Miracle-dz/UniFAR-FTUs huggingface dataset:
Energy Effic ient Reconfi gurable MAC Protocol for Underwater Acoustic Sensor Network

In a multi-hop Underwater Acoustic Sensor Network (UWASN) the challenges of the medium access control (MAC) are different than that of single hop fully connected network. Existing MAC solutions try to solve the challenges of MAC control by channel reservation or contention elimination techniques. These techniques heavily depend on the transmissions of control packets that result in large overhead specially in terms of energy consumptions. In this thesis, a multi-hop enabled energy efficient MAC protocol for UWASN is proposed by exploiting a novel 2-phase contention resolution technique that minimizes the usage of control packets by utilizing short duration tones. A probabilistic model of the proposed protocol is also developed to analyze the performance of the protocol analytically. A network simulation framework has been designed to simulate MAC and a physical layer for UWASN. The proposed MAC protocol has been evaluated through quantitative analysis and simulation. By evaluating this proposed protocol through quantitative analysis and simulation, this research found that the proposed protocol outperforms in terms of energy efficiency, channel utilization and end-to-end delay. The proposed protocol achieves stable throughput and a maximum 30% of theoretical maximum channel utilization in high traffic load in comparison to the existing protocol that becomes unstable and does not perform well. Additionally, the proposed protocol achieves better energy efficiency and lower end-to-end delay.
Perceived Supervisor Support (PSS), Affective Commitment, and Organizational Citizenship Behavior (OCB): Study in Indonesian Context

The purpose of the research is to examine the correlation between perceived supervisor support (PSS), affective commitment, and organizational citizenship behavior (OCB) in the Indonesian context. Since many concepts of knowledge come from western culture, which may not be applicable in specific different cultures, this research emphasizes in the additional support of empirical evidence in the Indonesian context, especially related with the concept of OCB which is relatively similar with one of the Indonesian working culture called “gotong royong” in general content. The samples of the research are 108 employees in 4 and 5 starred hotel in Surabaya. The result of this research is inconclusive, as PSS is correlated significantly with OCB; however, PSS is correlated insignificantly with affective commitment, while affective commitment is correlated insignificantly with OCB
Low-level jet characteristics over the Arctic Ocean in spring and summer

Abstract. Low-level jets (LLJ) are important for turbulence in the stably stratified atmospheric boundary layer, but their occurrence, properties, and generation mechanisms in the Arctic are not well known. We analysed LLJs over the central Arctic Ocean in spring and summer 2007 on the basis of data collected in the drifting ice station Tara. Instead of traditional radiosonde soundings, data from tethersonde soundings with a high vertical resolution were used. The Tara results showed a lower occurrence of LLJs (46 ± 8%) than many previous studies over polar sea ice. Strong jet core winds contributed to growth of the turbulent layer. Complex relationships between the jet core height and the temperature inversion top height were detected: substantial correlation (r = 0.72; p
Probiotic effects on cobia Rachycentron canadum larvae reared in a recirculating aquaculture system

Cobia (Rachycentron canadum) is a marine finfish with good potential for mariculture. This study analyzes the effects of probiotic Bacillus spp. on the performance of cobia larvae reared in a recirculating aquaculture system (RAS). Larvae were stocked into two independent RAS for 26 days after hatching. One of the systems (Probiotic treatment) received the addition of a commercial probiotic consisting of B. subtilis, B. licheniformis and B. pumilus directly into the water and by live feed. Survival, final weight and water quality were not affected by probiotics. Results showed larvae of the probiotic treatment demonstrated a greater resistance to salinity stress. Immunohistochemical analysis showed a higher expression of CD4 in probiotic treatment. These results suggest that Bacillus spp. probiotics used in RAS have a potential stimulating impact on immune system differentiation and increases salinity stress resistance of cobia larvae.
CATCHES: fisher responses to tsunami relief efforts in South India

To the surprise of both governments and NGOs, village-level caste organisations ‐ or panchayats - played a significant role in the post-tsunami relief effort to fishermen in Tamil Nadu, India. This paper discusses the pro-active role of caste panchayats in relief from the perspective of social resilience, a factor that is frequently argued to be of importance for disaster management. It presents panchayat action as an expression of collective agency that has a long tradition in the fishing villages of the region. Finally, comparing the reactions of caste panchayats in the post-tsunami situation with their performance in other instances of collective need, it considers their future role in fields such as fisheries management.
Implications for the origin of short gamma-ray bursts from their observed positions around their host galaxies

We present the observed offsets of short-duration gamma-ray bursts (SGRBs) from their putative host galaxies and compare them with the expected distributions of merging compact object binaries, given the observed properties of the hosts. We find that for all but one burst in our sample the offsets are consistent with this model. For the case of bursts with massive elliptical host galaxies, the circular velocities of the hosts' haloes exceed the natal velocities of almost all our compact object binaries. Hence, the extents of the predicted offset distributions for elliptical galaxies are determined largely by their spatial extents. In contrast, for spiral hosts, the galactic rotation velocities are smaller than typical binary natal velocities and the predicted burst offset distributions are more extended than the galaxies. One SGRB, 060502B, apparently has a large radial offset that is inconsistent with an origin in a merging galactic compact binary. Although it is plausible that the host of GRB 060502B is misidentified, our results show that the large offset is compatible with a scenario where at least a few per cent of SGRBs are created by the merger of compact binaries that form dynamically in globular clusters.
How Do We Talk to the Public

Despite extensive research on crisis communication, companies still face troubles in correctly applying crisis communication strategies in practice. With a business transition where brands are ought to become more personal as well as make use of new media channels, communication managers must develop their strategy accordingly. To give guidance to these developments, the current study aimed to uncover useful handholds for communication managers who are concerned with creating crisis communication strategies. To lead this research, the main question was focused on what the effects of emotion, medium, and company sector used in crisis communication, are on the public response. The study followed an experimental research design, which was executed through a survey. A sample of 299 respondents gave useful insights concerning their preferences on company’s communication tactics in times of a crisis. The sample contained a nearly equal gender representation and largely consisted of young adults (19-29 years old) with a Dutch nationality and an education background of a Bachelor’s or Master’s degree. The outcome of the study revealed that the conditions of (emotional) message framing and industry are intertwined in their effect on secondary crisis communication and secondary crisis reaction: a company that falls within the hospitality industry (emotional-driven sector) benefits from an emotional approach, whereas a company that falls within the financial industry (rational-driven sector) benefits from a rational approach. Thus, we proclaim that a company’s industry is an important indicator for what type of message framing is desired in crisis communication. Also, results showed that the public prefers to be approached via an online newspaper rather than via Facebook in times of a crisis. However, as the latter was only an implication based on a weak result, this area could benefit from more extensive investigation. This study expands both on the situational crisis communication theory and social-mediated crisis communication model and gives practical handholds to communication managers predominantly by giving insights on the use of emotion in crisis communication.
E-book Reader and the Necessity of Divergence from the Legacy of Paper Book

The traditional paper-based book as we know it has been read and loved for hundreds of years. The first generation of e-book readers, based on electronic ink, attempted to emulate the traditional paper-based book, both in content and functionality. In this paper we discuss how the reading of e-books starts to diverge from the legacy of paper books. Many still favor the sensory experience of touching an actual book, smelling the paper, and hearing the sound of turning pages. However, huge memory, easy readability, the possibility of sharing text between users (such as Nook allows), the multi-functionality (such as iPad has) and the ease of downloading books, all make e-book readers increasingly popular. Based on insights gained from ethnographic studies, workshops, focus groups, and questionnaires, we discuss some advantages and disadvantages of e-book readers, speculate on how they may change the way we read, in particular actively, and propose some guidelines for future e-book reader functionality design specifically aimed at the student population. The first prototype resulting from co-design work with primary school students is presented as an example of our design approach. Keywordsdigital libraries; e-book readers; HCI; interface; co-design
BIOCONTROL OF PHASEOLUS VULGARIS ROOT ROT USING ARBUSCULAR MYCORRHIZAE

The arbuscular mycorrhizal fungi (AM fungi) as mixture of Glomus spp. was used to induce resistance in Phaseolus vulgaris against root rot disease caused by Rhizoctonia solani. Results showed that % disease incidence was significantly reduced in AMinoculated plants as compared with infected and AM-free control. Production of hydrogen peroxide (H2O2) and level of lipid peroxidation increased in both roots and shoots bean plants with increasing the time of infection. AM fungi markedly alleviated oxidative stress in infected bean plants, thus, levels of H2O2 and lipid peroxidation was markedly reduced. Also, activity of antioxidant enzymes (catalase, ascorbate peroxidase and superoxide dismutase) significantly increased in bean tissues in response to both R.solani and/or AM fungus. The highest enzyme activity was recorded in shoots of 14 days old plants inoculated with AM fungi. Total phenolic compounds and various phenolic acids especially cinnamic and ferulic acids greatly increased in roots of bean plants infected with R.solani and/or inoculated with AM fungi. However, coumarin was found only in AM-treated plants. But quercetin markedly increased in bean roots infected by R.solani and decreased in AM-treated plants, as compared with non-infected control. Finally, activity of lignification enzymes (polyphenol oxidase, peroxidase and phenylalanine-ammonia lyase) increased in all infected plants. Our results indicate that AM fungi increased resistance in infected bean plants by inducing both antioxidant system and phenolic compounds pathway.
A two state model for noise-induced resonance in bistable systems with delay

The subject of the present paper is a simplified model for a symmetric bistable system with memory or delay, the reference model, which in the presence of noise exhibits a phenomenon similar to what is known as stochastic resonance. The reference model is given by a one dimensional parametrized stochastic differential equation with point delay, basic properties whereof we check. With a view to capturing the effective dynamics and, in particular, the resonance-like behaviour of the reference model we construct a simplified or reduced model, the two state model, first in discrete time, then in the limit of discrete time tending to continuous time. The main advantage of the reduced model is that it enables us to explicitly calculate the distribution of residence times which in turn can be used to characterize the phenomenon of noise-induced resonance. Drawing on what has been proposed in the physics literature, we outline a heuristic method for establishing the link between the two state model and the reference model. The resonance characteristics developed for the reduced model can thus be applied to the original model.
Culturable vibrios biodiversity in the Northern Ionian Sea (Italian coasts)

SUMMARY: Vibrio spp. in the marine environment play an important role in biodegradation, nutrient regeneration and biogeochemical cycling. These microorganisms are normal residents in coastal waters and their numbers depend on environmental parameters. The qualitative and quantitative composition of culturable Vibrio spp. in water samples from the Northern Ionian Sea (Italy) was investigated. The study was carried out from December 1999 to November 2000 in 10 stations along the coast line between Castellaneta Marina and Santa Maria al Bagno. Seasonal distribution of culturable vibrios densities showed the highest values during the summer-autumn period. Furthermore, in all the examined sites vibrio abundance was higher at the stations nearest the shore. During the sampling period 387 Vibrio spp. strains were isolated. Vibrio mediterranei was the predominant species, V. nereis and V. harveyi also represented two consistent components of the isolated culturable vibrio community. V. alginolyticus and V. parahaemolyticus showed a mean isolation percentage of about 7%. Recovery of some vibrio species was correlated with temperature. Data provided in this study will improve our understanding of the distribution of Vibrio species in the Northern Ionian Sea.
Structural and Chemical Characterization of Silica Spheres before and after Modification by Silanization for Trypsin Immobilization

In the last decades, silica particles of a variety of sizes and shapes have been characterized and chemically modified for several applications, from chromatographic separation to dental supplies. The present study proposes the use of aminopropyl triethoxysilane (APTS) silanized silica particles to immobilize the proteolytic enzyme trypsin for the development of a bioreactor. The major advantage of the process is that it enables the polypeptides hydrolysis interruption simply by removing the silica particles from the reaction bottle. Silanized silica surfaces showed significant morphological changes at micro- and nanoscale level. Chemical characterization showed changes in elemental composition, chemical environment, and thermal degradation. Their application as supports for trypsin immobilization showed high immobilization efficiency at reduced immobilization times, combined with more acidic conditions. Indirect immobilization quantification by reversed-phase ultrafast high performance liquid chromatography proved to be a suitable approach due to its high linearity and sensitivity. Immobilized trypsin activities on nonmodified and silanized silica showed promising features (e.g., selective hydrolysis) for applications in proteins/peptides primary structure elucidation for proteomics. Silanized silica system produced some preferential targeting peptides, probably due to the hydrophobicity of the nanoenvironment conditioned by silanization.
Trace fossils from the Lower Muschelkalk of Raciborowice Górne (North Sudetic Synclinorium, SW Poland) and their palaeoenvironmental interpretation

The following trace fossils have been recognised in the Lower Muschelkalk of Raciborowice Gorne (North Sudetic Synclinorium, SW Poland): Archaeonassa fossulata , Balanoglossites triadicus , ? Gastrochaenolites isp. , Lockeia isp. , Palaeophycus tubularis , Palaeophycus isp. , ? Planolites beverleyensis , P. montanus , Planolites isp. , ? Protovirgularia isp. , Rhizocorallium commune var. auriforme , R. commune var. irregulare , R. jenense , Skolithos linearis , Thalassinoides suevicus and Trypanites weisei . Coprolites and an unidentified trace fossil A are also described. The trace fossils allow the discrimination of five ichnoassociations in the Raciborowice Gorne section: (IA 1) Rhizocorallium - Pholeus , (IA 2) Rhizocorallium-Palaeophycus , (IA 3) Thalassinoides , (IA 4) Trypanites-Balanoglossites and (IA 5) Planolites-Palaeophycus . The Lower Muschelkalk succession was deposited on a shallow carbonate ramp affected by frequent storms. Deposition commenced with sedimentation in a restricted lagoon on the inner ramp with a short episode of sabkha formation. It continued on the middle and outer ramp and then on a skeletal shoal of the outer ramp and in an open basin. Ichnoassociation IA 5 is related to a maximum transgression that commenced with the deposition of the Spiriferina Bed and which probably marked the opening of the Silesian-Moravian Gate. The basin underwent two shallowing episodes, as evidenced by ichnoassociations IA 3–IA 4, resulting in the formation of hardgrounds. Bathymetric changes in the Raciborowice Gorne section correspond well with a general transgressive trend in the Germanic Basin.
Reciprocal Diallel Crosses Impact Combining Ability, Variance Estimation, and Heterotic Group Classification

Questions such as the following often arise: "Should reciprocal crosses be included in a dial - lel? " and "Would their inclusion in a diallel impact grain yield (GY), estimates of general (GCA) and specific combining ability (SCA) effects, and heterotic group classification in maize ( Zea mays L.)? " We evaluated a 12-parent maize dial - lel cross (Griffing's Method 3 and Method 4) in three environments to determine (i) if recipro - cal crosses impact GY of crosses and GCA and SCA effects, (ii) if reciprocal crosses influence the GCA and SCA and residual variance esti - mates in a diallel analysis, and (iii) if reciprocal crosses impact maize heterotic group classifica - tion. The results showed that inclusion of recip - rocal crosses in a diallel greatly impacted GY and estimates of GCA and SCA effects. Under the assumption of a random-effects model, the inclusion of reciprocal crosses caused the resid - ual and GCA variances to decrease and the SCA variances to increase as the number of parental lines increased in a diallel cross. Because inclu - sion of reciprocal crosses impacted GY and SCA estimates, reciprocal crosses would have great impact on maize heterotic group classification. The maize heterotic groups might be classi - fied differently with and without the inclusion of reciprocal crosses. Based on our dataset from southwest China, three heterotic groups seemed to be an ideal number for improving maize- breeding efficiency.
PIECEWISE RELIABILITY-DEPENDENT HAZARD RATE FOR COMPOSITES UNDER FATIGUE LOADING ADJUSTMENT

Based on the derived transition period and reliability drop, this paper proposes a method of piecewise combination of the reliability-dependent hazard rate function named $ (e_ocp)$ model to describe the dynamical reliability in a two-stage fatigue loading process. First, the parameters $ e_o$, $c$, $p$ are fitted through simulated failure data under various constant-amplitude cyclic stresses. The reliability of the high-low loading process is described piecewise with the corresponding values of $ (e_o,c,p)$ for each respective stress level, and maintains $ R_a$ in the transition period while $ R_a$ denotes the reliability at which the stress level changes. The reliability of the low-high process is determined by subtracting the portion of reliability drop at $ R_a$ from the piecewise fitted curves. The proposed reliability behavior is verified successfully. The linear damage sum is found to be larger than unity for the high-low loading, and on the contrary for the low-high cases. A larger difference between the stress level changed results in larger deviation of damage sum from unity, especially when $ R_a$ near 0.9.
Promoting collaborative practice and reciprocity in initial teacher education: realising a ‘dialogic space’ through video capture analysis

This paper explores the potential of video capture to generate a collaborative space for teacher preparation; a space in which traditional hierarchies and boundaries between actors (student teacher, school mentor and university tutor) and knowledge (academic, professional and practical) are disrupted. The study, based in a teacher education department in an English university, is contextualised in the policy context of school–university partnerships. Video capture is used as a vehicle to promote dialogue and collaborative practice between partners during school-based elements of a teacher preparation course. Analysis highlights the power of this space to promote reciprocal learning across the partnership.
Vitamin D deficiency in chronic renal failure patients; current knowledge and new trends

Chronic kidney disease (CKD), or chronic renal failure at final stages requires hemodialysis treatment. One of complication of these patients on hemodialysis and even CKD is the deficiency of vitamin D. Inadequate exposure to sun rays and poor dietary containing vitamin D can lead to its deficiency. Vitamin D deficiency in these patients may lead to osteomalacia in adult and rickets in children. Appropriate levels of 25(OH)D and parathyroid hormone, can decrease complication of extra-renal disease and mortality in both hemodialysis and chronic kidney disease patients.
Sleep Apnea and Type 2 Diabetes: A Short Review of the Literature

Sleep Apnea and Type 2 Diabetes: A Short Review of the Literature The prevalence of diabetes and obesity has reached epidemic proportions. Even if today it is an accepted fact that diet and reduced physical activity are causes of obesity epidemic, sleep disturbances are seen as risk factors for obesity, insulin resistance, type 2 diabetes and metabolic syndrome. Regardless of the nature of the relation between sleep apnea and diabetes, the observed association have important clinical, epidemiological and public health implications. Clinical studies have shown that the cardiovascular morbidity and mortality is high, both in diabetes and sleep apnea, overcoming the prevalence observed in general population. Thus, understanding the implications of sleep apnea in alteration of glucose metabolism and cardiovascular risk could contribute to the prevention of both micro- and macrovascular complications.