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These gymnosperms arthritis in birds feet generic 400mg etodolac amex, in which circular patterns of tracheary element and related genomic technologies are also being used to dealing with arthritis in neck discount etodolac 200 mg online develop in secondary xylem above branches arthritis zurich purchase etodolac online from canada, which impede provide massive datasets for new computational approaches arthritis in neck and feet purchase cheapest etodolac and etodolac, auxin transport. Amazingly, fossils of wood from 375-million- including network biology, which can model the complex inter- year-old Archaeopteris (a progymnosperm) also show this actions of genes that together regulate fundamental features pattern (Rothwell and Lev-Yadun 2005). Importantly, these new technologies A general expectation is that the auxin-related mechanisms must be integrated within the framework of paleobotany, plant regulating vascular differentiation are shared. The triple mutant phb phv rev has radialized cytokinin and brassinosteroids, as well as other small regu- as well as abaxialized leaves and vascular bundles. The complete root promeristem with all initials and callose, a fi-1,3-glucan (Verma and Hong 2001; Colombani derived cell types is contained already in the early torpedo et al. The accumulation of auxin, through cell-to-cell communication and cell fate determination. As the root grows, the cellular pattern is established and After the initial differentiation, the vasculature develops in maintained by the self-renewal of pluripotent root meristem bundles (Esau 1969). The radial patterning of the the stele, the cortex/endodermal initials, the epidermal/lateral vascular bundles is already established during embryogenesis root initials, and the columella initials. As opposed to the invariant pattern of cell water-conductive xylem tissue that is fianked by two poles of lineages in the endodermis and outer layers, the number photoassimilate-conductive phloem tissue. This asymmetry allows these initials to give rise to center, allowing the precise determination of the first true multiple cell lineages with different fates; in addition to the phloem domains. At first, although cell divisions and early xylem phloem lineage, they also precede undifferented procambial specification can be observed (though not yet the complete Insights into Plant Vascular Biology 303 Figure 6. Recently, it has been mechanism does protoxylem differentiation occur in a spatially shown that the root vascular pattern is defined by a mutually specific manner, allowing for the proper development of the inhibitory interaction between cytokinin and auxin (Bishopp phloem cell types. To understand how these unique cell identities Sieve elements comprise the main conductive tissue of the are acquired, a deeper understanding of these programs is phloem. However, very early in primary phloem set of developmental time points, and a comprehensive set of development, they undergo dramatic changes in their morphol- cell types within the root, has resulted in the most detailed root ogy. More than a thousand genes reduction in cellular contents establishes an effective transport have been identified as having phloem-specific expression, route through the sieve tubes. The cell walls which expressing the uidA reporter gene in immature vascular tissues. Using these markers, these of the cell wall are removed, thereby forming a sieve plate authors could track the onset of phloem development directly with enlarged pores (Lucas et al. It is also of the midveins and higher order veins before procambium noteworthy that these pores increase considerably in size as differentiation, thereby defining the pre-patterning of the future tissues age, thus increasing the transport potential of the more veins. These reporter, J0701, cease to be expressed entirely in these mutant Insights into Plant Vascular Biology 305 Figure 7. Procambial cell number is increased and gaps of undifferentiated cells are visible in the protophloem strand. This dramatic effect is restricted to the phloem poles; to analyze the apl mutant in more detail (Truernit et al. With this increased resolution, it was discovered that pro- As mentioned above, asymmetrical cell divisions establish tophloem differentiation proceeds normally in this mutant until the phloem poles in wild-type plants; periclinal divisions es- 2 dag. In the apl mutant, ectopic xylem strands such a factor, or factors, has yet to be determined. Importantly, continuous exogenous auxin treatment could in the developing cotyledon is increased. These cellular differentiation mechanism(s) which selectively supports a biased phloem- defects caused inefficient phloem transport in the root. Inductive cell-to-cell com- established function of photoassimilate transport from the pho- munication from differentiated to undifferentiated neighboring tosynthetic organs to the sink tissues. This to regulate early phloem development and to control transport process likely involves the cell-to-cell trafficking of a wide range function of phloem (Ingram et al. Insights into Plant Vascular Biology 307 Molecular Mechanisms Underlying Xylem Cell Differentiation In the shoot apical meristem, stem cells differentiate into var- ious cell types that comprise the shoot, while still proliferating in order to maintain themselves (Weigel and Jurgensfi 2002). Therefore, procambial and cambial cells are considered as vascular stem cells (Hi- rakawa et al. Recent stud- ies have revealed that local communication between vascular stem cells and differentiated vascular cells directs the well- organized formation of vascular tissues (Lehesranta et al. During this vascular formation, plant hormones, including auxin, cytokinin and brassinosteroids, act as signaling molecules that mediate in this process of cell-cell communication (Fukuda 2004). Further insight into the differentiation of procambial cells into xylem cells has been gained from recent comprehensive gene expression and function analyses (Kubo et al. In maintenance, by inhibiting xylem differentiation from procam- this section of the review, we will evaluate advances in our un- bial cells and promoting procambial cell proliferation (Hirakawa derstanding of xylem cell differentiation from procambial cells, et al. These transcripts within Insights into Plant Vascular Biology 309 xylem precursors specify central metaxylem vessels, at high Fukuda 2003) and xylem cell differentiation (Yamamoto et al. This 1997), brassinosteroids may promote xylem differentiation, at reciprocal signaling between the inner vascular tissues and the least partly, through activation of these genes. Exogenously applied themospermine suppresses xylem vessel differentiation, respectively (Kubo et al. This rapid amplification of the master transcription factor may drive xylem cell differentiation promptly and irreversibly. These master transcription factors of xylem differentiation by these genes is more complicated. According to the morphological process, the death of xylem Cellular events underlying xylem cell formation tracheary elements is defined as a vacuolar type of cell death Xylem cell differentiation involves temporal and spatial regu- (Kuriyama and Fukuda 2002; Van Doorn et al. These findings indicate that tracheary to that of xylem tracheary elements, likely due to the fact that element-differentiation-inducing master genes initiate at least this process proceeds slowly in these cell types. Recently, the protease responsible for developing xylem- the leaf vascular system is a network of interconnecting related caspase-3-like activity was purified and identified to veins, or vascular strands, consisting of two main conducting be 20S proteasome (Han et al. Consistent with this notion, the bundle must be precisely spatially coordinated along with the 312 Journal of Integrative Plant Biology Vol. The spatial organization of the leaf vascular system is both species- and organ-specific. Despite the diverse vein patterns found within leaves, the one commonality that is present during the ontogeny of the vascular system is the organization of the vascular bundles into a hierarchical system. Veins are orga- nized into distinct size classes, based on their width at the most proximal point of attachment to the parent vein (Nelson and Dengler 1997). Primary and secondary veins are considered to be major veins, not only due to their width, but because they are typically embedded in rib parenchyma, whereas higher order, or minor, veins such as tertiary and quaternary veins are Figure 10. The highest order veins, (A) Venation pattern in the lamina of a mature Arabidopsis leaf. Vein size classes are color coded the presence of this hierarchical system in leaves refiects the as follows: Orange, mid (primary) vein; purple, secondary/marginal function of the veins such that larger diameter veins function veins; blue, tertiary veins; red, quaternary/freely ending veinlets. Establish- In both the juvenile and adult phase leaves of Arabidopsis, ment of the overall vein pattern in Arabidopsis is basipetal (black the vein pattern is characterized by the major secondary veins arrow). Secondary pre-procambium of the first pair of loops develop that loop in opposite pairs in a series of conspicuous arches out from the midvein (dotted pink arrows, arrow indicates direc- along the length of the leaf (Hickey 1973). Pre-procambium of the termed brochidodromous, is present in both juvenile and adult second pair of secondary vein loops progresses either basipetally or phase leaves. Third and higher secondary vein loop pairs progress out in the adult leaves; there is a higher vein density and vein order from the midvein towards the leaf margin and reconnect with other (up to the 6th order) when compared with the juvenile leaves extending strands (dotted black arrows). Despite this increasing vascular simultaneously along the procambial strand (blue solid lines). Xylem complexity, the overall vein pattern within a given species is differentiation occurs approximately 4 d later and can develop highly conserved and reproducible, yet the vasculature itself either continuously, or as discontinuous islands, along the vascular is highly amenable to changes and re-modification during leaf strand (purple lines, arrow indicates direction of xylem strand development (Kang et al. Pre-procambium is iso- Longitudinal vein pattern—procambium diametric in cell shape and is anatomically indistinguishable from ground meristem cells (maroon cell). Cell divisions of As indicated above, the procambium is a primary meristematic the pre-procambium are parallel to the direction of growth tissue that develops de novo from ground meristem cells to (light blue cells) of the vascular strand, resulting in elon- form differentiated xylem and phloem. In a temporal sense, the gated shaped cells characteristic of the procambium (dark blue longitudinal vein pattern in Arabidopsis develops basipetally. However, the individual differentiating strands of the pre- (D) Radial vein pattern in leaves. In severely radialized leaf mutants, as well as the local auxin levels (Figure 10B). Insights into Plant Vascular Biology 313 the elongated procambium cells develop through distinct in vascular strand formation (Wenzel et al. It is now cell division patterns in which they divide parallel to the vas- well documented that mp loss-of-function mutants have re- cular strand (Kang et al. Although the duced vasculature, discontinuous veins, and also affect embryo anatomical distinction of procambium is clearly evident by its polarity and root meristem patterning (Hardtke and Berleth elongated shape, the precursor cells, pre-procambium, are 1998; Hardtke et al.

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Amphibians are known to rheumatoid arthritis research discount etodolac 400 mg mastercard be particularly sensitive to arthritis pain formula ingredients order 300mg etodolac amex acidfistressed waters in forests arthritis knee diet treatment buy discount etodolac, and there may be effects on birds and invertebrates as the impacts cascade through their trophic levels arthritis in back causing hip pain buy etodolac 300mg with amex. There is a strong argument to be made for managing forestry very carefully in watersheds with poor buffering capacity. Positive efforts should include limiting clearcutting wherever possible and ensuring that harvest cycles are sufficiently long for nutrients to be replenished by natural processes. Nova Scotians cherish old forests for a far wider array of values, especially ecological and psychofisocial ones, than they do any other components of the forest matrix (Moyer et al. In the simplest of terms, old forests are defined as relatively old and relatively undisturbed forest ecosystems (Hunter 1989). First, many agree that not enough old forest exists across the wooded landscape today. Without historical context, old forests satisfy such a vast array of values that more of them, given their putative rarity, would simply be a good thing. However, with historical context, many believe that the primeval forests of the region, before European settlement, were actually dominated by the oldfiforest condition. Thus, trying to get back some semblance of the natural forest conditions, with much more old forest, is a good thing. Simply put, the trees were cut and used for a plethora of applications and products, at a much faster rate than young forests could develop into the oldfiforest condition. In some parts of the province, land was cleared for agriculture and infrastructure development. This started in earnest during the 17th century and has continued apace until recently. For centuries, the harvest approach can be described as “cut the best and leave the rest,” or highfi grading. Starting in the midfi20th century and continuing today, the harvest approach has been dominated by clearcutting. The oldfiforest policy is government’s attempt to conserve oldfiforest conditions across all 38 ecodistricts of the province. The second issue is the general lack of data on which forest stands across the province are actually old forest. The data are uneven: in some areas the government has a good handle on all the old forest, and in other areas it does not. Determining with confidence that a forest stand is old forest, by any definition, requires a field visit for data gathering. Interpretation of aerial photographs has been demonstrated to lead to calls on stand age that are decades lower than the stand age determined by field data (Pesklevits 2006). The Government of Nova Scotia has, of course, full authority to conserve old forest on Crown land (amounting to about onefithird of the wooded land base), but not currently on private land. On Crown land outside protected areas, we need better information on the existence of old forest. Also, we may have opportunity to protect more of it than the 8 per cent target set in the oldfiforest policy, if indeed more than that even exists. Full protection is the only way to satisfy both the oldfiage and lowfidisturbance requirements of the conceptual definition. However, if one accepts that some silvicultural intervention may be warranted in the longfiterm conservation of old forest (Duinker and Bush 2009), then perhaps singlefitree selection or other restorationfioriented harvest approaches could be used to perpetuate or even accelerate the arrival of the oldfiforest condition. For example, since the oldfiforest definition in the provincial policy calls for more than half the basal area to be occupied by climax tree species, careful removal of nonficlimax species might be a way to accelerate development of a greater dominance of climax species. On the matter of which species can contribute to the oldfigrowth condition, our observation is that the Nova Scotia policy is both unduly restrictive and unduly inclusive. Regarding inclusivity, American beech has been ravaged across the province for more than a century by the nonfinative beechfibark disease, to such an extent that old, uninfected beech trees are truly a rarity (whereas infected younger trees are ubiquitous). Regarding exclusivity, at least two broadleaf species normally classified as “midfitolerant to competition” should be added: red oak and red maple. We note that a midfitolerant species is already in the conifer suite, that being white pine. In stands across the province, many trees of these species can easily exceed the oldfigrowth threshold age of 125 years. Tools for the encouragement of partial harvests where the residual stand can develop oldfiforest conditions (apart from the “relatively undisturbed” condition) also exist. Indeed, broad adoption of ecological forestry should, by definition, increase the number of trees and stands across the province that resemble old forests. Should the situation ever arise where old forests are the norm rather than the exception, the province’s Old Forest policy can be amended to take a different approach to oldfiforest conservation. Clearcutting creates abrupt changes in the forest vegetation, is visually offensive to most people, and was historically associated with forest exploitation prior to the emergence of the profession of forestry. Clearcutting and its alternatives are thus a central focus of this report, as this practice has dominated forestry in Nova Scotia for decades despite the growing unrest from many about its role in the ecological sustainability of the Acadian forest. The Acadian forests of Nova Scotia are characterized by shadefitolerant and longfilived commercially valuable species such as maple and red spruce. The disturbance patterns are largely gap dynamics driven by smallfiscale wind and insect events and individual tree mortality. Multifiaged selection and shelterwood silvicultural systems are thus most appropriate with natural disturbance processes leading to multifiaged, structurally complex stand conditions. There is little doubt that clearcutting in Nova Scotia has developed a bad reputation among many people because it is ecologically and silviculturally inappropriate in many of the province’s forests, it is visually unappealing, and there has been a failure to meet past commitments to decrease substantially the extent of the practice. Any discussion of clearcutting as a forest practice must recognize that in forestry, the term “clearcutting” has at least two distinctly different meanings, which no doubt creates confusion among interested stakeholders and even within the profession of forestry itself. This confusion results from the fact that clearcutting is both a harvesting practice and a natural regeneration method in silviculture. As a harvesting practice, the focus is on how much of the overstory timber is harvested: [Harvest] Clearcutting = removal of most or all of the merchantable timber in a single harvesting operation. As a regeneration method in silviculture, the focus is on how the tree regeneration (seedlings and sprouts) becomes established: [Silvicultural] Clearcutting = complete removal of all vegetation, with all growing space made available for establishment of new plants after the harvest. Silvicultural clearcutting relies on new seedlings established by seeding from surrounding uncut stands, seed crops on harvested trees, dormant seed in the forest floor, or artificial regeneration (planting or direct seeding). Most members of the public, who find any kind of intensive timber harvesting offensive or problematic, arguably don’t care about the distinction between the two methods, but it is a far from purely semantic matter among professional foresters and ecologists. This distinction is especially important when alternatives to traditional clearcutting are considered; they may appear superficially similar but in fact are very different in terms of silvicultural intent and ecological function. To illustrate the difference, consider two alternative silvicultural approaches for the same forest stand. There are also scattered large pines that are now very old remnants of the original forest that was harvested heavily 80 years ago. The regeneration layer in the understory is sparsely stocked with small advance seedlings, mostly fir. Option A: Harvest all trees in a single operation and allow the stand to regenerate naturally from whatever seeds may fall on the site afterwards or germinate from the forest floor. Option B (two harvests): Harvest 40 per cent of the spruce and all of the fir in one harvest (a shelterwood establishment cutting) Then, in the final, incomplete overstory removal cutting, return in 15 years and remove 90 per cent of the remaining stand (all but the white pines of both age classes). The regeneration layer is now 2 m tall and is carefully protected in the final harvest. Option A is a true silvicultural clearcut that has no explicit provision for regeneration and, of course, is also a harvest clearcut. Option B follows a simple variant of the irregular shelterwood system, initially leaving some trees to provide seed and shade, then in the second entry, leaving the pines as reserves for future growth and as biological legacies to enhance biodiversity. Note, however, that the final harvest here is also a “clearcut” from a harvesting, operational perspective, and would leave the site mostly (but not entirely) devoid of large trees for several decades. But from an ecological perspective, the differences between these two options are stark, arising from a single emergent property: how much residual vegetation is left after the harvests – what foresters and ecologists commonly call retention (see Section 8. In the case of the shelterwood system, the remaining large trees maintain some degree of vertical canopy diversity, maintaining and enhancing the twofiaged character of the forest, whereas Option A simplifies the original twofiaged stand and likely would not maintain the dominance of the shadefitolerant spruce and fir in the regeneration. A major theme of this report is to embrace the practice of ecological forestry by expanding the use of multifiaged silvicultural systems, including the simple twofiaged variant (Option B), and replacing the former singlefiaged paradigm epitomized by Option A wherever feasible. A narrowfiminded focus simply on eliminating clearcut harvesting in any form would, in this example, be counterproductive because the final step in the irregular shelterwood sequence is a heavy harvest removal and could also be considered a clearcut by definition under some categorizations of forest practices. Stated another way, it is the silvicultural systems, not the specific harvest methods used to implement them, that should define the discussion, because doing otherwise will not truly change forest practices in Nova Scotia. In this context, clearcut harvests used to perpetuate the singlefiaged systems are thus to be discouraged, but such harvests in the context of ecologically based silvicultural systems informed by natural disturbance regimes are perfectly defensible ecologically.

Syndromes associated with cysts – Zellweger’s syndrome arthritis relief juice discount etodolac 300 mg visa, 8 tuberous sclerosis arthritis medication list discount etodolac 300mg with amex, Turner’s syndrome arthritis center of nebraska purchase online etodolac, von Hippel–Lindau disease zen arthritis spray buy etodolac in united states online, trisomy 13 and 18. End-stage renal disease and haemodialysis – in 8–13% of patients in renal failure not on dialysis; 10–20% of patients after 1–3 years of dialysis; >90% of patients after 5–10 years of dialysis but can involute after a successful renal transplant. Calyceal cysts (diverticulum) – small, usually solitary cyst communicating via an isthmus with the fornix of a calyx. Multiple, small, mainly pyramidal cysts which opacify during excretion urography and contain calculi. Juvenile nephronophthisis (medullary cystic disease) – usually presents with polyuria and progressive renal failure. Suspect if thick walls or separations but this may just indicate previous infection/haemorrhage in cyst. Parapelvic cyst – located in or near the hilum, but does not communicate with the renal pelvis and therefore does not opacify during urography. Perinephric cyst – beneath the capsule or between the capsule and perinephric fat. It may compress the kidney, pelvis or ureter, leading to hydronephrosis or causing displacement of the kidney. Radiological evaluation, management, and surveillance of renal masses in Von Hippel–Lindau disease. Bosniak I – simple cyst Water attenuation with no enhancement; imperceptable wall, no septa, calcifcations or solid components. Treatment comprises enhancing partial nephrectomy or radiofrequency ablation in the elderly and those with poor surgical risk. Multilocular cystic renal cell carcinoma: comparison of imaging and pathologic fndings. Angiomyolipoma – 80% of cases are sporadic and 20% are associated with tuberous sclerosis. Angiomyolipomas are seen in up to 80% of patients with tuberous sclerosis where they are commonly large, bilateral and multifocal. Renal cell carcinoma – invasion of perirenal fat or intratumoral metaplasia into fatty marrow (in one-third of renal cell carcinomas if <3 cm). Oncocytoma – entrapment of perirenal or sinus fat or production of fatty marrow in association with osseous metaplasia. Bilateral in 10% and an increased incidence of bilaterality in polycystic kidneys and von Hippel–Lindau disease. There is usually a large parenchymal mass before there is any sizeable intrapelvic mass. Hamartoma – usually solitary but often multiple and bilateral in tuberous sclerosis. Diagnostic appearance on the plain flm of radiolucent fat (but only observed in 9%). Other signs are of any mass lesion, and angiography does not differentiate from renal cell carcinoma. Transitional cell carcinoma of the upper urinary tract: spectrum of imaging fndings. Common and uncommon histologic subtypes of renal cell carcinoma: imaging spectrum with pathologic correlation. Malignant (a) Renal cell carcinoma – usually inhomogeneous and irregular if large. Round, well-defned, homogeneous (usually high-density precontrast, low-density postcontrast), ± central stellate low-density scar if tumour bigger than 3 cm. Abscess – thick irregular walls ± perirenal fascial thickening, but this can occur in malignancy. Xanthogranulomatous pyelonephritis – obstructing calculus seen in 80% cases leading to chronic sepsis, perinephric fuid collections and fstula formation. Acute focal bacterial nephritis – wedge-shaped low density ± radiating striations after intravenous contrast. Urothelial carcinoma – intraluminal flling defect on excretory urography, centred in the renal pelvis which secondarily invades the renal sinus and the renal parenchyma. Retroperitoneal tumours that extend into the renal sinus – any retroperitoneal tumour but lymphoma most commonly. Renal parenchymal tumours that project into the renal sinus – renal cell carcinoma, multilocular cystic nephroma. Peripelvic cyst – multiple, small, benign, extraparenchymal cysts, probably lymphatic in origin, which appear to arise in the sinus itself. Parapelvic cyst – single, larger cyst protruding into the sinus, most likely originating from the adjacent parenchyma. Large cysts may cause haematuria, hypertension or hydronephrosis by local 8 compression. Vascular – renal artery aneurysm, arteriovenous communication or renal vein varix can manifest as parapelvic masses or peripelvic lesions. Infammatory – usually extension into the sinus from chronic or severe pyelonephritis. Haematoma – as a complication of anticoagulant therapy or less commonly secondary to trauma. Urinoma – usually associated with ureteral obstruction secondary to stone disease or trauma. Nephroblastomatosis (a) Persistence of multiple macroscopic or diffuse nephrogenic rests. IgG4 disease) together with autoimmune pancreatitis, sclerosing cholangitis, Riedel’s thyroiditis and scleroderma. Extramedullary haemopoiesis (a) A physiological compensatory mechanism for failure of erythropoiesis. Lymphoma (a) Perinephric lymphoma commonly due to extension of retroperitoneal or renal lymphoma. Metastases (a) Haematogenous spread from melanoma, prostate, breast, 8 gastrointestinal tumours. Focal solid lesions (a) Most commonly due to renal, adrenal or retroperitoneal tumours and metastases. Usually asymptomatic, but may result in haematuria, proteinuria, hypertension and page kidney. Abscess and infection Acute bacterial pyelonephritis – commonly due to ascending Escherichia coli infection. Xanthogranulomatous pyelonephritis – a rare form of chronic pyelonephritis in which there is progressive renal destruction and replacement by lipid-laden macrophages. The perirenal space: relationship of pathologic processes to normal retroperitoneal anatomy. Neoplastic and non- neoplastic proliferative disorders of the perirenal space: cross-sectional imaging fndings. Focal renal infarction – arterial embolus or thrombosis/renal vein thrombosis/sepsis/vasculitis. Increasingly dense nephrogram Increasingly faint nephrogram becoming increasingly dense over hours to days. Rim nephrogram Rim of cortex receiving collateral blood fow from capsular, peripelvic and periureteric vessels. Acute complete arterial occlusion – smooth nephrogram from cortical perfusion by capsular arteries. Striated nephrogram Streaky linear bands of alternating hyperattenuation and hypoattenuation parallel to the axis of tubules and collecting ducts during the excretory phase. Parallel or fan-shaped streaks radiating from the papilla to the periphery of the kidney. Unilateral – usually obstruction, renal vein thrombosis or acute bacterial nephritis. Tumours – hypertension is more common with Wilms’ tumour than with renal cell carcinoma. Stenosis of the proximal 2 cm of the renal artery; less frequently the distal artery or early branches at bifurcations. Stenoses ± dilatations which may give the characteristic ‘string of beads’ appearance.

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This Code, which can reviews, the frequency of which varies according to the score be found on Air Liquide’s website, applies to existing and new suppliers. Since 2014, the Group also conducts on-site Sustainable Developm ent audits for certain suppliers that are considered to be particularly at risk in the Supplier Code of Conduct is based on internationally recognized this area, due to unsatisfactory evaluations. These audits m ainly cover principles such as the Universal Declaration of Hum an Rights, the social and environm ental factors. They are conducted according to United Nations Guidelines on com panies and Hum an Rights, the recognized external benchm arks, often by a specialized external auditor. In certain cases, business relationships were suspended while the supplier brought its practices into com pliance. Whistleblowing mechanism and compilation of reports the current whistleblowing tool, Ethicall, allows em ployees, and m ore and safety in the workplace as well as environm ental protection. W ider recently external collaborators, to report deviations from the Code of use of this whistleblowing tool as part of the Group’s vigilance plan is Conduct, including on subjects relating to Hum an Rights, health, hygiene currently being considered. Monitoring system the m onitoring system, including key indicators and reports on actions, the Board of Directors’ Environm ent and Society Com ittee will be will be described in the 2018 Sustainable Developm ent Report. The Group’s ambition Air Liquide’s ambition is to lead its industry, deliver long-term performance and contribute to sustainability. The m ajor environm ental and societal challenges, such as the clim ate, air In certain situations, tem porary support is required to develop or quality and access to care, also represent growth opportunities for the im plem ent solutions. The Sustainable Developm ent strategy is part of this dynam ic, to fundam ental research and local developm ent. Air Liquide’s main Sustainable Development stakes To rem ain relevant in its approach, Air Liquide regularly reviews its Following this initial consultation, ten sustainable developm ent stakes own sustainable developm ent stakes through consultations with its were identified and classified according to these categories: environm ent, stakeholders. In 2015, Air Liquide consulted its stakeholders on these stakes and the im portance they place on them. This consultation allowed Air Liquide to draw up a m ap (a)(or a m ateriality m atrix). Of these ten stakes, Air Liquide believes that safety, ethics and the Moreover, Air Liquide, in partnership with other French industrial groups respect of Human Rights and the environment are prerequisites for any and an external body, launched the first joint materiality survey of French action carried out by the Group. This survey of a representative sample of the population (more than 1,000 individuals), highlighted that the environment, and more Air Liquide seeks to ensure that these key stakes remain based on its specifically air quality and the climate, are unavoidable social challenges operations and, in 2017, the Group launched a survey of its Managing for the years ahead. Human Rights, healthcare, integration and job Directors across all countries in which it operates. Finally, those surveyed felt that industrial companies should play greater roles in responding to some of these challenges. The two lines of action of the Group’s Sustainable Development strategy M oreover, Air Liquide affirm s its am bition to contribute to a m ore latter relies heavily on its operations, but also im plem ents m easures in sustainable world. For these reasons, given its understanding of the favor of local developm ent, notably through its Foundation. This agreem ent has now been signed by 195 countries France, the Air Quality Plan in the United Kingdom, am ong others. Liquide’s m ulti-disciplinary team s anticipate these regulatory changes According to certain predictive m odels (a), lim iting an increase in to provide a proactive response. Territories are also actively com itted to reducing their environm ental footprint: towns and cities are aim ing to Considering what hum ans have already em itted, there rem ains around m ake the switch to 100% renewable energy sources, polluting vehicles 900 Gt “that can be em itted” to lim it the tem perature increase to 2°C. Air quality Living well in towns and cities in term s of health and well-being has of 3. According to the W orld Health Organization, m ore than 80% of the Air Liquide contributes to im proving air quality in industry, transport and population is affected by air quality issues. The Group’s activities, its expertise in term s of people breathe in highly polluted air which leads to the prem ature death air, breathing and healthcare as well as its products and services related to the energy transition, enables it to work towards im proving air quality. Climate change Air Liquide has introduced concrete m easures as part of its Corporate Sustainability Program (see pages 81-92) in a response to clim ate stakes by developing solutions which reduce greenhouse gas em issions. Scientists believe C O2contributes to approxim ately 20% of the natural greenhouse that this gas plays an im portant role in the creation of cloud effect, through its ability to absorb heat. It is now com on to express greenhouse sun’s rays which alleviates global warm ing. The com position of these reefs and their role in the interactivity between the ocean and the atm osphere rem ain To avoid negative consequences for the clim ate, perm anent solutions relatively unknown. Local development Air Liquide is present in com unities for which respect is at the heart of developm ent, and aim s to support projects in the countries where the the Group’s concerns. The Group im plem ents philanthropic actions to protect the environm ent these philanthropic actions are im plem ented either directly by the and life and to prom ote local developm ent. The Air Liquide Corporate Group’s subsidiaries, or via the Air Liquide Foundation. Group departm ents, the aim of which is to draw up the Group’s clim ate objectives. Q solutions for clean industry; Q solutions for clean transport; Q easures to prom ote local developm ent. Solutions for clean industry Industry accounts for one third of total direct and indirect greenhouse gas Alm ost 60% of the Group’s innovation expenses in 2017 were related to em issions (a). A 10% reduction in greenhouse gas em issions in industries work to im prove air quality, health and the environm ental footprint. Air Liquide offers products and services which have a low im pact on air quality and the clim ate. To do so, the Group is im proving the Num erous applications of industrial and m edical gases protect the carbon content of its solutions as well as those of its energy purchases. Contribute to the reduction of industrial emissions the use of industrial gases during certain processes and over-the-fence supply of products and services enable the Group’s industrial custom ers to reduce their greenhouse gas and atm ospheric pollutant em issions. It is composed of a mix of sulfates, nitrates, ammonia, sodium chloride, black carbon, mineral dust and water. Air Liquide thus estim ates that these uses of oxygen have helped avoid Air Liquide has adapted the Cryocap™ technology to electrical power the em ission of 11. This Q 11 m illion tons related to the injection of oxygen into blast furnaces; technology is called Cryocap™ Oxy. C O2 is becom ing a com odity for m anufacturing concrete for In the glass m anufacturing industry, heat oxy-com bustion is another construction. These oxy-com bustion technologies reduce the nitrogen than 24 hours and the required am ount of water. Hydrogen for sustainable steel production Over-the-fence supply: an ef cient solution Steel is an essential m aterial in m odern life. Hydrogen 2 supply nevertheless m inim izes the global environm ental footprint of its injected into a traditional blast furnace helps reduce coal consum ption custom ers’ products. Air Liquide has that these virtuous technologies are optim ized via test and pilot schem es, been a benchm ark in water treatm ent for 35 years, and provides its then rolled out. To m eet the needs of the iron industry, large Q using pure oxygen to replace the air injected into the biological basins scale projects are currently being studied. M oreover, the world’s population is expected to increase Q to elim inate bacteria and viruses, the Group produces and sells ozone from 7. Finally, the scarcity of water and disinfects water quicker and without leaving a residual sm ell or taste. Develop products with a low environmental footprint the Group strives to im prove the energy and environm ental footprint of its products and services. Sustainable Developm ent criteria in the Group’s the role of energy procurem ent is essential for Air Liquide, in particular investm ent decisions for its im pact on the Group’s indirect em issions (Scope 2). Sustainable D evelopm ent criteria, particularly those relating to the Group’s energy procurem ent policy favors the purchase of electricity greenhouse gas em issions, water consum ption and relations with local from suppliers who have m ade the choice to produce low-carbon com unities, are included in the decision-m aking processes of the m ain solutions. Each tim e an electricity supply contract is up for renewal and Group investm ents. This this criterion was decisive for the renewal of contracts in Germ any and internal carbon price is voluntarily set by Air Liquide in order to assess Chile.

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The hygienic characteristics of the medical technology accompaniment to the development, creation and operation of installations equipped with video display terminals. Effects of electromagnetic pulse on blood-brain barrier permeability and tight junction proteins in rats. The effect on rat thymocytes of the simultaneous in vivo exposure to 50-Hz electric and magnetic field and to continuous light. Nonsurgical Vulvovaginal Rejuvenation With Radiofrequency and Laser Devices: A Literature Review and Comprehensive Update for Aesthetic Surgeons. On prevention of electromagnetic rays effects in workers exposed to extreme climate conditions. Effects of pulsed magnetic field treatment of soybean seeds on calli growth, cell damage, and biochemical changes under salt stress. The effect of mobile phone on the number of Purkinje cells: a stereological study. Effect of prenatal exposure to mobile phone on pyramidal cell numbers in the mouse hippocampus: a stereological study. 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The first experience in application of melatonin (melaxen) for prophylaxis of the effects of magnetic storms on patients with cardiovascular pathology. Unintentional deactivation of implantable cardioverter-defibrillators in health care settings. Ventricular oversensing in 518 patients with implanted cardiac defibrillators: incidence, complications, and solutions. First cell cycles of sea urchin Paracentrotus lividus are dramatically impaired by exposure to extremely low-frequency electromagnetic field. Cryosurgical ablation of liver tumors in colon cancer patients increases the serum total ganglioside level and then selectively augments antiganglioside IgM. Re: "Power-frequency electric and magnetic fields and risk of childhood leukemia in Canada". The efficacy of different methods for informing the public about the range dependency of magnetic fields from high voltage power lines. On minimisation of toxicity to skin during capacitive radio-frequency hyperthermia. Micronuclei in the blood and bone marrow cells of mice exposed to specific complex time-varying pulsed magnetic fields. Could myelin damage from radiofrequency electromagnetic field exposure help explain the functional impairment electrohypersensitivityfi Radiofrequency exposure in young and old: different sensitivities in light of age-relevant natural differences. Review of extensive workups of 34 patients overexposed to radiofrequency radiation. Cognitive performance measures in bioelectromagnetic research-critical evaluation and recommendations. Risk of childhood acute lymphoblastic leukaemia following parental occupational exposure to extremely low frequency electromagnetic fields. Neuroelectric mechanisms applied to low frequency electric and magnetic field exposure guidelines-part I: sinusoidal waveforms. Safety considerations concerning the minimum threshold for magnetic excitation of the heart. Apoptosis in haemopoietic progenitor cells exposed to extremely low-frequency magnetic fields. High-voltage overhead power lines in epidemiology: patterns of time variations in current load and magnetic fields. Effects of atmospheric and extra-terrestrial electromagnetic and corpuscular radiations on living organisms.

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