Hygrothermal performance of building envelopes in the tropics under operative conditions : condensation and mould growth risk appraisal

Poor indoor hygrothermal performance increases the risk of indoor moisture problems and deterioration due to mould growth, corrosion and damage to archival materials. Hence, proper control of indoor thermohygric intensity abates indoor moisture and its associated problems. This paper presents the results of envelopes hygrothermal performance assessments in a hot and humid climate building with varying operational profile between adjacent spaces. The case-studied building runs on 24hrs cooling mode in one part against natural and/or mechanical supply-exhaust fan means on the other. In-situ experiments were combined with hygrothermal analytical methods to assess the envelope thermal quality together with the operative conditions against condensation and mould growth risks. The results show that the building is overcooled leading to poor envelope hygrothermal performance with associated condensation and mould growth problems on non-airconditioned sides of the envelopes

Isolation and characterization of native Bacillus thuringiensis strains from Saudi Arabia with enhanced larvicidal toxicity against the mosquito vector Anopheles gambiae (s.l.).

BACKGROUND: Worldwide, mosquito vectors are transmitting several etiological agents of important human diseases, including malaria, causing millions of deaths every year. In Saudi Arabia, as elsewhere, vector-control is based mostly on chemical insecticides which may be toxic and cause environmental deprivation. Here, to support the development of bio-pesticide alternatives, a study was conducted to identify native Bacillus thuringiensis (Bt) isolates with improved toxicity against the malaria vector, Anopheles gambiae (s.l.). METHODS: Sixty-eight Bt isolates were obtained from 300 soil and other samples collected from 16 sites across Saudi Arabia. Bt identification was based on morphological characteristics of colonies, shape of parasporal crystals and biochemical profiles. After characterization of their mosquitocidal activity, larvicidal strains were described through 16S ribosomal DNA gene sequencing, cry, cyt and chi genes PCR-amplification profiles, and SDS-PAGE protein analyses. RESULTS: Spherical Bt crystals were predominant amongst the 68 isolates (34%), while irregular, bi-pyramidal and spore-attached crystals were found in 32, 13 and 21% of strains, respectively. LC50 and LC90 bioassays showed that 23/68 isolates were larvicidal, with distinct biochemical activity profiles compared to non-larvicidal Bt strains. Eight larvicidal strains showed larvicidal activity up to 3.4-fold higher (LC50 range: 3.90-7.40 μg/ml) than the reference Bti-H14 strain (LC50 = 13.33 μg/ml). Of these, 6 strains had cry and cyt gene profiles similar to Bti-H14 (cry4Aa, cry4Ba, cry10, cry11, cyt1Aa, cyt1Ab, cyt2Aa). The seventh strain (Bt63) displaying the highest larvicidal activity (LC50 = 3.90 μg/ml) missed the cry4Aa and cyt1Ab genes and had SDS-PAGE protein profiles and spore/crystal sizes distinct from Bti-H14. The eight strain (Bt55) with LC50 of 4.11μg/ml had cry and cyt gene profiles similar to Bti-H14 but gave a chi gene PCR product size of 2027bp. No strains harbouring cry2, cry17 + 27, cry24 + 40, cry25, cry29, cry30, or cyt2Ba were detected. CONCLUSION: This study represents the first report of several Saudi indigenous Bt strains with significantly higher larvicidal efficacy against An. gambiae than the reference Bti-H14 strain. The very high toxicity of the Bt63 strain, combined with distinct cry and cyt genes and SDS-PAGE-protein profiles makes it a promising candidate for future applications in mosquito bio-control

Higgs production in CP-violating supersymmetric cascade decays: probing the `open hole' at the Large Hadron Collider

A benchmark CP-violating supersymmetric scenario (known as 'CPX-scenario' in the literature) is studied in the context of the Large Hadron Collider (LHC). It is shown that the LHC, with low to moderate accumulated luminosity, will be able to probe the existing `hole' in the $m_{h_1}$-$\tan\beta$ plane, which cannot be ruled out by the LEP data. We explore the parameter space with cascade decay of third generation squarks and gluino with CP-violating decay branching fractions. We propose a multi-channel analysis to probe this parameter space some of which are background free at an integrated luminosity of 5-10 fb$^{-1}$. Specially, multi-lepton final states (3\l,\, 4\l and like sign di-lepton) are almost background free and have $5\sigma$ reach for the corresponding signals with very early data of LHC for both 14 TeV and 7 TeV center of mass energy.Comment: 24 pages, 9 figures, references added as in the journal versio

ETHNIC RELATIONS IN THE CITY OF PONTIANAK (A STUDY OF INTER-ETHNIC RELATIONS AT GANG DAMAI, KOTA BARU, PONTIANAK)

Peace and harmony in life is one of the goals of the communities at Gang Damai in their social relations. This condition becomes very special when, in other places at the same time, conflicts and hostilities often occurred in the history of inter-ethnic relations in this region. This is the underlying reason of the naming of the place of this research i.e. “Gang Damai” (peaceful alley). This study found four key factors underlying the harmony and good relations between the ethnic groups; first, a positive outlook on the ethnic communities; second, distinctive efforts undertaken by the community members in order to continue to maintain good social relations, security, peace and harmony; third, awareness practiced by all communities in an effort to build and maintain social relations in the spirit of solidarity; fourth, different ethnic communities manage to minimize all forms of issues that could potentially become a trigger for conflicts by building intensive communication and social relations among themselves. In addition, unique social relation patterns built and inter-ethnic marriages have also become a model in building peaceful ethnic relations at Gang Damai until today. Keywords: Peace, Harmony, Social Relations, Ethnicit

CP violating asymmetry in H±→W±h1H^\pm\to W^\pm h_1 decays

The CP violating asymmetry from the decay rates $H^\pm\to W^\pm h_1$ of charged Higgs bosons into the lightest neutral Higgs boson and a $W^\pm$ boson is calculated and discussed in the complex MSSM. The contributions from all complex phases are considered, especially from the top-squark trilinear coupling, which induces a large contribution to the CP asymmetry.Comment: 19 pages, 10 figures, version published in JHE

Islam and Tradition in Nanga Jajang: Social and Religious Practices Of the Malay Community

Islam basically brings noble values in managing human relationship with God (hablumminallah). With these noble values, Islam teaches the way for humans to worship God. Meanwhile, traditions which are the rituals and customs of a society, is also an attempt to build a relationship with something other than human. Therefore, it is clear that Islam and traditions that are present in people’s behavior also bring certain values that are different from each other. In the Malay community of Nanga Jajang, Islam as a religion and religious rituals are inseparable from the traditional rituals. In fact, there are no clear boundaries between traditions and religious rituals in practice, as seen in ma`syiral jum`atan, acara begunting rambut (hair cutting ceremony), sunatan (circumcision), barobat kampung (traditional healing), etc. In social traditions, religion practices also run simultaneously such as reading the Qur’an and shalawat to the prophet. On the other hand, religious practices are also incorporated into elements of local traditions such as the hair cutting ceremony for infants, circumcision, etc., with a set of materials that are also found in social traditions. Similarly, the prayer used in the traditional healing appears to have the process of completion, even accommodation of Islamic values and traditions in the practice of the life the Malay community in Nanga Jajang

RANCANG BANGUN SISTEM INFORMASI PENJUALAN PADA UMKM MENGGUNAKAN MACRO MICROSOFT EXCEL

RANCANG BANGUN SISTEM INFORMASI PENJUALAN PADA UMKM MENGGUNAKAN MACRO MICROSOFT EXCE

A Comprehensive Analysis of Electric Dipole Moment Constraints on CP-violating Phases in the MSSM

We analyze the constraints placed on individual, flavor diagonal CP-violating phases in the minimal supersymmetric extension of the Standard Model (MSSM) by current experimental bounds on the electric dipole moments (EDMs) of the neutron, Thallium, and Mercury atoms. We identify the four CP-violating phases that are individually highly constrained by current EDM bounds, and we explore how these phases and correlations among them are constrained by current EDM limits. We also analyze the prospective implications of the next generation of EDM experiments. We point out that all other CP-violating phases in the MSSM are not nearly as tightly constrained by limits on the size of EDMs. We emphasize that a rich set of phenomenological consequences is potentially associated with these generically large EDM-allowed phases, ranging from B physics, electroweak baryogenesis, and signals of CP-violation at the CERN Large Hadron Collider and at future linear colliders. Our numerical study takes into account the complete set of contributions from one- and two-loop EDMs of the electron and quarks, one- and two-loop Chromo-EDMs of quarks, the Weinberg 3-gluon operator, and dominant 4-fermion CP-odd operator contributions, including contributions which are both included and not included yet in the CPsuperH2.0 package. We also introduce an open-source numerical package, 2LEDM, which provides the complete set of two-loop electroweak diagrams contributing to the electric dipole moments of leptons and quarks.Comment: 23 pages, 11 figures; v2: references added, minor change

Construction of Association Scheme Using Some (123)-avoiding Class of Aunu Patterns

This paper presents some backgrounds research on association scheme using a class of (123)-avoiding pattern of Aunu numbers as an application area. It also attempts to highlight some further applications in other set structures. The finding in this research has shown that there is some interrelationship between the succession scheme used in generating Aunu numbers and the concept of association scheme. This research also shows us that the Aunu patterns can be used in design theory

Removal of Congo Red Dye from Aqueous Solution using Sugarcane Bagasse and Bambara Groundnut Shell

A methodology involving sugarcane bagasse (SB) and Bambara groundnut shell (BGS) as adsorbents was developed in order to remove the carcinogenic Congo red dye from aqueous medium. The effect of contact time, sorbent dosage, initial concentration and pΗ were investigated. The results showed high efficiency of ≈ 93% and 75% using 4.5g of SB and BGS respectively. The results also indicated that the % removal increases with increase in dye loading concentration, while it decreased with an increase in pΗ of the solution from 4 to 10. From the results, it is possible to conclude that sugarcane bagasse and Bambara groundnut shell are good adsorbents for dye effluent treatment.Keywords: Bambara groundnut shell, Congo red, Sugarcane Bagasse, % Dye Removal