scholarly journals Neutron activation of a realgar ore sample

2008 ◽  
Vol 62 (5) ◽  
pp. 297-299
Author(s):  
Emira Zovko ◽  
Zdravko Pujic

The neutron activation by ?-spectrometry measurement was used to follow hydrometallurgical processes of a realgar ore sample from Vares area, Bosnia and Herzegovina. Realgar ore disintegration has been performed by dissolving in either sodium hydroxide or sodium sulphide. Realgar ore disintegration by dissolving with sodium hydroxide is not suitable for neutron activation processes. On the other hand, realgar ore disintegration by dissolving with sodium sulphide is suitable and useful for neutron activation processes. It has been found that As2O3 can be successfully separated in an amount of 85 ? 5%.

2019 ◽  
pp. 79-107
Author(s):  
Vedad Mulabdić

The paper discuses views on Bosnian language in Mehmed-beg Kapetanovic’s brochures. In literature, these brochures are determined differently by genre, primarily with its historical and literal, as well as political and social significance. Today we look at them as a testimony of one’s period breaking point in which shift between two states and its cultural-civilization forms had occurred, which has been reflected in a special way in the territory of Bosnia and Herzegovina, leaving the far reaching consequences on Bosniak’s overall social and cultural life. Within these brochures, Ljubušak talks about all current issues of that time, including the language name, which was one of the major challenges that faced new Austro-Hungarian administration in Bosnia and Herzegovina. On the other hand, other topics about which Ljubušak writes in these brochures will not be neglected, since some of them are actual in today’s historic moment.


2016 ◽  
Vol 9 (3) ◽  
pp. 669 ◽  
Author(s):  
Aleksandar Palavestra

Austro-Hungarian rule in Bosnia-Herzegovina by the end of the 19th century, presided by Benjamin Kallay, the Empire’s Minister of Finance and governor of Bosnia and Herzegovina, strived to gain wider international justification for its years’ long project of “civilizing” Bosnia and Herzegovina, or particular “historizing” of this proximal colony. In the summer of 1894 the Austro-Hungarian government in Bosnia and Herzegovina organized the Congress of Archaeologists and Anthropologists in the Landesmuseum in Sarajevo. The aim of the Congress was to inform archaeologists and anthropologists about the results of archaeological investigations in the country, and to seek their advice in directing further work. The wider ideological, political, as well as theoretical context of this congress, however, was much more complex and layered, with the aim to present the constructed image of Bosnia and Herzegovina as a country of tamed and civilized European Orient of rich past and luxurious folklore. The participants of the Congress discussed the archaeological and anthropological data presented to them by the hosts, including the specially organized excavations at Butmir and Glasinac. It is interesting to analyze, from the point of view of the history of archaeological ideas, the endeavours of the participants to adapt the archaeological finds before them to the wishes of the hosts, and, on the other hand, to their favoured archaeological paradigms dominant at the time.


2021 ◽  
Vol 25 (4) ◽  
pp. 561-566
Author(s):  
F.E. Otitigbe

Maintaining the pH of drilling fluid with suitable additives is one of the important operation for efficient drilling operations.  However, commercial hydroxides are mostly used to control the pH of the drilling fluid. This paper evaluates locally sourced pH additives of burnt plantain heads (BPH), burnt ripe burnt ripe plantain peels (BRPP), and burnt banana plantain peels (BBPP) in comparison with conventional potassium hydroxide (KOH) and sodium hydroxide (NaOH) as suitable agents to control pH of drilling fluid. The drilling fluid as prepared with bentonite and local clay in different concentrations of KOH, NaOH, BPH, BRPP and BBRPP including Traona. The result of the study showed that pH of the drilling improved with respective use of conventional KOH, NaOH, BPH, BRPP and BBRPP as additives. In addition, KOH showed the maximum percentage of degree (%) of improvement on the drilling fluid with 38.46-45.45% compared with 27.2-40% for NaOH. On the other hand, BRPP achieved 27.2-41.2%, followed with 20-33% and 20-29.4% for BPH and BBPP respectively. Thus, the locally sourced additives could be used to enhance the pH and properties of drilling fluid.


Atlanti ◽  
2017 ◽  
Vol 27 (2) ◽  
pp. 215-224
Author(s):  
Omer Zulić

The basic presumption of establishing a valid system of protection and management of documents at registry offices and archives is professional and trained archival staff. This assumption is particularly important in Bosnian archives, since they all operate with significantly reduced personnel capacities. On the other hand, Bosnian archival service is, compared to countries in the region, most affected by the transition process, in which the archival service should act urgently, professionally and responsibly, in order to fulfil the basic function of protection of archives. In such circumstances, only trained personnel can be a guarantee of timely and adequate professional work on the challenges facing the archival service of Bosnia and Herzegovina. In this paper, the author attempts through the experience of the Archives of Tuzla Canton to point out the importance of professional, educated staff in order to achieve the higher quality and better results in all fields of archives: of professional archival work to scientific research, publishing, cultural and educational activities.


Author(s):  
Hyun Jung Park ◽  
Sung Oh ◽  
Nagarajan Vinod ◽  
Seongmi Ji ◽  
Han Byul Noh ◽  
...  

Acellular bacterial ghosts (BGs) are empty non-living bacterial cell envelopes, commonly generated by controlled expression of the cloned lysis gene E of bacteriophage PhiX174. In this study, Vibrio parahaemolyticus ghosts (VPGs) were generated by chemically induced lysis and the method is based on minimum inhibitory concentration (MIC) of sodium hydroxide (NaOH), acetic acid, boric acid, citric acid, maleic acid, hydrochloric acid and sulfuric acid. The MIC values of the respective chemicals were 3.125, 6.25, < 50.0, 25.0, 6.25, 1.56 and 0.781 mg/ml. Except boric acid, the lysis efficiency was reached more than 99.99% at 5 min after treatment of all chemicals. Among those chemicals, NaOH-induced VPGs showed completely DNA-free that was confirmed by quantitative real-time PCR. Besides, lipopolysaccharides (LPS) extracted from the NaOH-induced VPGs showed no distinctive band on SDS-PAGE gel after silver staining. On the other hand, LPS extracted from wild-type bacterial cells as well as the organic acids-induced VPGs showed triple major bands and LPS extracted from the inorganic acids-induced VPGs showed double bands. It suggests that some surface structures in LPS of the NaOH-induced VPGs may be lost, weakened or modified by the MIC of NaOH. Nevertheless, Limulus amoebocyte lysate assay revealed that there is no significant difference in endotoxic activity between the NaOH-induced VPGs and wild-type bacterial cells. Macrophages exposed to the NaOH-induced VPGs at 0.5 × 106 CFU/mL showed cell viability of 97.9%, however the MIC of NaOH did not reduce the cytotoxic effect of wild-type bacterial cells. Like Escherichia coli LPS, the NaOH-induced VPGs are an excellent activator of pro-inflammatory cytokines (IL-1β and iNOS), anti-inflammatory cytokine (IL-10) and dual activities (IL-6) in the stimulated macrophage cells. On the other hand, the induction of TNF-α mRNA was remarkable in the macrophages exposed with wild-type cells. Scanning electron microscopy showed the formation of trans-membrane lysis tunnel structures in the NaOH-induced VPGs. SDS-PAGE and agarose gel electrophoresis also confirmed that cytoplasmic proteins and genomic DNA released from the VPGs to culture medium through the lysis tunnel structures. Taken together, all these results indicated that the NaOH-induced VPGs show the potency of safe, economical and effective inactivated bacterial vaccine candidate.


Author(s):  
Igor Popović ◽  
Olivera Ševo

The paper deals with the problem which the authorities of Bosnia and Herzegovina face with regard to foreign combatants who participated in the BH civil war between 1992 and 1995. Many of them stayed in the country after the war, and authorities intend to deport some of them, who represent a threat to national security. One of them is Imad Al Husin, whose case best reflects the abovementioned problem. Since he has a citizenship of Syria, which cannot be considered a safe country regarding the non-refoulement rule, process of deportation is facing difficulties. On the other hand, given the fact that he represents a threat to national security, he has been detained in an immigration centre for years. Since the authorities of Bosnia and Herzegovina cannot find a third safe country, the question arises on the lawfulness of the duration of his detention in the immigration centre. In that context, we analyzed the decision of the European Court of Human Rights and decisions of the Constitutional Court of Bosnia and Herzegovina regarding Imad Al Husin.


Two Homelands ◽  
2020 ◽  
Author(s):  
Andrej Kurnik ◽  
Maple Razsa

In this article the authors question how the EU’s enlistment of the post-Yugoslav states into the EU’s border regime has exacerbated local nationalisms. They also question how, on the other hand, migrant struggles to cross this territory have intersected with local movements against nationalism and silenced political alternatives. They use the notion of joint-agency, that is, the co-articulation of mobility struggles and anti­nationalist struggles, in ex-Yugoslavia to read the recent history of the route across the region generally and the current predicament in Bosnia and Herzegovina in particu­lar. This alternative reading facilitates an understanding of the potential of struggles for freedom of movement to reanimate a critique of the coloniality of power in the EUropean borderlands such as the Balkans.


2006 ◽  
Vol 2 (SPS5) ◽  
pp. 207-212
Author(s):  
Aleksandra Andic

AbstractIn Bosnia and Herzegovina astronomy teaching is almost nonexistent. There are only several courses within universities and they are usually given by physicists who themselves have had only elementary courses in astrophysics. When educational outreach is in question, the situation is even more grim. On the other hand, there is a huge interest for astrophysics in the student population. There are several solutions and possibilities which I will present, together with a discussion of the main obstacles which need to be overcome.


2021 ◽  
pp. 321-337
Author(s):  
Matijas Baković

The paper will consider the position of the Croatian language in Bosnia and Herzegovina and attempt to answer the question whether Croats living in Bosnia and Herzegovina should be using Standard Croatian as prescribed by the authorities in Zagreb or if they should insist upon their own peculiarities resulting from specific social and political circumstances as well as a hundred years of separation from the homeland. What position should be taken with regards to numerous words of Turkish, Arabic and Persian origin making up the vocabulary of Croats living in Bosnia and Herzegovina, considering the wide variety of words of German, Italian and Hungarian origin characteristic of the language spoken in different parts of Croatia? There are those who believe that the Croatian language in Bosnia and Herzegovina should and must be separate in some of its language solutions from the Croatian language as standardised by the authorities in Zagreb. They subscribe to the view that the Croatian language in Bosnia and Herzegovina, as well as the Croats themselves, are systematically neglected by the homeland, being used only for political point-scoring. On the other hand, the University of Mostar is the only university in Bosnia and Herzegovina teaching in the Croatian language as prescribed by the authorities in Croatia, invoking the unity of the Croatian people and language used by all Croats, regardless of their country of residence. The paper will try and clarify which position is the correct one, whether there can be only one correct position or the solution for Croats in Bosnia and Herzegovina lies in a different direction.


Author(s):  
Ljubinko Mitrović

The Law on Misdemeanors of the Republika Srpska was published in the Official Gazette of Republika Srpska, No. 63/2014. In the meantime, this law was amended in 2016 and 2017 (Official Gazette of the Republika Srpska, No. 110/2016 and 100/2017). On the other hand, the Law on Misdemeanors of the Federation of Bosnia and Herzegovina was published in the Official Gazette of the Federation of Bosnia and Herzegovina, No. 63/2014.The new misdemeanor laws have brought important novelties that will be the subject of this document. This applies in particular to the systems of misdemeanor sanctions envisaged by the aforementioned laws, and in particular, it is necessary to emphasize the prescription of imprisonment in the Law on Misdemeanors of Republika Srpska, while there is no Law on Misdemeanors of the Federation of Bosnia and Herzegovina, as well as deprivation of liberty for collecting fines is still in the Law on Misdemeanors of the Federation of Bosnia and Herzegovina, while, on the other hand, it has not been included in Law on Misdemeanors of the Republika Srpska since 2016.Considering the fact that these two, extremely important laws, are very different in terms of citizens, the question arises as to whether this degree of mismatch was really necessary and necessary?


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