studies provide evidence for a homeostatic mechanism that maintains the number of glia in the adult fly brain.
And Akt‐ion! IQGAP1 in control of signaling pathways
Authors: Choi Suyong , Anderson Richard A 
Published: March 2017

ERK signaling and Akt signaling are inversely correlated in some cancers. Yet, the precise molecular mechanism for cross‐inhibition remains unclear. In this issue of The EMBO Journal, Pan et al () show that when Akt is on, its phosphorylated cytoplasmic substrate FOXO1 turns off ERK activity by reshaping the Ras‐ERK scaffold IQGAP1.
Mechanism for microbial population collapse in a fluctuating resource environment
Authors: Turkarslan Serdar , Raman Arjun V , Thompson Anne W , Arens Christina E , Gillespie Mark A , von Netzer Frederick , Hillesland Kristina L , Stolyar Sergey , López García de Lomana Adrian , Reiss David J , Gorman‐Lewis Drew , Zane Grant M , Ranish Jeffrey A , Wall Judy D , Stahl David A , Baliga Nitin S 
Published: March 2017

AbstractManaging trade‐offs through gene regulation is believed to confer resilience to a microbial community in a fluctuating resource environment. To investigate this hypothesis, we imposed a fluctuating environment that required the sulfate‐reducer Desulfovibrio vulgaris to undergo repeated ecologically relevant shifts between retaining metabolic independence (active capacity for sulfate respiration) and becoming metabolically specialized to a mutualistic association with the hydrogen‐consuming Methanococcus maripaludis. Strikingly, the microbial community became progressively less proficient at restoring the environmentally relevant physiological state after each perturbation and most cultures collapsed within 3–7 shifts. Counterintuitively, the collapse phenomenon was prevented by a single regulatory mutation. We have characterized the mechanism for collapse by conducting RNA‐seq analysis, proteomics, microcalorimetry, and single‐cell transcriptome analysis. We demonstrate that the collapse was caused by conditional gene regulation, which drove precipitous decline in intracellular abundance of essential transcripts and proteins, imposing greater energetic burden of regulation to restore function in a fluctuating environment.
The model of direct relative orientation with seven constraints for geological landslides measurement and 3D reconstruction
Authors: Chen Yifu , Xie Zhong , Qiu Zhenge , Zhang Min , Zhong Saishang 
Published: March 2017

With the development of computer vision and high-precision 3D model reconstruction, used for the measurement and 3D reconstruction of the geological landslides, acquiring a high-precision relative orientation basing multiple images is crucial and the key point to ensuring and improving the accuracy of 3D model and space position. Currently, the conventional relative orientation model includes five independent parameters. For the linear relative orientation model, there are nine parameters to construct the linear space geometric relationship between the imaging and space point. To eliminate the impact of more parameterization and improve the accuracy and stability of solved parameters for the conventional direct relative orientation model, a new relative orientation model with seven constraints is proposed and validated in this paper. The additional constraints are derived from the orthogonal property of the rotation matrix of a stereo imaging pair and associated with the least squares adjustment to obtain a high-precision result of the relative orientation. Through the accuracy assessment using space position, it is revealed that the new proposed model is more advantage for the conventional type of direct relative orientation, especially at 3D model reconstruction and close range photogrammetric and applications for the geological landslides measurement. El modelo de orientación relativa directa con siete restricciones para la medida de deslizamientos de tierra y reconstrucción tridimensional ResumenCon el desarrollo del entorno computacional y la alta precisión del modelo de reconstrucción tridimensional, utilizados para la medida y reconstrucción de desprendimientos geológicos, es crucial la obtención de la orientación relativa de alta precisión basada en imágenes múltiples y es el punto clave para asegurar y mejorar la exactitud del modelo 3D y la posición espacial. Actualmente el modelo de orientación relativa incluye cinco parámetros independientes. En el modelo linear de orientación relativa hay nueve parámetros para construir la relación geométrica espacial linear entre el sondeo y la posición espacial. Para eliminar el impacto de más parametrización y mejorar la exactitud y la estabilidad de los parámetros resueltos el modelo de orientación relativa convencional, este artículo propone y valida un nuevo modelo de orientación relativa con siete restricciones. Las restricciones adicionales se derivan de la propiedad ortogonal de la matriz de rotación de la imagen estéreo y se asocian con el ajuste de los cuadrados mínimos para obtener un resultado de alta precisión de la orientación relativa. Al medir la exactitud con la posición espacial se revela que el nuevo modelo propuesto tiene más ventajas que aquel de orientación relativa directa, especialmente en el modelo de reconstrucción 3D y en las aplicaciones fotográmetricas de rango cercano para la evaluación de desprendimientos geológicos.