bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Potensi LKS PJBL Berbasis STEAM pada Pembuatan Indikator Asam Basa Berbahan Sayuran untuk Melatih Kreativitas Berdasarkan TCOF
Authors: Jannah Namaarikul , Wahyu Wawan , Suryatna Asep
Published: July 2024

Penelitian ini bertujuan untuk memperoleh LKS model Project-based Learning (PjBL) berbasis Science-Technology-Engineering-Arts-Mathematics (STEAM) untuk mengajarkan kreativitas pada pembuatan indikator asam basa berbahan sayuran berdasarkan TCOF (The Teaching for Creativity Observation Form). Metode penelitian yang digunakan adalah kualitatif deskrpitf dengan desain penelitian design research. Partisipan penelitian ini melibatkan 20 orang siswa dari salah satu SMA Negeri di Kabupaten Bandung Barat dan 3 orang observer. Instrumen yang digunakan yaitu TCOF, di mana penilaian kelayakannya dilakukan dua kali yaitu saat guru merencanakan pengajaran kreativitas melalui penilaian perencanaan desain LKS dan saat guru melaksanakan pengajaran kreativitas melalui observasi praktik guru di kelas menggunakan LKS dalam mengajar untuk kreativitas. Berdasarkan TCOF, potensi LKS dinilai berdasarkan empat kategori dan 23 aspek. Hasil uji berdasarkan tinjauan TCOF berkategori tinggi, dengan rentang 2.34-3.00 untuk hasil penilaian perencanaan maupun penggunaan LKS. Namun, pada perencanaan LKS, rata-rata skor setiap kategori yang paling tinggi diperoleh untuk kategori C dan skor yang paling rendah diperoleh untuk kategori D skor 2.83 dan 2.88. Sedangkan pada penggunaan LKS, rata-rata skor setiap kategori yang paling tinggi diperoleh untuk kategori B dengan skor maksimal 3, dan skor yang paling rendah diperoleh untuk kategori A sebesar 2,78. Secara keseluruhan, potensi LKS berdasarkan TCOF pada saat guru melaksanakan pengajaran kreativitas yaitu saat penggunaan LKS termasuk kategori tinggi dan dapat disampaikan bahwa LKS sangat layak untuk mengajarkan kreativitas dan tidak perlu direvisi. Oleh karena itu, LKS Model PjBL berbasis STEAM dalam penelitian ini berpotensi untuk mengajarkan kreativitas.
EFEKTIVITAS PENAMBAHAN SERAT POLYPROPYLENE TERHADAP KUAT LENTUR BETON GEOPOLIMER dengan SUPERPLASTICIZER
Authors: Raihan Rafli Putra , Istiqomah Istiqomah , Kudwadi Budi , Batubara Ben Novarro
Published: July 2024

Geopolymer concrete is concrete composed of a mixture of coarse and fine aggregate without Portland cement binder.  Fly ash is used as a substitute, because it contains a lot of silica and alumina. Geopolymer concrete has good strength and durability, but concrete also has disadvantages, namely brittleness, workability and often cracking due to tensile loads. Superplasticizer (SP) is used at 2% of fly ash weight to improve workability. The SP used is Sika viscocrete 1003. The addition of polypropylene fiber is one way to overcome brittle properties and the appearance of fine cracks in concrete. In this paper using Sika fiberforce 48mm polypropylene fiber which has a tensile strength of 465N/mm2(MPa) at a dose of 0%, 0.5%, 1%, 1.5% and 2%. The alkaline activator used is a mixture of NaOH and Na2SiO3 solutions. The molarity of the NaOH solution used is 8M with a ratio of NaOH/Na2SiO3 2: 3. From the test results, it is known that the influence of polypropylene fiber is effective for increasing the bending strength of geopolymer concrete. The bending strength value of geopolymer concrete with the addition of polypropylene fibers increased by 60.19%. The polypropylene fiber content will be maximum at a percentage of 0.5% of the total volume of the mixture.Keywords: Fiber, Flexural Strength, Fly Ash Geopolymer Concrete, Polypropylene, Superplasticizer
OPTIMASI BIAYA DISTRIBUSI MATERIAL BATAKO DENGAN METODE NORTH WEST CORNER DAN STEPPING STONE PADA PERUMAHAN DI KOTA AMBON
Authors: Titahena Nuh Christofany , Sangadji Fauzan A. , Buyang Christy Gery
Published: July 2024

In construction projects, distribution costs for material procurement support the design process of a projects and are also very influential and determine project planning. It is also necessary to utilize costs as optimally as possible to anticipate losses to the company due to the problem of distributing material from the supply to the projects location. In a project, materials needed in large quantities cannot always be met by just one material source. Because of this, several material sources are needed to meet the needed to meet the needs of a project, for this reason this research was carried out using two transportaastion methods, North West Corner fot initial solution and Stepping Stone for the optimum solution. With the aim of calculating material distribution costs to find optimal prices from galunggung, suli banda, and passo to housing demand locations in Ambon City, namely kusu-kusu, suli and upper halong. From the results of the above topic, it can be concluded that optimizing the distribution costs of brick material to housing in Ambon City using th initial North West Corner method obtained a distribution cost of Rp. 349,200.000 and using and advanced method, namely Stepping Stone which has been optimized, resulting in a cost of Rp. 274,655,000 this results in savings of Rp. 74,545.000.Keywords:Cost Optimasion, Housing, Material Distribution, North Westh Corner, Stepping Stone,
Development of a POS System with Computer Vision for Automated Retail Checkout
Authors: Zainal Nasharuddin ,   Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, Bukhori Muhammad Faiz , Lemi Gordon Aeisha Danella , Mustaza Seri Mastura , Ismail Abdul Halim ,   Center for Engineering Education Research, Universiti Kebangsaan Malaysia,   Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia,   Center for Engineering Education Research, Universiti Kebangsaan Malaysia,   Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia,   Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia,   Pusat Pengajian Citra Universiti, Universiti Kebangsaan Malaysia
Published: July 2024

A Point-of-Sale (POS) is a computerized system of hardware and software utilized by businesses to complete sales transactions. In conventional POS setups, cashiers manually scan individual product barcodes, before processing the totals. This manual procedure is laborious and often leads to long queues and waiting times, especially during peak hours, ultimately affecting customer experience and retention. This work seeks to automate the product scanning procedure with a computer vision approach, thereby expediting the sales process. An efficient YOLOv4 object detection model was trained on a custom dataset of common products found in Malaysian retail stores. 550 images were initially acquired and split 80:20 into training and validation groups; further augmentation tripled the size of the training group to 1,320 images. Training was conducted for 10,000 epochs, at 0.0013 learning rate. During training, the model achieved 99.19% mAP, 87.42% average IoU, and a 0.40 average loss. Subsequently, the model was deployed on a low-power single-board computer running a transaction notification program. To evaluate its performance, 10 instances of shopping carts with random product combinations were processed using the system. The system autonomously identified and quantified all products through its video feed, generating itemized bills in real-time. Fixed with a 0.9 confidence threshold, the system yielded a 98% average accuracy across all object classes. On average, transactions, from product detection to delivering the itemized bill to the system administrator, were processed in just 14 seconds. This POS system holds potential for integration with unmanned stores, offering a seamless shopping experience.
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Authors: Ramachandran Tayaallen ,   Space Science Centre (ANGKASA), Institute of Climate Change (IPI), Universiti Kebangsaan Malaysia,43600 Bangi, Selangor, Malaysia., Iqbal Faruque Mohammad Rashed ,   Space Science Centre (ANGKASA), Institute of Climate Change (IPI), Universiti Kebangsaan Malaysia,43600 Bangi, Selangor, Malaysia.
Published: July 2024

This work investigates the effects of multi-layered metamaterial design for absorption application at satellite frequency. This is because, the adopted Ka-band frequency is very useful for current technology which can be used in highresolution, close-range targeting radars, military aircraft, space telescopes, commercial, and wireless point-point microwave communication systems. Hence, this work focused on producing a compact design by adopting the optimisation method. Four square-shaped and two circular-shaped metamaterial rings were designed on 0.25 mm substrate material. Furthermore, the properties of the proposed metamaterial were discovered by adopting Computer Simulation Technology. This analytical simulation was performed for a frequency range between 27 and 40 GHz. On the other hand, several design analyses were investigated to gain an optimal metamaterial design structure for the proposed applications. For instance, unit cell selection analysis, reflection coefficient and absorbance analysis of the multi-layer metamaterial. Moreover, the proposed unit cell metamaterial manifests double resonance frequencies for reflection and transmission coefficients approximately at 27.31 GHz, 33.40 GHz and 30.56 GHz, 38.23GHz, respectively. The increment of layers on the proposed unit cell structure revealed unique responses. For example, the double multilayer metamaterial manifests similar dual resonance frequencies as the unit cell design but gains excellent magnitude values of more than -10. Moreover, the absorbance of the three distinct layer metamaterials, likely double, triple and quadruple layers were analysed as well in this work. Overall, the proposed compact metamaterial absorber exhibits unique behaviours for Ka-band satellite frequency applications.
Metamaterial Inspired Dual Port Dual Circular Polarization Antenna for Small Satellite Communication System
Authors: Mohd Sahar Norsuzlin ,   Space Science Centre (ANGKASA), Institute of Climate Change (IPI), Universiti Kebangsaan Malaysia, Malaysia, Hoque Ahasanul , Alam Touhidul , Islam Mohammad Tariqul ,   Space Science Centre (ANGKASA), Institute of Climate Change (IPI), Universiti Kebangsaan Malaysia, Malaysia,   Space Science Centre (ANGKASA), Institute of Climate Change (IPI), Universiti Kebangsaan Malaysia, Malaysia,   Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering & Built Environment
Published: July 2024

This paper presents a dual circular polarized C-band patch antenna for a small satellite communication system The antenna consists of two different annular patch structure with three split ring resonators. The antenna is designed considering space environment and the smallest form of satellite structure. The antenna is fabricated space qualified substrate material Rogers 5880 with overall dimension of 85.22× 48.59 × 1.575 mm3. The antenna achieves circular polarization at 5.1 GHz and 5.2 GHz frequency for port 2 and port 1, respectively. The split ring resonator structures contribute to enhance antenna gain and axial beamwidth. Realized gain of 7.29 dB and 7.33 dB are achieved at 5.1 GHz and 5.2 GHz operating frequency with 3dB axial beamwidth of 170 ̊ and 153 ̊ , respectively. Antenna size and performance show that the antenna can be a potential candidate for smooth operation of small satellite communication system.
Characterization of Bio-Retted Kenaf (Hibiscus Cannabinus L.) Bast Fibre
Authors: Ya Zalina ,   Advanced Manufacturing Research Group (AMReG), Department of Mechanical & Manufacturing Engineering, Universiti Kebangsaan Malaysia, Selangor, Malaysia, Sulong Abu Bakar , Mohd Radzuan Nabilah Afiqah ,   Department of Mechanical Engineering, German-Malaysian Institute, Kajang, Selangor, Malaysia,   Advanced Manufacturing Research Group (AMReG), Department of Mechanical & Manufacturing Engineering, Universiti Kebangsaan Malaysia, Selangor, Malaysia,   Advanced Manufacturing Research Group (AMReG), Department of Mechanical & Manufacturing Engineering, Universiti Kebangsaan Malaysia, Selangor, Malaysia
Published: July 2024

The bio-retted kenaf (Hibiscus cannabinus L.) bast fibres offer significant advantages over synthetic fibre regarding their being lightweight, environmentally friendly, and cheap. During the characterization procedure, the chemical composition as well as the physical, thermal, mechanical, crystallinity, and morphological properties of bio-retted kenaf (Hibiscus cannabinus L.) bast fibre were assessed. The chemical composition analysis of the bioretted bast fibre of kenaf (H. cannabinus L.) revealed that it contained a significantly high proportion of cellulose (58.72%). While, in the tensile test, the bast fibre of bio-retted kenaf (Hibiscus cannabinus L.) exhibited an average tensile strength of 3876 ± 1122 MPa and modulus of elasticity of 577 ± 177 GPa. X-ray diffraction (XRD) analysis of the bio-retted kenaf (Hibiscus cannabinus L.) bast fibre revealed its crystalline size to be 19.65 nm and crystallinity index to be 68.62%. The thermogravimetric analysis (TGA) performed on the bast fibre of kenaf (Hibiscus cannabinus L.) revealed that it maintains a thermal stability of 240°C. The scanning electron microscope (SEM) was employed to examine the fibre’s morphology. The fibre exhibited flaws and a smoothed surface, as determined by the morphological evaluation. The utilisation of bio-retted bast fibre derived from kenaf (Hibiscus cannabinus L.) as a reinforcing agent in applications involving elevated temperatures exhibited encouraging outcomes.
Effect of Veneering Technique on Shear Strength of Porcelain Veneered Zirconia (PVZ): Finite Element Analysis
Authors: Abdul Hadi Nurul Hannani ,   Department of Mechanical and Manufacturing Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia, Jamadon Nashrah Hani , Meor Ahmad Meor Iqram , Amril Muhammad Sufiyan , Aminuddin Nurul Shayhiera , Yew Hsu Zenn ,   Department of Mechanical and Manufacturing Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia,   Center for Materials Engineering & Smart Manufacturing (MERCU), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia,   Department of Mechanical and Manufacturing Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia,   Department of Mechanical and Manufacturing Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia,   Department of Mechanical and Manufacturing Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia,   Department of Prosthodontic, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
Published: July 2024

Veneering technique is discussed as one of the reasons for chipping of porcelain veneered zirconia (PVZ) restorations, which impacts their longevity and success. This study aims to evaluate the effect of veneering technique; heat-pressed, and hand-layered, on the shear bond strength of PVZ ceramics through finite element analysis. Six cylindrical bilayer material model configurations were analysed; two types of zirconia, IPS e.max® ZirCad (Z) and Luxen Zr (L) and each veneered with three porcelain types, Shofu Vintage ZR (V), IPS e.max® Ceram (C), IPS e.max® Zirpress (P), with dimensions of (10 mm x 1.2 mm) and (5 mm x 3 mm), respectively. The force for threedimensional model configurations were fixed at 5 kN. The results show that heat-pressed groups (ZP and LP) have slightly higher bond strength value 49.12 MPa and 49.03 MPa, compared to hand-layered groups (ZC, LC, ZV, and LV), measuring 48.87 MPa with 0.5% difference at maximum. Bond strength in MPa underwent variance analysis, revealing a significant influence of ceramic material on mean values (p = 0.0017). Thus, the highest stress concentrations occur at the edges of the load application points, gradually decreasing as the distance from the point of load application increases. Results indicate that heat-pressed technique is better than hand-layered veneering technique due to its effectiveness in strong adhering veneer to the zirconia core.
Integration of Grid Array Antenna with Dye Sensitised Solar Cell (DSSC)
Authors: Mohd Ali Nur Izzati ,   Fakulti Kejuruteraan & Teknologi Elektronik, Universiti Malaysia Perlis, Kampus Pauh Putra, 02600 Arau, Perlis, Malaysia, Misran Norbahiah , Mansor Mohd Fais , Mohd Sahar Norsuzlin , Jamlos Mohd Faizal , Hussin Eryana Eiyda ,   Centre of Excellence for Advanced Communication Engineering (ACE), Universiti Malaysia Perlis, Arau, 02600, Perlis, Malaysia,   Jabatan Kejuruteraan Elektrik, Elektronik & Sistem, Fakulti Kejuruteraan & Alam Bina, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia,   Jabatan Kejuruteraan Elektrik, Elektronik & Sistem, Fakulti Kejuruteraan & Alam Bina, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia,   Pusat Sains Angkasa, Institut Perubahan Iklim, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia,   Fakulti Teknologi Kejuruteraan Elektrik & Elektronik, Universiti Malaysia Pahang, Kampus Pekan, 26600 Pekan, Pahang, Malaysia,   Faculty of Engineering, UCSI University, UCSI Heights, Cheras, 56000, Kuala Lumpur, Malaysia
Published: July 2024

Wireless communication systems require electrical energy to operate and function. Whereas standalone applications require reliable power sources which can be realised by photovoltaic technology. Typically, photovoltaic cells and antennas are two separate devices. These devices compete for space in mobile or standalone systems, where available space is generally very limited. To address this issue, a combination of an antenna and a solar cell into a single device is needed. Integrating an antenna with a solar cell is challenging due to the importance of maintaining a compact, simple design while achieving optimal efficiency for both elements. This study focuses on designing a transparent grid array antenna integrated with Dye-Sensitized Solar Cells (DSSC) for Ku-band applications. The grid array design aims to improve antenna performance and is chosen for its suitability with the design and structure of the solar antenna device. The integrated antenna and solar cell were simulated using Computer Simulation Technology (CST) software at a frequency of 14 GHz for Ku-band applications. A prototype of the antenna and solar cell was fabricated, then tested and measured for the efficiency of both the antenna and solar elements. For the solar element, performance measurements were conducted using a halide lamp to mimic sunlight, with results presented in the form of current-voltage curves. In summary, by the end of this study, a transparent solar antenna for Ku-band applications was successfully designed with a gain exceeding 10 dBi. The solar cell’s performance showed an open-circuit voltage (VOC) of 0.6733 V, a short-circuit current density (JSC) of 2.06 mA/cm², a fill factor (fF) of 29.31%, and a power conversion efficiency (η) of 0.407%.
An Identification Potential of Legal Values in a Transitive Society
Authors: Skorobogatov A. V.
Published: July 2024

The article examines the role of legal values in the social identiﬁcation of citizens in a transitive society. Based on the analysis of the value foundations of legislation and its role in the construction of social identiﬁcation, a conclusion is made about the primacy of the axiological level of legal reality over ontological ones in a transitive society. The constitutional identiﬁcation of a person in these conditions is determined not by belonging to a certain nation and the implementation of the rules developed by it, but by positioning identiﬁcation with the community on value grounds. Often, such identiﬁcation is not so much an identiﬁcation as an imitation, since it involves only articulating compliance with the rules, and not following them. Based on this, identiﬁcation in a transitive society is situational and fragmented. In these conditions, the role of legislation in social identiﬁcation is changing. It becomes a tool that the addressee of communication uses to broadcast to the addressee a system of values that ensure not only the identiﬁcation of citizens, but also lawful behavior. At the same time, legislation, due to its instrumental features, is able to overcome transitivity and bring society to stable development and functioning.
Dogmatism in Law in the Context of Increasing Complexity of Reality
Authors: Tymoshchuk A. S.
Published: July 2024

It is believed that students engaged in law enforcement activities are more inclined to dogmatic methodology than students involved in civil law specialties. This is explained by the fact that a career in law enforcement attracts people who are authoritarian or dogmatic. The paper aims to question the role of criminal justice and criminal law in structuring dogmatism as the dominant structure of law enforcement thinking. Not only punitive justice and criminology are conditioned by dogmatic thinking. Even natural law is forced to construct a normative system, which is the only means of consolidating both punitive logic and usnaturalism. In addition, it should be noted that in the context of the imperatives of manageability of society, dogmatism is in demand in the penitentiary ﬁeld, as well as in the broader legal ﬁeld. Civil courts, administrative law, tax law, military law — all these subsystems depend on consensus in dogmatism to be eﬀective, because law in its anthropological phenomenology is made by people. There is something deontically important about the participation of science in law. This is because our science and technology are embedded in the innovation mechanism of industrial society, while law remains one of the archaic tools born in the cliodynamics of myth, morality and religion. Dogmatism acts as an epistemic perspective, with the help of which law is presented in the purest possible form; its ability to express deontic truth is revealed. The hermeneutical approach to law without taking into account basic deontology is to work with speciﬁc cases, and not with what is the essence of law.
Decoding the maternal factors for low birth weight babies and unveiling its impact on the newborn
Authors: Rana Yugma Kamlesh , Kapadia Lalit D. , Patel Arti J. , Bhati Bijal
Published: July 2024

Background: Low birth weight is a substantial global health issue with significant consequences to the newborn, family and society. It affects nearly 25 million births worldwide.
Methods: This was a prospective study. Total 100 patients included in this study. This study conducted for 6 months. at tertiary health care center.
Results: Maternal variables like anemia, hypertension, lack of proper antenatal care and lower socioeconomic status significantly influenced low birth weight in newborns. Clinical intervention such as iron supplementation and proper maternal nutrition, timely management of hypertensive disorders of pregnancy and creating public awareness regarding the importance of antenatal care have shown to impact neonatal outcomes positively.
Conclusions: Low birth weight is one of the leading causes of perinatal morbidity and mortality and hence it should be managed in a tertiary health care center with trained obstetricians and with facility of neonatal intensive care unit (NICU).
Cystocele management in multisurgical patients: a comprehensive case report emphasizing advanced diagnostic and surgical precision
Authors: Bhimgade Prajakta , Tholu Chandana P. , Dange Shalini , Choudhary Amruta A. , Yadav Anita , Mundle Shuchita
Published: July 2024

Pelvic organ prolapses (POP), particularly cystocele, presents significant challenges in postmenopausal women, exacerbated in those with multiple caesarean sections (LSCS) and comorbidities like diabetes mellitus. This case report details the successful management of a 62-year-old woman with a large cystocele, three LSCS, and diabetes mellitus. Thorough preoperative evaluation, including ultrasound and diagnostic laparoscopy, guided surgical planning. Anterior colporrhaphy restored support to the anterior vaginal wall. Perioperative care included strict glycemic control and antibiotic prophylaxis. Multidisciplinary collaboration ensured comprehensive management. This case highlights the importance of advanced diagnostics, meticulous surgical planning, and multidisciplinary care in complex cystocele cases.
Terata catadidyma conjoined twins: how early you can diagnose
Authors: Todani Ashok K. , Todani Kiranlata
Published: July 2024

A conjoined twin is a complex process end-result considered to be caused by either delayed splitting of the fertilized ovum or fusion of the embryonic stem cells. Disorganization of mutant genes is believed to be a cause in some cases. Conjoined twins are described as having been physically fused during pregnancy and delivery. Division after 14th day of fertilization, results in an incomplete division, because once it becomes an embryo, it is incapable of fusion. The later the division, the more severe the effect. Conjoined twins were first mentioned a long time ago when there was not much known about this. They share some organs that are vital for survival, like the heart; these twins are almost impossible to save, but there are some cases wherein there is evidence of their survival. Current technology is providing a basis for earlier diagnosis and a better prognosis. MRI and CT scan provide excellent anatomic details later in pregnancy, demonstrating organ position, shared viscera, and vascular anatomy. We present a case of live Terata Catadidyma (which refers to twins joined in the lower portion of their body, or they may appear to be two bodies on top and one body on the bottom), diagnosed at 7 weeks and 3 days by non-invasive ultrasonography, hardly reported previously so early in the literature. This reported conjoined twin were having defect in occipital region of neurocranium (forming calvarium) which should have produced encephalocele later. So, early diagnosis inflicts much less physical and psychological trauma to parents concerning viability and pregnancy outcome in long run.
An extremely rare case of 45X0/46Xi (Xq) Turner mosaic co-existing with schizophreniform disorder, a multidisciplinary management challenge: a case report and literature review
Authors: Ramu Sivalakshmi , Singh Nilanchali , Singh Shalini , Meena Jyoti
Published: July 2024

Turner syndrome has various presentations such as short stature, webbed neck, amenorrhea, cubitus valgus, renal anomalies, cardiac defects, etc. Still, the concurrent psychiatric concerns with Turner syndrome are not well-established in the literature. Although most patients with Turner syndrome do not have any mental disorder, a significant proportion of patients with Turner mosaic develop schizophrenia and affective disorders. Very few sporadic cases have been reported in the literature that support the association of the Turner mosaic with schizophrenia and affective disorders worldwide. In this case report we will be discussing an 18-year-old who was identified as the 45X0 / 46Xi (Xq) Turner Mosaic by karyotyping. During her follow-up visits, she was diagnosed with a schizophreniform disorder. Individuals who have both these comorbid conditions are infrequent in this case. A multidisciplinary approach to management consisting of antipsychotics, supportive psychotherapy, and endocrine replacement therapy was initiated for our patient and she responded well on follow-up visits. Our case report adds a potential clue that emphasizes the association of Turner mosaic with the development of schizophrenia. It highlights the importance of early diagnosis of the syndrome and understanding its association with schizophreniform disorder, which should warrant the clinician's early psychotherapy specified toward the psychological as well as the emotional aspects which might play a major role in preventing severe psychiatric complications in these patients. A literature review on this topic is also presented.
A new variant in the heterotaxy polysplenia syndrome
Authors: García Ramos Bonifacio , Angulo Trejo Mónica , Álamo Hernández Michael Vladimir , Saavedra Milán Ramiro
Published: July 2024

Heterotaxy is a low incidence genetic disorder of multifactorial inheritance characterized by various abnormalities in the position of organs and vessels relative to the midline of the body. It is most often associated with fatal congenital heart defects at birth. As a result, only a small percentage of patients survive into adulthood. The following clinical case presents a female adult patient with abdominal pain secondary to choledocholithiasis. During the diagnostic workup, she was diagnosed with intestinal malrotation complicated by portal vein thrombosis, which later developed into portal hypertension. In addition to several anomalies (agenesis of the inferior vena cava with direct communication of the suprahepatic veins to the right atrium, polysplenia and shortening of the pancreas), a possible variant of heterotaxy syndrome was diagnosed.
Unusual neuroendocrine tumor in unusual site: a case report and review of literature
Authors: Ayyamperumal Jeya Anand , Anbalagan Amudhan , Murugasen Satish Devakumar , Thangasamy Selvaraj , Satyanesan Jeswanth
Published: July 2024

Paragangliomas (PGL) are uncommon tumors that develop in the extra-adrenal chromaffin cells of the autonomic nervous system. They are usually found in the retroperitoneum along the abdominal para-aortic region. PGL arising near the pancreas are extremely rare. These tumors can be difficult to diagnose as they can resemble more common pancreatic tumors, making it challenging for clinicians, radiologists, and pathologists alike. In this report, we describe a case of PGL that originated in the pancreaticoduodenal groove, which was initially diagnosed as a neuroendocrine tumor arising from the second part of the duodenum. The patient underwent pancreas-preserving surgery to remove the tumour.
Hypospadias: a review
Authors: Martínez Alicia Del Carmen Rodríguez , Barrientos-Villegas Sofia , Mosqueira-Mondragón Carlos , Hernández Erick Fernando , Martínez-Sosa Isaim Paris , Mera Baltazar Barrera , Valderrama-Treviño Alan I.
Published: July 2024

Hypospadias is a common congenital anomaly, characterized by an alteration in the fusion of the ureteral meatus on the ventral aspect of the penis during embryogenesis. It presents with a classic triad of abnormal foreskin, penile curvature, and ureteral meatus in an ectopic position. Different types of hypospadias have been recorded, which will vary according to their severity and anatomical characteristics. Although its etiology has not been completely determined, it is known that it has a multifactorial origin, among which is genetic predisposition and has been associated with alterations in hormonal influence during pregnancy. An incidence of 1 in 200-300 male newborns has been reported. It has been associated with risk factors such as prenatal exposure to estrogens. It has been described concomitantly with other congenital anomalies such as Wilms tumor or aniridia. The initial management is surgical, which seeks penile anatomical correction and obtaining functional and aesthetic results. Currently, the surgical technique is recommended in a single surgical moment, which favors lower risks of complications. Prenatal diagnosis is of great importance with a post-birth evaluation to determine the type of hypospadias presenting and evaluate the most appropriate surgical approach. Surgical management must be accompanied by multidisciplinary management along with pediatrics and psychology, which resulted in a better physical and psychological outcome for the patient.
Novos contextos e dinâmicas socioespaciais dos shopping centers no Brasil: o caso do Oeste Metropolitano do Rio de Janeiro
Authors: Ferreira Heloisa Mariz , Silva William Ribeiro
Published: July 2024

As novas dinâmicas socioespaciais de shopping centers instalados a partir dos anos 2000, em áreas da periferia pobre de metrópoles brasileiras, tornam-se centrais para compreender a urbanização contemporânea dos grupos de menores rendimentos, que adquiriram maiores capacidades de consumo, através, principalmente, do aumento do salário-mínimo, formalização do trabalho, disseminação do crédito e emergência de novos agentes credores, como grandes redes varejistas, concomitante à informalização e precarização do trabalho. Diante desse contexto, nosso interesse consistiu em analisar shopping centers implantados no Oeste Metropolitano do Rio de Janeiro, região da metrópole marcada por contingente populacional expressivo, atração de moradores dos segmentos de média renda, investimentos públicos e privados em infraestrutura e na base produtiva. Para tanto, realizamos coleta de dados e classificação das atividades econômicas, tipos organizacionais, escalas de atuação e unidades que ofertam cartões de crédito. Com isso, apreendemos elementos em comum e dessemelhantes a outros shopping centers, o que denota diversidade entre os empreendimentos, exigindo redefinições conceituais e analíticas e indica que expansão urbana tem se mostrado mais segmentada e com novas questões referentes à fragmentação urbana.
EL MEDIO AMBIENTE COLOMBIANO Y LOS CULTIVOS ILICITOS
Authors: Díaz-Piedrahita Santiago
Published: July 2024

Se destaca la riqueza y diversidad de la flora colombiana y se analiza, desde el punto de vista histórico, el uso de la coca (Erytroxypon coca), la marihuana (Cannabis indica) y la amapola (Papaver somniferum) como mecanismos de escape. Se llama la atención sobre el daño ambiental generado por los cultivos ilicitos a través de la deforestación, el uso de matamalezas, la erosión de los suelos y la destrucción de las fuentes de agua.
REDESCRIPCION DE BRANCHIOICA PHANERONEMA MILES, 1943 (PISCES: TRICHOMYCTERIDAE) DE LA CUENCA DEL RIO MAGDALENA, COLOMBIA.
Authors: Román-Valencia Cesar
Published: July 2024

Se redescribe a Branchioica phaneronema, que parasita en las branquias otros peces. con base en material fresco, topotípico y los paratipos depositados en el USNM. No se hallaron diferencias con Branchioica magdalenae, aquí se le considera un sinónimo de B. phaneronema. Por otra parte, se observaron discrepancias entre los géneros Branchioica y Paravandellia. Se incluyen datos originales sobre las características de hábitat de la especie en el río La Vieja y en el río La Miel cuenca del Magdalena.
CRECIMIENTO DE COHORTES DE ÁRBOLES COETÁNEOS EN RODALES ESPACIALMENTE DISPERSOS: EL CASO DE CAMPNOSPERMA PANAMENSIS
Authors: Del Valle Arango Jorge Ignacio , Lema Tapias Alvaro
Published: July 2024

Se propone un método para estudiar el crecimiento de rodales coetáneos virtualmente monoespecíficos y espacialmente dispersos mediante la evaluación, en cada una de las cohortes coetáneas, de las tasas de crecimiento del árbol de área basal promedia y de su correspondiente diámetro promedio cuadrático. El método se tipifica con el estudio del crecimiento de rodales coetáneos naturales de la especie Campnosperma panamensis Standl, propia de los humedales forestales del litoral pacífico colombiano. Se empleó el modelo de crecimiento de von Bertalanffy. Los resultados muestran un mejor ajuste al modelo de las tasas de crecimiento de la variable árbol de área basal promedio que del diámetro promedio cuadrático. Se sustenta que estas variables no son equivalentes, como lo sugiere la literatura. Se derivan matemáticamente las curvas de crecimiento del árbol de área basal promedio: así como las tasas de crecimiento absoluta, media y relativa.
GIAMBATTISTA VICO: UNA NUEVA CIENCIA, LA HISTORIA
Authors: Laserna Mario
Published: July 2024

Con base en el análisis de la obra "Principios de una ciencia nueva en torno de la común naturaleza de los pueblos" publicada por Giambattista Vico en 1725, se demuestra en forma inequívoca cómo la actitud mental que dio origen a la ciencia de la naturaleza, inicia su ascenso y vida con Galileo y la Escuela de Padua, para dar lugar a una nueva ciencia cuyo contenido son los procesos históricos. Mediante la aplicación del método demostrativo a fenómenos expresables en el lenguaje cotidiano. Vico convierte el tema de una ciencia en proceso histórico, contradiciendo el positivismo de que solamente la matematización de los temas logra el rigor científico. Gracias a la ciencia de las capacidades de la mente, expresada inicialmente por Vico, la ciencia moderna puede revelar la variedad y complejidad de la naturaleza espacio­temporal.
UNA NUEVA ESPECIE DE ARISTOLOCHIA (ARISTOLOCHIACEAE) DE COLOMBIA
Authors: González Favio
Published: July 2024

Una nueva especie de Aristolochia (Aristolochiaceae) procedente de los alrededores de Villavicencio (Meta, Colombia) es descrita e ilustrada. La nueva especie pertenece a Aristolochia ser. Thyrsicae. Se incluye una clave para diferenciarla de sus especies afines del norte de Suramérica.
OROBANCHACEAE VENT., UNA FAMILIA DE PLANTAS HOLOPARÁSITAS NUEVA PARA EL TERRITORIO COLOMBIANO
Authors: Fernández-Alonso José Luis
Published: July 2024

Se documenta la presencia de Orobanche minor Sm. en Colombia como planta naturalizada, lo que representa el primer registro para esta especie en la franja neotropical y la primera indicación de la familia Orobanchaceae en territorio colombiano. Se comentan algunos aspectos agronómicos de esta especie, que es reconocida en el mundo, como maleza frecuente en algunos tipos de cultivos y como planta nociva en predios ganaderos.
SPACELE SALVIAE. UN RECURSO DE LA MEDICINA TRADICIONAL CHILENA POCO CONOCIDO
Authors: Peña Raúl C. , Montenegro Gloria , Iturriaga Liliana
Published: July 2024

La salvia blanca, Sphacele salvia Briq., es un recurso poco conocido de la medicina tradicional chilena. Se entregan los antecedentes botánico y farmacognósticos tendientes a la elaboración de la monografía pro farmacopea. Además se elabora una clave diagnóstica basada en los anexos epidér­micos que permite discriminar salvia blanca de la auténtica salvia oficinal.
MATORRALES Y BOSQUES DE LOS CERROS OCCIDENTALES DE CHÍA, SABANA DE BOGOTÁ, COLOMBIA
Authors: Cortés-S Sandra P. , Van der Hammen Thomas , Rangel-Ch. J. Orlando
Published: July 2024

Nota aclaratoria
Como consecuencia de un error técnico, en el artículo titulado: Comunidades vegetales y patrones de degradación y sucesión en la vegetación de. los cerros occidentales de Chía Cundinamarca -Colombia, publicado en el número 89 de esta Revista, [Rev. Acad. Colomb. Cienc. 23(89): 529-554, diciembre de 1999], no aparecieron las descripciones correspondientes a los matorrales y bosques que se transcriben a continuación. La versión integral del citado artículo está disponible en la edición electrónica.
BALANCE HÍDRICO BAJO TRES COBERTURAS VEGETALES CONTRASTANTES EN LA CUENCA DEL RÍO SAN CRISTÓBAL, BOGOTÁ
Authors: De las Salas Gonzalo , García Olmos Carlos
Published: July 2024

Se estimó el balance hídrico bajo tres coberturas vegetales en la Cuenca hidrográfica del río San Cristóbal. Se registró la precipitación en períodos semanales durante un año bajo cada cobertura vegetal, junto con mediciones de la variación del caudal en tres microcuencas adyacentes. Se evalua­ron los parámetros siguientes: evapotranspiración, precipitación interna, interceptación, infiltración y almacenamiento de agua, los cuales se discuten críticamente.
MORFOLOGIA Y ESTRUCTURA DE LAS FORMACIONES CORALINAS DEL ARCHIPIÉLAGO DE SAN BERNARDO, CARIBE COLOMBIANO
Authors: López-Victoria Mateo , Díaz Juan M.
Published: July 2024

El archipiélago de San Bernardo es un extenso complejo arrecifal de origen coralino localizado frente a las costas del Caribe colombiano. Con el objeto de determinar la distribución, rasgos morfológicos, estructura y esquemas de zonación de los ambientes bentónicos de esa área, mediante fotografías aéreas y observaciones de campo, se produjeron mapas temáticos y se obtuvieron datos acerca de la estructura de las comunidades de organismos sésiles del fondo. El complejo abarca un área de más de 250Km2, de los cuales más del 60% corresponde a fondos con cobertura coralina alta (> 60% del sustrato), que se extiende hasta casi 30m de profundidad. Se reconocieron tres unidades geomorfológicas y siete tipos principales de hábitats o de unidades ecológicas.
ASPECTOS DE HISTORIA Y ECOLOGIA DE LA BIODIVERSIDAD NORANDINA Y AMAZÓNICA
Authors: Van der Hammen Thomas
Published: July 2024

La gran biodiversidad del neotrópico es el resultado de su historia geológica y ambiental. En el Mioceno ya existe en la zona baja tropical una gran diversidad vegetal, que parece haber sido aún mayor que actualmente. El levantamiento progresivo de los Andes creó nuevas zonas de vida, que se poblaron por evolución adaptativa e imigración desde las regiones austral-antártico y laurasiático­holártico. El enfriamiento de la tierra durante el Neogeno y los períodos glaciales-interglaciales del Cuaternario, con cambios considerables de temperatura y precipitación en combinación con la topo­grafía, tuvieron un efecto profundo, ambos en la zona baja tropical como en la zona Andina, sobre la vegetación, la flora y la fauna, la distribución de especies y el endemismo.
En la actualidad, la densidad de especies vegetales tiene una relación positiva con la temperatura (altitud) y con la precipitación, y en parte con la humedad relativa del aire.
CARLOS CUERVO MARQUEZ, EL BOTANICO
Authors: Díaz-Piedrahita Santiago
Published: July 2024

Carlos Cuervo Márquez (Bogotá 2-VIII-1858, Méjico l 1-IX-1930) sobresalió como botánico, antropólogo, militar, político, periodista, diplomático, estadista e historiador. Se presentan algunos datos biográficos y se hace un análisis de sus trabajos botánicos, en particular del libro "Tratado Elemental de Botánica" publicado en 1913.
A NEW FROG (ELEUTHERODACTYLUS: LEPTODACTYLIDAE) FROM THE SOUTHERN PART OF THE CORDILLERA ORIENTAL OF COLOMBIA
Authors: Lynch John D. , Suárez-Mayorga Angela M.
Published: July 2024

Se nombran una especie nueva del grupo Eleutherodactylus conspicillatus de los bosques andinos bajos (740-1660 m.s.n.m) del flanco oriental de la Cordillera Oriental del sur de Colombia. La especie nueva comparte una sinapomorfía (tuberculos supra-anales) con tres especies más, E. gutturalis del oriente de la Amazonia, E. lanthanites del occidente de la Amazonia, y E. fallax, conocida de los bosques andinos del flanco oriental de la Cordillera Central de Colombia. La distribución de la especie nueva es consistente con una propuesta reciente sobre los límites inferiorers y superiores para distribuciones andinas.
Virus Oropouche, un arbovirus emergente en búsqueda de protagonismo en las Américas
Authors: Mendoza-Landinez Brayan Fabian , Freyle-Roman Ivette Karina , Rincón-Orozco Bladimiro
Published: July 2024

El virus Oropouche (OROV) es un arbovirus emergente con alto potencial de propagación, causante de numerosos brotes de enfermedad febril aguda en América del Sur y Centroamérica. El OROV circula a través de ciclos selváticos y urbanos, siendo el mosquito Culicoides paraensis el vector principal en áreas urbanas, donde los humanos actúan como el principal huésped. En la mayoría de los casos, la fiebre del OROV se presenta con síntomas leves, sin embargo, ocasionalmente pueden surgir complicaciones neurológicas graves como meningitis o meningoencefalitis. Aunque la patogénesis del virus aún no se comprende completamente, estudios experimentales en modelos animales han demostrado el tropismo del virus por el sistema nervioso, hígado y bazo. El diagnóstico de la fiebre del OROV representa un desafío debido a su similitud con el cuadro clínico causado por otros arbovirus altamente prevalentes en la región, lo que resulta en una subestimación de su prevalencia. Actualmente, no hay tratamiento antiviral ni vacuna disponible para manejar la infección por el OROV. La prevención se centra en estrategias para el control de vectores. Dada la creciente propagación del OROV en los últimos años, en esta revisión se abordan aspectos fundamentales del virus, incluyendo la organización de su genoma, ciclo de transmisión, manifestaciones clínicas, patogénesis y diagnóstico.
Is the Notion of “Concept” Possible?
Authors: Petrovsky H.V.
Published: July 2024

The article examines different interpretations of the notion “concept”, beginning with S.A. Askol’dov’s essay “Concept and Word” (1928). Askol’dov, who treats the concept as a general notion, points out its main features, such as the function of substitution and the potential for carrying out certain actions. What is implied is the generative function of “intellectual generalities” with respect to “intellectual particularities”. In a coiled-up fashion, the concept contains within itself a movement towards what has repeatedly occurred in relation to similar phenomena. Although devoid of representation, the concept is highly effective in terms of its potentiality, and this is where its mysterious aspect resides. In contemporary studies of culture (Yu.S. Stepanov, D.S. Likhachev) the concept is seen as the embodiment of culture in the mind of its bearers. What is highlighted is, again, the substitutive function of the concept (Likhachev refers to it as the “algebraic” expression of the meaning of a word) as well as the presence of various levels or layers, which are actualized in group communication (Stepanov). Exhibiting fluidity and transitivity, the concept, unlike properly philosophical concepts, captures the dynamic of a subject’s becoming in language as well as the rhythm of ongoing massive transformations, including those that embrace the realm of the political.
On the Evolution of the Conceptual Foundations of Russian Ethno-National Policy
Authors: Pain E.A.
Published: July 2024

On the eve of the update in 2025 of the “Strategy of State National Policy”, a discussion is unfolding in Russia about the existing and future conceptual foundations of such a policy. This discussion largely determines this article. In it, the author critically analyzes the stereotypical ideas about the national politics of Soviet and post-Soviet times that emerged in the process of this discussion. For example, about stability in the era of L. Brezhnev, a stereotype that does not take into account the rise of two varieties of nationalism in the 1960–1980s; about the “parade of sovereignties in the era of Soviet Perestroika: about multiculturalism as the supposedly official doctrine of Russian politics in the 1990s. The article analyzes the prospects for establishing a new concept of interculturalism in Russia. In this regard, the materials of a sociological study conducted by scientific teams led by the author of this article in 2018 in Rostov-on-Don are presented.
The Utilization Of Field Snails Into Soy Sauce Ingredients Enzymatically Regardless Of The Physical Quality
Authors: Namas Mikhael , Jelahut Felisianus Efrem
Published: July 2024

Rice soy sauce is a thick liquid made from snail meat juice . Soy sauce can be made in 2 ways, namely, traditionally/fermentation and by adding enzymes. Making soy sauce does not require a particular type of snail . In this research, we will study the use of rice snails to make rice snail sauce enzymatically. The aim of this research is to determine the effect of adding crushed pineapple tubers and fermentation time on the physical, chemical and organoleptic quality of the rice snail soy sauce produced. Proteolytic enzymes can break down and decompose proteins. Bromelain proteolytic enzymes can break down protein molecules into amino acids, enzymes that hydrolyze peptide bonds in the middle. This research used a completely randomized design (CRD) with a factorial pattern with 2 factors and 3 replications. The first factor was the addition of crushed pineapple tubers (10%), (15%), and (20%) and the second factor was the fermentation time (5.7 and 9 days). The results of this research show that when increasing the number of workers from 4 to 6 people, variable costs increase, but the number of rice snails produced increases , therefore the cost per bottle produced (marginal variable coast) decreases. The tendency to increase productivity often occurs when companies initiate production expansion. T et fire This is not the case if the company continues to expand production by continuing to increase the workforce employed.