<p class="E-JOURNALTitle">Penelitian ini bertujuan untuk menghasilkan bahan ajar dan instrumen penilaian IPA tema “Indahnya Negeriku” buku guru dan buku siswa kelas 4 Kurikulum 2013 yang layak dan efektif. Penelitian ini merupakan penelitian dan pengembangan. terdiri atas sembilan tahap, yaitu: (1) studi pendahuluan ,(2) perencanaan,(3) pengembangan produk awal, (4) uji coba awal, (5) revisi untuk menyusun produk utama, (6) uji coba lapangan,(7) revisi untuk menyempurnakan produk hasil uji coba lapangan,(8) uji pelaksanaan lapangan, dan (9) revisi produk final. Hasil penelitian sebagai berikut. (1) Kelayakan penilaian ahli materi belajar IPA dengan kriteria Sangat Baik, uji coba terbatas dengan kriteria Sangat Baik dan uji coba pelaksanaan lapangan dengan kriteria Sangat Baik, hasil penilaian ahli Instrumen Penilaian IPA dengan kriteria Baik, uji coba terbatas dengan kriteria Sangat Baik dan uji coba pelaksanaan lapangan dengan kriteria Sangat Baik. (2) Efektifitas produk pengembangan perhitungan <em>gain score</em> mengetahui aspek pengetahuan (<em>knowledge</em>) diperoleh indeks gain sebesar 0,80 dengan kategori Tinggi, sedangkan aspek sikap (<em>atittude</em>) dan keterampilan (<em>skill</em>) dengan observasi menunjukan hasil yang positif.</p><p class="E-JOURNALAbstrakKeywords"><strong>Kata kunci</strong>: pengembangan, bahan ajar, Instrumen Penilaian IPA, Kurikulum 2013.</p><p> </p><p class="E-JOURNALTitleEnglish"><strong>DEVELOPMENT OF LEARNING MATERIAL AND SCIENCE ASSESSMENT OF INSTRUMENTS ON THE THEME MY BEAUTIFUL COUNTRY THE FINALIZATION OF TEACHER BOOK AND STUDENT CURRICULUM 2013</strong></p><p class="E-JOURNALTitleEnglish"><strong><em>Abstract</em></strong></p><p class="E-JOURNALAbstractBodyEnglish">This study aims to produce learning material and Science assessment of instruments on the theme “My beautiful country” for the Finalization of Teacher Book and Student Book Grade 4 of Curriculum 2013 which is suitable and effeetive. This was a research and development (R &amp; D) study consisting of nine stages, namely: (1) preliminary studies, (2) planning, (3) early product develop-ment, (4) early trials, (5) revision to draft the main product, (6) field tryout (7) revisions to enhance the results of field trials of products, (8) field impelementation testing and (9) revision of the final product.The results show (1) It is shown on the assessment of the feasibility study materials science experts which obtained an average value of 4.44 with the criteria Very Good, limited trial gained an average value of 4.53 with the criteria Very Good and piloted the field obtained average values 4.80 with criteria Very Good, whereas the results of expert assessment of Science assessment of instruments obtained an average value of 3.92 with the criteria Good, limited trial gained an average value of 4.33 with the criteria Very Good and piloted the field with an average value 5 with the criteria Very Good. (2) The effectiveness of the product development is shown in the calculation of the gain score to know the aspects of knowledge that obtained an index gain of 0.80 with High category, while aspects of attitude and skills with observation show positive results.</p><strong>Keywords</strong>: development, learning material, science assessment of instruments, Curriculum 2013

Abstract. The use of plastic waste as coarse aggregates in concrete is part of efforts to reduce environmental pollution. In one hand the use of plastic as aggregates can provide lighter weight of the concrete than concrete using natural aggregates, but on the other hand bond between plastic coarse aggregates and hard matrix give low concrete compressive strength. Improvement of the bond between plastic coarse aggregate and hard matrix through a sand coating to plastic coarse aggregate whole surface is studied. Sand used to coat the plastic aggregates are Merapi volcanic sand which are taken in Magelang. Three mixtures of polypropylene (PP) coarse plastic aggregates, Cimangkok river sand as fine aggregates, water and Portland Cement Composite with a water-cement ratio of 0.28, 0.3 and 0.35 are conducted. Compression test are performed on concrete cylindrical specimens with a diameter of 10 cm and a height of 20 cm. The results in general show that concrete specimens using plastic aggregates coated with sand have higher compressive strength compared to those of concrete specimens using plastic aggregates without sand coating. The bond improvement is indirectly indicated by the betterment of concrete compressive strength.

The shear key is an important part of a precast segmental concrete bridge. Aside from its function of contributing to the distribution of shear force from one concrete segment to another, it helps to join precast concrete segments to become a complete bridge structure and provide continuity of movement for vehicles and pedestrian traffic. This numerical study discusses the behavior of a full-scale shear key connection without epoxy joining two concrete blocks representing segmental precast concrete at which two external forces load the blocks. Ferro Casting Ductile (FCD) is used as the metal shear key material where the shear key consists of two parts, a male and a female shear key. Numerical simulation is conducted using the ANSYS academic package, with nonlinear analysis implemented accordingly. The appropriate constitutive materials in relation to the numerical program, both for concrete and FCD, are taken from the appropriate literature. Two criteria are employed in the study; failure of the concrete block and yielding of the shear key that follows the von Mises criterion. Shear key connection system capacity is evaluated by applying different magnitudes of horizontal force. The validation of two numerical simulation studies is conducted by two experimental programs that cover laboratory experimentation of full-scale shear keys connecting two concrete blocks. The numerical and experimental results produce an almost similar relation of shear stress at the male shear key and vertical displacements of the upper block relative to the lower concrete block. Finally, a contour of shear key shear stress as a function of the different magnitudes of equivalent prestressing and different quality of concrete compressive strength is proposed.

Kejahatan yang dilakukan oleh kelas bawah (kejahatan jalanan) terjadi karena tekanan ekonomi dari masyarakat kelas bawah, dan karena proses pengasingan yang melonggarkan ikatan sosial di antara komunitasnya. Penelitian ini bertujuan untuk menganalisis peran Tim Anti Kejahatan di Kepolisian Surabaya untuk pencegahan kejahatan jalanan. Penelitian ini menggunakan metode kualitatif. Hasil penelitian menunjukkan bahwa karakteristik kejahatan jalanan yang terjadi di Kota Surabaya berupa pencurian dengan kekerasan (curas), pencurian kendaraan bermotor (curanmor) dan pencurian dengan pemberatan (curat). Peran Tim Anti Bandit Sat Reskrim Polrestabes Surabaya yaitu: pertama, upaya penal. Upaya penal dengan cara melakukan kerjasama dengan penyidik unit tingkat Polsek, kemudian melakukan analisis data residivis (orang yang melakukan kejahatan kembali setalah bebas dari hukuman). Kedua, upaya non penal,  upaya non penal dilakukan dengan cara preemtif (dilakukan dengan bimbingan, pembinaan dan penyuluhan mengenai kejahatan dan cara untuk mewaspadainya atau mencegahnya) dan dan preventif (dilakukan dengan membuat pos-pos penjagaan dan kegiatan patroli rutin di tempat rawan kejahatan). Peran Tim Anti Kejahatan Polisi Surabaya adalah upaya pidana dan non pidana. Hambatan tim adalah kendala internal dan eksternal. Solusi untuk meningkatkan peran Tim Anti-Kejahatan dalam mengatasi kejahatan jalanan adalah penambahan sepeda motor untuk tugas, penambahan anggaran operasional dan mengeluarkan Formasi Pesanan Tim Anti Kejahatan.

Nutrition problems in infants are still a public health problem that is often found in Indonesia. Malnutrition due to lack of breast milk has not been resolved, and the prevalence of nutritional problems is starting to increase. Composition of ASI contains essential nutrients that are sufficient for the baby even though the mother is in a state of malnutrition and is able to overcome infection through phagocyte and immunoglobulin cell components. Moringa leaves are proven to increase the nutrition of breast milk, containing Amino Acid and high enough protein that can improve the quality of breast milk. The purpose of this study to determine the effectiveness of Moringa leaf powder in increasing the production of exclusive breastfeeding and increasing immunoglobulin A (Ig.A) in infants. This research uses quantitative research with quasi-experimental method with a pre-post test design research design. The sample in this study was breastfeeding mothers with lack of milk production. The number of respondents in this study were 60 respondents breastfeeding mothers who were divided into control groups and treatment groups. Analysis of research results using the Wilcoxon test. Tha result showed that value of Zcount = 6.600> Ztable = 1.645 and p-value = 0.003 (<0.05). Based on the results of this analysis it can be concluded that there is an effect of the effectiveness of Moringa leaf powder on increasing the production of exclusive breastfeeding and immunoglobulin A (Ig.A) in infants.