1,663 research outputs found
Marko Kuol
No full textabstract: After Marko Kuol’s village was bombed, he walked with his older nephew to Ethiopia at the age of seven.
“Lost Boys Found” is an ongoing, interdisciplinary project that is collecting, recording and archiving the oral histories of the Lost Boys/Girls of Sudan. The collection is a work-in-progress, seeking to record the oral history of as many Lost Boys/Girls as are willing, and will be used in a future book.Age: 25Region: Upper NileThis picture and bio was donated to the Lost Boys Found oral history project from The Arizona Lost Boys Cente
Crystal Structure Complexity and Approximate Limits of Possible Crystal Structures Based on Symmetry-Normalized Volumes.
No full textRules that control the arrangement of chemical species within crystalline arrays of different symmetry and structural complexity are of fundamental importance in geoscience, material science, physics, and chemistry. Here, the volume of crystal phases is normalized by their ionic volume and an algebraic index that is based on their space-group and crystal site symmetries. In correlation with the number of chemical formula units Z, the normalized volumes exhibit upper and lower limits of possible structures. A bottleneck of narrowing limits occurs for Z around 80 to 100, but the field of allowed crystalline configurations widens above 100 due to a change in the slope of the lower limit. For small Z, the highest count of structures is closer to the upper limit, but at large Z, most materials assume structures close to the lower limit. In particular, for large Z, the normalized volume provides rather narrow constraints for the prediction of novel crystalline phases. In addition, an index of higher and lower complexity of crystalline phases is derived from the normalized volume and tested against key criteria
Mineralogical background of Alinci locality, North Macedonia
No full textOne of the most interesting aspects of Crn Kamen mineralogy is the presence of several oxide
phases, some of which are extremely rare in nature. The first mentioned oxide found on this locality,
apart from quartz, is davidite Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 which was described by Damjanović
and Vukasović, (1961). Fragments of former larger crystals estimated up to 15 cm in size were found in
a cavity of the crushed and weathered syenites. Bermanec et al., (1990) analyzed the samples of the
same crystal samples and determined that it is actually a uranium rich metamictic senaite
Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38. However, even that was not the correct determination.
Wülser et al., (2005) found a mineral of a similar, uranium rich composition in the western Swiss Alps
which was not metamictic. This enabled them to see that the uranium is a species defining cation and
they named the new mineral cleusonite (Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38. It was
mentioned that the samples from Crn Kamen also correspond to metamictic cleusonite, not senaite or
davidite (Wülser et al., 2005; Biagioni et al., 2014). Brannerite UTi2O6 was also found in the silicified
parts of the fine-grained Quartz syenits in the direction of Topolčane (Vukasović and Mihajlović-Vlaić
1963). In addition to these rare phases, large rutile crystals as well as hematite, ilmenite and magnetite
can be found (Barić, 1965). Possibly the most peculiar aspect of the Crn Kamen mineralogy is the
mineral macedonite PbTiO3 which was first described here as well (Radusinović and Markov, 1971)
Making Geochemical Microanalytical Imagery Accessible and Reusable
No full textThe production and use of 2D and 3D imagery in geochemistry and cosmochemistry is becoming pervasive due to advancements in analytical instrumentation that can quantitatively measure elemental concentrations and isotopic compositions of samples in-situ across large areas or at increasingly higher spatial resolution with methods such as scanning electron microscopy (SEM), electron microprobe (EMP), secondary ion mass spectrometry (SIMS), transmission electron microscopy (TEM) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Complimenting and extending precise point analysis, these techniques now produce quantitative maps, which connect geochemical and textural data of the mineral phases in a sample. This combination of spatial imaging with microanalysis of features such as chondrules, melt inclusions, and the matrix results in a complete contextual understanding of a sample.
Current geochemistry data repositories are generally not equipped to host large volumes of images or provide users with tools to work with these images. There are however a growing number of domain specific repositories related to specific techniques (ex. x-ray computed tomography) or research fields (ex. meteoritics). Further, there are a growing number of commercial and research led software tools for exploring and comparing images in a given repository (i.e. SAMIS associated with OSIRIS-Rex or Zeiss Data Explorer). The increase in specialist repositories and query tools means that the microscopy data is now more Findable and potentially Interoperable than at any earlier time. In this presentation we will discuss the need to develop standards around the storage of microscopy data and its associated metadata in open file formats to ensure that these repositories are sharing data which is Accessible and Reusable
Control and physical intelligence
No full textChapter 5 focuses on biological and synthetic control/intelligence. This chapter of the 2nd edition includes discussion of deep learning, do-it-yourself (DIY) robotic projects, popular microcontrollers, contributed by Marko Popovic as well as material contributed by new co-author Mihailo Lazarevic on fractional PID control approach. All these are quite relevant in the context of biomechatronics research
Control and physical intelligence
No full textChapter 5 focuses on biological and synthetic control/intelligence. This chapter of the 2nd edition includes discussion of deep learning, do-it-yourself (DIY) robotic projects, popular microcontrollers, contributed by Marko Popovic as well as material contributed by new co-author Mihailo Lazarevic on fractional PID control approach. All these are quite relevant in the context of biomechatronics research
Making Geochemical Microanalytical Imagery Accessible and Reusable
No full textThe production and use of 2D and 3D imagery in geochemistry and cosmochemistry is becoming pervasive due to advancements in analytical instrumentation that can quantitatively measure elemental concentrations and isotopic compositions of samples in-situ across large areas or at increasingly higher spatial resolution with methods such as scanning electron microscopy (SEM), electron microprobe (EMP), secondary ion mass spectrometry (SIMS), transmission electron microscopy (TEM) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Complimenting and extending precise point analysis, these techniques now produce quantitative maps, which connect geochemical and textural data of the mineral phases in a sample. This combination of spatial imaging with microanalysis of features such as chondrules, melt inclusions, and the matrix results in a complete contextual understanding of a sample.
Current geochemistry data repositories are generally not equipped to host large volumes of images or provide users with tools to work with these images. There are however a growing number of domain specific repositories related to specific techniques (ex. x-ray computed tomography) or research fields (ex. meteoritics). Further, there are a growing number of commercial and research led software tools for exploring and comparing images in a given repository (i.e. SAMIS associated with OSIRIS-Rex or Zeiss Data Explorer). The increase in specialist repositories and query tools means that the microscopy data is now more Findable and potentially Interoperable than at any earlier time. In this presentation we will discuss the need to develop standards around the storage of microscopy data and its associated metadata in open file formats to ensure that these repositories are sharing data which is Accessible and Reusable
Five Years of Constitutional Jurisprudence in Bosnia and Herzegovina: A First Balance. EDAP 7/2004
No full textThe article reflects the experiences of the author after having served as one of the three international judges of the Constitutional Court of BiH from 1997 to 2002. Based on the relevant case-law of the Constitutional Court it gives a basic overview of the constitutional structure of BiH and analyses the position of the Court vis-à-vis other institutions established under the Dayton-Agreement and the powers of judicial review and human rights protection based on its appellate jurisdiction. Moreover means of interpretation and the elements of constitutional doctrine elaborated through case-law as well as organisational and procedural matters such as the role of dissenting opinions are discussed. In conclusion the article reflects the role of the Constitutional Court in transition from an ethnically divided and war-torn society to democracy and the effective protection of human and minority rights
Uloga boje u gradnji glazbenog oblika u odabranim djelima Marka Ruždjaka / Sound Spaces: The Role of Timbre in Building Musical Form Within a Selection of Marko Ruždjak's Work
No full textSome of the most successful works in the opus of Marko Ruždjak would have been impossible to conceive without the clarinet, the composer’s favourite instrument, as well as wit- hout the guitar, percussion, and voice (soprano, baritone or choir). The author researches how the composer’s choice of instrumental timbres and the voicing of the instruments as solo part or part of a larger sound aggregates (or units) is guided by a singular idea, which can be defi- ned as sound space. The timbre in this context is not conceived just as an element of a two- dimensional unit (building contrasts or overflowing and fusion in the temporal flow), rather it participates in the building of the spatial (and emotional) perspective. It contributes to a building of a specific musical form and expression. Ruždjak’s works have been analyzed through the categories that are linked to the Klangkomposition aesthetics of the Sixties. In the first part of the text, the formal function of individual parameters such as dynamic and regi- ster in the works Passamezzo, Tentatio, Canto peregrino, Versus, Ricercar is analyzed. In the se- cond part of the text, the analysis of Odrazi, Andantino, Notturno is developed through the more complex dimensions such as "static immobile surfaces", "surfaces in movement", "globally static surfaces, flecked with internal movement". They have been deduced from the published and unpublished texts by Györgi Ligeti. The theoretical background for the analysis of the sound's formal functions in the works of Ruždjak is part of the Klangkomposition's aesthetic. Together with the analysis of harmonic and motivic dimensions of the composer's language, they conduct to the possibility of a deeper understanding of the synthesis between various stylistic trajectories that are characteristic for the musical path of Marko Ruždjak
Christological viewpoints of Marko Marulić
No full textThe Croatian poet, theological writer and scholar of Bible Marko Ma-
rulić (1450—1524) was engaged in Christological subject matter. He
wrote De humilitate et gloria Christi — About humility and glory of
Christ. The author explains in his article of Marulić Christological view-
points and significance of his works
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