The development of mobile robot for air pollution data capture (POPOBOT)

In the Modern era, the environmental issues have given significant impact to the human live. The air pollution indoor and outdoor environment sometimes dangerous to the human health and it needs to be justified. To fulfill this purpose, telemeasurement process and technique should be used. Therefore, in this research, the mobile robot with equipped by several air quality parameters sensors is developed. The robot is controlled using remote control and using wireless connection system. The air quality in target area will be monitored by using sensors which will capture data and send it to the Central Control (laptop) for analyzing. And then to be able monitor certain area investigation, the mobile robot is guided by using wireless camera. Result from this project can make user to monitor and navigate the target area by using mobile robot and this can make user know the situation on that area. PIC16F887A has been chosen in this project as the main device which is controlling all activities of the mobile robot. Data capture and robot movement has been done in wireless to make user easy to do the monitoring activities. From result, knowing that the error percentage of the data capture is small compare to the digital meter. So from that knowing this project is effective because it make user easy to do air pollution monitoring process also can prevent the gas poisoning cases from happen

What really matters? The elusive quality of the material in feminist thought

The concept of the 'material' was the focus of much feminist work in the 1970s. It has always been a deeply contested one, even for feminists working within a broadly materialist paradigm of the social. Materialist feminists stretched the concept of the material beyond the narrowly economic in their attempts to develop a social ontology of gender and sexuality. Nonetheless, the quality of the social asserted by an expanded sense of the material - its 'materiality' - remains ambiguous. New terminologies of materiality and materialization have been developed within post-structuralist feminist thought and the literature on embodiment. The quality of 'materiality' is no longer asserted - as in materialist feminisms - but is problematized through an implicit deferral of ontology in these more contemporary usages, forcing us to interrogate the limits of both materialist and post-structuralist forms of constructionism. What really matters is how these newer terminologies of 'materiality' and 'materialization' induce us to develop a fuller social ontology of gender and sexuality; one that weaves together social, cultural, experiential and embodied practices

Rawatan larut resapan menggunakan penjerap media komposit karbon teraktif, zeolit, batu kapur dan enapcemar sisa kertas

Kajian ini dijalankan bagi meneroka potensi WPS dan LS untuk menggantikan sebahagian AC dan ZEO dalam penghasilan media komposit baharu. Nisbah optimum AC-WPS (media hidrofobik) adalah 2:2, manakala ZEO-LS (media hidrofilik) adalah 25:15. Nisbah optimum 4:4 media hidrofobik-hidrofilik dipilih berdasarkan ciri-ciri penjerapan NH3-N dan COD, dan 30 % OPC telah digunakan sebagai bahan pengikat. Media komposit ZELPA telah dihasilkan dan pencirian sifat fizikal-kimia dilakukan. ZELPA digunakan dalam kajian isoterma penjerapan NH3-N, COD dan warna pada keadaan optimum pH 7, kelajuan goncangan 200 rpm, saiz partikel 1.18-2.36 mm dan masa sentuhan 120 minit. Setelah ujian kelompok dilaksanakan, ujikaji isoterma penjerapan dan kinetik penjerapan dilakukan. Kapasiti penjerapan untuk kesemua parameter (dalam mg/g) masing-masing 27.55, 48.08 dan 34.48. Kajian perbandingan menunjukkan keupayaan penjerapan ZELPA terhadap NH3-N dan COD adalah lebih baik daripada ZEO dan AC, dan setanding dengan AC bagi penjerapan warna. Kajian kinetik penjerapan mendapati ZELPA mengikuti hampir kesemua model yang dikaji iaitu pseudo tertib pertama dan kedua, Elovich dan pembauran intra-partikel. Kajian penjerapan turus dengan menggunakan model EBCT menunjukkan penyingkiran sebanyak 99 % untuk NH3-N dan 98 % untuk COD dan warna. Kapasiti bolos dan masa tepu didapati makin berkurangan dengan berlakunya peningkatan terhadap kadar aliran. Didapati data uji kaji lebih mematuhi Model Thomas dan Yoon-Nelson berbanding Adams-Bohart. ZELPA boleh digunakan semula selepas menjalani ujikaji regenerasi dengan larutan 0.5 M NaCl pada pH 11-12 (dilaras dengan 1 M NaOH). Dengan kapasiti penjerapan untuk NH3-N, COD dan warna (dalam mg/L) masing-masing 32.26, 38.76 dan 31.95. Gabungan media alternatif WPS dan LS menunjukkan impak positif dalam penjerapan larut resapan. Penggunaan WPS dalam teknologi penjerapan secara tidak langsung berupaya menangani masalah pelupusan sisa kertas yang tidak boleh dikitar semula

The physicochemical and antioxidant properties of double-boiled kelulut honey

Kelulut honey is a unique Malaysian food that has beneficial components and high potential in many health aspects. In commercial processing plant, honey is usually subjected to thermal treatment, where its quality is compromised due to unstable and thermolabile components. Therefore, double boiling was chosen as it does not exert significant heat, thus minimizes damage done. The quality was determined after treated by double boiling technique at optimized condition. Three different sources of Kelulut honey based on the main types of foods consumed by the bees (Coconut, Multifloral and Wild Flowers) were tested. Kelulut honey samples were subjected to an optimized condition at 60 °C for 35 minutes. Thermal treatment at the same condition was conducted for comparison purpose. The results showed that double boiling treatment increased the total phenolic content of Kelulut-C honey significantly, from 2430.78 ± 12.24 to 2711.10 ± 23.00 mg GAE/100 g. The treatment also significantly increased the brown pigment for both Kelulut-C and Kelulut-W honey by 11.11 ± 0.00% and 27.27 ± 0.00%, respectively. Whereas, the pH and moisture content of all samples remain unchanged with no formation of hydroxymethylfurfural (HMF) was observed. A preliminary four-week storage study showed that double boiling treatment improves physicochemical properties of Kelulut honey as compared to the untreated samples for all three types of Kelulut honey tested. Meanwhile, a room temperature (27 °C) condition leads to an improvement of antioxidant properties as compared to cold temperature (4 °C). In conclusion, double boiling treatment has established itself as a good alternative processing method for Kelulut honey, hence increasing the possibility to bring forward Kelulut honey as a unique source for the application in food and beverages industries

Balancing contractual and relational approaches for PPP success and sustainability

Useful synergies are targeted by proposing a convergence of hitherto parallel international endeavours towards: (1) developing better and sustainable relationships for more productive construction project teams, in general; and (2) optimising the necessarily long term contractual arrangements of PPPs in particular. Examples are drawn from Africa and Latin America to reinforce reported PPP experiences from other regions, in building up a case for injecting ‘relational contracting approaches’ in order to develop more productive and sustainable PPPs. Strong and sustainable relationships are shown to be essential, and complementary to appropriate contractual incentives, that would together empower PPP project teams to focus on developing sustainable infrastructure and ultimately on overall sustainable development. These propositions are merged into a basic model that merits further investigation and development, in order to ensure that planned PPPs benefit the community at large, in respect of both present and future generations

Helicity-1/2 Mode as a Probe of Interactions of Massive Rarita-Schwinger Field

We consider the electromagnetic and gravitational interactions of a massive Rarita-Schwinger field. Stueckelberg analysis of the system, when coupled to electromagnetism in flat space or to gravity, reveals in either case that the effective field theory has a model-independent upper bound on its UV cutoff, which is finite but parametrically larger than the particle's mass. It is the helicity-1/2 mode that becomes strongly coupled at the cutoff scale. If the interactions are inconsistent, the same mode becomes a telltale sign of pathologies. Alternatively, consistent interactions are those that propagate this mode within the light cone. Studying its dynamics not only sheds light on the Velo-Zwanziger acausality, but also elucidates why supergravity and other known consistent models are pathology-free.Comment: 18 pages, cutoff analysis improved, to appear in PR

An Evaluation of Risk Attitudes and Risk Tolerance in Emergency Medicine Residents

An underlying issue to our current healthcare system is how decisions made in the emergency department affect patients. This is paramount for underserved populations, which are more likely to have poor physical and mental health, lack of primary care, greater use of health services, and be generally dissatisfied with their medical care.1,2 What should the emergency physician (EP) do for these patients? These decisions are largely based upon individual risk tolerance. While risk is a indelible part of emergency medicine (EM), a risk profile of EM residents has not been compiled. Knowledge of risk taking tendencies among this niche of medical professionals could be critical. If EM residents have great risk aversion, they might practice defensive medicine, thereby incurring crippling costs4. On the other hand, if emergency medicine residents are greatly risk tolerant, they may make decisions that lead to significant morbidity and mortality. It is essential to establish a baseline risk profile before any corrective measures can be advanced. This study attempted to accomplish precisely that using Risk Type CompassTM.https://jdc.jefferson.edu/cwicposters/1023/thumbnail.jp