Miracle-dz/UniFAR-FTUs huggingface dataset:
Aerial collective systems

Deployment of multiple flying robots has attracted the interest of several research groups in the recent times both because such a feat represents many interesting scientific challenges and because aerial collective systems have a huge potential in terms of applications. By working together, multiple robots can perform a given task quicker or more efficiently than a single system. Furthermore, multiple robots can share computing, sensing and communication payloads thus leading to lighter robots that could be safer than a larger system, easier to transport and even disposable in some cases. Deploying a fleet of unmanned aerial vehicles instead of a single aircraft allows rapid coverage of a relatively larger area or volume. Collaborating airborne agents can help each other by relaying communication or by providing navigation means to their neighbours. Flying in formation provides an effective way of decongesting the airspace. Aerial swarms also have an enormous artistic potential because they allow creating physical 3D structures that can dynamically change their shape over time. However, the challenges to actually build and control aerial swarms are numerous. First of all, a flying platform is often more complicated to engineer than a terrestrial robot because of the inherent weight constraints and the absence of mechanical link with any inertial frame that could provide mechanical stability and state reference. In the first section of this chapter, we therefore review this challenges and provide pointers to state-of-the-art methods to solve them. Then as soon as flying robots need to interact with each other, all sorts of problems arise such as wireless communication from and to rapidly moving objects and relative positioning. The aim of section 3 is therefore to review possible approaches to technically enable coordination among flying systems. Finally, section 4 tackles the challenge of designing individual controllers that enable a coherent behavior at the level of the swarm. This challenge is made even more difficult with flying robots because of their 3D nature and their motion constraints that are often related to the specific architectures of the underlying physical platforms. In this third section is complementary to the rest of this book as it focusses only on methods that have been designed for aerial collective systems.
Dental Students’ Motivation and their Perception of Profession’s Future in Saudi Arabia

The factors driving career choice are recognized as complicated, with dentistry just as complex. A number of different motives may be considered when making the decision as to career choice, such as financial rewards, occupational nature, working conditions, and security [3-5]. Furthermore, factors underpinning the choice of dentistry have been examined in a number of different developed regions, although only a few have been carried out in developing regions. A number of rationales have been presented for the choice of dentistry as future career in the literature. Schools of Dentistry based in the KSA provide dentistry courses spanning five years (excluding preparatory year and internship training), with the prospect of earning a Bachelor of Dental Surgery (BDS). Such studies provide students with the career preparation required by the modern dentistry world through bringing together clinical training and both basic and advanced dental sciences. This program is similar to many programs in the middle east [1,2]. Abstract
Influence of photoperiod on vegetation phases and tuber development in topinambour (Helianthus tuberosus L.)

A topinambour collection was analyzed to determine the genetic variability of 141 accessions in reaction to the length of day (light), its influence on vegetative and flowering phases, tuber number and mass. Day length significantly influenced flowering, which started with the first shorter days (15.6 h) in the third decade of June, while the majority of accessions flowered in the third decade of August (13.3 h). Differences between accessions were statistically significant for the analyzed phenotype traits. A significantly longer vegetative phase was found in Montenegrin accessions in comparison to the other groups of origin. Duration of the vegetative phase was significantly and positively correlated to tuber mass and negatively to their number, while duration of the reproductive phase had an opposite effect. for further work on topinam- bour breeding, it would be important to describe the mechanism of photoperiodic control of flowering initialization. Only by obtaining accessions neutral to the photoperiod could topinambour become a cultivated crop.
Effects of EDTA and DTPA on Lead and Zinc Accumulation of Ryegrass

The tailing ponds of lead-zinc mines are artificial environment pollution sources, and also important dangerous sources of heavy metal contamination in lead-zinc mining areas. To study the effects of Ethylene Diamine Tetracetic Acid (EDTA) and Diethylene Triamine Penlaacetic Acid (DTPA) on phytoremediation of lead-zinc mining area soil, two chelators (EDTA and DTPA) were used in enrichment plant ryegrass to improve the uptake of Pb and Zn from soil. The results showed that when the doses of 0, 0.5, 1 and 2 mmol/kg EDTA and DTPA were used, the biomass of ryegrass (Lolium multiflorum Lam.) and its nutrient (N, P, K, Ca and Mg) content increased, whereas EDTA and DTPA with a dose of 4 mmol/kg decreased the biomass of ryegrass and its nutrient (N, P, K, Ca and Mg) content. EDTA and DTPA significantly enhanced the contents of Zn and Pb in ryegrass as compared with the control. As for Pb, the content of Pb in root and shoot reached a maximum of 2730.54 and 2484.42 mg/kg respectively when the dose of EDTA and DTPA was 2 mmol/kg. In the case of Zn, the content of Zn in root and shoot reached a maximum of 2428.37 and 2010.43 mg/kg respectively. The total Pb and Zn accumulations and translocation ratio in ryegrass had also been enhanced. The results indicated that EDTA and DTPA had great potential to be used for ryegrass to remedy Pb and Zn contamination soil of lead-zinc mining area, but should be used cautiously because of their environmental risks.
Control plane compression

We develop an algorithm capable of compressing large networks into smaller ones with similar control plane behavior: For every stable routing solution in the large, original network, there exists a corresponding solution in the compressed network, and vice versa. Our compression algorithm preserves a wide variety of network properties including reachability, loop freedom, and path length. Consequently, operators may speed up network analysis, based on simulation, emulation, or verification, by analyzing only the compressed network. Our approach is based on a new theory of control plane equivalence. We implement these ideas in a tool called Bonsai and apply it to real and synthetic networks. Bonsai can shrink real networks by over a factor of 5 and speed up analysis by several orders of magnitude.
Examination of Sleep Quality, Anxiety and Depression in Stroke Patients

INTRODUCTION: Different level of sleep problems, depression and anxiety are common in stroke patients. The aim of the present study was to examine the sleep quality, anxiety and depression in stroke patients and to examine effect of duration of the disease on that symptoms. METHODS: Hemiplegic patients admitted to the Mustafa Kemal University Hospital Neurology Department, during 1 year and accepted to participate to the study were included (n=30). Demographic data, duration of the hemiplegia were recorded. Patients’ sleep quality was assessed with The Pittsburgh Sleep Quality Index, depression with The Beck Depression Inventory, anxiety with Generalized Anxiety Disorder Scale and cognitive status with the Mini Mental State Examination. RESULTS: It was found that 40% of the patients’ cognitive status was normal and the remain had different level of cognitive impairment. 33.3% of the patients had severe generalized anxiety disorder and only 10 % of them depression status was normal. We found that 53.3% of the subjects had poor sleep quality. The correlation between Beck Depression Inventory and The Pittsburgh Sleep Quality Index was significant, positive and moderate. Beck Depression Inventory had significant, positive and moderate correlation with Generalized Anxiety Disorder Scale too. Other correlations were mild and not significant. We find that duration did not affect the anxiety, the sleep quality, depression and body mass index. DISCUSSION and CONCLUSION: We found that there was a relationship between sleep quality and depression; depression and anxiety. Psychological state affects the sleep quality and vice versa. Duration of the disease did not affect the sleep quality, depression, anxiety and there was not any difference between male and female sex in these symptoms.
Snatched Secrets: Reporting Trade Secrets TheftModelling a firm’s decision to report a theft of trade secrets

A growing priority for firms and governments is the protection of trade secrets against theft. Trade secrets, often stored and protected in digital formats, represent key intangible assets for firms and strategic assets for economies. Recent years has seen the expansion of trade secrets protection in both US and EU law, as governments seek to adapt policy to the changing and expanding threat of cybercrime. Here, we build on US FBI policy to model the interaction between a firm and a government protection agency. We consider the decision by the firm to adopt high or low security measures to protect their trade secrets, the decision to report an incident of theft, and the government protection agency’s assignment of low or high priority to the case. We find that whether security breaches are made public or not can be the margin that determines whether firms will invest in high security. Our findings suggest that adjusting reporting requirements could be a policy measure to help address the growing threat of trade secret theft.
The effect of table olive preparing methods and storage on the composition and nutritive value of olives By

Tres tipos de aceitunas de mesa –verdes estilo español, negras naturales estilo kalamata y negras naturales –fueron preparadas a par t ir de aceitunas de la variedad Memecik y s u composición química y valor nutritivo fue analizado durante su procesado y almacenamiento. Se determinaron: la humedad, la grasa y su composición en ácidos grasos, la fibra cruda y proteína, los azúcares totales y reductores, el cloruro sódico y la ceniza, la acidez, el pH y algunos minerales en muestras de pulpa de aceituna de mesa. El valor calórico de los tres tipos de aceitunas fueron calculados a partir del contenido en proteína, hidrato de carbono y grasa. Todos los resultados obtenidos durante el procesado y almacenamiento para los tres tipos de aceitunas de mesa son discutidos minuciosamente.
Manifold Learning via the Principle Bundle Approach

In this paper, we propose a novel principal bundle model and apply it to the image denoising problem. This model is based on the fact that the patch manifold admits canonical groups actions such as rotation. We introduce an image denoising algorithm, called the diffusive vector non-local Euclidean median (dvNLEM), by combining the traditional nonlocal Euclidean median (NLEM), the rotational structure in the patch space, and the diffusion distance. A theoretical analysis of dvNLEM, as well as the traditional nonlocal Euclidean median (NLEM), is provided to explain why these algorithms work. In particular, we show how accurate we could obtain the true neighbors associated with the rotationally invariant distance (RID) and Euclidean distance in the patch space when noise exists, and how we could apply the diffusion geometry to stabilize the selected metric. The dvNLEM is applied to an image database of 1,361 images and a comparison with the NLEM is provided. Different image quality assessments based on the error-sensitivity or the human visual system are applied to evaluate the performance.
The link between atmospheric radicals and newly formed particles at a spruce forest site in Germany

Abstract. It has been claimed for more than a century that atmospheric new particle formation is primarily influenced by the presence of sulfuric acid. However, the activation process of sulfuric acid related clusters into detectable particles is still an unresolved topic. In this study we focus on the PARADE campaign measurements conducted during August/September 2011 at Mt Kleiner Feldberg in central Germany. During this campaign a set of radicals, organic and inorganic compounds and oxidants and aerosol properties were measured or calculated. We compared a range of organic and inorganic nucleation theories, evaluating their ability to simulate measured particle formation rates at 3 nm in diameter (J3) for a variety of different conditions. Nucleation mechanisms involving only sulfuric acid tentatively captured the observed noon-time daily maximum in J3, but displayed an increasing difference to J3 measurements during the rest of the diurnal cycle. Including large organic radicals, i.e. organic peroxy radicals (RO2) deriving from monoterpenes and their oxidation products, in the nucleation mechanism improved the correlation between observed and simulated J3. This supports a recently proposed empirical relationship for new particle formation that has been used in global models. However, the best match between theory and measurements for the site of interest was found for an activation process based on large organic peroxy radicals and stabilised Criegee intermediates (sCI). This novel laboratory-derived algorithm simulated the daily pattern and intensity of J3 observed in the ambient data. In this algorithm organic derived radicals are involved in activation and growth and link the formation rate of smallest aerosol particles with OH during daytime and NO3 during night-time. Because the RO2 lifetime is controlled by HO2 and NO we conclude that peroxy radicals and NO seem to play an important role for ambient radical chemistry not only with respect to oxidation capacity but also for the activation process of new particle formation. This is supposed to have significant impact of atmospheric radical species on aerosol chemistry and should be taken into account when studying the impact of new particles in climate feedback cycles.
Chemical compositions, A-glucosidase and A-amylase inhibitory activities of crude polysaccharides from the endodermis of shaddock (Citrus maxima)

The chemical composition of shaddock mainly includes polyphenols, proteins and polysaccharides. However, polysaccharides from shaddock materials have received much less consideration than polyphenols (Fellers et al., 1990). Herein the chemical compositions, α-glucosidase and α-amylase inhibitory activities of crude polysaccharides from the endodermis of shaddock were investigated. The exopolysaccharides (EPS) exhibited a broad and intense peak at 3300-3400 cm-1 that characterized the absorption of the hydroxyl group, and one weak C-H band at around 2941.3 cm-1 in the IR spectrum. The content of neutral sugars in EPS was determined as 37.16%. The content of acidic sugar in EPS was determined as 33.71%. EPS exhibited the highest content of neutral sugar. The content of proteins in EPS was 5.75%. The content of polyphenols was 6.52%. The EPS mainly consisted of four types of polysaccharides with molecular weights of 110 kD, 68 kD, 31 kD and 12 kD. The crude EPS showed significantly higher inhibitory effects on α-glucosidase and α-amylase (inhibition to 74.12% and 86.59%, respectively).
On the Relationship between Theory of Mind and Syntax in Clinical and Non-Clinical Populations: State of the Art and Implications for Research

Over the years, different explanations have been given on the relationship between syntax and Theory of Mind,i.e., the ability to attribute mental states to others and predict, describe, and explain behavior based on such mental states. In the present study, we focus on the relationship between false-belief understanding as a crucial aspect of Theory of Mind, and on the ability to master the syntax of complementation,i.e., the ability to produce and comprehend sentences in a recursive way.Our purpose is to test two main hypotheses on the relationship between false-belief understanding and the ability to master the syntax of complementation: the dependence and the independence of false-belief understanding on syntactic complementation.We analyze studies on children with typical development, deaf children with deaf signing or hearing parents, children with specific language impairment, children diagnosed with autism spectrum disorder, longitudinal and training studies, and studies on adults with neuropsychological disorders.Strengths and weaknesses of the two hypotheses are discussed and limitations of the current state of knowledge are presented. A lifespan approach taking into account both the emergence and maintenance of false-belief understanding and using both implicit and explicit false-belief tasks is proposed to face the issue discussed.
Work, Idleness, and Play in Stendhal’s Lucien Leuwen

Abstract This article analyses Stendhal’s various representations of work, idleness, and play in Lucien Leuwen, showing how these serve to structure the novel’s analysis of power. The article begins by exploring the utilitarian discourses of (over)work and aristocratic discourses of idleness foregrounded in the novel. It goes on to explore the novel’s beyliste discourse of playfulness articulated by François Leuwen, Lucien’s manipulative banker father. It will be argued that Stendhal, far from endorsing M. Leuwen’s ludism, works to undermine it by distinguishing between types of play and, in particular, by placing the difference between play and play-acting at the centre of his narrative: Lucien plays like an absorbed child, whereas his father play-acts like an adult, determined to control how he is perceived by others.
Environmental Degradation in the Ikorodu Sub-Urban Lagos - Lagoon Coastal Environment, Nigeria

Human activities exert great pressures on the environment which in turn cause environmental stresses of various intensities depending on the factors involved and the sensitivity of the receiving environment.This study examines the effects of anthropogenic activities along the sub-urban lagoon fragile coastal ecosystem using DPSIR framework.The results show that the study area has undergone a tremendous change between 1964 and 2015 with the built up area increasing to about 1,080 ha (17.87%) in 2015 from 224 ha (1.32%) in 1964 at an average growth rate of 16.78ha per annum. The nature of the degradation includes an increasing fragility of the ecosystem through the emergence and expansion of wetlands, flooding and erosion as well as a reduction in the benefits from the ecosystem services. Population growth, between 2006 and 2015 for Ikorodu LGA, estimated at 8.84% per annum serves as the most important driving force in reducing the quality of the environment. This is in addition to Pressures emanating from anthropogenic activities. The state of the environment shows continuous resource exploitation (fishing and sand mining) with the impacts of the pressures coming from water pollution, bank erosion, biodiversity loss and flooding. Although there has been a strong policy formulation response from the government, weak implementation is a major challenge.The study recommends public awareness campaigns and the implementation of existing policies to ensure a sustainable sub-urban lagoon coastal environment.
"You don't want to be the next meme": College Students' Workarounds to Manage Privacy in the Era of Pervasive Photography

Pervasive photography and the sharing of photos on social media pose a signiﬁcant challenge to undergraduates’ ability to manage their privacy. Drawing from an interview-based study, we ﬁnd undergraduates feel a heightened state of being surveilled by their peers and rely on innovative workarounds – negotiating the terms and ways in which they will and will not be recorded by technology-wielding others – to address these challenges. We present our ﬁndings through an experience model of the life span of a photo, including an analysis of college students’ workarounds to deal with the technological challenges they encounter as they manage potential threats to privacy at each of our proposed four stages. We further propose a set of design directions that address our users’ current workarounds at each stage. We argue for a holistic perspective on privacy management that considers workarounds across all these stages. In particular, designs for privacy need to more equitably distribute the technical power of determining what happens with and to a photo among all the stakeholders of the photo, including subjects and bystanders, rather than the photographer alone.
Protective Effect of Low Concentrated Boric Acid in Oral Candidiasis: An In Vitro Study

Candida albicans (C. albicans) is the most common human commensal fungi found adhered to the mucosal membranes of the oral cavity. Under certain conditions, previously asymptomatic colonization can become virulent, resulting in oral candidiasis (OC). Acrylic denture bases are porous and can potentially harbor infection in the denture, the denture cup and the soft tissues of the mouth, promoting C. albicans overgrowth. Patients with OC who wear removable dentures are not only susceptible to Candida infection, but also to reinfection. The present study aimed to test the efficiency of using low concentrations of boric acid (BA) solution for the topical treatment of OC, and to prevent reinfection. Overall, our findings support the potential use of low concentrated BA solutions for the topical treatment of OC, disinfection of dentures, and prevention of reinfection.