bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of coke oven emissions and benzo[a]pyrene on blood pressure and electrocardiogram in coke oven workers
Authors: Yang Kai , Jiang Xuejun , Cheng Shuqun , Chen Chengzhi , Cao Xianqing , Tu Baijie 
Published: November 2016

Abstract

Objective
To evaluate the effects of occupational exposures to coke oven emissions (COEs) and benzo[a]pyrene (B[a]P) on the prevalence of hypertension and abnormal electrocardiogram (ECG) in coke oven workers.

Methods
We included 880 coke oven workers and 710 oxygen employees in the exposed and control groups, respectively. Blood pressure (BP), ECG, blood lipid levels, and glucose levels of all subjects were measured. COE and B[a]P concentrations at the bottom, side, and top of the oven and control plants were estimated by weighing and high-performance liquid chromatography.

Results
The COE concentration at the top and side was higher than that at the bottom (P &lt;0.05). The levels of B[a]P at the top and side significantly exceeded the limit value. Abnormal BP, ECG, the detection ratio of hypertension and left ventricular high voltage were significantly greater in the exposed group than in the control group (P &lt; 0.05) . The logistic regression analysis results revealed that age and B[a]P exposure were risk factors for hypertension in coke oven workers (P &lt; 0.05) and both were risk factors for abnormal ECG (P &lt; 0.05). Moreover, B[a]P exposure, age, and gender were risk factors for impaired fasting glucose in coke oven workers (P &lt;0.05).

Conclusions
B[a]P and COE exposures are risk factors for hypertension and abnormal ECG in coke oven workers.
Occupational noise-induced hearing loss in auto part factory workers in welding units in Thailand
Authors: Sriopas Apiradee , Chapman Robert S , Sutammasa Saravudh , Siriwong Wattasit 
Published: November 2016

Abstract

Objectives
Most workers in auto part factories in Thailand are usually exposed to excessive noise in their workplace. This study aimed to assess the level of occupational noise-induced hearing loss and investigate risk factors causing hearing loss in auto part factory workers in the welding units in Thailand.

Methods
This was a cross-sectional study. One hundred eighty subjects were recruited from 356 workers in the welding unit of three factories. Sixty eligible subjects in each factory were selected by systemic random sampling. The subjects were interviewed using a face-to-face questionnaire. Noise exposure levels and audiograms were measured by a noise dosimeter and an audiometer, respectively.

Results
The findings confirmed that noise exposure levels of 86-90 dB (A) and exceeding 90 dB (A) significantly increased the risk of hearing loss in either ear. A noise exposure level exceeding 90 dB (A) significantly increased the prevalence of hearing loss in both ears. Regarding, a 10-pack-year smoking history increased the prevalence of hearing loss in either ear or both ears. In addition, subjects with employment duration exceeding 10 years significantly developed hearing loss in either ear.

Conclusions
Th engineering control or personal control by wearing hearing protection device should be used to decrease noise exposure levels lower than 85 dB (A) for 8 h. Moreover, if the exposure level reaches 85 dB (A) for 8 h, the employer needs to implement a hearing conservation program in the workplace.
Effects of web-based stress and depression literacy intervention on improving work engagement among workers with low work engagement: An analysis of secondary outcome of a randomized controlled trial
Authors: Imamura Kotaro , Kawakami Norito , Tsuno Kanami , Tsuchiya Masao , Shimada Kyoko , Namba Katsuyuki , Shimazu Akihito 
Published: November 2016

Abstract

Objective
The purpose of this randomized, controlled trial was to examine the effects of a psychoeducational information website on improving work engagement among individual workers with low work engagement, where work engagement was measured as a secondary outcome.

Methods
Participants were recruited from registered members of a web survey site in Japan. Participants who fulfilled the eligibility criteria were randomly allocated to intervention or control groups. Immediately after the baseline survey, the intervention group was invited to study a psychoeducational website called the “UTSMed,” which provided general mental health literacy and cognitive behavioral skills. Work engagement was assessed by using the Utrecht Work Engagement Scale at baseline, 1-, and 4-month follow-ups for both intervention and control groups. An exploratory analysis was conducted for a subgroup with low (lower than the median scores) work engagement scores at baseline.

Results
A total of 1,236 workers completed the baseline survey. In the low work engagement subgroup, a total of 313 and 300 participants were allocated to an intervention and control group, respectively. In the high work engagement subgroup, 305 and 318 participants were allocated to an intervention and control group, respectively. The program showed a significant effect on work engagement (t = 1.98, P = 0.048) at the 4-month follow-up in the low work engagement subgroup, with a small effect size (d = 0.17).

Conclusion
A web-based psychoeducation resource of mental health literacy and cognitive behavioral skills may be effective for improving work engagement among individual workers with low work engagement.
Insecta, Hymenoptera, Chalcidoidea, Eurytomidae and Torymidae in Iran
Authors: Fallahzadehse Majid , Narendran Thekke Curuppathe , Saghaei Nazila 
Published: November 2016

A taxonomic checklist of 43 species of Eurytomidae belonging to seven genera, and 41 species of Torymidae belonging to 15 genera, are currently recognized as occurring in Iran. Based mostly on various faunistic survey reports; no eurytomid or torymid species with collection records from Iran have previously been listed. Therefore; we did not intend to confirm identifications of previous studies, except in very obvious cases. A more comprehensive collection-based study is needed to confirm the actual Iranian occurrence of each species listed in this checklist.
Pisces, Characiformes, Characidae, Glandulocaudinae, Mimagoniates barberi Regan, 1907: first Argentinean distribution record
Authors: Mantinian Julia E. , Miquelarena Amalia M. 
Published: November 2016

The current note reports the presence of Mimagoniates barberi at northeastern Argentina. This record represents the southernmost limit for this species and the first country record of the genus.
PENANGKAPAN UDANG GALAH (Macrobrachium rosenbergii) MENGGUNAKAN RAWAI UDANG DI SUNGAI SIAK BAGIAN HILIR, PROVINSI RIAU
Authors: Bahri Syamsul , Saiyani Achmad 
Published: November 2016

Sungai Siak merupakan salah satu daerah penangkapan ikan (fishing ground) yang cukup penting bagi masyarakat nelayan di Provinsi Riau. Sungai Siak mempunyai karakteristik perairan di mana bagian tengah berasosiasi dengan rawa banjiran (floodplain). Perairan bagian hilir dipengaruhi pasang surut air laut dan berair payau bagian hulunya terletak di dataran tinggi berair tawar. Sepanjang aliran sungai menerima aliran beberapa anak sungai dengan karakteristik yang beragam.Udang galah (Macrobrachium rosenbergii) merupakan salah satu sumber daya ikan yang banyak dimanfaatkan. Udang galah mempunyai nilai ekonomis tinggi. Di Provinsi Riau, pasokan udang galah untuk memenuhi kebutuhan konsumen didominansi dari hasil tangkapan di perairan umum. Di Sungai Siak, udang galah dapat ditemukan di bagian hilir sampai hulu sungai.Utomo (2001)mengatakan bahwa siklus hidup udang galah memerlukan dua habitat yaitu perairan air tawar dan payau. Udang galah tumbuh dewasa dan kawin di perairan tawar, dan telur menetas sampai post larva berada di perairan payau.
IDENTIFIKASI JENIS IKAN DI SUAKA PERIKANAN AWANG LANDAS SUNGAI BARITO, KALIMANTAN SELATAN
Authors: Burnawi Burnawi 
Published: November 2016

Barito merupakan sungai besar dengan panjang sekitar 900 km di mana bagian hulunya di Serawak, Negara Malaysia dan batangnya melintas di ProvinsiKalimantan Tengah dan Kalimantan Selatan. Daerah aliran Sungai Baritomempunyai banyak anak sungai, danau, sungaimati (oxbow lake),maupun hutan rawa yang digenangi air (Asyari, 2006). Selain berfungsi sebagai lintasan transportasi air, Sungai Barito juga sebagai penyedia sumber makanan berupa sumber daya ikan bagi penduduk daerah aliran Sungai Barito dan sekitarnya.
PENGUKURAN MORFOMETRIK IKAN BAUNG MUNTI (Bagrichthys macracanthus) DI SUNGAIMUSI
Authors: Pamungkas Yanu Prasetiyo , Tumiran Tumiran 
Published: November 2016

Ikan baung munti adalah salah satu famili dari Bagridae. Mempunyai ciri sungut rahang bawah bagian luar maupun dalam lurus. Berwarna hitam dengan garis putih sepanjang gurat sisi. Sirip lemak panjang dan tidak terikat oleh badan bagian belakang (Kottelat et al., 1993).Dari ikan contoh yang diperoleh diSungai Musi telah ditemukan tiga jenis ikan baungmunti yaitu jenis Bagroides melapterus, Bagrichthys macracanthus, dan Bagrichthys micranodus.Setiap ikan mempunyai ukuran yang berbeda beda, tergantung pada umur, jenis kelamin, dan keadaan lingkungan hidupnya. Faktor-faktor lingkungan dapat mempengaruhi kehidupan ikan antara lainmakanan, pH, suhu, dan salinitas, dengan demikian, walaupun dua ekor ikan mempunyai umur yang sama namun ukuran mutlak di antara keduanya dapat saling berbeda.Ukuran ikan adalah jarak antara suatu bagian tubuh dengan bagian tubuh yang lainnya. Pada tulisan ini akan diinformasikan tentang hasil dari pengukuran morfometrik pada ikan baungmunti jenis Bagrichthysmacracanthus yang hidup di Sungai Musi bagian hilir. Pengukuran morfometrik merupakan
ANALISIS KADAR ORTOFOSFAT DI PERAIRAN WADUK IR. H. DJUANDA PERIODE BULAN MEI 2008
Authors: Kusumaningtyas Dyah Ika , Sukamto Sukamto 
Published: November 2016

Waduk Ir. H Djuanda merupakan suatu badan air yang membendung Sungai Citarum yang beroperasi sejak tahun 1967 dengan luas maksimal 83 km2.Secara administrasi, waduk ini terletak di Kabupaten Purwakarta, Jawa Barat dan ketinggian 111 m dpl. Secaramorfologi,Waduk Ir. H. Djuanda ini dikelilingi oleh pegunungan kapur yang agak gundul (Sarnita, 1981). Waduk Ir. H. Djuanda digunakan oleh masyarakat sekitar sebagai sumber air bersih, tempat pariwisata,dan tempat kegiatan perikanan tangkap maupun budi daya ikan melalui kegiatan karamba jaring apung yang secara langsung dapat meningkatkan perekonomianmasyarakat. Pemanfaatan waduk untuk berbagai kepentingan dimungkinkanmenjadi salah satu sumber masukkan fosfor di perairan.
PENGAMATAN FEKUNDITAS IKAN MOTAN (Thynnichthys polylepis) HASIL TANGKAPAN NELAYAN DARI WADUK KOTO PANJANG, PROVINSI RIAU
Authors: Burnawi Burnawi 
Published: November 2016

Waduk Koto Panjang membendung Sungai Kampar Kanan dan Sungai Mahat yang selesai dibangun pada tahun 1996 pada saat level air tertinggiluas daerah tangkapan air ±3.337 km2 dan luas genangan air 12.400 ha (Anonimus, 1996).Waduk Koto Panjang ini mempunyai potensi yang besar bagi sektor perikanan terutama perikanan tangkap dan budi daya dengan sistem(keramba jaring apung), yang dapat meningkatkan sumber pendapatan bagi masyarakat, menciptakan lapangan kerja, sumber protein hewani, dan tempat obyek pariwisata (Asyari & Burnawi, 2009).Di Waduk Koto Panjang ditemukan 24 jenis ikan yang bernilai ekonomis penting antara lain ikan motan (Thyninichthy polylepis), kapiek (Barbodesschwanefeldii), paweh (Osteochilus haseltii), tapah (Wallago sp.), baung (Mystus nemurus), dan belida (Chitala spp.) (Warsa et al., 2008).
PENANGKAPAN IKAN DENGAN MENGGUNAKAN PENGILAR KAWAT (WIRE POT TRAPS) DI LEBAK LEBUNG LUBUK LAMPAM OGAN KOMERING ILIR, SUMATERA SELATAN
Authors: Bahri Syamsul , Saiyani Achmad 
Published: November 2016

Perairan umum lebak lebung merupakan sumber perikanan darat (air tawar) yang penting bagi Indonesia dan daerah tropika lain, karena bukan sajamerupakan sumber protein hewani yang murah bagi penduduk, tetapi juga merupakan sumber ikan komersial. Lebak lebung merupakan perairan yangairnya mengalir secara berkala serta meluap menggenangi daerah sekitarnya pada musim penghujan dan menyurut pada musim kemarau. Jenis ikan yang hidup di perairan lebak lebung pada umumnya masuk dalam ordo Labyrinthysi dan jenis ikan ini mempunyai alat pernapasan tambahan berupa labirin, sehingga dapat hidup di perairan yang kadar oksigennya rendah dan agak asam.Perairan lebak lebung bukan saja terdapat di Indonesia, akan tetapi juga terdapat di daerah tropika dan sub tropika di dataran Asia, Afrika, dan Amerika Latin. Perairan ini dicirikan dengan adanya sifat musiman yang dapat dilihat dari perubahan tinggi air, luas permukaan, produksi organisme,makanan ikan, pemijahan ikan, sampai pada penangkapan ikan.
AKLIMATISASI BENIH IKAN PATIN (Pangasianodon hypophthalmus) UNTUK PERSIAPAN PENEBARAN IKAN DI WADUK MALAHAYU, JAWA TENGAH
Authors: Romdon Soleh 
Published: November 2016

Aklimatisasi benih ikan adalah waktu yang diperlukan oleh benih ikan untuk beradaptasi dengan lingkungannya yang baru seperti di waduk atau situ.Ikan patin (Pangasianodon hypophthalmus) merupakan jenis ikan konsumsi air tawar, berbadan panjang berwarna putih perak dengan punggungberwarna kebiru-biruan. Ikan patin dikenal sebagai komoditi yang berprospek cerah, karena memiliki harga jual yang tinggi. Hal ini yangmenyebabkan ikanpatin mendapat perhatian dan diminati oleh para pengusaha untuk membudidayakannya (Arifin et al., 1997). Ikan ini cukup responsif terhadap pemberian makanan tambahan. Pada pembudidayaan, dalam usia enam bulan ikan patin dapat mencapai panjang 35-40 cm. Sebagai keluarga Pangasidae, ikan ini tidak membutuhkan perairan yang mengalir untukmendukung pertumbuhan. Pada perairan yang tidak mengalir dengan kandungan oksigen rendahpun sudah memenuhi syarat untuk membesarkan ikan ini. Ikan patin berbadan panjang untuk ukuran ikan tawar lokal, warna putih seperti perak, dan punggung berwarna kebiru-biruan. Kepala ikan patin relatif kecil, mulut terletak di ujung kepala agak di sebelah bawah (merupakan ciri khas golongan catfish). Ikan patin pada sudut mulutnya terdapat dua pasang kumis pendek yang berfungsi sebagai peraba. Tujuan penulisan ini adalah untuk menguraikan pelaksanaanaklimatisasi benih ikan patin di Waduk Malahayu untuk mendukung program pemacuan stok melalui perikanan berbasis budi daya (culture based fisheries).
PENGAMATAN ZOOPLANKTON DI SUNGAI SIAK, INDRA PURA BAGIAN HILIR RIAU, PEKANBARU
Authors: Dwirastina Mirna 
Published: November 2016

Sungai Siak merupakan salah satu sungai terbesar di Indonesia yang mengairi daerah sekitar Kepulauan Riau, Pekanbaru. Seiring dengan waktukeadaan sungai mulai berubah, dengan banyaknya penduduk dan pabrik di sekitar sungai tersebut, Sungai Siak sekarang sudah mulai tercemar baikkarena bahan organik maupun anorganik ataupun bahan kimia. Beberapa hasil penelitian telah membuktikan bahwa Sungai Siak sudah diambangpencemaran (Husnah et al., 2008).Sebagai salah satu indikator pencemaran perairan dapat dilihat dari jenis maupun kelimpahan zooplankton (Fachrul, 2007). Zooplankton merupakanplankton berupa hewan, pada mulanya organisme tersebut diklasifikasikan ke dalam kelompok zooplankton tetapi dengan seiring perkembangan penelitian maka terungkap sifat mikrotrofi maka ada tingkatan yang mampu memproduksi makanan sendiri (fotosintesis). Peranan zooplankton menempati posisi penting dalan rantai makanan dan jaring-jaring kehidupan di perairan (Fachrul, 2007).
MATHEMATICAL MODEL OF WHEELSET OSCILLATIONS WITH INDEPENDENT WHEEL ROTATION IN THE HORIZONTAL PLANE
Authors: Myamlin S. V. , Kirilchuk O. A. , Metyzhenko V. S. 
Published: November 2016

Purpose. The work is devoted to the study of horizontal oscillation and the assessment of the motion stability of a single wheelset with independent wheel rotation, and to the comparison of stability indicators of the typical wheelset and the wheelset with independent wheel rotation. This is connected with the necessity to increase traffic speed of rolling stock, improve road safety and comfort of passengers. Methodology. To achieve this purpose we used the methods of mathematical simulation of railway rolling stock dynamics, as well as the linear algebra methods to assess the stability of solutions of the linear homogeneous differential equations. Findings. To solve the set task the design model of a single wheelset with independent wheel rotation was created. The wheelset is not a single solid body; each of the wheelset axles has a surplus degree of freedom. Thus, we obtained the system with 4 degrees of freedom. The design model allowed to obtain the system of linear homogeneous differential equations describing the oscillations of the represented wheelset in a horizontal plane on a straight track section. On the basis of the computer modeling were calculated the eigenvalues of the differential equation system coefficients and the asymptotic stability analysis of the wheelset motion with independent wheel rotation. The increment and the frequency of fluctuations were compared with similar indicators for the standard wheelset. The authors also discussed non-oscillatory forms of the wheelset motion and the issues of wheelset self-centering on the track. Originality. The result of the work is the mathematical model of the sinuous movement of a single wheelset, in two-dimensional formulation, with independent wheel rotation and the estimate of the dynamic indices during its motion on a straight track section without any irregularities. There were also proposed the ways to ensure the self-centering on the track of the wheelset with independent wheel rotation. Practical value. The developed mathematical model of the single wheelset motion with independent wheel rotation can be used to create the advanced designs of railway running gear of cars.
Electrochemical Behavior of Magnesium and its Alloys in non-Aqueous Solutions
Authors: Kuvancheva A.M. , Nauryzbayev M.K. , Ishkenov A.R. , Kurbatov A.P. 
Published: November 2016

<p>Magnesium and its alloys are widely used in creation of chemical sources of current, because possesses a number of characteristics: highly negative standart potential, low equivalent weight, high melting point, low cost, relative abundance, ease of handling, machining, and disposal, and low toxicity of most its compounds. Therefore study of magnesium behavior and isolation is actually and perspective. However results of researches in this area are separated and have no a general direction. In this connection, the given article supposes by the purpose to generalize last achievements, available in the modern literature in electrochemistry of magnesium and its alloys in non-aqueous media.</p>
Reactions of Chlorine Dioxide with Organic Compounds
Authors: Ganiev I.M. , Timergazin Q.K. , Kabalnova N.N. , Shereshovets V.V. , Tolstikov G.A. 
Published: November 2016

<p>Data on the reactivity of chlorine dioxide with organic compounds from various classes are summarized. Early investigations of the reactions of chlorine dioxide were occurred in aqueous or predominantly aqueous solutions in general, because it used in drinking water treatment and in industry as bleaching agent. However, chlorine dioxide was not used widely as reagent in organic synthesis. In last decades the number of publications on the studying interaction of the chlorine dioxide in organic medium increased. In table presented the rate constants reactions of chlorine dioxide with organic compounds published through 2004. Most of the rate constants were determined spectrophotometrically by decay kinetics of chlorine dioxide at 360 nm. Chlorine dioxide may be used for oxidation of organic compounds, because chlorine dioxide is enough reactive and selective as an oxidant with a wide range of organic compounds based on these reaction rate constants. But the application of chlorine dioxide as reagent in organic synthesis is restrained by the lack of data on the kinetics and mechanism of reactions involving chlorine dioxide, as well as data on the product yields and composition, temperature and solvent effects, and catalysts. The pathways of products formation and probable mechanisms of reactions are discussed in the review.</p>
Simulation of Steam Reforming Tube with Shaped Particles
Authors: Kagyrmanova A.P. , Vernikovskaya N.V. , Zolotarsky I.A. , Smirnov E.I. , Kuzmin V.A. 
Published: November 2016

<p>Shaped catalysts are widely used in steam reforming. A comprehensive mathematical model able to predict and compare performance of different shaped catalysts is developed. The two-dimensional pseudo homogeneous model accounts for heat transfer between the tube wall and catalyst bed, conductivity and diffusivity in the radial direction in the packed bed and intraparticle diffusion. Gas volume changing caused by reaction stoichiometry results in a radial convective mass flux. A verification of the model and simulated performance of different shaped catalysts in steam reforming of natural gas are presented.</p>
Carbon Adsorbents and Catalysts Produced from Worked out Gas Mask Cartridges
Authors: Kartel N.T. , Stavitskaya S.S. , Zhuravsky S.V. , Strelko V.V. 
Published: November 2016

<p>It is offered here the procedure of utilization of gas mask or respirator charge when operation term is expired. This technique enables to get not only high quality active carbon but also its oxidized variety that has properties of polyfunctional carboxylic cationite and catalyst decomposition of hydrogen peroxide (catalysis activity). Structure-sorption properties of the obtained adsorbents are listed below.</p>
Hydropurification and Hydroisomerisation of Butyl-Mercaptan-Alkane Mixes and Diesel Oil Fractions on Alumo-Iron-Molybdenum Catalysts
Authors: Zakumbaeva G.D. , Tuktin B. , Gazizova A.D. 
Published: November 2016

<p>Modified alumina-iron-molybdenum (AIM) catalysts have been studied in hydropurification and hydroisomerization both of butylmercaptan-alkane mixture and diesel oil fractions. It has been shown that the modification of alumina-iron-molybdenum catalysts by zeolites and other additives leads to a significantenhance of their hydrodesulfurization and hydroisomerization activity.</p>
Peran perempuan dalam penggunaan alat kontrasepsi
Authors: Fitriani Anis 
Published: November 2016

Family planning is a program established by government to minimize the population explosion by preventing pregnancy and child birth. Women are naturally able to conceive and give birth so they become the target of higher contraceptive use than men. Women in the Pucangro Village Kalitengah subdistrict in Lamongan regency explained their experiences and knowledge they have in using contraception. This type of research is qualitative phenomenology. In this study, researcher explains knowledge and experiences of women in using contraception. Information obtained through observation of women’s life by conducting interview with five women who use contraceptives. Contraception which used by many people in Pucangro Village, Kalitengah subdistrict, Lamongan regency are injection, pill, implant and steady contraception. Women often change contraception methods to adjust the most suitable type for their body because of the effects of contraception make users uncomfortable. Even so, informants persist in using contraception because they have no other choice. Frequency in changing contraceptive method also due to women's knowledge about contraceptive methods which is critically low, such knowledge is mostly gained throughm experiences from parents and siblings. The partner (husband) are less involved and do not want to know the use of contraception’s partner (wife). Several factors that stimulate contraception usage are knowledge possession, level of education, encouragement from family or partner, and side effect of the contraception itself. Women have the power to determine the type of contraception they prefer but no power to refuse using contraception even though negative effects are most likely to occur.