Analysis of river training in Qareaqaj River in Iran: Application of RiMARS

Author(s):  
Abolfazl Jalali Shahrood ◽  
Ali Torabi Haghighi ◽  
Meseret Menberu ◽  
Hamid Darabi ◽  
Björn Klöve

<p>Erosion and sedimentation play a significant role in river morphology and are among the most important issues in river engineering. Riverbank protection is one of the common efforts in river engineering to stop or reduce the rate of side erosion in rivers. Riprap is one of the simplest and most economical river protection methods due to construction material availability, operation simplicity, flexibility, easiness to construct and repair.  Anthropogenic disturbances could have several side effects in rivers and subsequently induce a change in river morphology. Hence, morphological analysis is needed to trace the history of channel formation and forecast future changes. Riprap is widely used in the Southern parts of Iran to save the rural and agricultural areas located along the river. The Qareaqaj River is one of the major rivers in the South of Iran that is affected by side erosion in many places due to its high meandering morphology. Hence, a riprap structure was constructed in 2006 to protect the Qasr Ahmad village located in the right bank of the Qareaqaj River. The objective of this study is to evaluate how the river training has affected the channel morphology for 18 years in a 10 Km stretch (5 km above and 5 km below the riprap structure). Five Landsat multispectral images captured in 1995, 1999, 2003, 2010, and 2013 were used as input in the RiMARS (River Morphodynamics Analysis method based on Remote Sensing data) for morphological analysis. The Sinuosity Index (SI) has been estimated for meanders for 18 years and the results indicated that most meanders along the stretch are classified as <em>twisty</em> (about 36%), <em>meandering</em> (22%) and <em>winding</em> (18%). Furthermore, the river is divided into ten sections along the flow path and temporal migration of each section is separately analyzed. The river in its halfway (where the riprap was constructed) has migrated on average by 12.5 m, 2.2 m, 5.5 m, and 9 m in 1999, 2003, 2010, 2013, respectively, when compared to the year 1995. The maximum rate of river migration was observed (6.5 m per year) during 2010-2013 at the 7th decile of the stretch, which is about 2000 m below the protected area. The results clearly indicated that the migration rates increased in the downstream of the riprap protected area after the construction date.</p>

2021 ◽  
Vol 1 (3) ◽  
pp. 242-248
Author(s):  
Ana Nistiandani ◽  
Rondhianto Rondhianto ◽  
Muhammad Fakhrur Rozsy

Damage to motor nerves in people with diabetes increases the risk of a foot injury. This occurs because the damage results in changes in foot biomechanics, muscle atrophy, deformity, and increased pressure on the feet. So far, the examination of motor nerve damage in people with diabetes in agricultural areas such as the Jember Regency is still rarely touched by primary health services. The purpose of this study was to identify motor nerve damage in people with diabetes in the agriculture area of ​​the Jember Regency. This type of research is exploratory, descriptive, 102 respondents obtained by purposive sampling technique. Inclusion criteria in this study are age> 18 years; do not have DFU active, and did not experience amputation in both legs. Data collection uses instrument modification from MNSI (Michigan Neuropathy Screening Instrument) and MDNS (Michigan Diabetic Neuropathy Score). MNSI using in inspecting for deformity, while MDNS using for forms of physiological reflex damage and muscle strength.  The analysis used in univariate and displayed in the frequency distribution. The results showed that the majority of respondents who suffer from DM are experienced in the middle adulthood category (71.6%), with a length of suffering more than five years (95.1%), and have a history of comorbidities (68.6%). The most common form of motor deformity damage was hallux valgus on the right and left legs (38.2%; 26.4%). Forms of motor damage in the form of muscle strength, severe damage to the abduction of the right and left legs (7.8%), and were found right or left toe extensions (1.9%; 2.9%). Motor damage in the form of no physiological reflexes was found in the right and left Quadriceps femoral (2%; 1%), and right or left leg Achilles (1%). The result of total motor damage assessment is that people with diabetes have decreased muscle strength in the right and left extremities (74.5%; 72.5%). This research shows that the majority of people with diabetes in the agricultur area of ​​the Jember Regency suffer motor nerve damage. Therefore, there is a need for preventive measures to prevent the worsening condition of people with diabetes.    


Author(s):  
Melinda L. Estes ◽  
Samuel M. Chou

Many muscle diseases show common pathological features although their etiology is different. In primary muscle diseases a characteristic finding is myofiber necrosis. The mechanism of myonecrosis is unknown. Polymyositis is a primary muscle disease characterized by acute and subacute degeneration as well as regeneration of muscle fibers coupled with an inflammatory infiltrate. We present a case of polymyositis with unusual ultrastructural features indicative of the basic pathogenetic process involved in myonecrosis.The patient is a 63-year-old white female with a one history of proximal limb weakness, weight loss and fatigue. Examination revealed mild proximal weakness and diminished deep tendon reflexes. Her creatine kinase was 1800 mU/ml (normal < 140 mU/ml) and electromyography was consistent with an inflammatory myopathy which was verified by light microscopy on biopsy muscle. Ultrastructural study of necrotizing myofiber, from the right vastus lateralis, showed: (1) degradation of the Z-lines with preservation of the adjacent Abands including M-lines and H-bands, (Fig. 1), (2) fracture of the sarcomeres at the I-bands with disappearance of the Z-lines, (Fig. 2), (3) fragmented sarcomeres without I-bands, engulfed by invading phagocytes, (Fig. 3, a & b ), and (4) mononuclear inflammatory cell infiltrate in the endomysium.


VASA ◽  
2011 ◽  
Vol 40 (3) ◽  
pp. 251-255 ◽  
Author(s):  
Gruber-Szydlo ◽  
Poreba ◽  
Belowska-Bien ◽  
Derkacz ◽  
Badowski ◽  
...  

Popliteal artery thrombosis may present as a complication of an osteochondroma located in the vicinity of the knee joint. This is a case report of a 26-year-old man with symptoms of the right lower extremity ischaemia without a previous history of vascular disease or trauma. Plain radiography, magnetic resonance angiography and Doppler ultrasonography documented the presence of an osteochondrous structure of the proximal tibial metaphysis, which displaced and compressed the popliteal artery, causing its occlusion due to intraluminal thrombosis..The patient was operated and histopathological examination confirmed the diagnosis of osteochondroma.


Commonwealth ◽  
2017 ◽  
Vol 19 (1) ◽  
Author(s):  
John Arway

The challenges of including factual information in public policy and political discussions are many. The difficulties of including scientific facts in these debates can often be frustrating for scientists, politicians and policymakers alike. At times it seems that discussions involve different languages or dialects such that it becomes a challenge to even understand one another’s position. Oftentimes difference of opinion leads to laws and regulations that are tilted to the left or the right. The collaborative balancing to insure public and natural resource interests are protected ends up being accomplished through extensive litigation in the courts. In this article, the author discusses the history of environmental balancing during the past three decades from the perspective of a field biologist who has used the strength of our policies, laws and regulations to fight for the protection of our Commonwealth’s aquatic resources. For the past 7 years, the author has taken over the reins of “the most powerful environmental agency in Pennsylvania” and charted a course using science to properly represent natural resource interests in public policy and political deliberations.


2015 ◽  
Vol 43 (01) ◽  
pp. 44-38
Author(s):  
C.-C. Lin ◽  
K.-S. Chen ◽  
Y.-L. Lin ◽  
J. P.-W. Chan

SummaryA 5-month-old, 13.5 kg, female Corriedale sheep was referred to the Veterinary Medicine Teaching Hospital, with a history of traumatic injury of the cervical spine followed by non-ambulatoric tetraparesis that occurred 2 weeks before being admitted to the hospital. At admission, malalignment of the cervical spine with the cranial part of the neck deviating to the right was noted. Neurological examinations identified the absence of postural reactions in both forelimbs, mildly decreased spinal reflexes, and normal reaction to pain perception tests. Radiography revealed malalignment of the cervical vertebrae with subluxations at C1–C2 and C2–C3, and a comminuted fracture of the caudal aspect of C2. The sheep was euthanized due to a presumed poor prognosis. Necropsy and histopathological findings confirmed injuries of the cervical spine from C1 to C3, which were consistent with the clinical finding of tetraparesis in this case. This paper presents a rare case of multiple subluxations of the cervical spine caused by blunt force trauma in a young sheep. These results highlight the importance of an astute clinical diagnosis for such an acute cervical spine trauma and the need for prompt surgical correction for similar cases in the future.


1996 ◽  
Vol 35 (4I) ◽  
pp. 399-417 ◽  
Author(s):  
John W. Mellor

The right to the flow of income from water is vigorously pursued, protected, and fought over in any arid part of the world. Pakistan is of course no exception. Reform of irrigation institutions necessarily changes the rights to water, whether it be those of farmers, government, or government functionaries. Those perceived rights may be explicit and broadly accepted, or simply takings that are not even considered legitimate. Nevertheless they will be fought over. Pakistan has a long history of proposals for irrigation reform, little or none being implemented, except as isolated pilot projects. Thus, to propose major changes in irrigation institutions must be clearly shown to have major benefits to justify the hard battles that must be fought and the goodwill of those who might win those battles for reform. Proponents of irrigation institution reform have always argued the necessity of the reforms and the large gains to be achieved. Perhaps, however, those arguments have not been convincing. This paper will briefly outline the failed attempts at irrigation reform to provide an element of reality to the discussion. It will then proceed to make the case of the urgency of reform in a somewhat different manner to the past. Finally, current major reform proposals will be presented. This paper approaches justification of irrigation reform by focusing on the agricultural growth rate. It does so because that is the critical variable influencing poverty rates and is a significant determinant of over-all economic growth rates. The paper decomposes growth rates and suggests a residual effect of deterioration of the irrigation system that is large and calls for policy and institutional reform. The data are notional, suggesting the usefulness of the approach and paves the way for more detailed empirical analysis and enquiry for the future.


2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Nurman Kholis

Abstract. Many Muslims in the Riau Islands do not know the history of the development of Islamic theory from the center of power to spread to various corners. This is as the existence of the Great Mosque of Raja Haji Abdul Ghani (MBRHAG) on Buru Island, Karimun. Thus, to uncover the existence of this mosque, qualitative research methods are used so that history, architecture, and socio-religious functions can be known. Based on the results of the study it was concluded that the establishment of MBRHAG was initiated by Raja Haji Abdul Ghani. He was the first Amir (sub-district level government) of the kingdom of Riau-Lingga on Buru Island, in the 19th century. The architecture is a Chinese. Therefore, on the right side of this mosque is around 200 m, there is also the Sam Po Teng Temple and the Tri Dharma Dewa Bumi. Thus, the close location of the mosque with Chinese and Confucian worship houses's shows a harmonious relationship between Malay Muslims and Chinese Buddhists. In fact, in the continuation of this relationship there was information that a Chinese Buddhist had joined a Muslim friend to fast for half a month of Ramadan.Keywords: Mosque, Malay Muslims, Chinese Buddhists/Confucians, Harmonious RelationsAbstrak. Umat Islam di Kepulauan Riau banyak yang tidak mengenal sejarah perkembangan ajaran Islam dari pusat kekuasaan hingga tersebar ke berbagai pelosok. Hal ini sebagaimana keberadaan Masjid Besar Raja Haji Abdul Ghani (MBRHAG) di Pulau Buru, Karimun. Dengan demikian, untuk mengungkapkan keberadaan masjid ini digunakan metode penelitian kualitatif  agar dapat diketahui sejarah, arsitektur, dan fungsi sosial keagamaannya.  Berdasarkan hasil penelitian diperoleh kesimpulan bahwa pendirian MBRHAG diprakarsai oleh Raja Haji Abdul Ghani. Ia adalah Amir (pemerintah setingkat kecamatan) pertama kerajaan Riau-Lingga di Pulau Buru, pada abad ke-19. Adapun arsitekturnya adalah seorang Tionghoa. Karena itu, di sebelah kanan masjid ini sekitar 200 m juga terdapat Kelenteng Sam Po Teng dan cetya Tri Dharma Dewa Bumi. Dengan demikian, dekatnya lokasi masjid dengan rumah ibadah umat Tionghoa dan Khonghucu ini menunjukkan hubungan yang harmonis antara muslim Melayu dengan Budhis Tionghoa. Bahkan, dalam kelangsungan hubungan ini terdapat informasi seorang Buddhis Tionghoa pernah ikut temannya yang beragama muslim untuk berpuasa selama setengah bulan Ramadhan.Kata Kunci: Masjid, Muslim Melayu, Buddhis/Khonghucu Tionghoa, Hubungan Harmonis


2020 ◽  
Vol 28 ◽  
pp. 1-3
Author(s):  
Alexandre Bonfim ◽  
Ronald Souza ◽  
Sérgio Beraldo ◽  
Frederico Nunes ◽  
Daniel Beraldo

Right coronary artery aneurysms are rare and may result from severe coronary disease, with few cases described in the literature. Mortality is high, and therapy is still controversial. We report the case of a 72-year-old woman with arterial hypertension, and a family history of coronary artery disease, who evolved for 2 months with episodes of palpitations and dyspnea on moderate exertion. During the evaluation, a giant aneurysm was found in the proximal third of the right coronary artery. The patient underwent surgical treatment with grafting of the radial artery to the right coronary artery and ligation of the aneurysmal sac, with good clinical course.


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