bluuebunny/crossref_metadata_2025 huggingface dataset:
Risk factors of proximal junctional kyphosis after surgical correction of spinal deformities caused by Scheuermann’s disease
Authors: Sergunin Aleksandr Yuryevich , Mikhaylovskiy Mikhail Vitalyevich
Published: October 2023

Objective. To identify risk factors for the development of Proximal Junctional Kyphosis (PJK) in patients with Scheuermann’s kyphosis operated on using segmental instrumentation.

Material and Methods. The study group consisted of 43 patients (13 females, 30 males), mean age was 17 years, and mean postoperative follow-up was 6 years. Spondylograms with a patient in a standing position performed before surgery, a week after surgery, and at the end of the follow-up period were analyzed. Radiological parameters were studied: cervical lordosis, absolute rotation angle, thoracic entry angle, T1 vertebral body tilt, neck tilt, skull tilt, thoracic kyphosis, thoracolumbar kyphosis, lumbar lordosis, vertebral and pelvic parameters (Pelvic Incidence, Pelvic Tilt, Sacral Slope), sagittal vertical axis, proximal junctional angle (PJA), and length of the posterior spinal fusion.

Results. The mean PJA before surgery was 7° [3°; 8°], immediately after surgery – 10° [8°; 13°], by the end of the follow-up period – 25°[19°; 32°]. The incidence of PJK by the end of the follow-up period was 79.1 % (in 34 out of 43 patients). The initial value of thoracic kyphosis was 77° [72°; 86°], after surgery – 41° [31°; 46°], at the last examination – 43° [35°; 53°]. The inclination of the T1 vertebral body in the sagittal plane before surgery was 39° [30°; 45°], at the stages of follow-up – 33° [22°; 37°] and 39° [27°; 45°]. Some significant predictors were identified. An increase in the inclination of the T1 vertebral body (p = 0.005) by k° is associated with an increase in the risk of PJK by 1.19k [1.08k; 1.37k] times, and an increase of thoracic kyphosis by k° (p = 0.023) – by 1.12k (1.03k; 1.27k) times. The formula for preoperative predicting the likelihood of this complication is: P (PJK) = 1 - 1/(1 + exp (-23.14 + 0.26 × T1 + 0.21 × TK)), where P(PJK) is the probability of proximal junctional kyphosis; exp(z) is the exponential function to the power of z; T1 (T1 vertebral body tilt) and TK (thoracic kyphosis) are preoperative values of variables. Using ROC analysis, the threshold value for predicting PJK was determined to be 74.2 %, that is, the development of PJK was predicted in patients with a PJK probability greater than the threshold value calculated by the model formula. The predictive ability of the multivariate model was tested on the basis of the available initial data with a known final result. The prediction was correct in 41 cases out of 43.

Conclusion. Using the multivariate logistic regression method, two mutually independent multiplicative indicators were determined for predicting PJK with high accuracy (sensitivity 94.1 %, specificity 100.0 %) – inclination of the T1 vertebral body and thoracic kyphosis.
Thoracoscopic microdiscectomy for disc herniation in the thoracic spine: surgical technique and analysis of early results
Authors: Kivelev Juri Vladimirovich , Gaitan Alexey Sergeyevich , Krivoshapkin Alexey Leonidovich
Published: October 2023

Objective. To describe the technique and analysis of early results of thoracoscopic microdiscectomy for disc herniation in the thoracic spine.

Material and Methods. A retrospective single-center study included 19 patients (15 women and 4 men) who underwent thoracoscopic microdiscectomy in 2018–2020. The median age of patients was 45 years (range 21–75 years); the median time from the onset of symptoms to the first visit to a neurosurgeon was 12 months (range 1–152 months). Before admission to the hospital, all patients complained of pain of varying intensity in the thoracic spine and/or along the lateral surface of the chest. Nine (47 %) patients had sensorimotor neurological deficit in the legs. The outcomes of operations were assessed using the modified MacNub scale, and postoperative complications were classified according to the Clavien – Dindo scale. Early results of treatment were evaluated at the first follow-up examination (on average, 2 months after the intervention). Data analysis was performed using the SPSS statistical program (IBM SPSS Statistics, version 27).

Results. The immediate postoperative period was mostly uneventful in 15 (79 %) patients. Four (21 %) Clavien – Dindo grade 1 complications were registered: 1 (5 %) case of purulent discitis, 1 (5 %) pneumonia, 1 (5 %) worsening of sensory disturbances in the leg, and 1 (5 %) deep vein thrombosis of the leg. The average length of hospital stay was three days. Favorable results (excellent, improvement or satisfactory) according to the modified MacNub scale were registered in 16 (84 %) patients in two months after surgery. In three (16 %) cases, the symptoms remained unchanged (unsatisfactory according to the MacNub scale). No deterioration was recorded in any of the cases. Statistical analysis of the data (Fischer’s method, Mann – Whitney U-test) showed that the only prognostic factor affecting the outcome of the operation was the localization of the hernia in the lower thoracic region between the T8 and T12 vertebrae (p = 0.007). Thus, all nine patients with a hernia in the midthoracic region (T4–T8) had a favorable outcome of the operation, in 6 (67 %) of them there were no complaints. In three (30 %) out of 10 patients with a hernia in the lower thoracic region, there was no complete cure. All other factors (gender, age, hernia size, etc.) did not have a statistically significant correlation with the outcome.

Conclusion. Thoracoscopic microdiscectomy can be used in the surgical treatment of herniations of the thoracic spine. Additional studies are needed to confirm the effectiveness and safety of the technique in the long term.
Degenerative changes in the intervertebral joints of the cervical spine after anterior interbody fusion and intervertebral disc arthroplasty
Authors: Eliseev Aleksandr Sergeyevich , Bokov Andrey Evgenyevich , Mlyavykh Sergey Gennadyevich
Published: October 2023

Objective. To study the effect of arthroplasty and anterior interbody fusion in the cervical spine on degenerative changes in the adjacent intervertebral joints.

Material and Methods. A retrospective cohort study included 46 patients (22 with cervical total disc arthroplasy – CTDA, and 24 with anterior cervical discectomy and fusion – ACDF) with symptoms of cervical spondylogenic compression myelopathy and/or radiculopathy. The degree of degeneration of facet joints adjacent to the operated segments was evaluated 12 months after surgical treatment. Degenerative changes in the cervical spine were assessed using CT according to the Okamoto classification. Vidar Dicom Viewer 3.2 software was used to view images and evaluate intervertebral joints. Statistical processing was performed using IBM SPSS Statistics 23. Data were presented as median and 25th and 75th percentiles – Me [Q1; Q3].

Results. The mean age of patients in both groups was 47 [39; 52] years (Mann – Whitney U-test, p = 0.047). In the ACDF group it was 48 [42; 55] years and in the CTDA group – 42 [36; 52] years. Comparison of degenerative changes in the ACDF group before and after treatment (Wilcoxon analysis) showed a statistically significant difference in the cranial (p = 0.023), and  caudal (p = 0.001) joints, with the progression of degeneration degree. In the CTDA group, no difference between pre- and post-treatment degeneration degree (Wilcoxon analysis) was found in either cranial joints (p = 0.157) or caudal joints (p = 0.161).

Conclusion. Surgeries to stabilize spinal segments in degenerative diseases undeniably affect the development of the adjacent level syndrome. However, the use of endoprosthetic technology makes it possible to aggravate the degree of degenerative changes in the intervertebral joints of adjacent segments to a lesser extent.
Neurogenic dysfunction of the lower urinary tract in infectious and inflammatory diseases of the spine: is there a correlation with clinical and radiological variants of myelopathy? Preliminary result of the analysis of a single-center cohort
Authors: Gorbunov Aleksandr Igorevich , Mushkin Mikhail Aleksandrovich , Kaumova Diana Airatovna , Muraviev Alexandr Nikolaevich , Gorelov Andrey Igorevich , Orlova Nadezhda Valerievna , Gorelova Anna Andreevna
Published: October 2023

Objective.To study the relationship between clinical and radiation variants of myelopathy and types of the neurogenic dysfunction of the lower urinary tract in patients with infectious spondylitis.

Material and Methods.A single-center cohort observational study was conducted with the analysis of medical records and a prospective examination of 20 patients with infectious spondylitis complicated by neurogenic dysfunction of the lower urinary tract.

Results.Infectious spondylitis can be complicated by the development of various urodynamic disorders, including neurogenic detrusor hyperactivity (30 %), its combination with detrusor-sphincter dissinergia (30 %) and a decrease in detrusor contractility (40 %). In 50 % of patients, an urodynamic examination revealed an increase in detrusor pressure of more than 40 cm water. There was no connection between the development of any type of lower urinary tract dysfunction and MRI types of myelopathy according to Vendatam, as well as between the level of spinal cord compression and the severity of neurological disorders according to AIS.

Conclusion.The results of the study do not confirm the existence of a relationship between the various characteristics of myelopathy in infectious spondylitis and the results of urodynamic examination. The limitation of the reliability of the results is the small number of observations. Studies with a larger sample are required to assess the relationship between the clinical and radiation characteristics of myelopathy and variants of neurogenic dysfunction of the lower urinary tract in patients with infectious spondylitis.
Osteoplasty of vertebral bone defects caused by pedicle screw loosening using orthobiological approaches: a pilot study of case series
Authors: Basankin Igor Vadimovich , Giulzatyan Abram Akopovich , Gilevich Irina Valeryevna , Gritsaev Ivan Evgenyevich , Tayurski David Aleksandrovich , Porkhanov Vladimir Alekseyevich
Published: October 2023

Objective. To analyze the effectiveness and safety of using an orthobiological product in osteoplasty of bone defects of the vertebrae with simultaneous reosteosynthesis.

Material and Methods. The results of screw augmentation technology using thrombogel-enriched allogeneic bone were studied in a retrospective, single-center, non-randomized study, which included 17 patients (10 women, 7 men) with instability of the hardware in the form of screw loosening and osteolysis around screws. Results within 12 months were followed up in 17 patients (100 %). We compared preoperative and postoperative instrumental data, clinical parameters in dynamics.

Results. The mean age of the patients was 59 (43–75) years. The distribution of patients, according to the primary pathology, was as follows: 11 patients (64.7 %) had a degenerative-dystrophic pathology of the spine, 4 patients (23.5 %) had a traumatic injury, and 2 patients had a kyphotic deformity on the background of Bechterew’s disease (11.8 %). The mean time from primary to revision surgery was 7.06 months (3.1–12.1), mean CRP was 4.48 (0.5–15.0). When observing patients for 12 months, all patients showed a positive trend in the form of a statistically significant regression of back pain according to VAS from 7.0 (6.0; 7.3) to 1.0 (0.0; 1.0) points (χ2 = 47.9, df  3, р < 0.0001). A positive trend was also noted in the form of a decrease in ODI indicators and an improvement in the quality of life of patients from 63.8 (57.1; 69.1) to 3.0 (2.0; 7.5) at 12 months. When comparing the parameters (VAS and ODI), the obtained differences before/after the operation were statistically significant, while these changes have a pronounced correlation. Postoperative CT studies (3, 6, 12 months) showed no instability of the screws.

Conclusion. Osteoplasty of vertebral bone defects and screw augmentation using orthobiological approaches have demonstrated their primary efficacy and safety. Further studies with a large sample size are needed to confirm the obtained results.
Etnobotani Tumbuhan Bahan Pangan di Taman Wisata Alam Gunung Permisan, Kabupaten Bangka Selatan
Authors: Pujinisa Windiarti , Henri Henri , Romdhoni Edi
Published: October 2023

Tumbuhan pangan banyak dimanfaatkan oleh masyarakat tidak terkecuali masyarakat disekitar Taman Wisata Alam Gunung Permisan. TWA Gunung Permisan memiliki lima bukit yaitu Bukit Nenek, Bukit Nangka, Bukit Meninjen Tua, Bukit Meninjen Muda dan Bukit Jering dengan luas ±3.149,69 ha. Tumbuhan pangan dikelompokkan menjadi sayur, buah, makanan pokok, makanan tambahan, minuman dan bumbu masak. Tujuan penelitian ini ialah mengidentifikasi serta menganalisis permanfaatan tumbuhan sebagai bahan pangan berdasarkan pemanfaatan yang digunakan oleh masyarakat di Taman Wisata Alam Gunung Permisan. Penelitian ini dilakukan di Taman Wisata Alam Gunung Permisan, Kabupaten Bangka Selatan. Penelitian ini dilakukan dengan wawancara dan observasi langsung bersama informan kunci dengan menggunakan metode snawball sampling. Adapun hasil penelitian yang telah dilakukan ditemukan 67 jenis dari 33 famili tumbuhan pangan yang dimanfaatkan oleh masyarakat disekitar TWA Permisan. Tumbuhan dengan nilai RFC paling tinggi ialah Durio zibethinus dengan nilai 0,072 dan nilai ICF yang paling tinggi pada kategori buah dengan nilai 0,72. Famili Myrtaceae ialah famili yang paling banyak dimanfaatkan yaitu 10 spesies. Upaya konservasi terhadap tumbuhan pangan yang ditemukan perlu dilakukan untuk menjaga ekosistem yang ada di TWA Permisan.
Valuasi Lingkungan TPA Batu Layang Pontianak
Authors: Diantoro Mohammad Aji , Akbar Aji Ali , Sutrisno Hendri
Published: October 2023

Keberadaan Tempat Pembuangan Akhir (TPA) Batu Layang selain memberikan nilai manfaat bagi masyarakat sekitar juga mengakibatkan pencemaran terhadap air sungai sahang dan air sumur. Pencemaran yang terjadi menyebabkan fungsi dari sumber daya air tersebut terganggu, sehingga perlu dilakukannya upaya optimalisasi pengelolaan dan pengolahan sampah di TPA untuk mencegah atau meminimalisir potensi kerugian ekonomi yang diderita sumber daya air tercemar. Penelitian ini bertujuan untuk mengidentifikasi persepsi masyarakat terdampak, mengestimasi nilai kerugian dan manfaat ekonomi dari keberadaan TPA, serta merumuskan alternatif kebijakan yang tepat untuk mengoptimalisasi pengelolaan dan pengolahan sampah di TPA Batu Layang. Penelitian ini menggunakan metode survei dengan 200 responden secara purposive sampling. Analisis yang digunakan dalam penelitian yaitu analisis indeks variabel, valuasi ekonomi dan analisis Strenght, Weakness, Opportunities, Threats (SWOT). Responden menyatakan bahwa, keberadaan TPA Batu Layang setelah 5 tahun beroperasi cukup mempengaruhi penurunan kualitas dan manfaat air sumur dengan nilai indeks 68,85 dan sangat mempengaruhi penurunan kualitas dan manfaat air sungai sahang dengan nilai indeks sebesar 35,15. Kerugian Nilai Ekonomi Total (NET) sumber daya air tercemar sebesar Rp 5.183.666.040 per tahun dan nilai manfaat ekonomi bagi masyarakat terdampak sebesar Rp 12.016.135.472 per tahun. Strategi dalam jangka panjang yang dapat diterapkan TPA Batu Layang ialah membangun TPS3R disetiap Rukun Warga (RW) dan membangun Bank Sampah disetiap kelurahan di Kota Pontianak, membuat program yang mendorong masyarakat untuk melakukan kegiatan 3R (Reuse, Reduce, Recycle), membangun tempat pembuatan kompos yang lebih luas di area TPA serta perencanaan saluran drainase pada daerah non landfill.
Identifikasi Intrusi Air Laut pada Akuifer Pantai Menganti, Kecamatan Kesugihan, Cilacap, Jawa Tengah
Authors: Putra Doni P. E. , Nisaa Fania An , Susatio Raja , Atmaja Rilo Restu Surya
Published: October 2023

Pantai Menganti di Kecamatan Kesugihan, Kabupaten Cilacap, Jawa Tengah, merupakan salah satu pantai di pesisir selatan Jawa. Air tanah berada pada akuifer pasiran dengan kedalaman sangat dangkal (1-2 m) dari permukaan tanah. Tataguna lahan yang berkembang adalah pemukiman, perkebunan, persawahan, tambak, dan pembangkit listrik tenaga uap (PLTU). Penelitian bertujuan mengidentifikasi intrusi air laut pada akuifer di Pantai Menganti menurut karakteristik fisika-kimia dan kadar ion klorida serta keterkaitannya dengan tataguna lahan. Pengukuran dan pengambilan sampel air tanah dilakukan dengan metode random sampling pada tataguna lahan yang berbeda. Pengukuran karakteristik fisika dan kimia air tanah yaitu pH, daya hantar listrik (DHL), total dissolved solid (TDS)  dilakukan langsung di lapangan sedangkan analisis kadar ion klorida di laboratorium. Penelitian menunjukkan air tanah alami secara umum memiliki karakteristik pH relatif normal, DHL < 1500 µS/cm, TDS < 1000 mg/L, dan kadar ion klorida < 35 mg/L. Terdapat anomali nilai DHL, TDS, dan Kadar ion klorida yang mengindikasikan intrusi air asin khususnya di pesisir bagian timur. Area air tanah yang terpengaruh intrusi air laut diperkirakan sekitar 500 m dari garis pantai serta umumnya berasosiasi dengan pemukiman, tambak, dan PLTU
Efektivitas Ruang Terbuka Hijau (RTH) sebagai Daerah Resapan Air dan Penyimpanan Karbon di Kota Pontianak
Authors: Mahdiyah Utin , Akbar Aji Ali , Romiyanto Romiyanto
Published: October 2023

Penggunaan Lahan Kota Pontianak yang cendurung menjadi kawasan permukiman seiring dengan kemajuan perekonomian menyebabakan ketersediaan Ruang Terbuka Hijau (RTH) menjadi menurun. Kurangnya RTH pada kawasan perkotaan akan menimbulkan berbagai permasalahan seperti hilangnya resapan air dan kuranganya kawasan yang menyimpan karbon penyebab Gas Rumah Kaca (GRK). Upaya pencegahan berbagai permasalahan tersebut perlu dilakukan untuk keberlanjutan Kota Pontianak. Penelitian ini bertujuan untuk mengetahui luasan maupun sebaran RTH yang tersedia di Kota Pontianak dan efektivitas RTH sebagai daerah resapan air serta menyimpan karbon sesuai dengan fungsi RTH. Metode penelitian ini memakai empat metode, yaitu metode yang pertama menggunakan thiessen polygon untuk memperoleh peta curah hujan. Metode kedua menggunakan overlay dan skoring untuk mengetahui potensi resapan air secara alami, potensi resapan air pada RTH, dan potensi resapan air secara aktual. Metode ketiga menghitung simpanan karbon pada RTH menggunakan total luasan potensi RTH, sedangkan metode keempat yang digunakan ialah analisis tetangga terdekat untuk mengetahui persebaran RTH. Hasil dari penelitian ini diperoleh luasan RTH Kota Pontianak seluas 5.714,82 Ha atau 48,29% dengan pola sebaran mengelompok. Efektivitas RTH sebagai resapan air dalam kondisi baik dan normal alami seluas 277,37 Ha atau 2,34% dari total luas Kota Pontianak, dan simpanan karbon di Kota Pontianak sebesar 5.034.877,83 Ton/Th atau 5.034,88 GG/Th. Adaptasi mitigasi perubahan iklim perlu dilakukan untuk mencegah meningkatnya GRK di Kota Pontianak terutama pada kawasan permukiman dengan menerapkan sistem zore run off dan mempertahankan kawasan hortikultura
Analisis Sebaran Konsentrasi Gas H2S dan NH3 serta Dampaknya terhadap Masyarakat di sekitar TPA Batu Layang Kota Pontianak
Authors: Chairiah Anissa , Jati Dian Rahayu , Sulastri Aini
Published: October 2023

Ada beberapa aktivitas manusia yang dapat mencemari udara, salah satunya adalah kegiatan pengelolaan sampah yang ada di TPA. TPA Batu Layang merupakan tempat pemrosesan akhir sampah (TPA) di Kota Pontianak. Sampah yang telah tertimbun dalam jangka waktu tertentu akan mengalami proses dekomposisi yang menghasilkan beberapa gas pencemar, seperti H2S dan NH3. Penelitian ini bertujuan untuk menganalisis sebaran konsentrasi gas H2S dan NH3 di TPA Batu Layang Kota Pontianak yang divisualisasikan dalam bentuk peta menggunakan software ArcGIS 10.3 dengan metode IDW, serta untuk mengidentifikasi dampak gas H2S dan NH3 terhadap masyarakat di sekitar TPA Batu Layang Kota Pontianak yang dianalisis secara deskriptif menggunakan kuesioner. Pengukuran konsentrasi gas H2S dan NH3 dilakukan di empat area pada TPA Batu Layang yaitu, area kantor, area bongkar sampah, sel sampah D dan sel sampah E. Pengambilan sampel udara ambien menggunakan Impinger yang dilakukan sesuai SNI 19-7117.7-2005 untuk parameter H2S dan SNI 19.7119.1-2005 untuk parameter NH3. Pengambilan sampel dilakukan di tiga variasi waktu yaitu pagi, siang dan sore. Wawancara kuesioner dilakukan di dua Kelurahan di Pontianak Utara yaitu RT 05/RW 05 Kelurahan Batu Layang dan RT 01/RW 19 Kelurahan Siantan Hilir dengan masing-masing jumlah responden 17 orang tiap kelurahan. Hasil penelitian didapatkan konsentrasi rata-rata H2S melebihi baku mutu sedangkan NH3 berada di bawah baku mutu. Analisis sebaran konsentrasi gas H2S dengan nilai rata-rata tertinggi (berwarna merah) sebesar 0,255 ppm berada di area sel sampah d dan nilai rata-rata terendah (berwarna hijau) 0,051 ppm di area kantor. Sedangkan untuk gas NH3 nilai rata-rata tertinggi (berwarna merah) sebesar 0,543 ppm berada di area kantor dan nilai rata-rata terendah (berwarna hijau) 0,093 ppm di area sel sampah d. Hasil identifikasi dampak H2S dan NH3 terhadap masyarakat di sekitar TPA Batu Layang yaitu keluhan gangguan pernapasan dengan persentase batuk sebesar 100%, keluar dahak 85,3% dan mengi (napas berbunyi) 17,6%.
Estimation of Weed Biomass as Forage Production under Oil Palm Plantation
Authors: Kumalasari Nur Rochmah , Prasetiyowati Andriyani , Sunardi Sunardi , - Suryahadi
Published: October 2023

Palm oil plantations have the potency to provide forage as a source of energy for livestock. The objective of this research was to estimate the production and quality of weeds under palm plantation as ruminant feed. Identification was conducted to find out information about botanical composition, production and nutritional content to estimate potential forage. The study was conducted using a randomized block design with 2 blocks of 6- and 8-years old palm and 10 sample plots.  The research parameters were botanical composition, weed dominance and diversity, and also forage production potency. The results showed that 19 species from 11 families were found and dominated by gramineae. The weed botanical composition and diversity level was affected by oil palm plantation age. On the 8 years old oil palm plantation, the number of weed species and diversity level were decreased, reaching 10 species and H’ 2.41 while on the 6 years old were 13 species and H’ 3.14.  Based on the type of weed, Paspalum conjugatum P.J. Bergius is a weed that has the potential to be used as the highest forage as ruminant animal feed with an estimated production of 730.42 kg ha-1 of fresh biomash.  The estimation of weed production ruminant forage was dominated by grass that had up to 1.87 ton ha-1 of fresh biomash.
Proses Gabungan Koagulasi-Adsorpsi Menggunakan Material Lokal Tanah Lempung Gambut dan Adsorben Gambut untuk Menyisihkan Warna dan Organik pada Limbah Cair Sasirangan
Authors: Mahmud Mahmud , Mahmud Nadya Ul Haq , Abdi Chairul , Luthfina Nida , Fatimah Anita
Published: October 2023

Pengolahan LCS dengan koagulasi masih menggunakan koagulan anorganik dan belum memenuhi baku mutu untuk warna. Perlu alternatif koagulan organik yang murah dan ramah lingkungan. Pengolahan lanjutan setelah koagulasi yaitu proses adsorpsi juga perlu dilakukan untuk meningkatkan penyisihan warna. Kalimantan Selatan memiliki lahan gambut yang sangat luas, dan di dalamnya terdapat tanah lempung gambut (TLG) yang dapat digunakan sebagai koagulan organik dan gambut sebagai adsorben. Penelitian ini bertujuan untuk menganalisis kemampuan koagulan TLG dan gambut pada proses gabungan koagulasi-adsorpsi dalam menurunkan warna dan organik LCS. Proses koagulasi menggunakan metode Jar-Test dan adsorpsi menggunakan metode batch. Pengujian kandungan organik (UV254) dan warna menggunakan metode spektroskopi UV-Vis, untuk warna diperlukan larutan standar PtCo. LCS diperoleh dari rumah-industri sasirangan di Pemajatan Gambut; TLG dan gambut diperoleh dari Landasan Ulin Kalimantan Selatan. Hasil penelitian menunjukkan bahwa LCS memiliki pH 8,53 atau bersifat basa; warna sangat tinggi 392,4PtCo; bahan organik dalam LCS didominasi fraksi hidrofobik dan berat molekul relatif besar. TLG memiliki pH yang sangat asam yaitu 2,52 dengan pHPZC 2,91. Kondisi operasi terbaik untuk proses gabungan koagulasi-adsorpsi menggunakan koagulan TLG dan adsorben gambut diperoleh pada pH asli 8,35 (tanpa pengaturan), dosis terbaik 20g/L TLG dan 5g/L gambut, dengan penyisihan warna dan organik mencapai 87,5% dan 34,7%. Pada kondisi terbaik parameter pH, warna dan TSS masing-masing 6,21; 76,1PtCo dan 15mg/L dan sudah memenuhi baku mutu. Kondisi operasi terbaik untuk 3 proses gabungan koagulasi-adsorpsi yang lainnya sebagai pembanding, diperoleh pada pH koagulasi 8,53 dengan dosis 20g/L TLG+0,1g/L PAC; 0,5g/L alum+5g/L gambut dan 0,5g/L alum+0,1g/L PAC. Koagulan organik TLG dan adsorben gambut terbukti dapat digunakan untuk mengolah LCS.
Inovasi Manajemen Pengairan pada Usahatani Lahan Kering Di Kawasan Karst Girisubo Gunungkidul dengan Teknik Irigasi Tetes
Authors: Antriyandati Ernoiz , Mahastian Paramaputra Wisnu , Agustono Agustono , Maulana Rifqi Aji , Laia Dea Hagania
Published: October 2023

Manajemen pengairan di wilayah Karst merupakan hal yang sangat penting dalam hal pertanian. Hal ini yang menjadi dasar tujuan penelitian untuk mendesain dan menerapkan teknologi irigasi tetes di lahan karst. Irigasi tetes merupakan mekanisme pengairan yang hemat air dengan efisiensi penggunaan air dengan menggunakan tanaman cabai. Metode penelitian ini menggunakan teknik action research dan exploratory research. Analisis data dilakukan dengan R/C Ratio untuk mengetahui kelayakan usahatani tanaman cabai. Hasil penelitian ini menunjukkan penerapan irigasi tetes dapat menunjang budidaya tanaman cabai di lahan kering pegunungan karst dan juga tumbuh dengan baik serta menghasilkan panen yang cukup menguntungkan. Produksi tanaman cabai memiliki jumlah produksi sebesar 88,2 kg dengan penerimaan Rp1.764.000 dan pendapatan yang didapatkan petani sebesar Rp394.480. selain itu berdasarkan penilaian R/C Ratio usahatani tanaman cabai menggunakan irigasi tetes ini layak untuk diusahakan dengan nilai 1,29.
Pemetaan Daerah Rawan Bencana Tanah Longsor di Wilayah Kecamatan Silo Kabupaten Jember
Authors: Susetyo Jaduk Arief , Astutik Sri , Kurnianto Fahmi Arif , Nurdin Elan Artono , Pangastuti Era Iswara
Published: October 2023

Silo District, Jember Regency is an area with a mountainous topography dominated by relatively steep slopes. Many landslides occurred in the Silo District area. Based on the results of observations, in 2022 to July there have been 8 landslides in the Silo District area. Landslide disasters can be minimized by mapping landslide-prone areas. The mapping method used is a weighted overlay method for each parameter. The landslide parameters used in this study are: parameters of soil depth, rainfall, slope, soil type and land use. The final results of data processing for each parameter in this study will produce a map of landslide-prone areas in Silo District, Jember Regency. . Based on the research results, the landslide vulnerability classes are grouped into four classifications, namely low, medium, high and very high. The results showed that the Silo District was an area with high vulnerability (54%), medium vulnerability (37%), very high vulnerability (9%) and low vulnerability (1%). Mulyorejo Village is the village with the widest very high vulnerability classification in Silo District.
Kajian Status Mutu Air Sungai Akibat Buangan Air Lindi TPA Piyungan di Kabupaten Bantul
Authors: Astuti Farida Afriani , Syafrudin Syafrudin , Susilowati Indah
Published: October 2023

This research was conducted along a tributary that empties into the Opak River in Piyungan District. This study aimed to examine the characteristics of leachate from the Piyungan landfill, river water quality, and the status of river water quality due to the discharge of leachate from the Piyungan landfill. The research method used is a survey method with sampling and field observations. Purposive sampling is used to take river sample points. There are five sample points taken with 15 test parameters used to analyze river water quality, including COD, BOD, TSS, TDS, Zinc (Zn), Iron (Fe), Chromium, Copper (Cu), Lead (Pb), Mercury (Hg), pH, temperature, turbidity, color, and total coliform. River water quality status is obtained by calculating the Pollution Index (IP) of class II quality standard, Governor of DIY Regulation Number 20 of 2008, without the total coliform parameter. Based on the analysis results, the characteristics of the leachate water of the Piyungan TPA have concentrations of BOD, COD, TSS, TDS, and Iron (Fe), which exceed the quality standards of Yogyakarta Special Region Regulation Number 7 of 2016. River water quality shows that parameters BOD, COD, TSS, TDS, Zinc (Zn), Iron (Fe), turbidity, color, and total coliform exceed class II water quality standards regulation of the Governor of the Special Region of Yogyakarta Number 20 of 2008. The highest pollution load in rivers is Total Coliform, BOD, and COD. The status of river water quality from all sample point locations has the status of heavily polluted water (Point S1), moderately polluted (Point S2, S3, S4), and lightly polluted (Point S5). Thus, river water quality around the Piyungan landfill has decreased due to the discharge of leachate from the Piyungan landfill and community activities around the river.
Dinamika Kebijakan dan Aktor dalam Pembentukan Papua Barat Sebagai Provinsi Konservasi
Authors: Fatem Sepus Marten , Samber Ade Olyvia , Marwa Jonni , Boseren Melanesia B.
Published: October 2023

Penelitian ini bertujuan mendeskripsikan proses dan dinamika pembentukan Kebijkan Provinsi Konservasi sejak tahun 2009-2020, mengidentifikasi aktor-aktor yang terlibat dalam proses perumusan Kebijakan Provinsi Konservasi. Penelitian berlangsung selama 2 bulan yakni 10 April-10 Juni 2022 di Kabupaten Manokwari. Data dikumpulkan menggunakan metode wawancara dan analisis dokumen. Jumlah informant dalam kajian ini sebanyak 15 orang. Hasil studi mencatat bahwa kebijakan Provinsi Konservasi awalnya diinisiasi oleh Mantan Gubernur Papua Barat, Abraham O. Ataruri dari tahun 2009-2010 atas dukungan dari lembaga non pemerintah seperti WWF, TNC dan CII. Pembentukan provinsi konservasi terbagi menjadi 3 periode waktu yakni: Periode I- tahun 2010-2015, Periode II-tahun 2016-2017 dan periode III tahun 2018-2020. Tahun 2015, Papua Barat dideklarasikan sebagai provinsi konservasi. Namun, Pasca penetapannya, terjadi kevakuman selama 2 tahun (2015-2017) karena transisi kepemimpinan. Kebijakan provinsi konservasi barulah kembali mendapat dukungan ketika terjadi kepemimpinan Gubernur Papua Barat periode 2017-2022. Salah satu bentuk penguatan bagi inisiatif provinsi konservasi untuk diketahui para pihak, maka dilakukanlah konferensi internasional keanekaragaman hayati dan ekonomi kreatif tanggal 7-10 Oktober 2018. Konferensi ini menghasilkan 14 rekomendasi penting. Konferensi berhasil menghadirkan berbagai pihak termasuk aktor-aktor non pemerintah dalam mendukung pengembangan provinsi konservasi. Berdasarkan hasil pemetaan, terdapat 3 aktor pendukung utama yakni PEMDA Papua Barat, UNIPA dan Lembaga Non Pemerintah (WWF, TNC dan CII). Selanjutnya, aktor pendukung, yaitu Yayasan EcoNusa dan Bentara Papua, yang membantu di tahun 2017-2018 dalam memberikan saran perbaikan atas dokumen PERDASUS. Aktor pendukung lainnya, yaitu aktor yang hanya terlibat di akhir proses pengembangan kebijakan provinsi konservasi, yaitu Yayasan Perdu dan Mnukwar. Aktor non pemerintah diatas terlibat menggunakan sumberdaya manusia, fasilitas maupun dukungan pendanaan yang diperoleh dari mitra kerja, jejaring dan kerjasama baik tingkat nasional dan internasional.
Hubungan Antara Pengetahuan Lingkungan Terhadap Sikap Peduli Lingkungan Mahasiswa Pendidikan Geografi Universitas Khairun
Authors: Rasyid Rusman , Agustang Andi Tenri Pada , Aryuni Vrita Tri , Robo Tamrin
Published: October 2023

This research is a correlation study that aims to determine the relationship between environmental knowledge and the formation of environmental care attitudes of students of Geography Education FKIP Khairun University. The population in this study amounted to 322 people with a sample of 76 people selected. Primary data collection in this study was through the provision of test questions related to environmental knowledge and environmental care attitudes, each of it had 30 question items. The data in this study were analyzed using the SPSS program by analyzing both descriptively through frequency distribution analysis and statistically through product moment correlation analysis. Based on the results of the descriptive analysis, it was found that most of the Geography Education students of Khairun University who became respondents had high environmental knowledge (75%), as well as their environmental care attitude was classified as good (96.05%). Meanwhile, based on the results of the product moment correlation analysis, a significance value of 0.000 was obtained, which was smaller than 0.05 (0.000 < 0.05), which means that there is a significant relationship between environmental knowledge and the formation of environmental care attitudes for Geography Education students at Khairun University.
Studi Kinetika Esktraksi Silika dari Abu Sekam Limbah Penggilingan Padi pada Kabupaten Gowa
Authors: Prameswara Gyan , Diana Sri , Amalia Rezki
Published: October 2023

Padi merupakan sumber dari pangan utama masyarakat Indonesia. Peningkatan populasi penduduk mengakibatkan peningkatan sumber pangan ini. Namun, produksi padi menimbulkan produk samping seperti sekam padi yang belum dimanfaatkan bahkan dibiarkan menumpuk menjadi limbah padat hasil penggilingan padi. Sekam padi mengandung kadar silika yang tinggi, bervariasi untuk lokasi yang berbeda. Kadar silika yang tinggi ini dapat dimanfaatkan sebagai bahan utama sintesis produk yang memerlukan bahan utama silika seperti zeolit. Penelitian ini bertujuan untuk mengetahui pengaruh suhu terhadap ekstraksi silika dari abu sekam padi. Preparasi sampel dilakukan dengan proses pengarangan dan pengabuan pada temperatur 750 oC selama 4 jam yang bertujuan untuk mereduksi material organik dan volatil. Abu sekam padi diekstraksi menggunakan larutan NaOH untuk menghasilkan filtrat Na2SiO3. Rekoveri silika paling tinggi tercatat sebesar 95.59 % pada NaOH 2 N, rasio S/L 10 gram/100 mL, 90 oC dan 200 rpm selama 120 menit. Shrinking core model digunakan untuk mengevaluasi kinetika proses ekstraksi. Didapatkan bahwa model reaksi pada permukaan inti mengontrol proses ekstraksi dengan energi aktivasi sebesar 40.11 kJ/mol. Persamaan kinetika dari proses ekstraksi silika dari abu sekam padi menggunakan NaOH adalah 4907.01 exp (-40.11 kJ/mol / (R.T))t = 1-(1-X)^(1/3).
Upaya Hukum Dalam Penyelesaian Konflik Kejahatan Genosida Antara Warga Dusun Ori dengan Warga Negeri Kariu
Authors: Titahelu Juanrico Alfaromona Sumarezs
Published: October 2023

Tragedi kemanusiaan yang menimpa masyarakat Negeri Kariu, Pulau Haruku, pada 26 Januari 2022 merupakan persoalan pelanggaran HAM berat yang harus diselesaikan secara tuntas dan komprehensif, dengan mengedepankan prinsip kemanusiaan. Penelitian ini bertujuan untuk menganalisis upaya hukum dalam penyelesaian konflik genosida terhadap aksi penyerangan warga dusun Ori terhadap warga negeri Kariu.  Adapun metode yang digunakan yaitu yuridis normatif dengan pendekatan konseptual, hukum, dan kasus. Pengumpulan bahan hukum dengan mengumpulkan berbagai literatur  selain itu juga penulis menggunakan data serta informasi yang tepat sesuai dengan permasalahan dan kemudian dianalisis secara deskriptif analitis. Hasil penelitian ini menyimpulkan bahwa, konflik penyerangan oleh kelompok warga terhadap masyarakat Negeri Kariu bermula dari percekcokan mulut antara dua warga Negeri Kariu dengan warga Dusun Ori dan hal ini telah teratasi setelah dilerai oleh Babinsa dan Bhabinkamtibmas. Namun, ada faktor pemicu yaitu tindak kriminal berupa pemarangan terhadap seorang warga Negeri Kariu di Dusun Ori yang menyebabkan luka serius dan harus dilarikan ke rumah sakit di Pulau Ambon. Upaya-upaya hukum dalam penyelesaian konflik kejahatan genosida yang dilakukan oleh pemerintah Kabupaten Maluku Tengah dan Provinsi  Maluku diantaranya yaitu: upaya pre-emtif, upaya preventif dan upaya represif.
Initial Coefficients and Fekete-Szegő Inequalities for Functions Related to van der Pol Numbers (VPN)
Authors: Murugusundaramoorthy Gangadharan , Bulboacă Teodor
Published: October 2023

The purpose of this paper is to find coefficient estimates for the class of functions

ℳ
N

(

γ
,
ϑ
,
λ

)

consisting of analytic functions f normalized by f(0) = f′(0) – 1 = 0 in the open unit disk

D

subordinated to a function generated using the van der Pol numbers, and to derive certain coefficient estimates for a
2, a
3, and the Fekete-Szegő functional upper bound for

f
∈

ℳ
N

(

γ
,
ϑ
,
λ

)

. Similar results were obtained for the logarithmic coefficients of these functions. Further application of our results to certain functions defined by convolution products with a normalized analytic functions is given, and in particular, we obtain Fekete-Szegő inequalities for certain subclasses of functions defined through the Poisson distribution series.
Complete Monotonicity and Inequalities Involving the k-Gamma and k-Polygamma Functions
Authors: Zhang Ju-Mei , Yin Li , You Hong-Lian
Published: October 2023

In this paper, we mainly present some completely monotonic properties and new inequalities involving the k-gamma and the k-polygamma functions.
The Rational Zero-Divisor Cup-Length of Oriented Partial Flag Manifolds
Authors: Ramani Vimala
Published: October 2023

We compute the rational zero-divisor cup-length of the oriented partial flag manifold

F
˜

(

n
1

,
…
,

n
k

)

\[\widetilde{F}\left( {{n}_{1}},\ldots,{{n}_{k}} \right)\]

of type (n
1,…, nk
), k ≥ 2. For certain classes of oriented partial flag manifolds, we compare the rational zero-divisor cup-length and the

ℤ
2

\[{{\mathbb{Z}}_{2}}\]

-zero-divisor cup-length.
Capitalism and Household Production: A Marxist-Feminist Critique of Social Reproduction Theory
Authors: Quick Paddy
Published: October 2023

Social Reproduction Theory (SRT) takes as its starting point the recognition that household activity in the capitalist mode of production constitutes far more than the production of use values. The activities that take place within households are understood to be part of the entire process of reproduction of society, i.e. social reproduction. The proponents of SRT have stimulated much valuable empirical research on these activities. However, there are major problems in the SRT framework within which these activities are placed. Although presented in the form of a contribution to Marxist theory, SRT contradicts the most basic precepts of this theory. SRT diverges fundamentally from Marxist theory in its use of the term “social reproduction,” and in the related distinctions between “reproductive” and “productive” labor, and between “paid” and “unpaid” labor.
A Unique Type or Variation of Bile Duct Cyst in a 9-Year-Old Girl:A Remarkable Case Study
Authors: Paņina Aleksandra , Zviedre Astra , Laizāns Paulis , Apine Ilze
Published: October 2023

Patients with bile duct cysts require careful radiological assessment of the hepatobiliary system prior to surgical intervention. This clinical case is uncommon with an atypical clinical presentation and radiological findings. According to the most widely used classification of choledochal cysts, this case presents a combination of Type I and Type IV of choledochal cyst (CC) combining the form of extra, intrahepatic bile ducts and cystic duct dilations.
Tecendo sentidos em aulas de Ciências
Authors: Santos Françoária Corrêa dos , Deccache-Maia Eline
Published: October 2023

O presente trabalho faz parte de uma pesquisa de abordagem qualitativa no qual se busca compreender os sentidos de algumas produções de textos de alunos pertencentes ao primeiro segmento do Ensino Fundamental. Nesses escritos se procura entender a leitura como um lugar de produção de sentidos e a escrita em uma perspectiva de autoria, vista como posição do sujeito frente à sociedade sobre as questões sociocientíficas do seu cotidiano. Como aporte teórico-metodológico foram utilizados os fundamentos da Análise de Discurso de vertente francesa, mais especificamente, os estudos sobre a linguagem desenvolvidos por Eni Orlandi no Brasil. As atividades foram desenvolvidas com alunos do quarto e quinto anos iniciais do Ensino Fundamental de uma escola pública. Foram trabalhados alguns temas como mudanças na paisagem e hábito de consumo exagerado de produtos dando origem ao lixo eletrônico. A partir das discussões foram analisadas as produções dos alunos utilizando um dispositivo analítico, desenvolvido pela pesquisadora Eni Orlandi, em três etapas: constituição, descrição e interpretação do corpus discursivo. Alguns gestos de interpretação foram tecidos com destaque para as formas de repetição: a memória discursiva do aluno, o interdiscurso, e os deslocamentos de sentidos. Foi verificado que os estudantes, em sua maioria, utilizaram a repetição histórica dando lugar à constituição de autoria.
SAFETY PROFILE OF DIPEPTIDYL PEPTIDASE-4 INHIBITORS
Authors: Ganeva M.
Published: October 2023

Dipeptidyl peptidase-4 inhibitors (DPP-4 inhibitors) are oral antidiabetic agents commonly used for the treatment of type 2 diabetes mellitus. More than ten years of clinical experience with this group of drugs provides evidence of their efficacy and good tolerability especially in patients at risk of hypoglycemia. DPP-4 inhibitors act by increasing the levels of the incretins glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic peptide (GIP) and thus augmenting glucose-induced insulin secretion. The enzyme DPP-4 degrades plenty of substrates including chemokines, cytokines, and neuropeptides. Thus the inhibition of DPP-4 may affect many biological and pathological processes. Although rarely DPP-4 inhibitors have been reported to induce the development of infections, heart failure, liver injury and pancreatitis. The long-term effects of DPP-4 inhibition on the immune function are still not clarified. The close monitoring of polymorbid patients using DPP-4 inhibitors, and the reporting of possible adverse reactions associated with these drugs is warranted.
Impact of soil composition on maximum depth of wetting in expansive soils
Authors: Alnmr Ammar
Published: October 2023

Expansive unsaturated soils present challenges in construction due to their moisture-induced behavior. This study proposes empirical equations to estimate the maximum wetting depth over time. Laboratory experiments and numerical analyses using SEEP/W software investigate wetting depth considering time and sand content in coastal and inland regions. Results reveal the significant influence of sand content on maximum soil moisture depth, emphasizing a recommended content above 30% to mitigate heave. The equations offer practical tools for assessing wetting depth, accounting for temporal and spatial variations. This research highlights the importance of wetting depth in addressing soil-related concerns and provides a foundation for further exploration of related factors.
Hysteresis damping ratio for moment steel frame evaluation using DDBD
Authors: Sultan Hussein Kareem
Published: October 2023

The main purpose of this paper is to propose a model for estimating the hysteresis damping ratio of moment steel frames and compare them with the results obtained using direct displacement-based design. In this study, different models of steel bending frames were examined by using several type of analysis to obtain this ratio. Thirty-steel frame models with 3, 6, 9, 12, and 15 floors and 3 and 6 bay with 6 m span length were analyzed and evaluated. The results showed that the equivalent damping ratio at the level of safety based on Jacobsen and Jennings, and the values of the equivalent damping relationships according to FEMA-440 vary from the empirical formula proposed in displacement-based design-2012. Therefore, in the ductility domain the exponential relationship form was more consistent with the results used. A new formula was proposed to calculate the hysteresis damping ratio, and it is more accurate than the empirical formula proposed in displacement-based design-2012.
Effect of spirulina (Arthrospira platensis) powder addition on nutritional and sensory attributes of chicken mortadella
Authors: M. El-Anany Ayman , A. Althwab Sami , Alhomaid Raghad M. , F. M. Ali Rehab , M. Mousa Hassan
Published: October 2023

The main objective of the present investigation was to evaluate the nutritional and sensory impacts of mortadella supplemented with various levels of Spirulina (Arthrospira platensis) powder (SP). Spirulina powder was investigated for its chemical composition, energy value, micronutrient concentration (mg/100 g), and functional qualities. The total amount of carotenoids, phenolics, flavonoids and antioxidant activity were assessed in chicken breast flesh and SP. Different SP (0–5.0%) proportions were integrated to mortadella recipes. The formulated mortadella samples were investigated for their proximate composition, mineral content, total carotenoids, total phenolics, total flavonoids, antioxidant activity, and sensory properties. SP possesses proteins, carbohydrates, crude fiber, ash, and lipids at 63.70, 15.84, 7.60, 7.49 and 5.37 g/100 g of dry sample, respectively. Water absorption capacity (WAC) and oil absorption capacity (OAC) of SP were 1.77 g and 1.65 mL/g of the sample, respectively. The results of the current study revealed that the antioxidant activity and total phenolic content of SP were significantly higher than those of chicken breast by 71.29- and 15.38-fold, respectively. Crude protein content of the mortadella control sample (SP0) was 13.58%, which increased to 14.17%, 14.72%, 15.33%, 15.95% and 16.49% for mortadella samples enhanced with 1%, 2%, 3%, 4% and 5% SP, respectively. Calcium, phosphorus, potassium, sodium, magnesium, iron, zinc, and selenium contents in mortadella samples, partially replaced with 5% SP, were approximately 2.27-, 1.21-, 1.28-, 1.02-, 1.46-, 3.91-, 1.21- and 1.08-fold higher, respectively, compared to the control sample without SP addition. The highest levels of total carotenoids, total phenolics, total flavonoids and antioxidant activity were found in the mortadella samples integrated with 3%, 4% and 5% SP. In contrast, the control sample and those supplemented with 1% and 2% SP were absolutely low in these constituents. The highest results (8.06–8.07) for overall acceptance were observed in mortadella samples with 2% and 3% SP.
Palliative care in nursing training: higher education course coordinators’ perception
Authors: Gonçalves Rafaella Guilherme , Oliveira Luciane Paula Batista Araújo de , Silva Carlos Jordão de Assis , Elias Tatiana Maria Nóbrega , Nogueira Isadora Lorenna Alves , Menezes Rejane Maria Paiva de
Published: October 2023

ABSTRACT Objectives: to analyze undergraduate nursing course coordinators’ perception about nursing training in palliative care. Methods: a descriptive study, with a qualitative approach and thematic content analysis, carried out with coordinators of nursing courses in Higher Education Institutions in Rio Grande do Norte. Results: three thematic categories emerged: Nursing training in palliative care; Potentialities for teaching palliative care; and Challenges of teaching in palliative care. The coordinators described as potentialities: transversality, theoretical and practical approach, optional subject, university extensions, interdisciplinarity and transdisciplinary approach, and as challenges: biomedical model in health education and insufficient professor training. Final Considerations: palliative care teaching in the researched institutions in the nursing education process is approached in an incipient and fragmented way, and almost always without having a specific curricular component on the subject, being present as one of its contents.