bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation of hexagonal micro-sized α-Al2O3 platelets from a milled Al(OH)3 precursor with NH4F and NH4Cl additives
Authors: Liu Luoqiang , Zhang Xing , Zhu Lingling , Wei Yazhu , Guo Chao , Li Hongxia 
Published: July 2019

Abstract
Hexagonal α-Al2O3 platelets with about 1-μm diameter and 0.2-μm thickness are prepared by the calcination of a milled Al(OH)3 precursor with NH4F and NH4Cl additives. The influences of the ball milling treatment and the composite additive on the microstructure of α-Al2O3 micro-powders are studied. The results indicate that the particle size distribution of α-Al2O3 is highly dependent on the aggregate size of the Al(OH)3 precursor and that the morphology of α-Al2O3 can be significantly favored by the addition of 5 wt.% NH4F and 5 wt.% NH4Cl as additives. The growth velocity of the (0001) plane is significantly reduced because of the accelerated growth rate of other crystal faces caused by the increase of gas phase mass transfer. The combined effect of composite additives and precursor ball milling treatment leads to the generation of well-developed α-Al2O3 platelets with uniform size distribution.
Effect of Cement Content on Cracking Resistance of Full-Depth Reclamation Materials Using the Semicircular Bending Test
Authors: Ferjani Amel , Carter Alan , Vaillancourt Michel , Dardeau Adrien , Gandi Apparao 
Published: July 2019

Abstract
Full-depth reclamation (FDR) materials are a type of cold-recycled bituminous mixes that are composed of reclaimed asphalt pavement (RAP) and virgin aggregates. FDR is often treated with a binder in order to obtain cohesion. It is common to use bitumen emulsion, foam asphalt, and cement. In many parts of the world, when bitumen emulsion or foamed asphalt is used, cement is added as a cobinder to accelerate the curing process and cement hydration produces calcium silicate hydrate that may contribute to mechanical and durability properties. However, because cement creates fragile bonds, too much cement could be problematic for FDR. The objective of this study is to evaluate the effect of the cement proportion on fracture resistance of the FDR materials containing 50 % RAP and 50 % aggregate. Five proportions of the cement were added to the mixtures: 1, 2, 3, 4, and 5 %. Semicircular bending (SCB) tests were used to evaluate the cracking resistance of the mixture using the strain energy release rate (Jc). A total of 120 semicircular specimens were tested at intermediate temperatures, where 60 specimens were tested in wet condition to investigate the moisture sensitivity. The flexibility index (FI) and the cracking resistance index (CRI) were used to analyze the flexibility and brittleness of the mixtures. Results have shown that the FDR mixtures are more resistant to cracking as the cement content increases. The FI values, ranging between 1.32 and 4.74, revealed that a high percentage of added cement (4 and 5 %) contributes to making the samples behave like brittle mixtures. The CRI results showed a similar trend as the FI results.
Complex Modulus Testing and Rheological Modeling of Cold-Recycled Mixtures
Authors: Graziani Andrea , Mignini Chiara , Bocci Edoardo , Bocci Maurizio 
Published: July 2019

Abstract
This research compares the rheological behavior of different cold-recycled mixtures (CRMs) produced in-place through full-depth reclamation. Reclaimed asphalt pavement (RAP) obtained from the milling of the old asphalt layers was blended with reclaimed unbound aggregate from the existing subgrade. Asphalt emulsion, foamed asphalt, and portland cement were employed as stabilizing agents. The complex modulus was measured on cylindrical cores, applying a sinusoidal strain with an amplitude of 30 microstrain at testing temperatures ranging from 0°C to 50°C and frequencies ranging from 0.1 to 20 Hz. The Huet-Sayegh (HS) rheological model was applied to simulate the experimental data. The results showed that the behavior of CRM is thermo- and frequency-dependent and that the time-temperature superposition principle can be applied. The HS model provides an excellent fitting of the dynamic modulus data, whereas fitting of the loss angle data was improved, introducing a temperature- and frequency-independent correction. The RAP influences the rheological behavior, but viscous dissipation is mainly due to the asphalt-stabilizing agents (emulsion residue or foamed asphalt).
VIRTUDE, DEVER, MATÉRIA E FORMA
Authors: Martins Cléia Aparecida 
Published: July 2019

Este texto analisa dois conceitos especificos da ética kantiana, a saber, virtude edever. No decorrer desta análise procura-se demonstrar que a matéria da virtude é o dever e que o formalismo Kkantiano não implica uma indiferença para com a realidade do mundo empírico. Para tanto, é abordada a abrangência da ética de Kant basicamente nas três obras principais de sua filosofia prática, isto é, na Fundamentação da Metafísica dos Costumes, na Crítica da Razão Prática e na Metafísica dos Costumes.
Ecology, Cultivation and Utilization of the Aromatic Greek Oregano (Origanum vulgare L.): A Review
Authors: SKOUFOGIANNI Elpiniki , SOLOMOU Alexandra D. , DANALATOS Nicholaos G. 
Published: July 2019

Medicinal and aromatic plants represent a stable part of the natural biodiversity legacy of many countries in the world. The present review focuses on oregano (Origanum vulgare L.; family Lamiaceae), an endemic herb in Greece that constitutes one of the best known aromatic and medicinal plants originating in the Mediterranean region. In particular, oregano is an evergreen, rich in natural compounds perennial plant that received increased attention in the last years for a wide range of uses. Oregano dry leaves and inflorescences in mixture are used as human and animal food that is extremely rich in antioxidative properties. Additionally, its essential oil is rich in carvacrol, thymol, c-terpinene and p-cymene, and is used for a number of medicinal purposes, e.g. for inhibiting microbial and fungal toxin production as well as for the well-known anti-inflammatory, analgesic, antiarthritic, antiallergic, anticarcinogenic, antidiabetic, cardioprotective, gastroprotective, hepatoprotective, and neuroprotective properties. Due to its perfect quality and high essential oil concentration, Greek oregano (O. vulgare ssp. hirtum) is regarded among the best in the world gaining in popularity in the global markets for food industry applications. Consequently, oregano might be considered as an important low-input, environmental friendly commodity for extensive cultivation in Greece. The present review summarizes on the origin, the morphology, the ecology and the utilization of this plant. Despite the extensive literature available on the use of oregano biomass and essential oil, only few reports exist concerning the cultivation of this plant. Therefore, the present review is additionally focused on the cultivation practices and the importance of cultivation and utilization of Origanum vulgare L. in Greece and generally in the Mediterranean region in the near future, as it constitutes a plant species with high medical, economic and environmental value.

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In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue.
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Interactive Effects of Plant Growth-Promoting Rhizobacteria and Phosphates Sources on Growth and Phosphorus Nutrition of Soybean under Moderate Drought
Authors: ROTARU Vladimir Ion , RISNOVEANU Luxita 
Published: July 2019

The growth of legume plants is usually improved by the rhizobacteria inoculation under low phosphorus (P) and alleviation of P nutrition plays important role in plant drought stress response. The aim of this study was to assess the comparative efficacy of two plant growth promoting rhizobacteria namely Burkholderia cepacia B36 and Enterobacter radicincitans D5/23T combined with two sources of phosphates in soybean (Glycine max L.) under low water supply. Plants were grown under P soluble versus insoluble P fertilization for comparing the effects of soybean inoculation on growth, uptake and use efficiency of phosphorus under moderate drought stress. At the beginning of flowering, half of plants was subjected to low water supply (35% water holding capacity, WHC) for 12 days while control plants were well watered - 70% WHC. The plants were harvested at the end of drought and physiological traits and P contents were analyzed. The inoculation treatments showed better plant growth and nutrient uptake when compared to uninoculated control. The application of the Burkholderia cepacia was more efficiently in terms plant growth than E. radicincitans especially under insoluble phosphates. Phosphorus concentrations of shoots and roots increased with both bacterial strains. The bacterial inoculation has much better stimulatory effect on nutrient uptake by soybean fertilized with insoluble phosphates. Study findings indicate that the combined application of PGPR (Burkholderia cepacia B36) and P amendments has the potential to improve P nutrition and growth of soybean cultivated on P-deficient soil under well-watered as well as moderate drought condition.

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In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue.
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Antioxidant Properties and Anti-inflammatory Effects of the Hydroethanolic Extracts of Two Varieties of Bayberry fruit (Myrica rubra Sieb et Zucc.) Prepared by Stirring and Ultrasonic Methods
Authors: LIN Kuan-Hung , LU Chun-Ping , CHAO Jia-Wei , YU Yi-Ping 
Published: July 2019

Chinese bayberry (Myrica rubra Sieb. et Zucc.) is an economically important medicinal plant with multiple uses. Two varieties ‘Dongkui Oriental Pearl’ (Dongkui for short) and acuminata ‘Nakai’ (Nakai for short) were used to compare and evaluate the antioxidant activities of hydroethanolic extracts of the fruit using ultrasonic and stirring extraction methods. Dongkui bayberry fruit extract (BFE) prepared using the ultrasonic method exhibited a significantly higher value for the total phenolic content (TPC) and had lower 50% inhibitory concentration (IC50) values of scavenging activities against 1,1-diphenyl-2- picrylhydrazyl (DPPH), 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid (ABTS), and hydrogen peroxide (H2O2), as well as reducing power compared to the other treatment. The TPC of the BFE was significantly correlated with its DPPH, ABTS, and H2O2 radical-scavenging and reducing power activities. Dongkui BFE at a concentration of 0.25 mg/mL exhibited significantly greater protection of RAW 264.7 mouse macrophages against H2O2-induced damage and lipopolysaccharide (LPS)-stimulated nitric oxide production by macrophages, and it displayed remarkable inhibitory effects compared to the other extracts using the ultrasonic extraction method. Furthermore, compared to the Nakai BFE, macrophages exposed to the Dongkui BFE by the ultrasonic extraction method significantly inhibited LPS-induced production of tumor necrosis factor-α at a concentration of the extract of 0.25 mg/mL. The antioxidant properties and anti-inflammatory and protective effects of BFE prepared by stirring and ultrasonic methods are discussed for the first time in this study.

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In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue.
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Tyrosinase Inhibitory and Antioxidant Activity of Wild Prunus spinosa L. Fruit Extracts as Natural Source of Bioactive Compounds
Authors: STANKOVIĆ Milica I. , SAVIĆ Vesna Lj. , ŽIVKOVIĆ Jelena V. , TADIĆ Vanja M. , ARSIĆ Ivana A. 
Published: July 2019

In recent years, naturally derived tyrosinase inhibitors and antioxidants have become very important, since the synthetic ones are related with several side effects. As wild fruits are rich source of bioactive compounds, this study focused on the examination of Prunus spinosa L. (blackthorn) fruit extracts, widely distributed in our country. However, blackthorn extracts are not enough investigated, and there are only a few published works. Extraction efficiency of P. spinosa ultrasonic fruit extracts obtained by using different solvents (methanol, 70% (v/v) ethanol, 45% (w/w) propylene glycol and water) was evaluated, regarding polyphenolic profile, tyrosinase inhibitory and antioxidant activity. Results suggested that extracts with 45% propylene glycol and water were particularly rich in polyphenolic compounds (especially phenols, flavonoids and anthocyanins). The highest extraction yield was for 45% propylene glycol extract. This extract showed higher tyrosinase inhibitory and antioxidant activity compared to others, while the methanolic extracts had the highest chelating capacity. Therefore, P. spinosa fruit extracts, especially extracts obtained by ultrasonic extraction with 45% propylene glycol, have a great potential to be incorporated in some pharmaceutical formulations for obtaining tyrosinase inhibitory and antioxidant effects.

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In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue.
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A New Measurement Model to Estimate the Intensity of Acrotony on the Latent Buds of Grapevine Canes (Vitis vinifera L.)
Authors: DASKALAKIS Ioannis , BINIARI Katerina 
Published: July 2019

In warm regions, such as in southern Greece, the climate change can lead to prolonged dormancy as well as to problems in bud dormancy (delay in breaking time, reduce the rate of budbreak, intensity of the phenomenon of acrotony, grapevine bud fall, disorders in bloom with intense blossom dropping, etc.), with a significant impact on the production of the vines. In these areas, it is necessary to apply chemical substances in order to break the dormancy and advance budbreak, especially when it comes to new table grape varieties, most of which are seedless. Another phenomenon which is observed on grapevines and is directly associated with budbreak is acrotony, where the apical buds of the cane break first compared to the middle and basal ones. Acrotony can constitute a problem because it can cause irregular grape ripening, different timing of various activities in the vineyard, which brings about higher cultivation costs. In this research, a new method to measure and evaluate the acrotony and its intensity on the latent buds of grapevine canes was described. The results of two chemical substances applied on table grape variety ‘Prime’ in order to advance budbreak were presented.

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In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue.
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Growth, Physiological and Biochemical Responses of two Greek Cotton Cultivars to Salt Stress and their Impact as Selection Indices for Salt Tolerance
Authors: MOUSSOURAKI Maria-Anna , TANI Eleni , VELLIOU Anna , GOUFA Maria , PSYCHOGIOU Maria , PAPADAKIS Ioannis E. , ABRAHAM Eleni M. 
Published: July 2019

Soil salinity is a major constrain of crop productivity. Upland cotton (Gossypium hirsutum L.) is an important fiber crop worldwide and a major agricultural product in Greece. Two commercial cotton cultivars (‘Hersi’ and ‘ST 318’) were studied to compare their response under non-saline and saline conditions in a greenhouse experiment. Salt stress on plants was imposed by two different approaches: a gradual and an initial acclimatization to a non-lethal NaCl concentration (150 mM). To explore salt stress responses, growth (height of plants, roots, shoots and leaves dry weight, reproductive shoots, Salinity Sensitivity Index), gas exchange (Photosynthetic rate, Stomatal conductance, Transpiration rate and Water Use Efficiency) and biochemical parameters (proline, H2O2 and MDA content), were examined as well as ion homeostasis. ‘Hersi’ had significantly higher dry weight of roots, shoots and leaves, lower salinity sensitivity index of roots compared to ‘ST 318’. In this regard, it appears that ‘Hersi’ cultivar performed better than ‘ST 318’ to increased salinity conditions, due to better control of gas exchange parameters and K+/Na+ homeostasis as well as better membrane integrity. Furthermore, the gradual acclimatization to the 150 mM NaCl concentration had a milder effect on both cultivars compared to the initial acclimatization.

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In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue.
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Efficient Approaches to in vitro Multiplication of Lilium candidum L. with Consistent and Safe Access throughout Year and Acclimatization of Plant under Hot-Summer Mediterranean (Csa Type) Climate
Authors: DANESHVAR ROYANDAZAGH Sheida 
Published: July 2019

Lilium candidum L. is one of the most fragrant plant species among Liliaceae. The indigenous and natural populations of L. candidum are significantly affected by fast increasing anthropological population pressure and increased carbon fuel pollution. There is a necessity for development of a micropropagation protocol to serve in effective manner for both commercial multiplication and protection of the plant. The study targeted to develop a strategy for effective in vitro plant propagation system using static liquid culture, seismomorphogenic treatments with mixed liquid culture and semi solid culture medium using single scale explants. The former two techniques failed to regenerate new bulblets effectively whereby the later technique induced 100% regeneration on all treatments. Maximum number of bulblets regenerated on 0.27 µM Thidiazuron + 1.08 µM Naphthalene acetic acid. The scale explant could be recultured and regenerated on the mother culture medium for six cycles. The daughter bulblets regenerated on Murashige and Skoog medium containing both 0.18 or 0.27 µM TDZ + 1.08 µM NAA were successfully rooted using 1/2 × MS medium containing 2.45 µM indole butyric acid. Regardless of rooting development, acclimatization was noted on all bulblets in the greenhouse. These plants are showing continuous flowering since last four years under hot-summer Mediterranean (CSa type) climate field conditions of Tekirdag province of Thrace region in Turkey.

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In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue.
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Physicochemical Quality, Antioxidant Capacity and Nutritional Value in Tuberous Roots of Some Wild Dahlia Species
Authors: RIVERA-ESPEJEL Esteban A. , CRUZ-ALVAREZ Oscar , MEJÍA-MUÑOZ José M. , GARCÍA-MATEOS María R. , COLINAS-LEÓN María T.B. , MARTÍNEZ-DAMIÁN María Teresa 
Published: July 2019

The aim of this research was to evaluate the physicochemical quality, antioxidant capacity and nutritional value in tuberous roots of some wild dahlia species. The experiment was carried out in the Department of Plant Science of the Autonomous University Chapingo, Mexico. Plants were established in a randomized complete block design with five replications. The total soluble solids (TSS), titratable acidity (TA), vitamin C (VC), total phenols (TP), antioxidant capacity (AC), inulin and its proximate composition were evaluated. Among the materials analyzed, the most outstanding wild species were Dahlia campanulata, D. coccinea and D. brevis, where D. campanulata stood out for its concentration of VC (0.05 mg 100 g-1), AC (1.88 mg VCEAC g-1), inulin, DM and TC (72.25, 24.38 and 88.37%, respectively), however, the inulin content was similar to D. coccinea (66.17%), which was also outstanding with respect to the content of TP (1.74 mg GA g-1). Likewise, D. brevis presented the highest values of RFi (5.49%) and A (78.42%). According to our results, the tuberous roots of wild dahlia species can be used as food, as well as being a source of selection of traits of nutraceutic interest for genetic improvement.

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In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue.
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Biochemical Changes under Chromium Stress on Germinating Seedlings of <i>Vigna radiata</i>
Authors: SUTHAR Bhavin , PANSURIYA Jayesh , KHER Mafatlal M , PATEL Dr. Vinay R , NATARAJ Murugan 
Published: July 2019

Hexavalant chromium is considered the most toxic form because of its high solubility in water. Cr is known to induce
production of elevated concentration of reactive oxygen species (ROS) resulted in macromolecule damage. Plants are having unique mechanisms to overcome ROS induced damage by accumulation of proline, ascorbate and glutathione and increasing the activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), and ascorbate peroxidaes (APX), peroxidise (POX). In the present investigation effects of chromium on seed germination of Mung bean (Vigna radiata 'Gujarat Mung-4’) were studied. Seeds were treated with different Cr concentrations (50, 100, 150 and 200 4M) for
seven days. On 7th day root and shoot length was measured and activities of antioxidant enzyme SOD, APX, POX, CAT and GR were checked along with protein, proline and lipid peroxidation. It was observed that there is gradual decrease in shoot and root length with respect to the increase in Cr concentration. Level of lipid peroxidation significantly increased along with proline and antioxidant enzyme activity at higher Cr concentration. Lipid peroxidation is an indication of membrane damage due to elevated production of reactive oxygen species (ROS). To combat oxidative damage by ROS antioxidant enzyme activity increased significantly, which indicates that antioxidant enzymes (SOD, CAT, APX and GR) play a crucial role during Cr stress during germination of V. radiata.